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/*
* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* 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. See accompanying
* LICENSE file.
*/
package com.gemstone.gemfire.cache.client.internal;
import com.gemstone.gemfire.i18n.LogWriterI18n;
import com.gemstone.gemfire.internal.cache.tier.MessageType;
import com.gemstone.gemfire.internal.cache.tier.sockets.Message;
import com.gemstone.gemfire.internal.cache.tier.sockets.ChunkedMessage;
import com.gemstone.gemfire.internal.cache.tier.sockets.Part;
import com.gemstone.gemfire.InternalGemFireError;
import com.gemstone.gemfire.internal.cache.tier.InterestType;
import com.gemstone.gemfire.internal.shared.Version;
import com.gemstone.gemfire.cache.InterestResultPolicy;
import com.gemstone.gemfire.cache.RegionDestroyedException;
import com.gemstone.gemfire.cache.client.ServerOperationException;
import com.gemstone.gemfire.distributed.internal.ServerLocation;
import java.util.ArrayList;
import java.util.List;
/**
* Does a region registerInterest on a server
* @author darrel
* @since 5.7
*/
public class RegisterInterestOp {
/**
* Does a region registerInterest on a server using connections from the given pool
* to communicate with the server.
* @param pool the pool to use to communicate with the server.
* @param region the name of the region to do the registerInterest on
* @param key describes what we are interested in
* @param interestType the {@link InterestType} for this registration
* @param policy the interest result policy for this registration
* @param isDurable true if this registration is durable
* @param regionDataPolicy the data policy ordinal of the region
* @return list of keys
*/
public static List execute(ExecutablePool pool,
String region,
Object key,
int interestType,
InterestResultPolicy policy,
boolean isDurable,
boolean receiveUpdatesAsInvalidates,
byte regionDataPolicy)
{
AbstractOp op = new RegisterInterestOpImpl(pool.getLoggerI18n(), region,
key, interestType, policy, isDurable, receiveUpdatesAsInvalidates, regionDataPolicy);
return (List) pool.executeOnQueuesAndReturnPrimaryResult(op);
}
/**
* Does a region registerInterest on a server using connections from the given pool
* to communicate with the given server location.
* @param sl the server to do the register interest on.
* @param pool the pool to use to communicate with the server.
* @param region the name of the region to do the registerInterest on
* @param key describes what we are interested in
* @param interestType the {@link InterestType} for this registration
* @param policy the interest result policy for this registration
* @param isDurable true if this registration is durable
* @param regionDataPolicy the data policy ordinal of the region
* @return list of keys
*/
public static List executeOn(ServerLocation sl,
ExecutablePool pool,
String region,
Object key,
int interestType,
InterestResultPolicy policy,
boolean isDurable,
boolean receiveUpdatesAsInvalidates,
byte regionDataPolicy)
{
AbstractOp op = new RegisterInterestOpImpl(pool.getLoggerI18n(), region,
key, interestType, policy, isDurable, receiveUpdatesAsInvalidates, regionDataPolicy);
return (List) pool.executeOn(sl, op);
}
/**
* Does a region registerInterest on a server using connections from the given pool
* to communicate with the given server location.
* @param conn the connection to do the register interest on.
* @param pool the pool to use to communicate with the server.
