/*
* Copyright (c) 2007-2011 by The Broad Institute of MIT and Harvard. All Rights Reserved.
*
* This software is licensed under the terms of the GNU Lesser General Public License (LGPL),
* Version 2.1 which is available at http://www.opensource.org/licenses/lgpl-2.1.php.
*
* THE SOFTWARE IS PROVIDED "AS IS." THE BROAD AND MIT MAKE NO REPRESENTATIONS OR
* WARRANTES OF ANY KIND CONCERNING THE SOFTWARE, EXPRESS OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF LATENT OR OTHER DEFECTS, WHETHER
* OR NOT DISCOVERABLE. IN NO EVENT SHALL THE BROAD OR MIT, OR THEIR RESPECTIVE
* TRUSTEES, DIRECTORS, OFFICERS, EMPLOYEES, AND AFFILIATES BE LIABLE FOR ANY DAMAGES
* OF ANY KIND, INCLUDING, WITHOUT LIMITATION, INCIDENTAL OR CONSEQUENTIAL DAMAGES,
* ECONOMIC DAMAGES OR INJURY TO PROPERTY AND LOST PROFITS, REGARDLESS OF WHETHER
* THE BROAD OR MIT SHALL BE ADVISED, SHALL HAVE OTHER REASON TO KNOW, OR IN FACT
* SHALL KNOW OF THE POSSIBILITY OF THE FOREGOING.
*/
/*
* ByteConverter.java
*
* Created on August 15, 2007, 8:48 AM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
package org.broad.igv.util;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
/**
* @author jrobinso
*/
public class ByteConverter {
public static float[] convertBytesToFloats(byte[] bytes) {
try {
int nFloats = bytes.length / (Float.SIZE / 8);
float[] floats = new float[nFloats];
DataInputStream dis = new DataInputStream(new ByteArrayInputStream(bytes));
for (int i = 0; i < nFloats; i++) {
if (dis.available() >= (Float.SIZE / 8)) {
floats[i] = dis.readFloat();
}
}
dis.close();
return floats;
} catch (IOException ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
}
public static int[] convertBytesToInts(byte[] bytes) {
try {
int nInts = bytes.length / (Integer.SIZE / 8);
int[] ints = new int[nInts];
DataInputStream dis = new DataInputStream(new ByteArrayInputStream(bytes));
for (int i = 0; i < nInts; i++) {
if (dis.available() >= (Integer.SIZE / 8)) {
ints[i] = dis.readInt();
}
}
dis.close();
return ints;
} catch (IOException ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
}
public static long[] convertBytesToLongs(byte[] bytes) {
try {
int nLongs = bytes.length / (Long.SIZE / 8);
long[] longs = new long[nLongs];
DataInputStream dis = new DataInputStream(new ByteArrayInputStream(bytes));
for (int i = 0; i < nLongs; i++) {
if (dis.available() >= (Long.SIZE / 8)) {
longs[i] = dis.readLong();
}
}
dis.close();
return longs;
} catch (IOException ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
}
/**
* Read an array of strings from the data stream. It is assumed that the file contains fixed length ascii arrays
* of nChars characters each.
*/
public static String[] convertBytesToStrings(byte[] bytes, int nChars) {
try {
int nStrings = (int) (bytes.length / (nChars * (Character.SIZE / 8)));
String[] strings = new String[nStrings];
byte[] stringBytes = new byte[nChars * (Character.SIZE / 8)];
DataInputStream dis = new DataInputStream(new ByteArrayInputStream(bytes));
for (int i = 0; i < nStrings; i++) {
if (dis.available() >= (nChars * (Character.SIZE / 8))) {
dis.read(stringBytes);
strings[i] = new String(stringBytes, "UTF-16BE").trim();
}
}
return strings;
} catch (IOException ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
}
}