HDFS-10880. Federation Mount Table State Store internal API. Contributed by Jason Kace and Inigo Goiri.
(cherry picked from commit 58b97df661441150d35abd44b3a8606206b46441) (cherry picked from commit 6f0de2731806628b5b01bd1350225692147590da) Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/c77a04b1 Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/c77a04b1 Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/c77a04b1 Branch: refs/heads/branch-2 Commit: c77a04b10f9094dab7518c4264701cae9fe02d13 Parents: 6f787d2 Author: Inigo Goiri <inigo...@apache.org> Authored: Fri Aug 4 18:00:12 2017 -0700 Committer: vrushali <vrush...@apache.org> Committed: Fri Oct 20 11:22:31 2017 -0700 ---------------------------------------------------------------------- .../org/apache/hadoop/hdfs/DFSConfigKeys.java | 7 +- .../federation/resolver/MountTableManager.java | 80 +++ .../federation/resolver/MountTableResolver.java | 544 +++++++++++++++++++ .../federation/resolver/PathLocation.java | 124 ++++- .../resolver/order/DestinationOrder.java | 29 + .../federation/resolver/order/package-info.java | 29 + .../federation/router/FederationUtil.java | 56 +- .../hdfs/server/federation/router/Router.java | 3 +- .../federation/store/MountTableStore.java | 49 ++ .../federation/store/StateStoreService.java | 2 + .../store/impl/MountTableStoreImpl.java | 116 ++++ .../protocol/AddMountTableEntryRequest.java | 47 ++ .../protocol/AddMountTableEntryResponse.java | 42 ++ .../protocol/GetMountTableEntriesRequest.java | 49 ++ .../protocol/GetMountTableEntriesResponse.java | 53 ++ .../protocol/RemoveMountTableEntryRequest.java | 49 ++ .../protocol/RemoveMountTableEntryResponse.java | 42 ++ .../protocol/UpdateMountTableEntryRequest.java | 51 ++ .../protocol/UpdateMountTableEntryResponse.java | 43 ++ .../pb/AddMountTableEntryRequestPBImpl.java | 84 +++ .../pb/AddMountTableEntryResponsePBImpl.java | 76 +++ .../pb/GetMountTableEntriesRequestPBImpl.java | 76 +++ .../pb/GetMountTableEntriesResponsePBImpl.java | 104 ++++ .../pb/RemoveMountTableEntryRequestPBImpl.java | 76 +++ .../pb/RemoveMountTableEntryResponsePBImpl.java | 76 +++ .../pb/UpdateMountTableEntryRequestPBImpl.java | 96 ++++ .../pb/UpdateMountTableEntryResponsePBImpl.java | 76 +++ .../federation/store/records/MountTable.java | 301 ++++++++++ .../store/records/impl/pb/MountTablePBImpl.java | 213 ++++++++ .../src/main/proto/FederationProtocol.proto | 61 ++- .../hdfs/server/federation/MockResolver.java | 9 +- .../resolver/TestMountTableResolver.java | 396 ++++++++++++++ .../store/FederationStateStoreTestUtils.java | 16 + .../store/TestStateStoreMountTable.java | 250 +++++++++ .../store/driver/TestStateStoreDriverBase.java | 12 + .../store/records/TestMountTable.java | 176 ++++++ 36 files changed, 3437 insertions(+), 76 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java index 6d06bf2..f3bc592 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java @@ -26,6 +26,8 @@ import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys; import org.apache.hadoop.hdfs.protocol.HdfsConstants; import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault; import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.RamDiskReplicaLruTracker; +import org.apache.hadoop.hdfs.server.federation.resolver.FileSubclusterResolver; +import org.apache.hadoop.hdfs.server.federation.resolver.MountTableResolver; import org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver; import org.apache.hadoop.hdfs.server.federation.resolver.MembershipNamenodeResolver; import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreDriver; @@ -1070,8 +1072,9 @@ public class DFSConfigKeys extends CommonConfigurationKeys { // HDFS Router State Store connection public static final String FEDERATION_FILE_RESOLVER_CLIENT_CLASS = FEDERATION_ROUTER_PREFIX + "file.resolver.client.class"; - public static final String FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT = - "org.apache.hadoop.hdfs.server.federation.MockResolver"; + public static final Class<? extends FileSubclusterResolver> + FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT = + MountTableResolver.class; public static final String FEDERATION_NAMENODE_RESOLVER_CLIENT_CLASS = FEDERATION_ROUTER_PREFIX + "namenode.resolver.client.class"; public static final Class<? extends ActiveNamenodeResolver> http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableManager.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableManager.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableManager.java new file mode 100644 index 0000000..c2e4a5b --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableManager.java @@ -0,0 +1,80 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.resolver; + +import java.io.IOException; + +import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryResponse; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesResponse; +import org.apache.hadoop.hdfs.server.federation.store.protocol.RemoveMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.RemoveMountTableEntryResponse; +import org.apache.hadoop.hdfs.server.federation.store.protocol.UpdateMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.UpdateMountTableEntryResponse; + +/** + * Manage a mount table. + */ +public interface MountTableManager { + + /** + * Add an entry to the mount table. + * + * @param request Fully populated request object. + * @return True if the mount table entry was successfully committed to the + * data store. + * @throws IOException Throws exception if the data store is not initialized. + */ + AddMountTableEntryResponse addMountTableEntry( + AddMountTableEntryRequest request) throws IOException; + + /** + * Updates an existing entry in the mount table. + * + * @param request Fully populated request object. + * @return True if the mount table entry was successfully committed to the + * data store. + * @throws IOException Throws exception if the data store is not initialized. + */ + UpdateMountTableEntryResponse updateMountTableEntry( + UpdateMountTableEntryRequest request) throws IOException; + + /** + * Remove an entry from the mount table. + * + * @param request Fully populated request object. + * @return True the mount table entry was removed from the data store. + * @throws IOException Throws exception if the data store is not initialized. + */ + RemoveMountTableEntryResponse removeMountTableEntry( + RemoveMountTableEntryRequest request) throws IOException; + + /** + * List all mount table entries present at or below the path. Fetches from the + * state store. + * + * @param request Fully populated request object. + * + * @return List of all mount table entries under the path. Zero-length list if + * none are found. + * @throws IOException Throws exception if the data store cannot be queried. + */ + GetMountTableEntriesResponse getMountTableEntries( + GetMountTableEntriesRequest request) throws IOException; +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java new file mode 100644 index 0000000..13e3db3 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java @@ -0,0 +1,544 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.resolver; + +import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_ROUTER_DEFAULT_NAMESERVICE; + +import