Copyright (c) 2011, 2013 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
/*******************************************************************************
 * Copyright (c) 2011, 2013 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
 *******************************************************************************/
package org.eclipse.jdt.internal.core.index;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;

public class FileIndexLocation extends IndexLocation {
	File indexFile;

	public FileIndexLocation(File file) {
		super(file);
		this.indexFile = file;
	}

	public FileIndexLocation(URL url, File file) {
		super(url);
		this.indexFile = file;
	}

	public FileIndexLocation(File file, boolean participantIndex) {
		this(file);
		this.participantIndex = true;
	}

	@Override
	public boolean createNewFile() throws IOException {
		File directory = this.indexFile.getParentFile();
		if (directory != null && !directory.exists()) {
			directory.mkdirs();
		}
		// always call File#createNewFile() so that the IOException is thrown if there is a failure
		return this.indexFile.createNewFile();
	}

	@Override
	public boolean delete() {
		return this.indexFile.delete();
	}

	@Override
	public boolean equals(Object other) {
		if (!(other instanceof FileIndexLocation)) return false;
		return this.indexFile.equals(((FileIndexLocation) other).indexFile);
	}

	@Override
	public boolean exists() {
		return this.indexFile.exists();
	}

	@Override
	public String fileName() {
		return this.indexFile.getName();
	}
	
	@Override
	public File getIndexFile() {
		return this.indexFile;
	}

	@Override
	InputStream getInputStream() throws IOException {
		return new FileInputStream(this.indexFile);
	}

	@Override
	public String getCanonicalFilePath() {
		try {
			return this.indexFile.getCanonicalPath();
		} catch (IOException e) {
			// ignore
		}
		return null;
	}

	@Override
	public int hashCode() {
		return this.indexFile.hashCode();
	}

	@Override
	public long lastModified() {
		return this.indexFile.lastModified();
	}

	@Override
	public long length() {
		return this.indexFile.length();
	}

	@Override
	public boolean startsWith(IPath path) {
		try {
			return path.isPrefixOf(new Path(this.indexFile.getCanonicalPath()));
		} catch (IOException e) {
			return false;
		}
	}

}