/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* 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.kie.workbench.common.stunner.backend.service;
import java.beans.XMLDecoder;
import java.beans.XMLEncoder;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.enterprise.context.ApplicationScoped;
import org.kie.workbench.common.stunner.core.definition.service.DiagramMetadataMarshaller;
import org.kie.workbench.common.stunner.core.diagram.Metadata;
@ApplicationScoped
public class XMLEncoderDiagramMetadataMarshaller implements DiagramMetadataMarshaller<Metadata> {
private static final String CHARSET = "UTF-8";
@Override
public Metadata unmarshall(final InputStream input) throws IOException {
XMLDecoder decoder = new XMLDecoder(input);
return (Metadata) decoder.readObject();
}
@Override
public String marshall(final Metadata metadata) throws IOException {
ByteArrayOutputStream os = new ByteArrayOutputStream();
XMLEncoder encoder = new XMLEncoder(os);
encoder.writeObject(metadata);
encoder.close();
String raw = os.toString(CHARSET);
return raw;
}
}