| /******************************************************************************* |
| * Copyright (c) 2005, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.launching; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.debug.core.ILaunchConfiguration; |
| import org.eclipse.debug.core.ILaunchConfigurationMigrationDelegate; |
| import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants; |
| |
| /** |
| * Delegate for migrating Java launch configurations. |
| * The migration process involves a resource mapping being created such that launch configurations |
| * can be filtered from the launch configuration dialog based on resource availability |
| * |
| * @since 3.2 |
| */ |
| public class JavaMigrationDelegate implements ILaunchConfigurationMigrationDelegate { |
| |
| /** |
| * represents the empty string |
| */ |
| protected static final String EMPTY_STRING = ""; //$NON-NLS-1$ |
| |
| /** |
| * Constructor needed for reflection |
| */ |
| public JavaMigrationDelegate() {} |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.ILaunchConfigurationMigrationDelegate#isCandidate() |
| */ |
| @Override |
| public boolean isCandidate(ILaunchConfiguration candidate) throws CoreException { |
| String pName = candidate.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, EMPTY_STRING); |
| if(pName.equals(EMPTY_STRING)) { |
| return false; |
| } |
| if (!isAvailable(pName)) { |
| return false; |
| } |
| IResource[] mapped = candidate.getMappedResources(); |
| IResource target = getResource(candidate); |
| if (target == null) { |
| return mapped != null; |
| } |
| if (mapped == null) { |
| return true; |
| } |
| if (mapped.length != 1) { |
| return true; |
| } |
| return !target.equals(mapped[0]); |
| } |
| |
| /** |
| * Returns whether the given project is available. |
| * |
| * @param projectName project name |
| * @return whether the project exists and is open |
| */ |
| private boolean isAvailable(String projectName) { |
| IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projectName); |
| return project.exists() && project.isOpen(); |
| } |
| |
| /** |
| * Returns the associated <code>IResource</code> for the specified launch configuration |
| * or <code>null</code> if none. |
| * |
| * @param candidate the candidate to get the backing resource for |
| * @return associated <code>IResource</code> or <code>null</code> |
| * |
| * @since 3.3 |
| * |
| * @throws CoreException if there is an error |
| */ |
| static IResource getResource(ILaunchConfiguration candidate) throws CoreException { |
| IResource resource = null; |
| String pname = candidate.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, EMPTY_STRING); |
| if(Path.ROOT.isValidSegment(pname)) { |
| IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(pname); |
| String tname = candidate.getAttribute(IJavaLaunchConfigurationConstants.ATTR_MAIN_TYPE_NAME, EMPTY_STRING); |
| if(!EMPTY_STRING.equals(tname)) { |
| if(project != null && project.isAccessible()) { |
| IJavaProject jproject = JavaCore.create(project); |
| if(jproject != null && jproject.exists()) { |
| tname = tname.replace('$', '.'); |
| IType type = jproject.findType(tname); |
| if(type != null) { |
| try { |
| resource = type.getUnderlyingResource(); |
| if(resource == null) { |
| resource = type.getAdapter(IResource.class); |
| } |
| } |
| catch(JavaModelException jme) { |
| LaunchingPlugin.log(jme); |
| return null; |
| } |
| } |
| } |
| } |
| } else { |
| return project; |
| } |
| if (resource == null) { |
| resource = project; |
| } |
| } |
| return resource; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.ILaunchConfigurationMigrationDelegate#migrate(org.eclipse.debug.core.ILaunchConfiguration) |
| */ |
| @Override |
| public void migrate(ILaunchConfiguration candidate) throws CoreException { |
| ILaunchConfigurationWorkingCopy wc = candidate.getWorkingCopy(); |
| updateResourceMapping(wc); |
| wc.doSave(); |
| } |
| |
| /** |
| * Updates the resource mapping for the given launch configuration. |
| * |
| * @param wc working copy |
| * @throws CoreException if an exception occurs updating resource mapping. |
| */ |
| public static void updateResourceMapping(ILaunchConfigurationWorkingCopy wc) throws CoreException { |
| IResource resource = getResource(wc); |
| IResource[] resources = null; |
| if (resource != null) { |
| resources = new IResource[]{resource}; |
| } |
| wc.setMappedResources(resources); |
| } |
| |
| } |