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/*******************************************************************************
* Copyright (c) 2011, 2012 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.core.internal.plugin;
import java.util.HashMap;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.jpt.common.core.internal.InternalJptWorkspace;
import org.eclipse.jpt.common.core.internal.utility.JptPlugin;
public class JptCommonCorePlugin
extends JptPlugin
{
// NB: the plug-in must be synchronized whenever accessing any of this state
private final HashMap<IWorkspace, InternalJptWorkspace> jptWorkspaces = new HashMap<IWorkspace, InternalJptWorkspace>();
// ********** singleton **********
private static volatile JptCommonCorePlugin INSTANCE;
/**
* Return the singleton Dali common core plug-in.
*/
public static JptCommonCorePlugin instance() {
return INSTANCE;
}
// ********** Dali plug-in **********
public JptCommonCorePlugin() {
super();
}
@Override
protected void setInstance(JptPlugin plugin) {
INSTANCE = (JptCommonCorePlugin) plugin;
}
@Override
protected void stop_() throws Exception {
try {
for (InternalJptWorkspace jptWorkspace : this.jptWorkspaces.values()) {
try {
jptWorkspace.stop();
} catch (Throwable ex) {
this.logError(ex); // keep going
}
}
this.jptWorkspaces.clear();
} finally {
super.stop_();
}
}
// ********** Dali workspaces **********
/**
* Return the Dali workspace corresponding to the specified Eclipse workspace.
* <p>
* The preferred way to retrieve a Dali workspace is via the Eclipse
* adapter framework:
* <pre>
* JptWorkspace jptWorkspace = (JptWorkspace) ResourcesPlugin.getWorkspace().getAdapter(JptWorkspace.class)
* </pre>
* @see org.eclipse.jpt.common.core.internal.WorkspaceAdapterFactory#getJptWorkspace(IWorkspace)
*/
public synchronized InternalJptWorkspace getJptWorkspace(IWorkspace workspace) {
InternalJptWorkspace jptWorkspace = this.jptWorkspaces.get(workspace);
if ((jptWorkspace == null) && this.isActive()) {
jptWorkspace = this.buildJptWorkspace(workspace);
this.jptWorkspaces.put(workspace, jptWorkspace);
}
return jptWorkspace;
}
private InternalJptWorkspace buildJptWorkspace(IWorkspace workspace) {
return new InternalJptWorkspace(workspace);
}
}
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