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.Message; 023import org.apache.camel.Traceable; 024import org.apache.camel.spi.IdAware; 025import org.apache.camel.support.ServiceSupport; 026import org.apache.camel.util.AsyncProcessorHelper; 027 028/** 029 * A processor which removes one ore more headers from the IN or OUT message 030 */ 031public class RemoveHeadersProcessor extends ServiceSupport implements AsyncProcessor, Traceable, IdAware { 032 private String id; 033 private final String pattern; 034 private final String[] excludePattern; 035 036 public RemoveHeadersProcessor(String pattern, String[] excludePattern) { 037 this.pattern = pattern; 038 this.excludePattern = excludePattern; 039 } 040 041 public void process(Exchange exchange) throws Exception { 042 AsyncProcessorHelper.process(this, exchange); 043 } 044 045 @Override 046 public boolean process(Exchange exchange, AsyncCallback callback) { 047 try { 048 Message message = exchange.hasOut() ? exchange.getOut() : exchange.getIn(); 049 message.removeHeaders(pattern, excludePattern); 050 } catch (Exception e) { 051 exchange.setException(e); 052 } 053 054 callback.done(true); 055 return true; 056 } 057 058 @Override 059 public String toString() { 060 return "RemoveHeaders(" + pattern + ")"; 061 } 062 063 public String getTraceLabel() { 064 return "removeHeaders[" + pattern + "]"; 065 } 066 067 public String getId() { 068 return id; 069 } 070 071 public void setId(String id) { 072 this.id = id; 073 } 074 075 public String getPattern() { 076 return pattern; 077 } 078 079 public String[] getExcludePattern() { 080 return excludePattern; 081 } 082 083 @Override 084 protected void doStart() throws Exception { 085 // noop 086 } 087 088 @Override 089 protected void doStop() throws Exception { 090 // noop 091 } 092}