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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.databinding.json;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.databinding.BaseDataBinding;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.interfacedef.util.XMLType;
import org.codehaus.jettison.json.JSONObject;
/**
* JAXB DataBinding
*
* @version $Rev$ $Date$
*/
public class JSONDataBinding extends BaseDataBinding {
public static final String NAME = "JSON";
public static final String ROOT_NAMESPACE = "http://tuscany.apache.org/xmlns/sca/databinding/json/1.0";
public static final QName ROOT_ELEMENT = new QName(ROOT_NAMESPACE, "root");
public JSONDataBinding() {
super(NAME, org.json.JSONObject.class);
}
@Override
public boolean introspect(DataType type, Operation operation) {
assert type != null;
Class cls = type.getPhysical();
if (JSONObject.class.isAssignableFrom(cls) || org.json.JSONObject.class.isAssignableFrom(cls)) {
type.setDataBinding(getName());
if (type.getLogical() == null) {
type.setLogical(XMLType.UNKNOWN);
}
return true;
}
return false;
}
@SuppressWarnings("unchecked")
@Override
public Object copy(Object arg,
DataType sourceDataType,
DataType targetDataType,
Operation sourceOperation,
Operation targetOperation) {
if (arg == null) {
return null;
}
try {
Class type = arg != null ? arg.getClass() : null;
return JSONHelper.toJSON(arg.toString(), type);
} catch (Exception e) {
throw new IllegalArgumentException(e);
}
}
}
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