Author: fhanik
Date: Thu Jun 29 01:33:29 2006
New Revision: 417959
URL: http://svn.apache.org/viewvc?rev=417959&view=rev
Log:
Added Member.getCommand, so that we don't have to piggyback on application
payload to transfer internal tribes commands
Modified:
tomcat/container/tc5.5.x/modules/groupcom/VERSION
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/Member.java
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/group/interceptors/TcpFailureDetector.java
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/McastServiceImpl.java
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/MemberImpl.java
Modified: tomcat/container/tc5.5.x/modules/groupcom/VERSION
URL:
http://svn.apache.org/viewvc/tomcat/container/tc5.5.x/modules/groupcom/VERSION?rev=417959&r1=417958&r2=417959&view=diff
==============================================================================
--- tomcat/container/tc5.5.x/modules/groupcom/VERSION (original)
+++ tomcat/container/tc5.5.x/modules/groupcom/VERSION Thu Jun 29 01:33:29 2006
@@ -1,3 +1,5 @@
+0.9.3.3
+ - Added Member.getCommand, to separate out internal tribes logic from
application payload
0.9.3.2
- MemberImpl.toString has a limit on the size it prints out
0.9.3.1
Modified:
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/Member.java
URL:
http://svn.apache.org/viewvc/tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/Member.java?rev=417959&r1=417958&r2=417959&view=diff
==============================================================================
---
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/Member.java
(original)
+++
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/Member.java
Thu Jun 29 01:33:29 2006
@@ -95,4 +95,9 @@
*/
public byte[] getPayload();
+ /**
+ * returns the command associated with this member
+ * @return byte[]
+ */
+ public byte[] getCommand();
}
Modified:
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/group/interceptors/TcpFailureDetector.java
URL:
http://svn.apache.org/viewvc/tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/group/interceptors/TcpFailureDetector.java?rev=417959&r1=417958&r2=417959&view=diff
==============================================================================
---
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/group/interceptors/TcpFailureDetector.java
(original)
+++
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/group/interceptors/TcpFailureDetector.java
Thu Jun 29 01:33:29 2006
@@ -135,7 +135,7 @@
public void memberDisappeared(Member member) {
if ( membership == null ) setupMembership();
boolean notify = false;
- boolean shutdown =
Arrays.equals(member.getPayload(),Member.SHUTDOWN_PAYLOAD);
+ boolean shutdown =
Arrays.equals(member.getCommand(),Member.SHUTDOWN_PAYLOAD);
if ( !shutdown ) log.info("Received memberDisappeared["+member+"]
message. Will verify.");
synchronized (membership) {
//check to see if the member really is gone
@@ -245,7 +245,7 @@
long readTimeout, long conTimeout,
int optionFlag) {
//could be a shutdown notification
- if ( Arrays.equals(mbr.getPayload(),Member.SHUTDOWN_PAYLOAD) ) return
false;
+ if ( Arrays.equals(mbr.getCommand(),Member.SHUTDOWN_PAYLOAD) ) return
false;
Socket socket = new Socket();
try {
Modified:
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/McastServiceImpl.java
URL:
http://svn.apache.org/viewvc/tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/McastServiceImpl.java?rev=417959&r1=417958&r2=417959&view=diff
==============================================================================
---
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/McastServiceImpl.java
(original)
+++
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/McastServiceImpl.java
Thu Jun 29 01:33:29 2006
@@ -255,12 +255,10 @@
//we're shutting down, send a shutdown message and close the socket
if ( startLevel == 0 ) {
//send a stop message
- byte[] payload = member.getPayload();
- member.setPayload(Member.SHUTDOWN_PAYLOAD);
+ member.setCommand(Member.SHUTDOWN_PAYLOAD);
member.getData(true, true);
send(false);
//restore payload
- member.setPayload(payload);
member.getData(true, true);
//leave mcast group
try {socket.leaveGroup(address);}catch ( Exception ignore){}
@@ -282,7 +280,7 @@
if (log.isDebugEnabled())
log.debug("Mcast receive ping from member " + m);
Thread t = null;
- if (Arrays.equals(m.getPayload(), Member.SHUTDOWN_PAYLOAD)) {
+ if (Arrays.equals(m.getCommand(), Member.SHUTDOWN_PAYLOAD)) {
if (log.isDebugEnabled()) log.debug("Member has shutdown:"
+ m);
membership.removeMember(m);
t = new Thread() {
Modified:
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/MemberImpl.java
URL:
http://svn.apache.org/viewvc/tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/MemberImpl.java?rev=417959&r1=417958&r2=417959&view=diff
==============================================================================
---
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/MemberImpl.java
(original)
+++
tomcat/container/tc5.5.x/modules/groupcom/src/share/org/apache/catalina/tribes/membership/MemberImpl.java
Thu Jun 29 01:33:29 2006
@@ -1,433 +1,462 @@
-/*
- * Copyright 1999,2004-2005 The Apache Software Foundation.
