/**
* Copyright © 2012 Alcatel-Lucent.
*
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
* Licensed 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 com.alu.e3.gateway.common.camel.processor;
import java.util.ArrayList;
import java.util.List;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.springframework.beans.factory.annotation.Autowired;
import com.alu.e3.gateway.common.camel.exception.GatewayException;
import com.alu.e3.gateway.common.camel.exception.GatewayExceptionCode;
public class HttpMethodProcessor implements Processor {
private List<String> allowedHttpMethods;
@Autowired
public void setAllowedHttpMethods(String csv){
allowedHttpMethods = new ArrayList<String>();
if(csv != null){
for(String m : csv.split(",")){
if(m == null || m.isEmpty())
continue;
allowedHttpMethods.add(m.toLowerCase());
}
}
}
@Override
public void process(Exchange exchange) throws Exception {
if(allowedHttpMethods==null || allowedHttpMethods.isEmpty())
return;
Object methodheader = exchange.getIn().getHeader(Exchange.HTTP_METHOD);
if(methodheader == null){
throw new GatewayException(GatewayExceptionCode.HTTP_METHOD, "No HTTP Method");
}
for(String m : allowedHttpMethods){
if(m.equals(methodheader.toString().toLowerCase())){
return;
}
}
throw new GatewayException(GatewayExceptionCode.HTTP_METHOD, "Method "+methodheader.toString()+" not allowed");
}
}