* @param region the name of the region to do the registerInterest on
* @param key describes what we are interested in
* @param interestType the {@link InterestType} for this registration
* @param policy the interest result policy for this registration
* @param isDurable true if this registration is durable
* @param regionDataPolicy the data policy ordinal of the region
* @return list of keys
*/
public static List executeOn(Connection conn,
ExecutablePool pool,
String region,
Object key,
int interestType,
InterestResultPolicy policy,
boolean isDurable,
boolean receiveUpdatesAsInvalidates,
byte regionDataPolicy)
{
AbstractOp op = new RegisterInterestOpImpl(pool.getLoggerI18n(), region,
key, interestType, policy, isDurable, receiveUpdatesAsInvalidates, regionDataPolicy);
return (List) pool.executeOn(conn, op);
}
private RegisterInterestOp() {
// no instances allowed
}
protected static class RegisterInterestOpImpl extends AbstractOp {
/**
* @throws com.gemstone.gemfire.SerializationException if serialization fails
*/
public RegisterInterestOpImpl(LogWriterI18n lw,
String region,
Object key,
int interestType,
InterestResultPolicy policy,
boolean isDurable,
boolean receiveUpdatesAsInvalidates,
byte regionDataPolicy) {
super(lw, MessageType.REGISTER_INTEREST, 7);
getMessage().addStringPart(region);
getMessage().addIntPart(interestType);
getMessage().addObjPart(policy);
{
byte durableByte = (byte)(isDurable ? 0x01 : 0x00);
getMessage().addBytesPart(new byte[] {durableByte});
}
getMessage().addStringOrObjPart(key);
byte notifyByte = (byte)(receiveUpdatesAsInvalidates ? 0x01 : 0x00);
getMessage().addBytesPart(new byte[] {notifyByte});
getMessage().addBytesPart(new byte[] {regionDataPolicy});
}
/**
* This constructor is used by our subclass CreateCQWithIROpImpl
* @throws com.gemstone.gemfire.SerializationException if serialization fails
*/
protected RegisterInterestOpImpl(LogWriterI18n lw, int msgType, int numParts) {
super(lw, msgType, numParts);
}
@Override
protected Message createResponseMessage() {
return new ChunkedMessage(1, Version.CURRENT);
}
@Override
protected Object processResponse(Message m) throws Exception {
ChunkedMessage msg = (ChunkedMessage)m;
msg.readHeader();
switch (msg.getMessageType()) {
case MessageType.RESPONSE_FROM_PRIMARY: {
ArrayList serverKeys = new ArrayList();
// Process the chunks
do {
// Read the chunk
msg.receiveChunk();
// Deserialize the result
Part part = msg.getPart(0);
Object partObj = part.getObject();
if (partObj instanceof Throwable) {
String s = "While performing a remote " + getOpName();
throw new ServerOperationException(s, (Throwable)partObj);
// Get the exception toString part.
// This was added for c++ thin client and not used in java
//Part exceptionToStringPart = msg.getPart(1);
}
else {
// Add the result to the list of results
serverKeys.add(partObj);
}
} while (!msg.isLastChunk());
return serverKeys;
}
case MessageType.RESPONSE_FROM_SECONDARY:
// Read the chunk
msg.receiveChunk();
return null;
case MessageType.EXCEPTION:
// Read the chunk
msg.receiveChunk();
// Deserialize the result
Part part = msg.getPart(0);
// Get the exception toString part.
// This was added for c++ thin client and not used in java
//Part exceptionToStringPart = msg.getPart(1);
Object obj = part.getObject();
{
String s = this + ": While performing a remote " + getOpName();
throw new ServerOperationException(s, (Throwable) obj);
}
case MessageType.REGISTER_INTEREST_DATA_ERROR:
// Read the chunk
msg.receiveChunk();
// Deserialize the result
String errorMessage = msg.getPart(0).getString();
String s = this + ": While performing a remote " + getOpName() + ": ";
throw new ServerOperationException(s + errorMessage);
default:
throw new InternalGemFireError("Unknown message type "
+ msg.getMessageType());
}
}
protected String getOpName() {
return "registerInterest";
}
@Override
protected boolean isErrorResponse(int msgType) {
return msgType == MessageType.REGISTER_INTEREST_DATA_ERROR;
}
@Override
protected long startAttempt(ConnectionStats stats) {
return stats.startRegisterInterest();
}
@Override
protected void endSendAttempt(ConnectionStats stats, long start) {
stats.endRegisterInterestSend(start, hasFailed());
}
@Override
protected void endAttempt(ConnectionStats stats, long start) {
stats.endRegisterInterest(start, hasTimedOut(), hasFailed());
}
}
}