- *
- * Licensed 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.catalina.tribes.membership;
-
-import java.io.IOException;
-import java.io.ObjectInput;
-import java.io.ObjectOutput;
-import java.util.Arrays;
-
-import org.apache.catalina.tribes.Member;
-import org.apache.catalina.tribes.io.XByteBuffer;
-import org.apache.catalina.tribes.transport.SenderState;
-
-/**
- * A <b>membership</b> implementation using simple multicast.
- * This is the representation of a multicast member.
- * Carries the host, and port of the this or other cluster nodes.
- *
- * @author Filip Hanik
- * @version $Revision: 304032 $, $Date: 2005-07-27 10:11:55 -0500 (Wed, 27 Jul
2005) $
- */
-public class MemberImpl implements Member, java.io.Externalizable {
-
- /**
- * Public properties specific to this implementation
- */
- public static final transient String TCP_LISTEN_PORT = "tcpListenPort";
- public static final transient String TCP_LISTEN_HOST = "tcpListenHost";
- public static final transient String MEMBER_NAME = "memberName";
-
- /**
- * The listen host for this member
- */
- protected byte[] host;
- protected transient String hostname;
- /**
- * The tcp listen port for this member
- */
- protected int port;
-
- /**
- * Counter for how many broadcast messages have been sent from this member
- */
- protected int msgCount = 0;
- /**
- * The number of milliseconds since this members was
- * created, is kept track of using the start time
- */
- protected long memberAliveTime = 0;
-
- /**
- * For the local member only
- */
- protected transient long serviceStartTime;
-
- /**
- * To avoid serialization over and over again, once the local dataPkg
- * has been set, we use that to transmit data
- */
- protected transient byte[] dataPkg = null;
-
- /**
- * Unique session Id for this member
- */
- protected byte[] uniqueId = new byte[16];
-
- /**
- * Custom payload that an app framework can broadcast
- * Also used to transport stop command.
- */
- protected byte[] payload = new byte[0];
-
- /**
- * Empty constructor for serialization
- */
- public MemberImpl() {
-
- }
-
- /**
- * Construct a new member object
- * @param name - the name of this member, cluster unique
- * @param domain - the cluster domain name of this member
- * @param host - the tcp listen host
- * @param port - the tcp listen port
- */
- public MemberImpl(String host,
- int port,
- long aliveTime) throws IOException {
- setHostname(host);
- this.port = port;
- this.memberAliveTime=aliveTime;
- }
-
- public MemberImpl(String host,
- int port,
- long aliveTime,
- byte[] payload) throws IOException {
- this(host,port,aliveTime);
- setPayload(payload);
- }
-
- public boolean isReady() {
- return SenderState.getSenderState(this).isReady();
- }
- public boolean isSuspect() {
- return SenderState.getSenderState(this).isSuspect();
- }
- public boolean isFailing() {
- return SenderState.getSenderState(this).isFailing();
- }
-
- /**
- * Increment the message count.
- */
- protected void inc() {
- msgCount++;
- }
-
- /**
- * Create a data package to send over the wire representing this member.
- * This is faster than serialization.