java.io.IOException; +import java.util.Collection; +import java.util.Collections; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.Set; +import java.util.SortedMap; +import java.util.TreeMap; +import java.util.TreeSet; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ConcurrentNavigableMap; +import java.util.concurrent.ConcurrentSkipListMap; +import java.util.concurrent.locks.Lock; +import java.util.concurrent.locks.ReadWriteLock; +import java.util.concurrent.locks.ReentrantReadWriteLock; + +import org.apache.hadoop.HadoopIllegalArgumentException; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.hdfs.DFSUtil; +import org.apache.hadoop.hdfs.DFSUtilClient; +import org.apache.hadoop.hdfs.server.federation.resolver.order.DestinationOrder; +import org.apache.hadoop.hdfs.server.federation.router.Router; +import org.apache.hadoop.hdfs.server.federation.store.MountTableStore; +import org.apache.hadoop.hdfs.server.federation.store.StateStoreCache; +import org.apache.hadoop.hdfs.server.federation.store.StateStoreService; +import org.apache.hadoop.hdfs.server.federation.store.StateStoreUnavailableException; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesResponse; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.annotations.VisibleForTesting; + +/** + * Mount table to map between global paths and remote locations. This allows the + * {@link org.apache.hadoop.hdfs.server.federation.router.Router Router} to map + * the global HDFS view to the remote namespaces. This is similar to + * {@link org.apache.hadoop.fs.viewfs.ViewFs ViewFs}. + * This is implemented as a tree. + */ +public class MountTableResolver + implements FileSubclusterResolver, StateStoreCache { + + private static final Logger LOG = + LoggerFactory.getLogger(MountTableResolver.class); + + /** Reference to Router. */ + private final Router router; + /** Reference to the State Store. */ + private final StateStoreService stateStore; + /** Interface to the mount table store. */ + private MountTableStore mountTableStore; + + /** If the tree has been initialized. */ + private boolean init = false; + /** Path -> Remote HDFS location. */ + private final TreeMap<String, MountTable> tree = new TreeMap<>(); + /** Path -> Remote location. */ + private final ConcurrentNavigableMap<String, PathLocation> locationCache = + new ConcurrentSkipListMap<>(); + + /** Default nameservice when no mount matches the math. */ + private String defaultNameService = ""; + + /** Synchronization for both the tree and the cache. */ + private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock(); + private final Lock readLock = readWriteLock.readLock(); + private final Lock writeLock = readWriteLock.writeLock(); + + + @VisibleForTesting + public MountTableResolver(Configuration conf) { + this(conf, (StateStoreService)null); + } + + public MountTableResolver(Configuration conf, Router routerService) { + this.router = routerService; + if (this.router != null) { + this.stateStore = this.router.getStateStore(); + } else { + this.stateStore = null; + } + + registerCacheExternal(); + initDefaultNameService(conf); + } + + public MountTableResolver(Configuration conf, StateStoreService store) { + this.router = null; + this.stateStore = store; + + registerCacheExternal(); + initDefaultNameService(conf); + } + + /** + * Request cache updates from the State Store for this resolver. + */ + private void registerCacheExternal() { + if (this.stateStore != null) { + this.stateStore.registerCacheExternal(this); + } + } + + /** + * Nameservice for APIs that cannot be resolved to a specific one. + * + * @param conf Configuration for this resolver. + */ + private void initDefaultNameService(Configuration conf) { + try { + this.defaultNameService = conf.get( + DFS_ROUTER_DEFAULT_NAMESERVICE, + DFSUtil.getNamenodeNameServiceId(conf)); + } catch (HadoopIllegalArgumentException e) { + LOG.error("Cannot find default name service, setting it to the first"); + Collection<String> nsIds = DFSUtilClient.getNameServiceIds(conf); + this.defaultNameService = nsIds.iterator().next(); + LOG.info("Default name service: {}", this.defaultNameService); + } + } + + /** + * Get a reference for the Router for this resolver. + * + * @return Router for this resolver. + */ + protected Router getRouter() { + return this.router; + } + + /** + * Get the mount table store for this resolver. + * + * @return Mount table store. + * @throws IOException If it cannot connect to the State Store. + */ + protected MountTableStore getMountTableStore() throws IOException { + if (this.mountTableStore == null) { + this.mountTableStore = this.stateStore.getRegisteredRecordStore( + MountTableStore.class); + if (this.mountTableStore == null) { + throw new IOException("State Store does not have an interface for " + + MountTableStore.class); + } + } + return this.mountTableStore; + } + + /** + * Add a mount entry to the table. + * + * @param entry The mount table record to add from the state store. + */ + public void addEntry(final MountTable entry) { + writeLock.lock(); + try { + String srcPath = entry.getSourcePath(); + this.tree.put(srcPath, entry); + invalidateLocationCache(srcPath); + } finally { + writeLock.unlock(); + } + this.init = true; + } + + /** + * Remove a mount table entry. + * + * @param srcPath Source path for the entry to remove. + */ + public void removeEntry(final String srcPath) { + writeLock.lock(); + try { + this.tree.remove(srcPath); + invalidateLocationCache(srcPath); + } finally { + writeLock.unlock(); + } + } + + /** + * Invalidates all cache entries below this path. It requires the write lock. + * + * @param src Source path. + */ + private void invalidateLocationCache(final String path) { + if (locationCache.isEmpty()) { + return; + } + // Determine next lexicographic entry after source path + String nextSrc = path + Character.MAX_VALUE; + ConcurrentNavigableMap<String, PathLocation> subMap = + locationCache.subMap(path, nextSrc); + for (final String key : subMap.keySet()) { + locationCache.remove(key); + } + } + + /** + * Updates the mount path tree with a new set of mount table entries. It also + * updates the needed caches. + * + * @param entries Full set of mount table entries to update. + */ + @VisibleForTesting + public void refreshEntries(final Collection<MountTable> entries) { + // The tree read/write must be atomic + writeLock.lock(); + try { + // New entries + Map<String, MountTable> newEntries = new ConcurrentHashMap<>(); + for (MountTable entry : entries) { + String srcPath = entry.getSourcePath(); + newEntries.put(srcPath, entry); + } + + // Old entries (reversed to sort from the leaves to the root) + Set<String> oldEntries = new TreeSet<>(Collections.reverseOrder()); + for (MountTable entry : getTreeValues("/")) { + String srcPath = entry.getSourcePath(); + oldEntries.add(srcPath); + } + + // Entries that need to be removed + for (String srcPath : oldEntries) { + if (!newEntries.containsKey(srcPath)) { + this.tree.remove(srcPath); + invalidateLocationCache(srcPath); + LOG.info("Removed stale mount point {} from resolver", srcPath); + } + } + + // Entries that need to be added + for (MountTable entry : entries) { + String srcPath = entry.getSourcePath(); + if (!oldEntries.contains(srcPath)) { + // Add node, it does not exist + this.tree.put(srcPath, entry); + LOG.info("Added new mount point {} to resolver", srcPath); + } else { + // Node exists, check for updates + MountTable existingEntry = this.tree.get(srcPath); + if (existingEntry != null && !existingEntry.equals(entry)) { + // Entry has changed + invalidateLocationCache(srcPath); + LOG.info("Updated mount point {} in resolver"); + } + } + } + } finally { + writeLock.unlock(); + } + this.init = true; + } + + /** + * Replaces the current in-memory cached of the mount table with a new + * version fetched from the data store. + */ + @Override + public boolean loadCache(boolean force) { + try { + // Our cache depends on the store, update it first + MountTableStore mountTable = this.getMountTableStore(); + mountTable.loadCache(force); + + GetMountTableEntriesRequest request = + GetMountTableEntriesRequest.newInstance("/"); + GetMountTableEntriesResponse response = + mountTable.getMountTableEntries(request); + List<MountTable> records = response.getEntries(); + refreshEntries(records); + } catch (IOException e) { + LOG.error("Cannot fetch mount table entries from State Store", e); + return false; + } + return true; + } + + /** + * Clears all data. + */ + public void clear() { + LOG.info("Clearing all mount location caches"); + writeLock.lock(); + try { + this.locationCache.clear(); + this.tree.clear(); + } finally { + writeLock.unlock(); + } + } + + @Override + public PathLocation getDestinationForPath(final String path) + throws IOException { + verifyMountTable(); + readLock.lock(); + try { + return this.locationCache.computeIfAbsent( + path, this::lookupLocation); + } finally { + readLock.unlock(); + } + } + + /** + * Build the path location to insert into the cache atomically. It must hold + * the read lock. + * @param path Path to check/insert. + * @return New remote location. + */ + public PathLocation lookupLocation(final String path) { + PathLocation ret = null; + MountTable entry = findDeepest(path); + if (entry != null) { + ret = buildLocation(path, entry); + } else { + // Not found, use default location + RemoteLocation remoteLocation = + new RemoteLocation(defaultNameService, path); + List<RemoteLocation> locations = + Collections.singletonList(remoteLocation); + ret = new PathLocation(null, locations); + } + return ret; + } + + /** + * Get the mount table entry for a path. + * + * @param path Path to look for. + * @return Mount table entry the path belongs. + * @throws IOException If the State Store could not be reached. + */ + public MountTable getMountPoint(final String path) throws IOException { + verifyMountTable(); + return findDeepest(path); + } + + @Override + public List<String> getMountPoints(final String path) throws IOException { + verifyMountTable(); + + Set<String> children = new TreeSet<>(); + readLock.lock(); + try { + String from = path; + String to = path + Character.MAX_VALUE; + SortedMap<String, MountTable> subMap = this.tree.subMap(from, to); + + boolean exists = false; + for (String subPath : subMap.keySet()) { + String child = subPath; + + // Special case for / + if (!path.equals(Path.SEPARATOR)) { + // Get the children + int ini = path.length(); + child = subPath.substring(ini); + } + + if (child.isEmpty()) { + // This is a mount point but without children + exists = true; + } else if (child.startsWith(Path.SEPARATOR)) { + // This is a mount point with children + exists = true; + child = child.substring(1); + + // We only return immediate children + int fin = child.indexOf(Path.SEPARATOR); + if (fin > -1) { + child = child.substring(0, fin); + } + if (!child.isEmpty()) { + children.add(child); + } + } + } + if (!exists) { + return null; + } + return new LinkedList<>(children); + } finally { + readLock.unlock(); + } + } + + /** + * Get all the mount records at or beneath a given path. + * @param path Path to get the mount points from. + * @return List of mount table records under the path or null if the path is + * not found. + * @throws IOException If it's not connected to the State Store. + */ + public List<MountTable> getMounts(final String path) throws IOException { + verifyMountTable(); + + return getTreeValues(path, false); + } + + /** + * Check if the Mount Table is ready to be used. + * @throws StateStoreUnavailableException If it cannot connect to the store. + */ + private void verifyMountTable() throws StateStoreUnavailableException { + if (!this.init) { + throw new StateStoreUnavailableException("Mount Table not initialized"); + } + } + + @Override + public String toString() { + readLock.lock(); + try { + return this.tree.toString(); + } finally { + readLock.unlock(); + } + } + + /** + * Build a location for this result beneath the discovered mount point. + * + * @param result Tree node search result. + * @return PathLocation containing the namespace, local path. + */ + private static PathLocation buildLocation( + final String path, final MountTable entry) { + + String srcPath = entry.getSourcePath(); + if (!path.startsWith(srcPath)) { + LOG.error("Cannot build location, {} not a child of {}", path, srcPath); + return null; + } + String remainingPath = path.substring(srcPath.length()); + if (remainingPath.startsWith(Path.SEPARATOR)) { + remainingPath = remainingPath.substring(1); + } + + List<RemoteLocation> locations = new LinkedList<>(); + for (RemoteLocation oneDst : entry.getDestinations()) { + String nsId = oneDst.getNameserviceId(); + String dest = oneDst.getDest(); + String newPath = dest; + if (!newPath.endsWith(Path.SEPARATOR)) { + newPath += Path.SEPARATOR; + } + newPath += remainingPath; + RemoteLocation remoteLocation = new RemoteLocation(nsId, newPath); + locations.add(remoteLocation); + } + DestinationOrder order = entry.getDestOrder(); + return new PathLocation(srcPath, locations, order); + } + + @Override + public String getDefaultNamespace() { + return this.defaultNameService; + } + + /** + * Find the deepest mount point for a path. + * @param path Path to look for. + * @return Mount table entry. + */ + private MountTable findDeepest(final String path) { + readLock.lock(); + try { + Entry<String, MountTable> entry = this.tree.floorEntry(path); + while (entry != null && !path.startsWith(entry.getKey())) { + entry = this.tree.lowerEntry(entry.getKey()); + } + if (entry == null) { + return null; + } + return entry.getValue(); + } finally { + readLock.unlock(); + } + } + + /** + * Get the mount table entries under a path. + * @param path Path to search from. + * @return Mount Table entries. + */ + private List<MountTable> getTreeValues(final String path) { + return getTreeValues(path, false); + } + + /** + * Get the mount table entries under a path. + * @param path Path to search from. + * @param reverse If the order should be reversed. + * @return Mount Table entries. + */ + private List<MountTable> getTreeValues(final String path, boolean reverse) { + LinkedList<MountTable> ret = new LinkedList<>(); + readLock.lock(); + try { + String from = path; + String to = path + Character.MAX_VALUE; + SortedMap<String, MountTable> subMap = this.tree.subMap(from, to); + for (MountTable entry : subMap.values()) { + if (!reverse) { + ret.add(entry); + } else { + ret.addFirst(entry); + } + } + } finally { + readLock.unlock(); + } + return ret; + } +} http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/PathLocation.