001/* 002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * matic 018 */ 019package org.nuxeo.ecm.automation.client.jaxrs.spi.marshallers; 020 021import java.io.IOException; 022 023import org.codehaus.jackson.JsonGenerator; 024import org.codehaus.jackson.JsonParser; 025import org.codehaus.jackson.JsonToken; 026import org.nuxeo.ecm.automation.client.Constants; 027import org.nuxeo.ecm.automation.client.RemoteException; 028import org.nuxeo.ecm.automation.client.jaxrs.spi.JsonMarshaller; 029import org.nuxeo.ecm.automation.client.jaxrs.spi.JsonMarshalling; 030 031/** 032 * @author matic 033 */ 034public class ExceptionMarshaller implements JsonMarshaller<RemoteException> { 035 036 @Override 037 public String getType() { 038 return "exception"; 039 } 040 041 @Override 042 public Class<RemoteException> getJavaType() { 043 return RemoteException.class; 044 } 045 046 public static RemoteException readException(String content) throws IOException { 047 JsonParser jp = JsonMarshalling.getFactory().createJsonParser(content); 048 jp.nextToken(); // skip { 049 return _read(jp); 050 } 051 052 @Override 053 public RemoteException read(JsonParser jp) throws IOException { 054 return _read(jp); 055 } 056 057 public static RemoteException _read(JsonParser jp) throws IOException { 058 int status = 0; 059 String type = null, message = null; 060 Throwable cause = null; 061 JsonToken tok = jp.nextToken(); 062 while (tok != null && tok != JsonToken.END_OBJECT) { 063 String key = jp.getCurrentName(); 064 tok = jp.nextToken(); 065 if ("status".equals(key)) { 066 if (tok == JsonToken.VALUE_NUMBER_INT) { 067 status = jp.getIntValue(); 068 } else { 069 status = Integer.parseInt(jp.getText()); 070 } 071 } else if (Constants.KEY_ENTITY_TYPE.equals(key) || "type".equals(key)) { 072 type = jp.getText(); 073 } else if ("message".equals(key)) { 074 message = jp.getText(); 075 } else if ("exception".equals(key) || "cause".equals(key)) { 076 cause = jp.readValueAs(Throwable.class); 077 } 078 tok = jp.nextToken(); 079 } 080 if (tok == null) { 081 throw new IllegalArgumentException("Unexpected end of stream."); 082 } 083 return new RemoteException(status, type, message, cause); 084 } 085 086 @Override 087 public void write(JsonGenerator jg, Object value) { 088 throw new UnsupportedOperationException(); 089 } 090 091}