- * @return - the bytes for this member deserialized
- * @throws Exception
- */
- public byte[] getData() {
- return getData(true);
- }
- /**
- * Highly optimized version of serializing a member into a byte array
- * Returns a cached byte[] reference, do not modify this data
- * @param getalive boolean
- * @return byte[]
- */
- public byte[] getData(boolean getalive) {
- return getData(getalive,false);
- }
-
-
- public int getDataLength() {
- return 8+4+1+host.length+16+4+payload.length;
- }
-
- /**
- *
- * @param getalive boolean - calculate memberAlive time
- * @param reset boolean - reset the cached data package, and create a new
one
- * @return byte[]
- */
- public byte[] getData(boolean getalive, boolean reset) {
- if ( reset ) dataPkg = null;
- //look in cache first
- if ( dataPkg!=null ) {
- if ( getalive ) {
- //you'd be surprised, but System.currentTimeMillis
- //shows up on the profiler
- long alive=System.currentTimeMillis()-getServiceStartTime();
- XByteBuffer.toBytes( (long) alive, dataPkg, 0);
- }
- return dataPkg;
- }
-
- //package looks like
- //alive - 8 bytes
- //port - 4 bytes
- //host length - 1 byte
- //host - hl bytes
- //dlen - 4 bytes
- //domain - dlen bytes
- //uniqueId - 16 bytes
- //payload length - 4 bytes
- //payload plen bytes
- byte[] addr = host;
- long alive=System.currentTimeMillis()-getServiceStartTime();
- byte hl = (byte)addr.length;
- byte[] data = new byte[getDataLength()];
- int pos = 0;
- //alive data
- XByteBuffer.toBytes((long)alive,data,0);
- pos += 8;
- //port
- XByteBuffer.toBytes(port,data,pos);
- pos += 4;
- //host length
- data[pos++] = hl;
- //host
- System.arraycopy(addr,0,data,pos,addr.length);
- pos+=addr.length;
- //unique Id
- System.arraycopy(uniqueId,0,data,pos,uniqueId.length);
- pos+=uniqueId.length;
- //payload
- XByteBuffer.toBytes(payload.length,data,pos);
- pos+=4;
- System.arraycopy(payload,0,data,pos,payload.length);
- pos+=payload.length;
-
- //create local data
- dataPkg = data;
- return data;
- }
- /**
- * Deserializes a member from data sent over the wire
- * @param data - the bytes received
- * @return a member object.
- */
- public static MemberImpl getMember(byte[] data, MemberImpl member) {
- //package looks like
- //alive - 8 bytes
- //port - 4 bytes
- //host length - 1 byte
- //host - hl bytes
- //uniqueId - 16 bytes
- //payload length - 4bytes
- //payload - pl bytes
- int pos = 0;
-
- byte[] alived = new byte[8];
- System.arraycopy(data, pos, alived, 0, 8);
- pos+=8;
- byte[] portd = new byte[4];
- System.arraycopy(data, pos, portd, 0, 4);
- pos+=4;
-
- byte hl = data[pos++];
- byte[] addr = new byte[hl];
- System.arraycopy(data, pos, addr, 0, hl);
- pos+=hl;
-
- byte[] uniqueId = new byte[16];
- System.arraycopy(data, pos, uniqueId, 0, 16);
- pos+=16;
-
- int pl = XByteBuffer.toInt(data,pos);
- pos+=4;
-
- byte[] payload = new byte[pl];
- System.arraycopy(data, pos, payload, 0, payload.length);
- pos+=payload.length;
-
- member.setHost(addr);
- member.setPort(XByteBuffer.toInt(portd, 0));
- member.setMemberAliveTime(XByteBuffer.toLong(alived, 0));
- member.setUniqueId(uniqueId);
- member.payload = payload;
-
- member.dataPkg = new byte[data.length];
- System.arraycopy(data,0,member.dataPkg,0,data.length);
-
- return member;
- }
-
- public static MemberImpl getMember(byte[] data) {
- return getMember(data,new MemberImpl());
- }
-
- /**
- * Return the name of this object
- * @return a unique name to the cluster
- */
- public String getName() {
- return "tcp://"+getHostname()+":"+getPort();
- }
-
- /**
- * Return the listen port of this member
- * @return - tcp listen port
- */
- public int getPort() {
- return this.port;
- }
-
- /**
- * Return the TCP listen host for this member
- * @return IP address or host name
- */
- public byte[] getHost() {
- return host;
- }
-
- public String getHostname() {
- if ( this.hostname != null ) return hostname;
- else {
- try {
- this.hostname =
java.net.InetAddress.getByAddress(host).getHostName();
- return this.hostname;
- }catch ( IOException x ) {
- throw new RuntimeException("Unable to parse hostname.",x);
- }
- }
- }
-
- /**
- * Contains information on how long this member has been online.