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/PathLocation.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/PathLocation.java index d90565c..945d81d 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/PathLocation.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/PathLocation.java @@ -23,21 +23,27 @@ import java.util.LinkedList; import java.util.List; import java.util.Set; +import org.apache.hadoop.hdfs.server.federation.resolver.order.DestinationOrder; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + /** * A map of the properties and target destinations (name space + path) for - * a path in the global/federated namespace. + * a path in the global/federated name space. * This data is generated from the @see MountTable records. */ public class PathLocation { + private static final Logger LOG = LoggerFactory.getLogger(PathLocation.class); + + /** Source path in global namespace. */ private final String sourcePath; - /** Remote paths in the target namespaces. */ + /** Remote paths in the target name spaces. */ private final List<RemoteLocation> destinations; - - /** List of name spaces present. */ - private final Set<String> namespaces; + /** Order for the destinations. */ + private final DestinationOrder destOrder; /** @@ -45,14 +51,23 @@ public class PathLocation { * * @param source Source path in the global name space. * @param dest Destinations of the mount table entry. - * @param namespaces Unique identifier representing the combination of - * name spaces present in the destination list. + * @param order Order of the locations. */ public PathLocation( - String source, List<RemoteLocation> dest, Set<String> nss) { + String source, List<RemoteLocation> dest, DestinationOrder order) { this.sourcePath = source; - this.destinations = dest; - this.namespaces = nss; + this.destinations = Collections.unmodifiableList(dest); + this.destOrder = order; + } + + /** + * Create a new PathLocation with default HASH order. + * + * @param source Source path in the global name space. + * @param dest Destinations of the mount table entry. + */ + public PathLocation(String source, List<RemoteLocation> dest) { + this(source, dest, DestinationOrder.HASH); } /** @@ -60,10 +75,55 @@ public class PathLocation { * * @param other Other path location to copy from. */ - public PathLocation(PathLocation other) { + public PathLocation(final PathLocation other) { this.sourcePath = other.sourcePath; - this.destinations = new LinkedList<RemoteLocation>(other.destinations); - this.namespaces = new HashSet<String>(other.namespaces); + this.destinations = Collections.unmodifiableList(other.destinations); + this.destOrder = other.destOrder; + } + + /** + * Create a path location from another path with the destinations sorted. + * + * @param other Other path location to copy from. + * @param firstNsId Identifier of the namespace to place first. + */ + public PathLocation(PathLocation other, String firstNsId) { + this.sourcePath = other.sourcePath; + this.destOrder = other.destOrder; + this.destinations = orderedNamespaces(other.destinations, firstNsId); + } + + /** + * Prioritize a location/destination by its name space/nameserviceId. + * This destination might be used by other threads, so the source is not + * modifiable. + * + * @param original List of destinations to order. + * @param nsId The name space/nameserviceID to prioritize. + * @return Prioritized list of detinations that cannot be modified. + */ + private static List<RemoteLocation> orderedNamespaces( + final List<RemoteLocation> original, final String nsId) { + if (original.size() <= 1) { + return original; + } + + LinkedList<RemoteLocation> newDestinations = new LinkedList<>(); + boolean found = false; + for (RemoteLocation dest : original) { + if (dest.getNameserviceId().equals(nsId)) { + found = true; + newDestinations.addFirst(dest); + } else { + newDestinations.add(dest); + } + } + + if (!found) { + LOG.debug("Cannot find location with namespace {} in {}", + nsId, original); + } + return Collections.unmodifiableList(newDestinations); } /** @@ -76,16 +136,37 @@ public class PathLocation { } /** - * Get the list of subclusters defined for the destinations. + * Get the subclusters defined for the destinations. + * + * @return Set containing the subclusters. */ public Set<String> getNamespaces() { - return Collections.unmodifiableSet(this.namespaces); + Set<String> namespaces = new HashSet<>(); + List<RemoteLocation> locations = this.getDestinations(); + for (RemoteLocation location : locations) { + String nsId = location.getNameserviceId(); + namespaces.add(nsId); + } + return namespaces; } @Override public String toString() { - RemoteLocation loc = getDefaultLocation(); - return loc.getNameserviceId() + "->" + loc.getDest(); + StringBuilder sb = new StringBuilder(); + for (RemoteLocation destination : this.destinations) { + String nsId = destination.getNameserviceId(); + String path = destination.getDest(); + if (sb.length() > 0) { + sb.append(","); + } + sb.append(nsId + "->" + path); + } + if (this.destinations.size() > 1) { + sb.append(" ["); + sb.append(this.destOrder.toString()); + sb.append("]"); + } + return sb.toString(); } /** @@ -108,6 +189,15 @@ public class PathLocation { } /** + * Get the order for the destinations. + * + * @return Order for the destinations. + */ + public DestinationOrder getDestinationOrder() { + return this.destOrder; + } + + /** * Get the default or highest priority location. * * @return The default location. http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/DestinationOrder.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/DestinationOrder.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/DestinationOrder.java new file mode 100644 index 0000000..4bccf10 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/DestinationOrder.java @@ -0,0 +1,29 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.resolver.order; + +/** + * Order of the destinations when we have multiple of them. When the resolver + * of files to subclusters (FileSubclusterResolver) has multiple destinations, + * this determines which location should be checked first. + */ +public enum DestinationOrder { + HASH, // Follow consistent hashing + LOCAL, // Local first + RANDOM // Random order +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/package-info.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/package-info.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/package-info.java new file mode 100644 index 0000000..f90152f --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/package-info.java @@ -0,0 +1,29 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/** + * A federated location can be resolved to multiple subclusters. This package + * takes care of the order in which this multiple destinations should be used. + */ +@InterfaceAudience.Private +@InterfaceStability.Evolving + +package org.apache.hadoop.hdfs.server.federation.resolver.order; + +import org.apache.hadoop.classification.InterfaceAudience; +import org.apache.hadoop.classification.InterfaceStability; http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/FederationUtil.