| /******************************************************************************* |
| * Copyright (c) 2005, 2011 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.jst.server.core.internal; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.jdt.core.IClasspathEntry; |
| import org.eclipse.jst.server.core.RuntimeClasspathProviderDelegate; |
| import org.eclipse.wst.server.core.*; |
| import org.eclipse.wst.server.core.internal.ServerPlugin; |
| /** |
| * |
| */ |
| public class RuntimeClasspathProviderWrapper { |
| private IConfigurationElement element; |
| private volatile RuntimeClasspathProviderDelegate delegate; |
| |
| /** |
| * Create a new runtime target handler. |
| * |
| * @param element a configuration element |
| */ |
| public RuntimeClasspathProviderWrapper(IConfigurationElement element) { |
| super(); |
| this.element = element; |
| } |
| |
| protected IConfigurationElement getElement() { |
| return element; |
| } |
| |
| /** |
| * |
| * @return the id |
| */ |
| public String getId() { |
| return element.getAttribute("id"); |
| } |
| |
| /** |
| * Returns the order. |
| * |
| * @return the order |
| */ |
| public int getOrder() { |
| try { |
| String o = element.getAttribute("order"); |
| return Integer.parseInt(o); |
| } catch (NumberFormatException e) { |
| return -1; |
| } |
| } |
| |
| public String[] getRuntimeTypeIds() { |
| try { |
| List<String> list = new ArrayList<String>(); |
| StringTokenizer st = new StringTokenizer(element.getAttribute("runtimeTypeIds"), ","); |
| while (st.hasMoreTokens()) { |
| String str = st.nextToken(); |
| if (str != null && str.length() > 0) |
| list.add(str.trim()); |
| } |
| String[] s = new String[list.size()]; |
| list.toArray(s); |
| return s; |
| } catch (Exception e) { |
| if (Trace.SEVERE) { |
| Trace.trace(Trace.STRING_SEVERE, "Could not parse runtime type ids: " + element); |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * Returns true if the given server resource type (given by the |
| * id) can be opened with this editor. This result is based on |
| * the result of the getServerResources() method. |
| * |
| * @param runtimeType a runtime type |
| * @return boolean |
| */ |
| public boolean supportsRuntimeType(IRuntimeType runtimeType) { |
| if (runtimeType == null) |
| return false; |
| return supportsRuntimeType(runtimeType.getId()); |
| } |
| |
| /** |
| * Returns true if the given server resource type (given by the |
| * id) can be opened with this editor. This result is based on |
| * the result of the getServerResources() method. |
| * |
| * @param id a runtime type id |
| * @return boolean |
| */ |
| public boolean supportsRuntimeType(String id) { |
| if (id == null || id.length() == 0) |
| return false; |
| |
| String[] s = getRuntimeTypeIds(); |
| if (s == null) |
| return false; |
| |
| for (String ss : s) { |
| if (ss.endsWith("*")) { |
| if (id.length() >= ss.length() && id.startsWith(ss.substring(0, ss.length() - 1))) |
| return true; |
| } else if (id.equals(ss)) |
| return true; |
| } |
| return false; |
| } |
| |
| /* |
| * Loads the delegate class. |
| */ |
| public RuntimeClasspathProviderDelegate getDelegate() { |
| if (delegate == null) { |
| try { |
| // Create delegate unsynchronized to avoid possible deadlocks |
| RuntimeClasspathProviderDelegate tempDelegate = (RuntimeClasspathProviderDelegate) element.createExecutableExtension("class"); |
| tempDelegate.initialize(getId()); |
| // If delegate is not already set, use this delegate |
| synchronized (this) { |
| if (delegate == null) { |
| delegate = tempDelegate; |
| } |
| } |
| } catch (Throwable t) { |
| ServerPlugin.logExtensionFailure(toString(), t); |
| } |
| } |
| return delegate; |
| } |
| |
| /* |
| * @see RuntimeClasspathProviderDelegate#resolveClasspathContainerImpl(IProject, IRuntime) |
| */ |
| public IClasspathEntry[] resolveClasspathContainerImpl(IProject project, IRuntime runtime) { |
| if (runtime == null) |
| return null; |
| try { |
| return getDelegate().resolveClasspathContainerImpl(project, runtime); |
| } catch (Exception e) { |
| ServerPlugin.logExtensionFailure(toString(), e); |
| } |
| return null; |
| } |
| |
| public void requestClasspathContainerUpdate(IRuntime runtime, IClasspathEntry[] entries) { |
| if (runtime == null) |
| return; |
| try { |
| getDelegate().requestClasspathContainerUpdate(runtime, entries); |
| } catch (Exception e) { |
| ServerPlugin.logExtensionFailure(toString(), e); |
| } |
| } |
| |
| /* |
| * @see RuntimeClasspathProviderDelegate#hasRuntimeClasspathChanged(IRuntime) |
| */ |
| public boolean hasRuntimeClasspathChanged(IRuntime runtime) { |
| if (runtime == null) |
| return false; |
| try { |
| return getDelegate().hasRuntimeClasspathChanged(runtime); |
| } catch (Exception e) { |
| ServerPlugin.logExtensionFailure(toString(), e); |
| } |
| return false; |
| } |
| |
| public String toString() { |
| return "RuntimeClasspathProviderWrapper[" + getId() + "]"; |
| } |
| } |