- * The result is the number of milli seconds this member has been
- * broadcasting its membership to the cluster.
- * @return nr of milliseconds since this member started.
- */
- public long getMemberAliveTime() {
- return memberAliveTime;
- }
-
- public long getServiceStartTime() {
- return serviceStartTime;
- }
-
- public byte[] getUniqueId() {
- return uniqueId;
- }
-
- public byte[] getPayload() {
- return payload;
- }
-
- public void setMemberAliveTime(long time) {
- memberAliveTime=time;
- }
-
-
-
- /**
- * String representation of this object
- */
- public String toString() {
- StringBuffer buf = new
StringBuffer("org.apache.catalina.tribes.membership.MemberImpl[");
- buf.append(getName()).append(",");
- buf.append(getHostname()).append(",");
- buf.append(port).append(", alive=");
- buf.append(memberAliveTime).append(",");
- buf.append("id=").append(bToS(this.uniqueId)).append(", ");
- buf.append("payload=").append(bToS(this.payload,5)).append(", ");
- buf.append("]");
- return buf.toString();
- }
- public static String bToS(byte[] data) {
- return bToS(data,data.length);
- }
- public static String bToS(byte[] data, int max) {
- StringBuffer buf = new StringBuffer(4*16);
- buf.append("{");
- for (int i=0; data!=null && i<data.length; i++ ) {
- buf.append(String.valueOf(data[i])).append(" ");
- if ( i==max ) {
- buf.append("...");
- break;
- }
- }
- buf.append("}");
- return buf.toString();
- }
-
- /**
- * @see java.lang.Object#hashCode()
- * @return The hash code
- */
- public int hashCode() {
- return getHost()[0]+getHost()[1]+getHost()[2]+getHost()[3];
- }
-
- /**
- * Returns true if the param o is a McastMember with the same name
- * @param o
- */
- public boolean equals(Object o) {
- if ( o instanceof MemberImpl ) {
- return Arrays.equals(this.getHost(),((MemberImpl)o).getHost()) &&
- this.getPort() == ((MemberImpl)o).getPort() &&
-
Arrays.equals(this.getUniqueId(),((MemberImpl)o).getUniqueId());
- }
- else
- return false;
- }
-
- public void setHost(byte[] host) {
- this.host = host;
- }
-
- public void setHostname(String host) throws IOException {
- hostname = host;
- this.host = java.net.InetAddress.getByName(host).getAddress();
- }
-
- public void setMsgCount(int msgCount) {
- this.msgCount = msgCount;
- }
-
- public void setPort(int port) {
- this.port = port;
- this.dataPkg = null;
- }
-
- public void setServiceStartTime(long serviceStartTime) {
- this.serviceStartTime = serviceStartTime;
- }
-
- public void setUniqueId(byte[] uniqueId) {
- this.uniqueId = uniqueId;
- }
-
- public void setPayload(byte[] payload) {
- this.payload = payload;
- getData(true,true);
- }
-
- public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
- int length = in.readInt();
- byte[] message = new byte[length];
- in.read(message);
- getMember(message,this);
-
- }
-
- public void writeExternal(ObjectOutput out) throws IOException {
- byte[] data = this.getData();
- out.writeInt(data.length);
- out.write(data);
- }
-
-}
+/*
+ * Copyright 1999,2004-2005 The Apache Software Foundation.
+ *
+ * Licensed 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.catalina.tribes.membership;
+
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.Arrays;
+
+import org.apache.catalina.tribes.Member;
+import org.apache.catalina.tribes.io.XByteBuffer;
+import org.apache.catalina.tribes.transport.SenderState;
+
+/**
+ * A <b>membership</b> implementation using simple multicast.
+ * This is the representation of a multicast member.
