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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * Copyright (c) 2003, 2022 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 - Initial API and implementation
 *     Christoph Läubrich - Issue #80 - CharsetManager access the ResourcesPlugin.getWorkspace before init
 *******************************************************************************/
package org.eclipse.core.internal.resources;

import org.eclipse.core.internal.utils.Policy;
import org.eclipse.core.runtime.*;
import org.eclipse.core.runtime.jobs.Job;

/**
 * Batches the activity of a job as a single operation, without obtaining the workspace
 * lock.
 */
public abstract class InternalWorkspaceJob extends Job {
	private Workspace workspace;

	public InternalWorkspaceJob(String name, Workspace workspace) {
		super(name);
		this.workspace = workspace;
	}

	@Override
	public final IStatus run(IProgressMonitor monitor) {
		monitor = Policy.monitorFor(monitor);
		try {
			int depth = -1;
			final WorkManager workManager = workspace.getWorkManager();
			try {
				workspace.prepareOperation(null, monitor);
				workspace.beginOperation(true);
				depth = workManager.beginUnprotected();
				return runInWorkspace(monitor);
			} catch (OperationCanceledException e) {
				workManager.operationCanceled();
				return Status.CANCEL_STATUS;
			} finally {
				if (depth >= 0)
					workManager.endUnprotected(depth);
				workspace.endOperation(null, false);
			}
		} catch (CoreException e) {
			return e.getStatus();
		}
	}

	protected abstract IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException;
}