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/*
* Copyright (c) 2004-2014 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.internal.explorer;
import org.eclipse.emf.cdo.explorer.CDOExplorerElement;
import org.eclipse.emf.cdo.internal.explorer.bundle.OM;
import org.eclipse.net4j.util.AdapterUtil;
import org.eclipse.net4j.util.event.Notifier;
import org.eclipse.net4j.util.io.IOUtil;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Properties;
/**
* @author Eike Stepper
*/
public abstract class AbstractElement extends Notifier implements CDOExplorerElement, Adapter.Internal
{
public static final String PROPERTIES_FILE = "_properties";
public static final String PROP_ID = "id";
public static final String PROP_TYPE = "type";
public static final String PROP_LABEL = "label";
private org.eclipse.emf.common.notify.Notifier target;
private File folder;
private String id;
private String type;
private String label;
public AbstractElement()
{
}
public final File getFolder()
{
return folder;
}
public final String getID()
{
return id;
}
public final String getType()
{
return type;
}
public final String getLabel()
{
return label;
}
public final void setLabel(String label)
{
this.label = label;
save();
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public Object getAdapter(Class adapter)
{
return AdapterUtil.adapt(this, adapter, false);
}
public void notifyChanged(Notification notification)
{
}
public org.eclipse.emf.common.notify.Notifier getTarget()
{
return target;
}
public void setTarget(org.eclipse.emf.common.notify.Notifier newTarget)
{
target = newTarget;
}
public void unsetTarget(org.eclipse.emf.common.notify.Notifier oldTarget)
{
if (target == oldTarget)
{
setTarget(null);
}
}
public boolean isAdapterForType(Object type)
{
return false;
}
@Override
public boolean equals(Object obj)
{
if (obj == this)
{
return true;
}
if (obj == null)
{
return false;
}
if (obj.getClass() == getClass())
{
AbstractElement that = (AbstractElement)obj;
return id.equals(that.getID());
}
return false;
}
@Override
public int hashCode()
{
return getClass().hashCode() ^ id.hashCode();
}
public void delete(boolean deleteContents)
{
if (deleteContents)
{
IOUtil.delete(folder);
}
else
{
File from = new File(folder, PROPERTIES_FILE);
File dest = new File(from.getParentFile(), from.getName() + ".removed");
from.renameTo(dest);
}
}
public void save()
{
folder.mkdirs();
Properties properties = new Properties();
collectProperties(properties);
OutputStream out = null;
try
{
File file = new File(folder, PROPERTIES_FILE);
out = new FileOutputStream(file);
properties.store(out, getClass().getSimpleName());
}
catch (IOException ex)
{
OM.LOG.error(ex);
}
finally
{
IOUtil.close(out);
}
}
protected void init(File folder, String type, Properties properties)
{
this.folder = folder;
id = folder.getName();
this.type = type;
label = properties.getProperty(PROP_LABEL);
}
protected void collectProperties(Properties properties)
{
properties.put("type", type);
properties.put("label", label);
}
public static AbstractElement[] collect(Collection<?> c)
{
List<AbstractElement> result = new ArrayList<AbstractElement>();
for (Object object : c)
{
if (object instanceof AbstractElement)
{
AbstractElement element = (AbstractElement)object;
result.add(element);
}
}
return result.toArray(new AbstractElement[result.size()]);
}
}
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