+ * Carries the host, and port of the this or other cluster nodes.
+ *
+ * @author Filip Hanik
+ * @version $Revision: 304032 $, $Date: 2005-07-27 10:11:55 -0500 (Wed, 27 Jul
2005) $
+ */
+public class MemberImpl implements Member, java.io.Externalizable {
+
+ /**
+ * Public properties specific to this implementation
+ */
+ public static final transient String TCP_LISTEN_PORT = "tcpListenPort";
+ public static final transient String TCP_LISTEN_HOST = "tcpListenHost";
+ public static final transient String MEMBER_NAME = "memberName";
+
+ /**
+ * The listen host for this member
+ */
+ protected byte[] host;
+ protected transient String hostname;
+ /**
+ * The tcp listen port for this member
+ */
+ protected int port;
+
+ /**
+ * Counter for how many broadcast messages have been sent from this member
+ */
+ protected int msgCount = 0;
+ /**
+ * The number of milliseconds since this members was
+ * created, is kept track of using the start time
+ */
+ protected long memberAliveTime = 0;
+
+ /**
+ * For the local member only
+ */
+ protected transient long serviceStartTime;
+
+ /**
+ * To avoid serialization over and over again, once the local dataPkg
+ * has been set, we use that to transmit data
+ */
+ protected transient byte[] dataPkg = null;
+
+ /**
+ * Unique session Id for this member
+ */
+ protected byte[] uniqueId = new byte[16];
+
+ /**
+ * Custom payload that an app framework can broadcast
+ * Also used to transport stop command.
+ */
+ protected byte[] payload = new byte[0];
+
+ /**
+ * Command, so that the custom payload doesn't have to be used
+ * This is for internal tribes use, such as SHUTDOWN_COMMAND
+ */
+ protected byte[] command = new byte[0];
+
+ /**
+ * Empty constructor for serialization
+ */
+ public MemberImpl() {
+
+ }
+
+ /**
+ * Construct a new member object
+ * @param name - the name of this member, cluster unique
+ * @param domain - the cluster domain name of this member
+ * @param host - the tcp listen host
+ * @param port - the tcp listen port
+ */
+ public MemberImpl(String host,
+ int port,
+ long aliveTime) throws IOException {
+ setHostname(host);
+ this.port = port;
+ this.memberAliveTime=aliveTime;
+ }
+
+ public MemberImpl(String host,
+ int port,
+ long aliveTime,
+ byte[] payload) throws IOException {
+ this(host,port,aliveTime);
+ setPayload(payload);
+ }
+
+ public boolean isReady() {
+ return SenderState.getSenderState(this).isReady();
+ }
+ public boolean isSuspect() {
+ return SenderState.getSenderState(this).isSuspect();
+ }
+ public boolean isFailing() {
+ return SenderState.getSenderState(this).isFailing();
+ }
+
+ /**
+ * Increment the message count.
+ */
+ protected void inc() {
+ msgCount++;
+ }
+
+ /**
+ * Create a data package to send over the wire representing this member.
+ * This is faster than serialization.
