/*
* Copyright 2014 JBoss Inc
*
* 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.drools.workbench.models.guided.dtree.backend;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
import org.drools.workbench.models.guided.dtree.shared.model.GuidedDecisionTree;
public class GuidedDecisionTreeXMLPersistence {
private static final GuidedDecisionTreeXMLPersistence INSTANCE = new GuidedDecisionTreeXMLPersistence();
private XStream xt;
private GuidedDecisionTreeXMLPersistence() {
xt = new XStream( new DomDriver() );
}
public static GuidedDecisionTreeXMLPersistence getInstance() {
return INSTANCE;
}
public String marshal( final GuidedDecisionTree dtree ) {
return xt.toXML( dtree );
}
public GuidedDecisionTree unmarshal( final String xml ) {
if ( xml == null || xml.trim().equals( "" ) ) {
return new GuidedDecisionTree();
}
GuidedDecisionTree model = (GuidedDecisionTree) xt.fromXML( xml );
return model;
}
}