/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* Licensed 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.axis2.json;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.io.ByteArrayInputStream;
import org.apache.axiom.om.*;
import org.apache.axiom.om.impl.OMNamespaceImpl;
import org.apache.axiom.om.impl.llom.OMSourcedElementImpl;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.transport.http.util.URIEncoderDecoder;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.builder.Builder;
import org.apache.axis2.context.MessageContext;
import java.io.IOException;
import java.io.InputStream;
/** Makes the OMSourcedElementImpl object with the JSONDataSource inside. */
public class JSONOMBuilder implements Builder {
public JSONOMBuilder() {
}
//returns the OMSourcedElementImpl with JSONDataSource inside
public OMElement processDocument(InputStream inputStream, String contentType, MessageContext messageContext) throws AxisFault {
String localName = "";
String prefix = "";
OMNamespace ns = new OMNamespaceImpl("", "");
OMFactory factory = OMAbstractFactory.getOMFactory();
//if the input stream is null, then check whether the HTTP method is GET, if so get the JSON String which is received as a parameter, and make it an
//input stream
if (inputStream == null) {
EndpointReference endpointReference = messageContext.getTo();
if (endpointReference == null) {
throw new AxisFault("Cannot create DocumentElement without destination EPR");
}
String requestURL;
try {
requestURL = URIEncoderDecoder.decode(endpointReference.getAddress());
} catch (UnsupportedEncodingException e) {
throw new AxisFault(e);
}
String jsonString;
int index;
if ((index = requestURL.indexOf("=")) > 0) {
jsonString = requestURL.substring(index + 1);
inputStream = new ByteArrayInputStream(jsonString.getBytes());
} else {
throw new AxisFault("No JSON message received through HTTP GET or POST");
}
}
try {
char temp = (char)inputStream.read();
while (temp != ':') {
if (temp != ' ' && temp != '{') {
localName += temp;
}
temp = (char)inputStream.read();
}
if (localName.charAt(0) == '"') {
if (localName.charAt(localName.length() - 1) == '"') {
localName = localName.substring(1, localName.length() - 1);
} else {
prefix = localName.substring(1, localName.length()) + ":";
localName = "";
temp = (char)inputStream.read();
while (temp != ':') {
if (temp != ' ') {
localName += temp;
}
temp = (char)inputStream.read();
}
localName = localName.substring(0, localName.length() - 1);
}
}
} catch (IOException e) {
throw new AxisFault(e);
}
JSONDataSource jsonDataSource = getDataSource(inputStream, prefix, localName);
return new OMSourcedElementImpl(localName, ns, factory, jsonDataSource);
}
protected JSONDataSource getDataSource(InputStream jsonInputStream, String prefix, String localName) {
return new JSONDataSource(jsonInputStream, "\"" + prefix + localName + "\"");
}
}