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Glassfish example source code file (ArrayConversion.java)
The Glassfish ArrayConversion.java source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html * or packager/legal/LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package org.glassfish.admin.amx.util; import java.lang.reflect.Array; import java.util.Collections; import java.util.HashSet; import java.util.Set; /** Provides: - methods to convert arrays of primitive types to corresponding arrays of Object types - conversion to/from Set */ public final class ArrayConversion { private ArrayConversion() { // disallow instantiation } private static Object[] convert(Object simpleArray) { if (!ClassUtil.objectIsPrimitiveArray(simpleArray)) { throw new IllegalArgumentException(); } final String className = simpleArray.getClass().getName(); final Class theClass = ClassUtil.getArrayElementClass(simpleArray.getClass()); final int numItems = Array.getLength(simpleArray); final Class elementClass = ClassUtil.PrimitiveClassToObjectClass(theClass); final Object[] result = (Object[]) Array.newInstance(elementClass, numItems); for (int i = 0; i < numItems; ++i) { result[i] = Array.get(simpleArray, i); } return (result); } /** Convert an an array of primitive types to an array of Objects of non-primitive types eg int to Integer. @param array the array to convert */ public static Object[] toAppropriateType(Object array) { return convert(array); } public static Boolean[] toBooleans(boolean[] array) { return ((Boolean[]) convert(array)); } public static Character[] toCharacters(char[] array) { return ((Character[]) convert(array)); } public static Byte[] toBytes(byte[] array) { return ((Byte[]) convert(array)); } public static Short[] toShorts(short[] array) { return ((Short[]) convert(array)); } public static Integer[] toIntegers(int[] array) { return ((Integer[]) convert(array)); } public static Long[] toLongs(long[] array) { return ((Long[]) convert(array)); } public static Float[] toFloats(float[] array) { return ((Float[]) convert(array)); } public static Double[] toDoubles(double[] array) { return ((Double[]) convert(array)); } /** Create an array whose type is elementType[] of specified size. @param elementType the type of each entry of the array @param size the number of elements */ public static Object[] createObjectArrayType(final Class elementType, final int size) { final Object[] result = (Object[]) Array.newInstance(elementType, size); return (result); } public static Object[] subArray(final Object[] in, int start, int end) { final int count = 1 + (end - start); final Object[] result = (Object[]) Array.newInstance(ClassUtil.getArrayElementClass(in.getClass()), count); for (int i = 0; i < count; ++i) { result[i] = in[i + start]; } return (result); } public static <T> Set Other Glassfish examples (source code examples)Here is a short list of links related to this Glassfish ArrayConversion.java source code file: |
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