| /* |
| * 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.databinding.json.jackson; |
| |
| import org.apache.tuscany.sca.databinding.PullTransformer; |
| import org.apache.tuscany.sca.databinding.TransformationContext; |
| import org.apache.tuscany.sca.databinding.TransformationException; |
| import org.apache.tuscany.sca.databinding.javabeans.JavaBeansDataBinding; |
| import org.apache.tuscany.sca.databinding.json.JSONDataBinding; |
| import org.codehaus.jackson.JsonNode; |
| import org.codehaus.jackson.JsonParser; |
| import org.codehaus.jackson.map.ObjectMapper; |
| import org.codehaus.jackson.type.JavaType; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class JSON2Object implements PullTransformer<Object, Object> { |
| // private ObjectMapper mapper; |
| |
| public JSON2Object() { |
| super(); |
| } |
| |
| public Object transform(Object source, TransformationContext context) { |
| if (source == null) { |
| return null; |
| } |
| |
| try { |
| Class<?> cls = context.getTargetDataType().getPhysical(); |
| ObjectMapper mapper = JacksonHelper.createObjectMapper(cls); |
| JavaType javaType = mapper.constructType(context.getTargetDataType().getGenericType()); |
| if (source instanceof String) { |
| String sourceString = (String) source; |
| if(sourceString.isEmpty()) { |
| return sourceString; |
| } else { |
| return mapper.readValue((String)source, javaType); |
| } |
| } else if (source instanceof JsonNode) { |
| return mapper.readValue((JsonNode)source, javaType); |
| } else if (source instanceof JsonParser) { |
| return mapper.readValue((JsonParser)source, javaType); |
| } else { |
| return mapper.readValue(source.toString(), javaType); |
| } |
| } catch (Exception e) { |
| throw new TransformationException(e); |
| } |
| } |
| |
| public String getSourceDataBinding() { |
| return JSONDataBinding.NAME; |
| } |
| |
| public String getTargetDataBinding() { |
| return JavaBeansDataBinding.NAME; |
| } |
| |
| public int getWeight() { |
| return 5000; |
| } |
| } |