/*
* Copyright (c) 2012, Fromentin Xavier, Schnell Michaël, Dervin Cyrielle, Brabant Quentin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The names of its contributors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Fromentin Xavier, Schnell Michaël, Dervin Cyrielle OR Brabant Quentin
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package kameleon.gui.util;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import kameleon.exception.FileReadingException;
/**
* Utility class for retrieving bytes from a given picture file.
*
* @author Schnell Michaël
* @version 1.0
*/
public class ImageUtility {
/**
* Returns an array containing all the bytes read from a given
* {@code InputStream}.
*
* @param is
* source stream for the read bytes
*
* @return Array containing all the bytes read from the given
* stream
*
* @throws FileReadingException
* if an error occurred while reading the stream
*/
public static byte[] getImageBytes(InputStream is)
throws FileReadingException {
// Read all the bytes into a buffer
ArrayList<Integer> buffer = new ArrayList<Integer>() ;
try {
int next = is.read() ;
while (next != -1) {
buffer.add(new Integer(next)) ;
next = is.read() ;
}// while
} catch (IOException e) {
throw new FileReadingException() ;
}// try
// Copy the content of the buffer into an array
byte[] imageBytes = new byte[buffer.size()] ;
int index = 0 ;
for(Integer b : buffer) {
imageBytes[index] = b.byteValue() ;
index++ ;
}// for
return imageBytes ;
}// getImagesBytes(InputStream)
/**
* Returns an array containing all the bytes read from the file
* with the given path.
*
* @param source
* absolute path of the source file
*
* @return Array containing all the bytes read from the given
* file
*
* @throws FileReadingException
* if an error occurred while reading the stream
*/
public static byte[] getImageBytes(String source)
throws FileReadingException {
try {
InputStream is = new BufferedInputStream(
new FileInputStream(source));
byte[] result = getImageBytes(is) ;
is.close() ;
return result ;
} catch (FileNotFoundException e) {
throw new FileReadingException(new File(source)) ;
} catch (IOException e) {
throw new FileReadingException(new File(source)) ;
}// try
}// getImageBytes(String)
}// class ImageUtility