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/FederationUtil.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/FederationUtil.java index 78c473a..99af2d8 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/FederationUtil.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/FederationUtil.java @@ -136,65 +136,19 @@ public final class FederationUtil { } /** - * Create an instance of an interface with a constructor using a state store - * constructor. - * - * @param conf Configuration - * @param context Context object to pass to the instance. - * @param contextType Type of the context passed to the constructor. - * @param configurationKeyName Configuration key to retrieve the class to load - * @param defaultClassName Default class to load if the configuration key is - * not set - * @param clazz Class/interface that must be implemented by the instance. - * @return New instance of the specified class that implements the desired - * interface and a single parameter constructor containing a - * StateStore reference. - */ - private static <T, R> T newInstance(final Configuration conf, - final R context, final Class<R> contextClass, - final String configKeyName, final String defaultClassName, - final Class<T> clazz) { - - String className = conf.get(configKeyName, defaultClassName); - try { - Class<?> instance = conf.getClassByName(className); - if (clazz.isAssignableFrom(instance)) { - if (contextClass == null) { - // Default constructor if no context - @SuppressWarnings("unchecked") - Constructor<T> constructor = - (Constructor<T>) instance.getConstructor(); - return constructor.newInstance(); - } else { - // Constructor with context - @SuppressWarnings("unchecked") - Constructor<T> constructor = (Constructor<T>) instance.getConstructor( - Configuration.class, contextClass); - return constructor.newInstance(conf, context); - } - } else { - throw new RuntimeException("Class " + className + " not instance of " - + clazz.getCanonicalName()); - } - } catch (ReflectiveOperationException e) { - LOG.error("Could not instantiate: " + className, e); - return null; - } - } - - /** * Creates an instance of a FileSubclusterResolver from the configuration. * * @param conf Configuration that defines the file resolver class. - * @param obj Context object passed to class constructor. - * @return FileSubclusterResolver + * @param router Router service. + * @return New file subcluster resolver. */ public static FileSubclusterResolver newFileSubclusterResolver( - Configuration conf, StateStoreService stateStore) { - return newInstance(conf, stateStore, StateStoreService.class, + Configuration conf, Router router) { + Class<? extends FileSubclusterResolver> clazz = conf.getClass( DFSConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS, DFSConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT, FileSubclusterResolver.class); + return newInstance(conf, router, Router.class, clazz); } /** http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/Router.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/Router.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/Router.java index cfddf20..213a58f 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/Router.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/router/Router.java @@ -124,8 +124,7 @@ public class Router extends CompositeService { } // Lookup interface to map between the global and subcluster name spaces - this.subclusterResolver = newFileSubclusterResolver( - this.conf, this.stateStore); + this.subclusterResolver = newFileSubclusterResolver(this.conf, this); if (this.subclusterResolver == null) { throw new IOException("Cannot find subcluster resolver"); } http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/MountTableStore.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/MountTableStore.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/MountTableStore.java new file mode 100644 index 0000000..b439659 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/MountTableStore.java @@ -0,0 +1,49 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store; + +import org.apache.hadoop.classification.InterfaceAudience; +import org.apache.hadoop.classification.InterfaceStability; +import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreDriver; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; + +/** + * Management API for the HDFS mount table information stored in + * {@link org.apache.hadoop.hdfs.server.federation.store.records.MountTable + * MountTable} records. The mount table contains entries that map a particular + * global namespace path one or more HDFS nameservices (NN) + target path. It is + * possible to map mount locations for root folders, directories or individual + * files. + * <p> + * Once fetched from the + * {@link org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreDriver + * StateStoreDriver}, MountTable records are cached in a tree for faster access. + * Each path in the global namespace is mapped to a nameserivce ID and local + * path upon request. The cache is periodically updated by the @{link + * StateStoreCacheUpdateService}. + */ +@InterfaceAudience.Private +@InterfaceStability.Evolving +public abstract class MountTableStore extends CachedRecordStore<MountTable> + implements MountTableManager { + + public MountTableStore(StateStoreDriver driver) { + super(MountTable.class, driver); + } +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/StateStoreService.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/StateStoreService.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/StateStoreService.java index 73f607f..3aa3ffd 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/StateStoreService.java +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/StateStoreService.java @@ -31,6 +31,7 @@ import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hdfs.DFSConfigKeys; import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreDriver; import org.apache.hadoop.hdfs.server.federation.store.impl.MembershipStoreImpl; +import org.apache.hadoop.hdfs.server.federation.store.impl.MountTableStoreImpl; import org.apache.hadoop.hdfs.server.federation.store.records.BaseRecord; import org.apache.hadoop.hdfs.server.federation.store.records.MembershipState; import org.apache.hadoop.service.CompositeService; @@ -136,6 +137,7 @@ public class StateStoreService extends CompositeService { // Add supported record stores addRecordStore(MembershipStoreImpl.class); + addRecordStore(MountTableStoreImpl.class); // Check the connection to the State Store periodically this.monitorService = new StateStoreConnectionMonitorService(this); http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/impl/MountTableStoreImpl.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/impl/MountTableStoreImpl.