org.eclipse.core.internal.resources.MarkerSnapshotReader 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, 2016 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
 *     Mickael Istria (Red Hat Inc.) - Bug 488937
 *******************************************************************************/
package org.eclipse.core.internal.resources;

import java.io.DataInputStream;
import java.io.IOException;
import org.eclipse.core.internal.utils.Messages;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.osgi.util.NLS;

public class MarkerSnapshotReader {
	protected Workspace workspace;

	public MarkerSnapshotReader(Workspace workspace) {
		super();
		this.workspace = workspace;
	}

	/**
	 * Returns the appropriate reader for the given version.
	 */
	protected MarkerSnapshotReader getReader(int formatVersion) throws IOException {
		switch (formatVersion) {
			case 1 :
				return new MarkerSnapshotReader_1(workspace);
			case 2 :
				return new MarkerSnapshotReader_2(workspace);
			default :
				throw new IOException(NLS.bind(Messages.resources_format, formatVersion));
		}
	}

	public void read(DataInputStream input) throws IOException, CoreException {
		int formatVersion = readVersionNumber(input);
		MarkerSnapshotReader reader = getReader(formatVersion);
		reader.read(input);
	}

	protected static int readVersionNumber(DataInputStream input) throws IOException {
		return input.readInt();
	}
}