| /******************************************************************************* |
| * Copyright (c) 2003, 2008 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.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 servers. |
| */ |
| public class ServerCreationCache { |
| protected Map<String, IServerWorkingCopy> cache; |
| |
| /** |
| * ServerCreationCache constructor comment. |
| */ |
| public ServerCreationCache() { |
| super(); |
| cache = new HashMap<String, IServerWorkingCopy>(); |
| } |
| |
| /** |
| * Return the key to use for the given server type. |
| * |
| * @param type the server type |
| * @param isLocalhost true if the server is local |
| * @return the key |
| */ |
| private String getKey(IServerType type, boolean isLocalhost) { |
| return type.getId() + "|" + isLocalhost + "|"; |
| } |
| |
| /** |
| * Create a new server and put it in the cache. |
| * |
| * @param type the server type |
| * @param runtime a runtime, or null |
| * @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 createServer(IServerType type, IRuntime runtime, boolean isLocalhost, IProgressMonitor monitor) throws CoreException { |
| IServerWorkingCopy server = type.createServer(null, null, runtime, monitor); |
| cache.put(getKey(type, isLocalhost), server); |
| return server; |
| } |
| |
| /** |
| * Returns a previously cached server, if one exists |
| * |
| * @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 = cache.get(getKey(type, isLocalhost)); |
| if (server != null) |
| return server; |
| } catch (Exception e) { |
| // ignore |
| } |
| |
| return null; |
| } |
| } |