core/camel-api/src/main/java/org/apache/camel/Processor.java

/*
 * 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;

/**
 * A <a href="http://camel.apache.org/processor.html">processor</a> is used to implement the
 * <a href="http://camel.apache.org/event-driven-consumer.html"> Event Driven Consumer</a>
 * and <a href="http://camel.apache.org/message-translator.html"> Message Translator</a>
 * patterns and to process message exchanges.
 * <p/>
 * Notice if you use a {@link Processor} in a Camel route, then make sure to write the {@link Processor}
 * in a thread-safe way, as the Camel routes can potentially be executed by concurrent threads, and therefore
 * multiple threads can call the same {@link Processor} instance.
 */
public interface Processor {

    /**
     * Processes the message exchange
     * 
     * @param exchange the message exchange
     * @throws Exception if an internal processing error has occurred.
     */
    void process(Exchange exchange) throws Exception;
}