components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/FileUtil.java
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
*/
package com.oracle.solaris.vp.util.misc;
import java.io.*;
import java.security.*;
public class FileUtil {
public static byte[] getHash(String file, String algorithm)
throws IOException, NoSuchAlgorithmException {
FileInputStream in = null;
try {
MessageDigest digest = MessageDigest.getInstance(algorithm);
in = new FileInputStream(file);
byte[] buffer = new byte[1024];
int n;
while ((n = in.read(buffer, 0, buffer.length)) != -1) {
digest.update(buffer, 0, n);
}
return digest.digest();
} finally {
IOUtil.closeIgnore(in);
}
}
}