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/*
* 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.tuscany.sca.binding.rest.wireformat.xml.provider;
import java.io.InputStream;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import org.apache.tuscany.sca.common.http.HTTPContext;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.invocation.Interceptor;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
/**
* JSON wire format Interceptor.
*
* @version $Rev$ $Date$
*/
public class XMLWireFormatInterceptor implements Interceptor {
private XMLInputFactory inputFactory;
private Invoker next;
public XMLWireFormatInterceptor(ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint) {
FactoryExtensionPoint factories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
inputFactory = factories.getFactory(XMLInputFactory.class);
}
public Invoker getNext() {
return next;
}
public void setNext(Invoker next) {
this.next = next;
}
public Message invoke(Message msg) {
HTTPContext bindingContext = (HTTPContext) msg.getBindingContext();
// Decode using the charset in the request if it exists otherwise
// use UTF-8 as this is what all browser implementations use.
String charset = bindingContext.getHttpRequest().getCharacterEncoding();
if (charset == null) {
charset = "UTF-8";
}
try {
if(msg.getBody() != null) {
Object[] args = msg.getBody();
InputStream data = (InputStream) args[0];
XMLStreamReader xmlPayload = inputFactory.createXMLStreamReader(data, charset);
msg.setBody(new Object[]{xmlPayload});
}
} catch(Exception e) {
throw new RuntimeException("Unable to process xml paylod: " + msg.getBody().toString());
}
return getNext().invoke(msg);
}
}
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