+ * @return - the bytes for this member deserialized
+ * @throws Exception
+ */
+ public byte[] getData() {
+ return getData(true);
+ }
+ /**
+ * Highly optimized version of serializing a member into a byte array
+ * Returns a cached byte[] reference, do not modify this data
+ * @param getalive boolean
+ * @return byte[]
+ */
+ public byte[] getData(boolean getalive) {
+ return getData(getalive,false);
+ }
+
+
+ public int getDataLength() {
+ return 8+4+1+host.length+4+command.length+16+4+payload.length;
+ }
+
+ /**
+ *
+ * @param getalive boolean - calculate memberAlive time
+ * @param reset boolean - reset the cached data package, and create a new
one
+ * @return byte[]
+ */
+ public byte[] getData(boolean getalive, boolean reset) {
+ if ( reset ) dataPkg = null;
+ //look in cache first
+ if ( dataPkg!=null ) {
+ if ( getalive ) {
+ //you'd be surprised, but System.currentTimeMillis
+ //shows up on the profiler
+ long alive=System.currentTimeMillis()-getServiceStartTime();
+ XByteBuffer.toBytes( (long) alive, dataPkg, 0);
+ }
+ return dataPkg;
+ }
+
+ //package looks like
+ //alive - 8 bytes
+ //port - 4 bytes
+ //host length - 1 byte
+ //host - hl bytes
+ //clen - 4 bytes
+ //command - clen bytes
+ //uniqueId - 16 bytes
+ //payload length - 4 bytes
+ //payload plen bytes
+ byte[] addr = host;
+ long alive=System.currentTimeMillis()-getServiceStartTime();
+ byte hl = (byte)addr.length;
+ byte[] data = new byte[getDataLength()];
+ int pos = 0;
+ //alive data
+ XByteBuffer.toBytes((long)alive,data,0);
+ pos += 8;
+ //port
+ XByteBuffer.toBytes(port,data,pos);
+ pos += 4;
+ //host length
+ data[pos++] = hl;
+ //host
+ System.arraycopy(addr,0,data,pos,addr.length);
+ pos+=addr.length;
+ //clen - 4 bytes
+ XByteBuffer.toBytes(command.length,data,pos);
+ pos+=4;
+ //command - clen bytes
+ System.arraycopy(command,0,data,pos,command.length);
+ pos+=command.length;
+ //unique Id
+ System.arraycopy(uniqueId,0,data,pos,uniqueId.length);
+ pos+=uniqueId.length;
+ //payload
+ XByteBuffer.toBytes(payload.length,data,pos);
+ pos+=4;
+ System.arraycopy(payload,0,data,pos,payload.length);
+ pos+=payload.length;
+
+ //create local data
+ dataPkg = data;
+ return data;
+ }
+ /**
+ * Deserializes a member from data sent over the wire
+ * @param data - the bytes received
+ * @return a member object.
+ */
+ public static MemberImpl getMember(byte[] data, MemberImpl member) {
+ //package looks like
+ //alive - 8 bytes
+ //port - 4 bytes
+ //host length - 1 byte
+ //host - hl bytes
+ //command length - 4 bytes
+ //command clen bytes
+ //uniqueId - 16 bytes
+ //payload length - 4bytes
+ //payload - pl bytes
+ int pos = 0;
+
+ byte[] alived = new byte[8];
+ System.arraycopy(data, pos, alived, 0, 8);
+ pos+=8;
+ byte[] portd = new byte[4];
+ System.arraycopy(data, pos, portd, 0, 4);
+ pos+=4;
+
+ byte hl = data[pos++];
+ byte[] addr = new byte[hl];
+ System.arraycopy(data, pos, addr, 0, hl);
+ pos+=hl;
+
+ int cl = XByteBuffer.toInt(data,pos);
+ pos+=4;
+
+ byte[] command = new byte[cl];
+ System.arraycopy(data, pos, command, 0, command.length);
+ pos+=command.length;
+
+ byte[] uniqueId = new byte[16];
+ System.arraycopy(data, pos, uniqueId, 0, 16);
+ pos+=16;
+
+ int pl = XByteBuffer.toInt(data,pos);
+ pos+=4;
+
+ byte[] payload = new byte[pl];
+ System.arraycopy(data, pos, payload, 0, payload.length);
+ pos+=payload.length;
+
+ member.setHost(addr);
+ member.setPort(XByteBuffer.toInt(portd, 0));
+ member.setMemberAliveTime(XByteBuffer.toLong(alived, 0));
+ member.setUniqueId(uniqueId);
+ member.payload = payload;
+
+ member.dataPkg = new byte[data.length];
+ System.arraycopy(data,0,member.dataPkg,0,data.length);
+
+ return member;
+ }
+
+ public static MemberImpl getMember(byte[] data) {
+ return getMember(data,new MemberImpl());
+ }
+
+ /**
+ * Return the name of this object
+ * @return a unique name to the cluster
+ */
+ public String getName() {
+ return "tcp://"+getHostname()+":"+getPort();
+ }
+
+ /**
+ * Return the listen port of this member
+ * @return - tcp listen port
+ */
+ public int getPort() {
+ return this.port;
+ }
+
+ /**
+ * Return the TCP listen host for this member
+ * @return IP address or host name
+ */
+ public byte[] getHost() {
+ return host;
+ }
+
+ public String getHostname() {
+ if ( this.hostname != null ) return hostname;
+ else {
+ try {
+ this.hostname =
java.net.InetAddress.getByAddress(host).getHostName();
+ return this.hostname;
+ }catch ( IOException x ) {
+ throw new RuntimeException("Unable to parse hostname.",x);
+ }
+ }
+ }
+
+ /**
+ * Contains information on how long this member has been online.
