/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.harmony.nio;
import org.apache.harmony.nio.internal.nls.Messages;
/*
* Static methods. Used by io and nio packages.
*
*/
public final class Util {
// -------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------
/*
* No instance.
*/
private Util() {
super();
}
// -------------------------------------------------------------------
// Routine methods.
// -------------------------------------------------------------------
/*
* Check array bounds method for methods like doSomething(Object[], offset,
* length). Exception throws order is IndexOutOfBoundsException for negative
* index, NullPointerException for null array, IndexOutOfBoundsException for
* offset+length > array.length
*/
public static void assertArrayIndex(Object[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(boolean[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(byte[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(short[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(int[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(long[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(float[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(double[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
public static void assertArrayIndex(char[] array, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > array.length) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
/*
* Check array bounds method for methods like doSomething(Object[], offset,
* length). Exception throws order is IndexOutOfBoundsException for negative
* index, IndexOutOfBoundsException for offset+length > array.length
*/
public static void assertArrayIndex(int arrayLength, int offset, int length) {
if (offset < 0 || length < 0) {
// nio.05=Negative index specified
throw new IndexOutOfBoundsException(Messages.getString("nio.05")); //$NON-NLS-1$
}
if ((long) offset + (long) length > arrayLength) {
// nio.04=Size mismatch
throw new IndexOutOfBoundsException(Messages.getString("nio.04")); //$NON-NLS-1$
}
}
}
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