org.jpedal.utils.ObjectCloneFactory Maven / Gradle / Ivy
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2017 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* ObjectCloneFactory.java
* ---------------
*/
package org.jpedal.utils;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.WritableRaster;
import java.util.Map;
/**
* custom optimised cloning code for speed
*/
public class ObjectCloneFactory {
public static byte[] cloneArray(final byte[] array) {
if (array == null) {
return null;
}
final int count = array.length;
final byte[] returnValue = new byte[count];
System.arraycopy(array, 0, returnValue, 0, count);
return returnValue;
}
public static byte[][] cloneDoubleArray(final byte[][] byteDArray) {
if (byteDArray == null) {
return null;
} else {
final byte[][] tmp = new byte[byteDArray.length][];
for (int b = 0; b < byteDArray.length; b++) {
tmp[b] = byteDArray[b].clone();
}
return tmp;
}
}
public static BufferedImage deepCopy(final BufferedImage bi) {
if (bi == null) {
return null;
}
final ColorModel cm = bi.getColorModel();
final boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
final WritableRaster raster = bi.copyData(null);
return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
}
public static Map cloneMap(final Map optValues) {
if (optValues != null) {
try {
final Map tmpMap = optValues.getClass().newInstance();
tmpMap.putAll(optValues);
return tmpMap;
} catch (final Exception e) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
}
return null;
}
}