paul-rogers commented on a change in pull request #1500: DRILL-6820: Msgpack format reader URL: https://github.com/apache/drill/pull/1500#discussion_r230651284
########## File path: contrib/format-msgpack/src/main/java/org/apache/drill/exec/store/msgpack/MsgpackFormatPlugin.java ########## @@ -0,0 +1,212 @@ +/* + * 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.drill.exec.store.msgpack; + +import java.io.IOException; +import java.util.List; + +import org.apache.drill.common.expression.SchemaPath; +import org.apache.drill.common.logical.FormatPluginConfig; +import org.apache.drill.common.logical.StoragePluginConfig; +import org.apache.drill.exec.ops.FragmentContext; +import org.apache.drill.exec.proto.UserBitShared.CoreOperatorType; +import org.apache.drill.exec.server.DrillbitContext; +import org.apache.drill.exec.store.RecordReader; +import org.apache.drill.exec.store.RecordWriter; +import org.apache.drill.exec.store.dfs.DrillFileSystem; +import org.apache.drill.exec.store.dfs.FormatMatcher; +import org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin; +import org.apache.drill.exec.store.dfs.easy.EasyWriter; +import org.apache.drill.exec.store.dfs.easy.FileWork; +import org.apache.drill.exec.store.msgpack.MsgpackFormatPlugin.MsgpackFormatConfig; +import org.apache.drill.shaded.guava.com.google.common.collect.ImmutableList; +import org.apache.hadoop.conf.Configuration; + +import com.fasterxml.jackson.annotation.JsonInclude; +import com.fasterxml.jackson.annotation.JsonTypeName; + +public class MsgpackFormatPlugin extends EasyFormatPlugin<MsgpackFormatConfig> { + + private static final boolean IS_COMPRESSIBLE = true; + public static final String DEFAULT_NAME = "msgpack"; + + public MsgpackFormatPlugin(String name, DrillbitContext context, Configuration fsConf, + StoragePluginConfig storageConfig) { + this(name, context, fsConf, storageConfig, new MsgpackFormatConfig()); + } + + public MsgpackFormatPlugin(String name, DrillbitContext context, Configuration fsConf, StoragePluginConfig config, + MsgpackFormatConfig formatPluginConfig) { + super(name, context, fsConf, config, formatPluginConfig, true, false, false, IS_COMPRESSIBLE, + formatPluginConfig.getExtensions(), DEFAULT_NAME); + } + + @Override + public FormatMatcher getMatcher() { + return super.getMatcher(); + } + + @Override + public RecordReader getRecordReader(FragmentContext context, DrillFileSystem dfs, FileWork fileWork, + List<SchemaPath> columns, String userName) { + return new MsgpackRecordReader(getConfig(), context, fileWork.getPath(), dfs, columns); + } + + @Override + public RecordWriter getRecordWriter(FragmentContext context, EasyWriter writer) throws IOException { + throw new UnsupportedOperationException(); + } + + @JsonTypeName("msgpack") + public static class MsgpackFormatConfig implements FormatPluginConfig { + + public List<String> extensions = ImmutableList.of("mp"); + private boolean readBinaryAsString = false; + private boolean lenient = true; + private boolean printToConsole = true; + private boolean learnSchema = true; + private boolean useSchema = true; + private static final List<String> DEFAULT_EXTS = ImmutableList.of("mp"); + + @JsonInclude(JsonInclude.Include.NON_DEFAULT) + public List<String> getExtensions() { + if (extensions == null) { + // when loading an old JSONFormatConfig that doesn't contain an + // "extensions" + // attribute + return DEFAULT_EXTS; + } + return extensions; + } + + @JsonInclude(JsonInclude.Include.ALWAYS) + public boolean isReadBinaryAsString() { + return readBinaryAsString; + } + + @JsonInclude(JsonInclude.Include.ALWAYS) + public boolean isLenient() { + return lenient; + } + + @JsonInclude(JsonInclude.Include.ALWAYS) + public boolean isPrintToConsole() { + return printToConsole; + } + + @JsonInclude(JsonInclude.Include.ALWAYS) + public boolean isLearnSchema() { + return learnSchema; + } + + @JsonInclude(JsonInclude.Include.ALWAYS) + public boolean isUseSchema() { + return useSchema; + } + + public void setUseSchema(boolean useSchema) { + this.useSchema = useSchema; + } + + public void setLearnSchema(boolean learnSchema) { + this.learnSchema = learnSchema; + } + + public void setExtensions(List<String> extensions) { + this.extensions = extensions; + } + + public void setLenient(boolean lenient) { + this.lenient = lenient; + } + + public void setReadBinaryAsString(boolean readBinaryAsString) { + this.readBinaryAsString = readBinaryAsString; + } + + public void setPrintToConsole(boolean printToConsole) { + this.printToConsole = printToConsole; + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime * result + ((extensions == null) ? 0 : extensions.hashCode()); + result = prime * result + (learnSchema ? 1231 : 1237); + result = prime * result + (printToConsole ? 1231 : 1237); + result = prime * result + (lenient ? 1231 : 1237); + result = prime * result + (readBinaryAsString ? 1231 : 1237); + result = prime * result + (useSchema ? 1231 : 1237); + return result; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { Review comment: See comment above for the terse way to do this. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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