org.eclipse.ajdt.internal.buildpath.UpdateInpathRestriction.java Source code

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Here is the source code for org.eclipse.ajdt.internal.buildpath.UpdateInpathRestriction.java

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/*******************************************************************************
 * Copyright (c) 2006 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:
 *     Matthew Ford - initial API and implementation
 *******************************************************************************/
package org.eclipse.ajdt.internal.buildpath;

import org.eclipse.ajdt.core.AspectJCorePreferences;
import org.eclipse.ajdt.internal.utils.AJDTUtils;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;

public class UpdateInpathRestriction extends AJBuildPathAction implements IObjectActionDelegate {

    public void run(IAction action) {
        if (project == null) {
            return;
        }
        if (cpEntry != null) {
            // update the restrictions on this classpath element
            // although the element probably already is on the aspect/in path, we can ensure it's on, just in case
            IClasspathEntry newEntry = cpEntry;
            if (shouldAskForClasspathRestrictions(cpEntry)) {
                String currRestriction = AspectJCorePreferences.getRestriction(cpEntry,
                        AspectJCorePreferences.INPATH_RESTRICTION_ATTRIBUTE_NAME);
                String restriction = askForClasspathRestrictions(newEntry, currRestriction, "In path");
                if (restriction != null) {
                    newEntry = AspectJCorePreferences.updatePathRestrictions(newEntry, restriction,
                            AspectJCorePreferences.INPATH_RESTRICTION_ATTRIBUTE_NAME);
                } else {
                    newEntry = AspectJCorePreferences.ensureHasAttribute(newEntry,
                            AspectJCorePreferences.INPATH_RESTRICTION_ATTRIBUTE_NAME, "");
                }
            }
            newEntry = AspectJCorePreferences.ensureHasAttribute(newEntry,
                    AspectJCorePreferences.INPATH_ATTRIBUTE_NAME, AspectJCorePreferences.INPATH_ATTRIBUTE_NAME);
            AspectJCorePreferences.updateClasspathEntry(project, newEntry);

        }
        AJDTUtils.refreshPackageExplorer();
    }

    public void selectionChanged(IAction action, ISelection sel) {
        boolean enable = false;
        if (sel instanceof IStructuredSelection) {
            IStructuredSelection selection = (IStructuredSelection) sel;
            Object element = selection.getFirstElement();
            try {
                if (element instanceof IPackageFragmentRoot) {
                    IPackageFragmentRoot root = (IPackageFragmentRoot) element;
                    project = root.getJavaProject().getProject();
                    cpEntry = root.getRawClasspathEntry();
                    if (cpEntry.getEntryKind() == IClasspathEntry.CPE_CONTAINER) {
                        fileName = root.getElementName();
                        enable = AspectJCorePreferences.isOnInpath(cpEntry);
                    } else {
                        fileName = null;
                        cpEntry = null;
                        project = null;
                        enable = false;
                    }
                } else {
                    enable = false;
                }
            } catch (JavaModelException e) {
            }
            action.setEnabled(enable);
        }
    }

}