| /* |
| * 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.geode.cache.query.cq.internal.ops; |
| |
| import org.apache.geode.InternalGemFireError; |
| import org.apache.geode.cache.client.ServerOperationException; |
| import org.apache.geode.cache.client.internal.AbstractOp; |
| import org.apache.geode.cache.client.internal.Connection; |
| import org.apache.geode.cache.client.internal.ConnectionStats; |
| import org.apache.geode.cache.client.internal.ExecutablePool; |
| import org.apache.geode.internal.Version; |
| import org.apache.geode.internal.cache.tier.MessageType; |
| import org.apache.geode.internal.cache.tier.sockets.ChunkedMessage; |
| import org.apache.geode.internal.cache.tier.sockets.Message; |
| import org.apache.geode.internal.cache.tier.sockets.Part; |
| import org.apache.geode.security.NotAuthorizedException; |
| |
| /** |
| * Creates a CQ on a server |
| * |
| * @since GemFire 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(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(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 org.apache.geode.SerializationException if serialization fails |
| */ |
| public CreateCQOpImpl(String cqName, String queryStr, int cqState, boolean isDurable, |
| byte regionDataPolicy) { |
| super(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); |
| } |
| |
| @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 org.apache.geode.SerializationException if serialization fails |
| */ |
| protected CreateCQOpImpl(int msgType, int numParts) { |
| super(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()); |
| } |
| } |
| } |