+ * The result is the number of milli seconds this member has been
+ * broadcasting its membership to the cluster.
+ * @return nr of milliseconds since this member started.
+ */
+ public long getMemberAliveTime() {
+ return memberAliveTime;
+ }
+
+ public long getServiceStartTime() {
+ return serviceStartTime;
+ }
+
+ public byte[] getUniqueId() {
+ return uniqueId;
+ }
+
+ public byte[] getPayload() {
+ return payload;
+ }
+
+ public byte[] getCommand() {
+ return command;
+ }
+
+ public void setMemberAliveTime(long time) {
+ memberAliveTime=time;
+ }
+
+
+
+ /**
+ * String representation of this object
+ */
+ public String toString() {
+ StringBuffer buf = new
StringBuffer("org.apache.catalina.tribes.membership.MemberImpl[");
+ buf.append(getName()).append(",");
+ buf.append(getHostname()).append(",");
+ buf.append(port).append(", alive=");
+ buf.append(memberAliveTime).append(",");
+ buf.append("id=").append(bToS(this.uniqueId)).append(", ");
+ buf.append("payload=").append(bToS(this.payload,5)).append(", ");
+ buf.append("]");
+ return buf.toString();
+ }
+ public static String bToS(byte[] data) {
+ return bToS(data,data.length);
+ }
+ public static String bToS(byte[] data, int max) {
+ StringBuffer buf = new StringBuffer(4*16);
+ buf.append("{");
+ for (int i=0; data!=null && i<data.length; i++ ) {
+ buf.append(String.valueOf(data[i])).append(" ");
+ if ( i==max ) {
+ buf.append("...");
+ break;
+ }
+ }
+ buf.append("}");
+ return buf.toString();
+ }
+
+ /**
+ * @see java.lang.Object#hashCode()
+ * @return The hash code
+ */
+ public int hashCode() {
+ return getHost()[0]+getHost()[1]+getHost()[2]+getHost()[3];
+ }
+
+ /**
+ * Returns true if the param o is a McastMember with the same name
+ * @param o
+ */
+ public boolean equals(Object o) {
+ if ( o instanceof MemberImpl ) {
+ return Arrays.equals(this.getHost(),((MemberImpl)o).getHost()) &&
+ this.getPort() == ((MemberImpl)o).getPort() &&
+
Arrays.equals(this.getUniqueId(),((MemberImpl)o).getUniqueId());
+ }
+ else
+ return false;
+ }
+
+ public void setHost(byte[] host) {
+ this.host = host;
+ }
+
+ public void setHostname(String host) throws IOException {
+ hostname = host;
+ this.host = java.net.InetAddress.getByName(host).getAddress();
+ }
+
+ public void setMsgCount(int msgCount) {
+ this.msgCount = msgCount;
+ }
+
+ public void setPort(int port) {
+ this.port = port;
+ this.dataPkg = null;
+ }
+
+ public void setServiceStartTime(long serviceStartTime) {
+ this.serviceStartTime = serviceStartTime;
+ }
+
+ public void setUniqueId(byte[] uniqueId) {
+ this.uniqueId = uniqueId;
+ }
+
+ public void setPayload(byte[] payload) {
+ this.payload = payload;
+ getData(true,true);
+ }
+
+ public void setCommand(byte[] command) {
+ this.command = command!=null?command:new byte[0];
+ }
+
+ public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
+ int length = in.readInt();
+ byte[] message = new byte[length];
+ in.read(message);
+ getMember(message,this);
+
+ }
+
+ public void writeExternal(ObjectOutput out) throws IOException {
+ byte[] data = this.getData();
+ out.writeInt(data.length);
+ out.write(data);
+ }
+
+}
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