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TIBCO ComputeDB store based off Pivotal GemFireXD
/*
* 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.internal.shared.Version;
import com.gemstone.gemfire.security.NotAuthorizedException;
import com.gemstone.gemfire.InternalGemFireError;
import com.gemstone.gemfire.cache.client.ServerOperationException;
/**
* Creates a CQ on a server
* @author darrel
* @since 5.7
*/
public class CreateCQOp {
/**
* Create a continuous query on the server using connections from the given pool
* to communicate with the server.
* @param pool the pool to use to communicate with the server.
* @param cqName name of the CQ to create
* @param queryStr string OQL statement to be executed
* @param cqState int cqState to be set.
* @param isDurable true if CQ is durable
* @param regionDataPolicy the data policy ordinal of the region
*/
public static Object execute(ExecutablePool pool, String cqName,
String queryStr, int cqState, boolean isDurable, byte regionDataPolicy)
{
AbstractOp op = new CreateCQOpImpl(pool.getLoggerI18n(), cqName, queryStr,
cqState, isDurable, regionDataPolicy);
return pool.executeOnQueuesAndReturnPrimaryResult(op);
}
/**
* Create a continuous query on the server using a specific connections from the given pool.
* @param pool the pool to use to communicate with the server.
* @param conn the actual connection to use
* @param cqName name of the CQ to create
* @param queryStr string OQL statement to be executed
* @param cqState int cqState to be set.
* @param isDurable true if CQ is durable
* @param regionDataPolicy the data policy ordinal of the region
*/
public static Object executeOn(ExecutablePool pool, Connection conn,
String cqName, String queryStr, int cqState, boolean isDurable,
byte regionDataPolicy)
{
AbstractOp op = new CreateCQOpImpl(pool.getLoggerI18n(), cqName, queryStr,
cqState, isDurable, regionDataPolicy);
return pool.executeOn(conn,op);
}
private CreateCQOp() {
// no instances allowed
}
/**
* Note both StopCQOpImpl and CloseCQOpImpl extend this class
*/
protected static class CreateCQOpImpl extends AbstractOp {
/**
* @throws com.gemstone.gemfire.SerializationException if serialization fails
*/
public CreateCQOpImpl(LogWriterI18n lw, String cqName, String queryStr,
int cqState, boolean isDurable, byte regionDataPolicy) {
super(lw, MessageType.EXECUTECQ_MSG_TYPE, 5);
getMessage().addStringPart(cqName);
getMessage().addStringPart(queryStr);
getMessage().addIntPart(cqState);
{
byte durableByte = (byte)(isDurable ? 0x01 : 0x00);
getMessage().addBytesPart(new byte[] {durableByte});
}
getMessage().addBytesPart(new byte[] {regionDataPolicy});
}
@Override
protected Message createResponseMessage() {
return new ChunkedMessage(1, Version.CURRENT_GFE);
}
@Override
protected Object processResponse(Message m) throws Exception {
ChunkedMessage msg = (ChunkedMessage)m;
msg.readHeader();
int msgType = msg.getMessageType();
msg.receiveChunk();
if (msgType == MessageType.REPLY) {
return Boolean.TRUE;
} else {
if (msgType == MessageType.EXCEPTION) {
Part part = msg.getPart(0);
String s = "While performing a remote " + getOpName();
throw new ServerOperationException(s, (Throwable) part.getObject());
} else if (isErrorResponse(msgType)) {
Part part = msg.getPart(0);
// Dan Smith- a hack, but I don't want to change the protocol right
// now. We need to throw a security exception so that the exception
// will be propagated up properly. Ideally, this exception would be
// contained in the message..
String errorMessage = part.getString();
if(errorMessage.indexOf("Not authorized") >= 0) {
throw new NotAuthorizedException(errorMessage);
}
throw new ServerOperationException(errorMessage);
} else {
throw new InternalGemFireError("Unexpected message type "
+ MessageType.getString(msgType));
}
}
}
/**
* This constructor is for our subclasses
* @throws com.gemstone.gemfire.SerializationException if serialization fails
*/
protected CreateCQOpImpl(LogWriterI18n lw, int msgType, int numParts) {
super(lw, msgType, numParts);
}
protected String getOpName() {
return "createCQ";
}
@Override
protected boolean isErrorResponse(int msgType) {
return msgType == MessageType.CQDATAERROR_MSG_TYPE
|| msgType == MessageType.CQ_EXCEPTION_TYPE;
}
@Override
protected long startAttempt(ConnectionStats stats) {
return stats.startCreateCQ();
}
@Override
protected void endSendAttempt(ConnectionStats stats, long start) {
stats.endCreateCQSend(start, hasFailed());
}
@Override
protected void endAttempt(ConnectionStats stats, long start) {
stats.endCreateCQ(start, hasTimedOut(), hasFailed());
}
}
}