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The Core Camel Java DSL based router
/**
* 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.camel.component.file.strategy;
import org.apache.camel.Exchange;
import org.apache.camel.component.file.GenericFile;
import org.apache.camel.component.file.GenericFileEndpoint;
import org.apache.camel.component.file.GenericFileOperations;
public class GenericFileRenameProcessStrategy extends GenericFileProcessStrategySupport {
private GenericFileRenamer beginRenamer;
private GenericFileRenamer failureRenamer;
private GenericFileRenamer commitRenamer;
public GenericFileRenameProcessStrategy() {
}
@Override
public boolean begin(GenericFileOperations operations, GenericFileEndpoint endpoint, Exchange exchange, GenericFile file) throws Exception {
// must invoke super
boolean result = super.begin(operations, endpoint, exchange, file);
if (!result) {
return false;
}
// okay we got the file then execute the begin renamer
if (beginRenamer != null) {
GenericFile newName = beginRenamer.renameFile(exchange, file);
GenericFile to = renameFile(operations, file, newName);
if (to != null) {
to.bindToExchange(exchange);
}
}
return true;
}
@Override
public void rollback(GenericFileOperations operations, GenericFileEndpoint endpoint, Exchange exchange, GenericFile file) throws Exception {
try {
operations.releaseRetreivedFileResources(exchange);
if (failureRenamer != null) {
// create a copy and bind the file to the exchange to be used by the renamer to evaluate the file name
Exchange copy = exchange.copy();
file.bindToExchange(copy);
// must preserve message id
copy.getIn().setMessageId(exchange.getIn().getMessageId());
copy.setExchangeId(exchange.getExchangeId());
GenericFile newName = failureRenamer.renameFile(copy, file);
renameFile(operations, file, newName);
}
} finally {
if (exclusiveReadLockStrategy != null) {
exclusiveReadLockStrategy.releaseExclusiveReadLockOnRollback(operations, file, exchange);
}
deleteLocalWorkFile(exchange);
}
}
@Override
public void commit(GenericFileOperations operations, GenericFileEndpoint endpoint, Exchange exchange, GenericFile file) throws Exception {
try {
if (commitRenamer != null) {
// create a copy and bind the file to the exchange to be used by the renamer to evaluate the file name
Exchange copy = exchange.copy();
file.bindToExchange(copy);
// must preserve message id
copy.getIn().setMessageId(exchange.getIn().getMessageId());
copy.setExchangeId(exchange.getExchangeId());
GenericFile newName = commitRenamer.renameFile(copy, file);
renameFile(operations, file, newName);
}
} finally {
// must invoke super
super.commit(operations, endpoint, exchange, file);
}
}
public GenericFileRenamer getBeginRenamer() {
return beginRenamer;
}
public void setBeginRenamer(GenericFileRenamer beginRenamer) {
this.beginRenamer = beginRenamer;
}
public GenericFileRenamer getCommitRenamer() {
return commitRenamer;
}
public void setCommitRenamer(GenericFileRenamer commitRenamer) {
this.commitRenamer = commitRenamer;
}
public GenericFileRenamer getFailureRenamer() {
return failureRenamer;
}
public void setFailureRenamer(GenericFileRenamer failureRenamer) {
this.failureRenamer = failureRenamer;
}
}