| /******************************************************************************* |
| * 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; |
| |
| /** |
| * This class is used to read markers from disk. Subclasses implement |
| * version specific reading code. |
| */ |
| public class MarkerReader { |
| protected Workspace workspace; |
| |
| public MarkerReader(Workspace workspace) { |
| super(); |
| this.workspace = workspace; |
| } |
| |
| /** |
| * Returns the appropriate reader for the given version. |
| */ |
| protected MarkerReader getReader(int formatVersion) throws IOException { |
| switch (formatVersion) { |
| case 1 : |
| return new MarkerReader_1(workspace); |
| case 2 : |
| return new MarkerReader_2(workspace); |
| case 3 : |
| return new MarkerReader_3(workspace); |
| default : |
| throw new IOException(NLS.bind(Messages.resources_format, formatVersion)); |
| } |
| } |
| |
| public void read(DataInputStream input, boolean generateDeltas) throws IOException, CoreException { |
| int formatVersion = readVersionNumber(input); |
| MarkerReader reader = getReader(formatVersion); |
| reader.read(input, generateDeltas); |
| } |
| |
| protected static int readVersionNumber(DataInputStream input) throws IOException { |
| return input.readInt(); |
| } |
| } |