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/**********************************************************************
* Copyright (c) 2003, 2005 IBM Corporation 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:
* IBM Corporation - Initial API and implementation
**********************************************************************/
package org.eclipse.wst.server.ui.internal.wizard.page;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.wst.server.core.IRuntime;
import org.eclipse.wst.server.core.IServerType;
import org.eclipse.wst.server.core.IServerWorkingCopy;
/**
* A helper class used to cache the creation of server elements.
*/
public class ElementCreationCache {
protected Map elementCache;
protected Map taskCache;
/**
* ElementCreationCache constructor comment.
*/
public ElementCreationCache() {
super();
elementCache = new HashMap();
taskCache = new HashMap();
}
/**
* Return the key to use for the given factory.
*
* @param type the server type
* @param isLocalhost true if the server is local
* @return the key
*/
protected String getKey(IServerType type, boolean isLocalhost) {
return type.getId() + "|" + isLocalhost + "|";
}
/**
* Returns a server.
*
* @param type
* @param isLocalhost true if the server is local
* @param monitor a progress monitor
* @return a server working copy
* @throws CoreException if anything goes wrong
*/
public IServerWorkingCopy getServer(IServerType type, boolean isLocalhost, IProgressMonitor monitor) throws CoreException {
try {
IServerWorkingCopy server = getCachedServer(type, isLocalhost);
if (server != null)
return server;
} catch (Exception e) {
// ignore
}
try {
IFile file = null;
//if (ServerPreferences.getInstance().isCreateResourcesInWorkspace())
// file = ServerUtil.getUnusedServerFile(WizardUtil.getServerProject(), type);
IServerWorkingCopy server = type.createServer(null, file, (IRuntime)null, monitor);
elementCache.put(getKey(type, isLocalhost), server);
return server;
} catch (CoreException ce) {
throw ce;
}
}
/**
* Returns a cached server resource.
*
* @param type the server type
* @param isLocalhost true if the server is local
* @return a working copy
*/
public IServerWorkingCopy getCachedServer(IServerType type, boolean isLocalhost) {
try {
IServerWorkingCopy server = (IServerWorkingCopy) elementCache.get(getKey(type, isLocalhost));
if (server != null)
return server;
} catch (Exception e) {
// ignore
}
return null;
}
/**
* Clears a cached server resource.
*
* @param type the server type
* @param isLocalhost true if the server is local
*/
public void clearCachedServer(IServerType type, boolean isLocalhost) {
try {
elementCache.remove(getKey(type, isLocalhost));
} catch (Exception e) {
// ignore
}
}
}
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