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/impl/MountTableStoreImpl.java new file mode 100644 index 0000000..e6affb2 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/impl/MountTableStoreImpl.java @@ -0,0 +1,116 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.impl; + +import java.io.IOException; +import java.util.Collections; +import java.util.Iterator; +import java.util.List; + +import org.apache.hadoop.classification.InterfaceAudience; +import org.apache.hadoop.classification.InterfaceStability; +import org.apache.hadoop.hdfs.server.federation.store.MountTableStore; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreDriver; +import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryResponse; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesResponse; +import org.apache.hadoop.hdfs.server.federation.store.protocol.RemoveMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.RemoveMountTableEntryResponse; +import org.apache.hadoop.hdfs.server.federation.store.protocol.UpdateMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.protocol.UpdateMountTableEntryResponse; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; +import org.apache.hadoop.hdfs.server.federation.store.records.Query; +import org.apache.hadoop.util.Time; + +/** + * Implementation of the {@link MountTableStore} state store API. + */ +@InterfaceAudience.Private +@InterfaceStability.Evolving +public class MountTableStoreImpl extends MountTableStore { + + public MountTableStoreImpl(StateStoreDriver driver) { + super(driver); + } + + @Override + public AddMountTableEntryResponse addMountTableEntry( + AddMountTableEntryRequest request) throws IOException { + boolean status = getDriver().put(request.getEntry(), false, true); + AddMountTableEntryResponse response = + AddMountTableEntryResponse.newInstance(); + response.setStatus(status); + return response; + } + + @Override + public UpdateMountTableEntryResponse updateMountTableEntry( + UpdateMountTableEntryRequest request) throws IOException { + MountTable entry = request.getEntry(); + boolean status = getDriver().put(entry, true, true); + UpdateMountTableEntryResponse response = + UpdateMountTableEntryResponse.newInstance(); + response.setStatus(status); + return response; + } + + @Override + public RemoveMountTableEntryResponse removeMountTableEntry( + RemoveMountTableEntryRequest request) throws IOException { + final String srcPath = request.getSrcPath(); + final MountTable partial = MountTable.newInstance(); + partial.setSourcePath(srcPath); + final Query<MountTable> query = new Query<>(partial); + int removedRecords = getDriver().remove(getRecordClass(), query); + boolean status = (removedRecords == 1); + RemoveMountTableEntryResponse response = + RemoveMountTableEntryResponse.newInstance(); + response.setStatus(status); + return response; + } + + @Override + public GetMountTableEntriesResponse getMountTableEntries( + GetMountTableEntriesRequest request) throws IOException { + + // Get all values from the cache + List<MountTable> records = getCachedRecords(); + + // Sort and filter + Collections.sort(records); + String reqSrcPath = request.getSrcPath(); + if (reqSrcPath != null && !reqSrcPath.isEmpty()) { + // Return only entries beneath this path + Iterator<MountTable> it = records.iterator(); + while (it.hasNext()) { + MountTable record = it.next(); + String srcPath = record.getSourcePath(); + if (!srcPath.startsWith(reqSrcPath)) { + it.remove(); + } + } + } + + GetMountTableEntriesResponse response = + GetMountTableEntriesResponse.newInstance(); + response.setEntries(records); + response.setTimestamp(Time.now()); + return response; + } +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryRequest.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryRequest.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryRequest.java new file mode 100644 index 0000000..2d9f102 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryRequest.java @@ -0,0 +1,47 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; + +/** + * API request for adding a mount table entry to the state store. + */ +public abstract class AddMountTableEntryRequest { + + public static AddMountTableEntryRequest newInstance() { + return StateStoreSerializer.newRecord(AddMountTableEntryRequest.class); + } + + public static AddMountTableEntryRequest newInstance(MountTable newEntry) { + AddMountTableEntryRequest request = newInstance(); + request.setEntry(newEntry); + return request; + } + + @Public + @Unstable + public abstract MountTable getEntry(); + + @Public + @Unstable + public abstract void setEntry(MountTable mount); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryResponse.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryResponse.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryResponse.java new file mode 100644 index 0000000..9bc7f92 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/AddMountTableEntryResponse.java @@ -0,0 +1,42 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; + +/** + * API response for adding a mount table entry to the state store. + */ +public abstract class AddMountTableEntryResponse { + + public static AddMountTableEntryResponse newInstance() throws IOException { + return StateStoreSerializer.newRecord(AddMountTableEntryResponse.class); + } + + @Public + @Unstable + public abstract boolean getStatus(); + + @Public + @Unstable + public abstract void setStatus(boolean result); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesRequest.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesRequest.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesRequest.java new file mode 100644 index 0000000..cd6c278 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesRequest.java @@ -0,0 +1,49 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; + +/** + * API request for listing mount table entries present in the state store. + */ +public abstract class GetMountTableEntriesRequest { + + public static GetMountTableEntriesRequest newInstance() throws IOException { + return StateStoreSerializer.newRecord(GetMountTableEntriesRequest.class); + } + + public static GetMountTableEntriesRequest newInstance(String srcPath) + throws IOException { + GetMountTableEntriesRequest request = newInstance(); + request.setSrcPath(srcPath); + return request; + } + + @Public + @Unstable + public abstract String getSrcPath(); + + @Public + @Unstable + public abstract void setSrcPath(String path); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesResponse.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesResponse.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesResponse.java new file mode 100644 index 0000000..cebc3f6 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/GetMountTableEntriesResponse.java @@ -0,0 +1,53 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; +import java.util.List; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; + +/** + * API response for listing mount table entries present in the state store. + */ +public abstract class GetMountTableEntriesResponse { + + public static GetMountTableEntriesResponse newInstance() throws IOException { + return StateStoreSerializer.newRecord(GetMountTableEntriesResponse.class); + } + + @Public + @Unstable + public abstract List<MountTable> getEntries() throws IOException; + + @Public + @Unstable + public abstract void setEntries(List<MountTable> entries) + throws IOException; + + @Public + @Unstable + public abstract long getTimestamp(); + + @Public + @Unstable + public abstract void setTimestamp(long time); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryRequest.