001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.processor;
018
019import org.apache.camel.AsyncCallback;
020import org.apache.camel.AsyncProcessor;
021import org.apache.camel.Exchange;
022import org.apache.camel.Traceable;
023import org.apache.camel.support.ServiceSupport;
024import org.apache.camel.util.AsyncProcessorHelper;
025import org.apache.camel.util.ObjectHelper;
026
027/**
028 * The processor which sets an {@link Exception} on the {@link Exchange}
029 */
030public class ThrowExceptionProcessor extends ServiceSupport implements AsyncProcessor, Traceable {
031    private final Exception exception;
032
033    public ThrowExceptionProcessor(Exception exception) {
034        ObjectHelper.notNull(exception, "exception", this);
035        this.exception = exception;
036    }
037
038    public void process(Exchange exchange) throws Exception {
039        AsyncProcessorHelper.process(this, exchange);
040    }
041
042    public boolean process(Exchange exchange, AsyncCallback callback) {
043        exchange.setException(exception);
044        callback.done(true);
045        return true;
046    }
047
048    public String getTraceLabel() {
049        return "throwException[" + exception.getClass().getSimpleName() + "]";
050    }
051
052    public String toString() {
053        return "ThrowException";
054    }
055
056    @Override
057    protected void doStart() throws Exception {
058        // noop
059    }
060
061    @Override
062    protected void doStop() throws Exception {
063        // noop
064    }
065}