| /* |
| * 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.axis2.json.gson; |
| |
| import com.google.gson.Gson; |
| import com.google.gson.GsonBuilder; |
| import com.google.gson.stream.JsonWriter; |
| import org.apache.axiom.om.OMElement; |
| import org.apache.axiom.om.OMOutputFormat; |
| import org.apache.axis2.AxisFault; |
| import org.apache.axis2.Constants; |
| import org.apache.axis2.context.MessageContext; |
| import org.apache.axis2.json.factory.JsonConstant; |
| import org.apache.axis2.kernel.MessageFormatter; |
| import org.apache.axis2.wsdl.WSDLConstants; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.ws.commons.schema.XmlSchema; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.XMLStreamException; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.UnsupportedEncodingException; |
| import java.lang.reflect.Type; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| |
| public class JsonFormatter implements MessageFormatter { |
| private static final Log log = LogFactory.getLog(JsonFormatter.class); |
| |
| public void writeTo(MessageContext outMsgCtxt, OMOutputFormat omOutputFormat, OutputStream outputStream, boolean preserve) throws AxisFault { |
| String charSetEncoding = (String) outMsgCtxt.getProperty(Constants.Configuration.CHARACTER_SET_ENCODING); |
| JsonWriter jsonWriter; |
| String msg; |
| |
| try { |
| jsonWriter = new JsonWriter(new OutputStreamWriter(outputStream, charSetEncoding)); |
| Object retObj = outMsgCtxt.getProperty(JsonConstant.RETURN_OBJECT); |
| |
| if (outMsgCtxt.isProcessingFault()) { |
| OMElement element = outMsgCtxt.getEnvelope().getBody().getFirstElement(); |
| try { |
| jsonWriter.beginObject(); |
| jsonWriter.name(element.getLocalName()); |
| jsonWriter.beginObject(); |
| Iterator childrenIterator = element.getChildElements(); |
| while (childrenIterator.hasNext()) { |
| Object next = childrenIterator.next(); |
| OMElement omElement = (OMElement) next; |
| jsonWriter.name(omElement.getLocalName()); |
| jsonWriter.value(omElement.getText()); |
| } |
| jsonWriter.endObject(); |
| jsonWriter.endObject(); |
| jsonWriter.flush(); |
| jsonWriter.close(); |
| } catch (IOException e) { |
| throw new AxisFault("Error while processing fault code in JsonWriter"); |
| } |
| |
| } else if (retObj == null) { |
| OMElement element = outMsgCtxt.getEnvelope().getBody().getFirstElement(); |
| QName elementQname = outMsgCtxt.getAxisOperation().getMessage |
| (WSDLConstants.MESSAGE_LABEL_OUT_VALUE).getElementQName(); |
| |
| ArrayList<XmlSchema> schemas = outMsgCtxt.getAxisService().getSchema(); |
| GsonXMLStreamWriter xmlsw = new GsonXMLStreamWriter(jsonWriter, |
| elementQname, |
| schemas, |
| outMsgCtxt.getConfigurationContext()); |
| try { |
| xmlsw.writeStartDocument(); |
| element.serialize(xmlsw, preserve); |
| xmlsw.writeEndDocument(); |
| } catch (XMLStreamException e) { |
| throw new AxisFault("Error while writing to the output stream using JsonWriter", e); |
| } |
| |
| } else { |
| try { |
| GsonBuilder gsonBuilder = new GsonBuilder(); |
| // XSS protection, encode JSON Strings as HTML |
| gsonBuilder.registerTypeAdapter(String.class, new JsonHtmlEncoder()); |
| Gson gson = gsonBuilder.create(); |
| jsonWriter.beginObject(); |
| jsonWriter.name(JsonConstant.RESPONSE); |
| Type returnType = (Type) outMsgCtxt.getProperty(JsonConstant.RETURN_TYPE); |
| gson.toJson(retObj, returnType, jsonWriter); |
| jsonWriter.endObject(); |
| jsonWriter.flush(); |
| |
| } catch (IOException e) { |
| msg = "Exception occur while writting to JsonWriter at the JsonFormatter "; |
| log.error(msg, e); |
| throw AxisFault.makeFault(e); |
| } |
| } |
| log.debug("JsonFormatter.writeTo() has completed"); |
| } catch (UnsupportedEncodingException e) { |
| msg = "Exception occur when try to encode output stream usig " + |
| Constants.Configuration.CHARACTER_SET_ENCODING + " charset"; |
| log.error(msg, e); |
| throw AxisFault.makeFault(e); |
| } |
| } |
| |
| public String getContentType(MessageContext outMsgCtxt, OMOutputFormat omOutputFormat, String s) { |
| return (String)outMsgCtxt.getProperty(Constants.Configuration.CONTENT_TYPE); |
| } |
| |
| public URL getTargetAddress(MessageContext messageContext, OMOutputFormat omOutputFormat, URL url) throws AxisFault { |
| return null; |
| } |
| |
| public String formatSOAPAction(MessageContext messageContext, OMOutputFormat omOutputFormat, String s) { |
| return null; |
| } |
| } |