| /******************************************************************************* |
| * Copyright (c) 2000, 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 v2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.launching; |
| |
| |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.wst.jsdt.core.IAccessRule; |
| import org.eclipse.wst.jsdt.core.IIncludePathAttribute; |
| import org.eclipse.wst.jsdt.core.IIncludePathEntry; |
| import org.eclipse.wst.jsdt.core.IJsGlobalScopeContainer; |
| import org.eclipse.wst.jsdt.core.JavaScriptCore; |
| |
| /** |
| * JRE Container - resolves a includepath container variable to a JRE |
| * |
| * Provisional API: This class/interface is part of an interim API that is still under development and expected to |
| * change significantly before reaching stability. It is being made available at this early stage to solicit feedback |
| * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken |
| * (repeatedly) as the API evolves. |
| */ |
| public class JREContainer implements IJsGlobalScopeContainer { |
| |
| /** |
| * Corresponding JRE |
| */ |
| private IVMInstall fVMInstall = null; |
| |
| /** |
| * Container path used to resolve to this JRE |
| */ |
| private IPath fPath = null; |
| |
| /** |
| * Cache of includepath entries per VM install. Cleared when a VM changes. |
| */ |
| private static Map fgClasspathEntries = null; |
| |
| private static IAccessRule[] EMPTY_RULES = new IAccessRule[0]; |
| |
| /** |
| * Returns the includepath entries associated with the given VM. |
| * |
| * @param vm |
| * @return includepath entries |
| */ |
| private static IIncludePathEntry[] getClasspathEntries(IVMInstall vm) { |
| if (fgClasspathEntries == null) { |
| fgClasspathEntries = new HashMap(10); |
| // add a listener to clear cached value when a VM changes or is removed |
| // IVMInstallChangedListener listener = new IVMInstallChangedListener() { |
| // public void defaultVMInstallChanged(IVMInstall previous, IVMInstall current) { |
| // } |
| // |
| // public void vmChanged(PropertyChangeEvent event) { |
| // if (event.getSource() != null) { |
| // fgClasspathEntries.remove(event.getSource()); |
| // } |
| // } |
| // |
| // public void vmAdded(IVMInstall newVm) { |
| // } |
| // |
| // public void vmRemoved(IVMInstall removedVm) { |
| // fgClasspathEntries.remove(removedVm); |
| // } |
| // }; |
| // JavaRuntime.addVMInstallChangedListener(listener); |
| } |
| IIncludePathEntry[] entries = (IIncludePathEntry[])fgClasspathEntries.get(vm); |
| if (entries == null) { |
| entries = computeClasspathEntries(vm); |
| fgClasspathEntries.put(vm, entries); |
| } |
| return entries; |
| } |
| |
| /** |
| * Computes the includepath entries associated with a VM - one entry per library. |
| * |
| * @param vm |
| * @return includepath entries |
| */ |
| private static IIncludePathEntry[] computeClasspathEntries(IVMInstall vm) { |
| LibraryLocation[] libs = vm.getLibraryLocations(); |
| boolean overridejsdoc = false; |
| if (libs == null) { |
| libs = JavaRuntime.getLibraryLocations(vm); |
| overridejsdoc = true; |
| } |
| List entries = new ArrayList(libs.length); |
| for (int i = 0; i < libs.length; i++) { |
| if (!libs[i].getSystemLibraryPath().isEmpty()) { |
| IPath sourcePath = libs[i].getSystemLibrarySourcePath(); |
| if (sourcePath.isEmpty()) { |
| sourcePath = null; |
| } |
| IPath rootPath = libs[i].getPackageRootPath(); |
| if (rootPath.isEmpty()) { |
| rootPath = null; |
| } |
| URL javadocLocation = libs[i].getJavadocLocation(); |
| if (overridejsdoc && javadocLocation == null) { |
| javadocLocation = vm.getJavadocLocation(); |
| } |
| IIncludePathAttribute[] attributes = null; |
| if (javadocLocation == null) { |
| attributes = new IIncludePathAttribute[0]; |
| } else { |
| attributes = new IIncludePathAttribute[]{JavaScriptCore.newIncludepathAttribute(IIncludePathAttribute.JSDOC_LOCATION_ATTRIBUTE_NAME, javadocLocation.toExternalForm())}; |
| } |
| entries.add(JavaScriptCore.newLibraryEntry(libs[i].getSystemLibraryPath(), sourcePath, rootPath, EMPTY_RULES, attributes, false)); |
| } |
| } |
| return (IIncludePathEntry[])entries.toArray(new IIncludePathEntry[entries.size()]); |
| } |
| |
| /** |
| * Constructs a JRE includepath conatiner on the given VM install |
| * |
| * @param vm vm install - cannot be <code>null</code> |
| * @param path container path used to resolve this JRE |
| */ |
| public JREContainer(IVMInstall vm, IPath path) { |
| fVMInstall = vm; |
| fPath = path; |
| } |
| |
| /** |
| * @see IJsGlobalScopeContainer#getIncludepathEntries() |
| */ |
| public IIncludePathEntry[] getIncludepathEntries() { |
| return getClasspathEntries(fVMInstall); |
| } |
| |
| /** |
| * @see IJsGlobalScopeContainer#getDescription() |
| */ |
| public String getDescription() { |
| // String environmentId = JavaRuntime.getExecutionEnvironmentId(getPath()); |
| // String tag = null; |
| // if (environmentId == null) { |
| // tag = fVMInstall.getName(); |
| // } else { |
| // tag = environmentId; |
| // } |
| return LaunchingMessages.JREContainer_JRE_System_Library_1; |
| } |
| |
| /** |
| * @see IJsGlobalScopeContainer#getKind() |
| */ |
| public int getKind() { |
| return IJsGlobalScopeContainer.K_DEFAULT_SYSTEM; |
| } |
| |
| /** |
| * @see IJsGlobalScopeContainer#getPath() |
| */ |
| public IPath getPath() { |
| return fPath; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.wst.jsdt.core.IJsGlobalScopeContainer#resolvedLibraryImport(java.lang.String) |
| */ |
| public String[] resolvedLibraryImport(String a) { |
| |
| return null; |
| } |
| |
| } |