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryRequest.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryRequest.java new file mode 100644 index 0000000..642ee0d --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryRequest.java @@ -0,0 +1,49 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; + +/** + * API request for removing a mount table path present in the state store. + */ +public abstract class RemoveMountTableEntryRequest { + + public static RemoveMountTableEntryRequest newInstance() throws IOException { + return StateStoreSerializer.newRecord(RemoveMountTableEntryRequest.class); + } + + public static RemoveMountTableEntryRequest newInstance(String path) + throws IOException { + RemoveMountTableEntryRequest request = newInstance(); + request.setSrcPath(path); + return request; + } + + @Public + @Unstable + public abstract String getSrcPath(); + + @Public + @Unstable + public abstract void setSrcPath(String path); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryResponse.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryResponse.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryResponse.java new file mode 100644 index 0000000..70f117d --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/RemoveMountTableEntryResponse.java @@ -0,0 +1,42 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; + +/** + * API response for removing a mount table path present in the state store. + */ +public abstract class RemoveMountTableEntryResponse { + + public static RemoveMountTableEntryResponse newInstance() throws IOException { + return StateStoreSerializer.newRecord(RemoveMountTableEntryResponse.class); + } + + @Public + @Unstable + public abstract boolean getStatus(); + + @Public + @Unstable + public abstract void setStatus(boolean result); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryRequest.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryRequest.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryRequest.java new file mode 100644 index 0000000..afd5128 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryRequest.java @@ -0,0 +1,51 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; + +/** + * API request for updating the destination of an existing mount point in the + * state store. + */ +public abstract class UpdateMountTableEntryRequest { + + public static UpdateMountTableEntryRequest newInstance() throws IOException { + return StateStoreSerializer.newRecord(UpdateMountTableEntryRequest.class); + } + + public static UpdateMountTableEntryRequest newInstance(MountTable entry) + throws IOException { + UpdateMountTableEntryRequest request = newInstance(); + request.setEntry(entry); + return request; + } + + @Public + @Unstable + public abstract MountTable getEntry() throws IOException; + + @Public + @Unstable + public abstract void setEntry(MountTable mount) throws IOException; +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryResponse.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryResponse.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryResponse.java new file mode 100644 index 0000000..7097e10 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/UpdateMountTableEntryResponse.java @@ -0,0 +1,43 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol; + +import java.io.IOException; + +import org.apache.hadoop.classification.InterfaceAudience.Public; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerializer; + +/** + * API response for updating the destination of an existing mount point in the + * state store. + */ +public abstract class UpdateMountTableEntryResponse { + + public static UpdateMountTableEntryResponse newInstance() throws IOException { + return StateStoreSerializer.newRecord(UpdateMountTableEntryResponse.class); + } + + @Public + @Unstable + public abstract boolean getStatus(); + + @Public + @Unstable + public abstract void setStatus(boolean result); +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryRequestPBImpl.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryRequestPBImpl.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryRequestPBImpl.java new file mode 100644 index 0000000..35455d2 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryRequestPBImpl.java @@ -0,0 +1,84 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol.impl.pb; + +import java.io.IOException; + +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.AddMountTableEntryRequestProto; +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.AddMountTableEntryRequestProtoOrBuilder; +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.MountTableRecordProto; +import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryRequest; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; +import org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.MountTablePBImpl; +import org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.PBRecord; + +import com.google.protobuf.Message; + +/** + * Protobuf implementation of the state store API object + * AddMountTableEntryRequest. + */ +public class AddMountTableEntryRequestPBImpl + extends AddMountTableEntryRequest implements PBRecord { + + private FederationProtocolPBTranslator<AddMountTableEntryRequestProto, + AddMountTableEntryRequestProto.Builder, + AddMountTableEntryRequestProtoOrBuilder> translator = + new FederationProtocolPBTranslator<AddMountTableEntryRequestProto, + AddMountTableEntryRequestProto.Builder, + AddMountTableEntryRequestProtoOrBuilder>( + AddMountTableEntryRequestProto.class); + + public AddMountTableEntryRequestPBImpl() { + } + + public AddMountTableEntryRequestPBImpl(AddMountTableEntryRequestProto proto) { + this.translator.setProto(proto); + } + + @Override + public AddMountTableEntryRequestProto getProto() { + return this.translator.build(); + } + + @Override + public void setProto(Message proto) { + this.translator.setProto(proto); + } + + @Override + public void readInstance(String base64String) throws IOException { + this.translator.readInstance(base64String); + } + + @Override + public MountTable getEntry() { + MountTableRecordProto entryProto = + this.translator.getProtoOrBuilder().getEntry(); + return new MountTablePBImpl(entryProto); + } + + @Override + public void setEntry(MountTable mount) { + if (mount instanceof MountTablePBImpl) { + MountTablePBImpl mountPB = (MountTablePBImpl)mount; + MountTableRecordProto mountProto = mountPB.getProto(); + translator.getBuilder().setEntry(mountProto); + } + } +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryResponsePBImpl.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryResponsePBImpl.