| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2007, 2008 IBM Corporation and others. |
| 3 | * All rights reserved. This program and the accompanying materials |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 |
| 5 | * which accompanies this distribution, and is available at |
| 6 | * http://www.eclipse.org/legal/epl-v10.html |
| 7 | * |
| 8 | * Contributors: |
| 9 | * IBM Corporation - initial API and implementation |
| 10 | *******************************************************************************/ |
| 11 | package org.eclipse.pde.api.tools.internal.natures; |
| 12 | |
| 13 | import org.eclipse.core.resources.ICommand; |
| 14 | import org.eclipse.core.resources.IProject; |
| 15 | import org.eclipse.core.resources.IProjectDescription; |
| 16 | import org.eclipse.core.resources.IProjectNature; |
| 17 | import org.eclipse.core.runtime.CoreException; |
| 18 | import org.eclipse.pde.api.tools.internal.provisional.ApiPlugin; |
| 19 | |
| 20 | public class ApiToolProjectNature implements IProjectNature { |
| 21 | |
| 22 | IProject project; |
| 23 | |
| 24 | /** |
| 25 | * Add the Api plugin builder in the project build spec |
| 26 | */ |
| 27 | public void configure() throws CoreException { |
| 28 | addToBuildSpec(ApiPlugin.BUILDER_ID); |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Remove the Api plugin builder from the project build spec |
| 33 | */ |
| 34 | public void deconfigure() throws CoreException { |
| 35 | removeFromBuildSpec(ApiPlugin.BUILDER_ID); |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * Retrieve the current project |
| 40 | * |
| 41 | * @return the current project |
| 42 | */ |
| 43 | public IProject getProject() { |
| 44 | return this.project; |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Sset the current project |
| 49 | */ |
| 50 | public void setProject(IProject project) { |
| 51 | this.project = project; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Adds a builder to the build spec for the given project. |
| 56 | */ |
| 57 | protected void addToBuildSpec(String builderID) throws CoreException { |
| 58 | IProjectDescription description = this.project.getDescription(); |
| 59 | ICommand[] oldBuildSpec = description.getBuildSpec(); |
| 60 | int oldApiCommandIndex = -1; |
| 61 | int length = oldBuildSpec.length; |
| 62 | loop: for (int i = 0; i < length; ++i) { |
| 63 | if (oldBuildSpec[i].getBuilderName().equals(builderID)) { |
| 64 | oldApiCommandIndex = i; |
| 65 | break loop; |
| 66 | } |
| 67 | } |
| 68 | ICommand[] newCommands; |
| 69 | |
| 70 | ICommand newCommand = description.newCommand(); |
| 71 | newCommand.setBuilderName(builderID); |
| 72 | |
| 73 | if (oldApiCommandIndex == -1) { |
| 74 | // Add a API build spec after all existing builders |
| 75 | newCommands = new ICommand[length + 1]; |
| 76 | System.arraycopy(oldBuildSpec, 0, newCommands, 0, length); |
| 77 | newCommands[length] = newCommand; |
| 78 | } else { |
| 79 | oldBuildSpec[oldApiCommandIndex] = newCommand; |
| 80 | newCommands = oldBuildSpec; |
| 81 | } |
| 82 | |
| 83 | // Commit the spec change into the project |
| 84 | description.setBuildSpec(newCommands); |
| 85 | this.project.setDescription(description, null); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Removes the given builder from the build spec for the given project. |
| 90 | */ |
| 91 | protected void removeFromBuildSpec(String builderID) throws CoreException { |
| 92 | IProjectDescription description = this.project.getDescription(); |
| 93 | ICommand[] commands = description.getBuildSpec(); |
| 94 | for (int i = 0; i < commands.length; ++i) { |
| 95 | if (commands[i].getBuilderName().equals(builderID)) { |
| 96 | ICommand[] newCommands = new ICommand[commands.length - 1]; |
| 97 | System.arraycopy(commands, 0, newCommands, 0, i); |
| 98 | System.arraycopy(commands, i + 1, newCommands, i, commands.length - i - 1); |
| 99 | description.setBuildSpec(newCommands); |
| 100 | this.project.setDescription(description, null); |
| 101 | return; |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | } |