org.eclipse.core.internal.resources.SaveContext Maven / Gradle / Ivy

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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) 2000, 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 Corporation - initial API and implementation
 *     Christoph Läubrich - Issue #77 - SaveManager access the ResourcesPlugin.getWorkspace at init phase
 *******************************************************************************/
package org.eclipse.core.internal.resources;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ISaveContext;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;

public class SaveContext implements ISaveContext {
	protected String pluginId;
	protected int kind;
	protected boolean needDelta;
	protected boolean needSaveNumber;
	protected SafeFileTable fileTable;
	protected int previousSaveNumber;
	protected IProject project;
	private Workspace workspace;

	protected SaveContext(String pluginId, int kind, IProject project, Workspace workspace) throws CoreException {
		this.kind = kind;
		this.project = project;
		this.pluginId = pluginId;
		needDelta = false;
		needSaveNumber = false;
		this.workspace = workspace;
		fileTable = new SafeFileTable(pluginId, workspace);
		previousSaveNumber = getWorkspace().getSaveManager().getSaveNumber(pluginId);
	}

	public void commit() throws CoreException {
		if (needSaveNumber) {
			IPath oldLocation = getWorkspace().getMetaArea().getSafeTableLocationFor(pluginId);
			getWorkspace().getSaveManager().setSaveNumber(pluginId, getSaveNumber());
			fileTable.setLocation(getWorkspace().getMetaArea().getSafeTableLocationFor(pluginId));
			fileTable.save();
			oldLocation.toFile().delete();
		}
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public IPath[] getFiles() {
		return getFileTable().getFiles();
	}

	protected SafeFileTable getFileTable() {
		return fileTable;
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public int getKind() {
		return kind;
	}

	public String getPluginId() {
		return pluginId;
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public int getPreviousSaveNumber() {
		return previousSaveNumber;
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public IProject getProject() {
		return project;
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public int getSaveNumber() {
		int result = getPreviousSaveNumber() + 1;
		return result > 0 ? result : 1;
	}

	protected Workspace getWorkspace() {
		return workspace;
	}

	public boolean isDeltaNeeded() {
		return needDelta;
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public IPath lookup(IPath file) {
		return getFileTable().lookup(file);
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public void map(IPath file, IPath location) {
		getFileTable().map(file, location);
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public void needDelta() {
		needDelta = true;
	}

	/**
	 * @see ISaveContext
	 */
	@Override
	public void needSaveNumber() {
		needSaveNumber = true;
	}
}