/*
* Copyright 2003-2011 JetBrains s.r.o.
*
* 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 jetbrains.mps.smodel.persistence.def;
import org.apache.log4j.Logger;
import org.apache.log4j.LogManager;
import jetbrains.mps.util.JDOMUtil;
import jetbrains.mps.vfs.IFile;
import org.jdom.Element;
import org.jdom.JDOMException;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class DefaultMetadataPersistence {
private static final Logger LOG = LogManager.getLogger(DefaultMetadataPersistence.class);
private static final String ENTRY = "entry";
private static final String KEY = "key";
private static final String VALUE = "value";
public static Map<String, String> load(IFile file) {
try {
Map<String, String> result = new HashMap<String, String>();
Element root = JDOMUtil.loadDocument(file).getRootElement();
for (Element entry : (List<Element>) root.getChildren(ENTRY)) {
result.put(entry.getChild(KEY).getText(), entry.getChild(VALUE).getText());
}
return result;
} catch (IOException e) {
LOG.error("Was not able to load metadata. File: " + file.getPath() + ". Assuming there's no metadata for this model.", e);
return null;
} catch (JDOMException e) {
LOG.error("Metadata file corrupted. File: " + file.getPath() + ". Assuming there's no metadata for this model.", e);
return null;
}
}
}