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryResponsePBImpl.java new file mode 100644 index 0000000..c1d9a65 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/AddMountTableEntryResponsePBImpl.java @@ -0,0 +1,76 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol.impl.pb; + +import java.io.IOException; + +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.AddMountTableEntryResponseProto; +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.AddMountTableEntryResponseProtoOrBuilder; +import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryResponse; +import org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.PBRecord; + +import com.google.protobuf.Message; + +/** + * Protobuf implementation of the state store API object + * AddMountTableEntryResponse. + */ +public class AddMountTableEntryResponsePBImpl + extends AddMountTableEntryResponse implements PBRecord { + + private FederationProtocolPBTranslator<AddMountTableEntryResponseProto, + AddMountTableEntryResponseProto.Builder, + AddMountTableEntryResponseProtoOrBuilder> translator = + new FederationProtocolPBTranslator<AddMountTableEntryResponseProto, + AddMountTableEntryResponseProto.Builder, + AddMountTableEntryResponseProtoOrBuilder>( + AddMountTableEntryResponseProto.class); + + public AddMountTableEntryResponsePBImpl() { + } + + public AddMountTableEntryResponsePBImpl( + AddMountTableEntryResponseProto proto) { + this.translator.setProto(proto); + } + + @Override + public AddMountTableEntryResponseProto getProto() { + return this.translator.build(); + } + + @Override + public void setProto(Message proto) { + this.translator.setProto(proto); + } + + @Override + public void readInstance(String base64String) throws IOException { + this.translator.readInstance(base64String); + } + + @Override + public boolean getStatus() { + return this.translator.getProtoOrBuilder().getStatus(); + } + + @Override + public void setStatus(boolean result) { + this.translator.getBuilder().setStatus(result); + } +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesRequestPBImpl.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesRequestPBImpl.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesRequestPBImpl.java new file mode 100644 index 0000000..3e0d1a6 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesRequestPBImpl.java @@ -0,0 +1,76 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol.impl.pb; + +import java.io.IOException; + +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.GetMountTableEntriesRequestProto; +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.GetMountTableEntriesRequestProtoOrBuilder; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesRequest; +import org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.PBRecord; + +import com.google.protobuf.Message; + +/** + * Protobuf implementation of the state store API object + * GetMountTableEntriesRequest. + */ +public class GetMountTableEntriesRequestPBImpl + extends GetMountTableEntriesRequest implements PBRecord { + + private FederationProtocolPBTranslator<GetMountTableEntriesRequestProto, + GetMountTableEntriesRequestProto.Builder, + GetMountTableEntriesRequestProtoOrBuilder> translator = + new FederationProtocolPBTranslator<GetMountTableEntriesRequestProto, + GetMountTableEntriesRequestProto.Builder, + GetMountTableEntriesRequestProtoOrBuilder>( + GetMountTableEntriesRequestProto.class); + + public GetMountTableEntriesRequestPBImpl() { + } + + public GetMountTableEntriesRequestPBImpl( + GetMountTableEntriesRequestProto proto) { + this.translator.setProto(proto); + } + + @Override + public GetMountTableEntriesRequestProto getProto() { + return this.translator.build(); + } + + @Override + public void setProto(Message proto) { + this.translator.setProto(proto); + } + + @Override + public void readInstance(String base64String) throws IOException { + this.translator.readInstance(base64String); + } + + @Override + public String getSrcPath() { + return this.translator.getProtoOrBuilder().getSrcPath(); + } + + @Override + public void setSrcPath(String path) { + this.translator.getBuilder().setSrcPath(path); + } +} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/hadoop/blob/c77a04b1/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesResponsePBImpl.java ---------------------------------------------------------------------- diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesResponsePBImpl.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesResponsePBImpl.java new file mode 100644 index 0000000..9d64bc9 --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/federation/store/protocol/impl/pb/GetMountTableEntriesResponsePBImpl.java @@ -0,0 +1,104 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.federation.store.protocol.impl.pb; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; + +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.GetMountTableEntriesResponseProto; +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.GetMountTableEntriesResponseProtoOrBuilder; +import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.MountTableRecordProto; +import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesResponse; +import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; +import org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.MountTablePBImpl; +import org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.PBRecord; + +import com.google.protobuf.Message; + +/** + * Protobuf implementation of the state store API object + * GetMountTableEntriesResponse. + */ +public class GetMountTableEntriesResponsePBImpl + extends GetMountTableEntriesResponse implements PBRecord { + + private FederationProtocolPBTranslator<GetMountTableEntriesResponseProto, + GetMountTableEntriesResponseProto.Builder, + GetMountTableEntriesResponseProtoOrBuilder> translator = + new FederationProtocolPBTranslator<GetMountTableEntriesResponseProto, + GetMountTableEntriesResponseProto.Builder, + GetMountTableEntriesResponseProtoOrBuilder>( + GetMountTableEntriesResponseProto.class); + + public GetMountTableEntriesResponsePBImpl() { + } + + public GetMountTableEntriesResponsePBImpl( + GetMountTableEntriesResponseProto proto) { + this.translator.setProto(proto); + } + + @Override + public GetMountTableEntriesResponseProto getProto() { + return this.translator.build(); + } + + @Override + public void setProto(Message proto) { + this.translator.setProto(proto); + } + + @Override + public void readInstance(String base64String) throws IOException { + this.translator.readInstance(base64String); + } + + @Override + public List<MountTable> getEntries() throws IOException { + List<MountTableRecordProto> entries = + this.translator.getProtoOrBuilder().getEntriesList(); + List<MountTable> ret = new ArrayList<MountTable>(); + for (MountTableRecordProto entry : entries) { + MountTable record = new MountTablePBImpl(entry); + ret.add(record); + } + return ret; + } + + @Override + public void setEntries(List<MountTable> records) throws IOException { + this.translator.getBuilder().clearEntries(); + for (MountTable entry : records) { + if (entry instanceof MountTablePBImpl) { + MountTablePBImpl entryPB = (MountTablePBImpl)entry; + this.translator.getBuilder().addEntries(entryPB.getProto()); + } + } + } + + @Override + public long getTimestamp() { + return this.translator.getProtoOrBuilder().getTimestamp(); + } + + @Override + public void setTimestamp(long time) { + this.translator.getBuilder().setTimestamp(time); + } +} \ No newline at end of file --------------------------------------------------------------------- To unsubscribe, e-mail: common-commits-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-commits-h...@hadoop.apache.org
