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authortknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>2013-01-09 15:41:29 +0000
committertknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>2013-01-09 15:41:29 +0000
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@@ -1,148 +0,0 @@
-/**
- * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
- * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
- * joint initiative of the Federal Chancellery Austria and Graz University of
- * Technology.
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://www.osor.eu/eupl/
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- *
- * This product combines work with different licenses. See the "NOTICE" text
- * file for details on the various modules and licenses.
- * The "NOTICE" text file is part of the distribution. Any derivative works
- * that you distribute must include a readable copy of the "NOTICE" text file.
- *
- * $Id: ByteArrayUtils.java,v 1.1 2006/08/25 17:00:59 wprinz Exp $
- */
-package at.knowcenter.wag.exactparser;
-
-import java.io.UnsupportedEncodingException;
-
-/**
- * Abstract class that contains utility methods for handling byte arrays.
- *
- * @author wprinz
- */
-public abstract class ByteArrayUtils {
-
- public static final String BYTE_ARRAY_ENCODING = "ISO-8859-1";
-
- /**
- * Converts the byte array to a String.
- *
- * @param data
- * The byte array.
- * @return Returns the String.
- * @throws UnsupportedEncodingException
- * Forwarded exception
- */
- public static String convertByteArrayToString(final byte[] data) throws UnsupportedEncodingException {
- return new String(data, BYTE_ARRAY_ENCODING);
- }
-
- /**
- * Finds the first occurance of search in data starting to search from the
- * given index.
- *
- * @param data
- * The big array.
- * @param index
- * The index to start searching from.
- * @param search
- * The sought array.
- * @return Returns the index of the found occurence or -1 if nothing was
- * found.
- */
- public static int indexOf(final byte[] data, final int index, final byte[] search) {
- for (int i = index; i <= data.length - search.length; i++) {
- if (compareByteArrays(data, i, search)) {
- return i;
- }
- }
- return -1;
- }
-
- /**
- * Finds the last occurance of the array.
- *
- * @param data
- * The source array to be searched.
- * @param search
- * The sought array.
- * @return Returns the index of the last occurance - or -1 if nothing was
- * found.
- */
- public static int lastIndexOf(final byte[] data, byte[] search) {
- for (int index = data.length - search.length; index >= 0; index--) {
- if (compareByteArrays(data, index, search)) {
- return index;
- }
- }
- return -1;
- }
-
- /**
- * Compares the two byte arrays for equality.
- *
- * @param data
- * The source array.
- * @param index
- * In index into the source array marking where the comparison should
- * start.
- * @param search
- * The sought array.
- * @return Returns true if the first search.length bytes of data+index and
- * search match exactly. Returns false otherwise.
- */
- public static boolean compareByteArrays(final byte[] data, final int index, byte[] search) {
- if (index < 0 || index >= data.length) {
- throw new IndexOutOfBoundsException("The index " + index + " is out of bounds");
- }
-
- if (search.length > data.length) {
- return false;
- }
-
- if (search.length > data.length - index) {
- return false;
- }
-
- for (int i = 0; i < search.length; i++) {
- if (data[index + i] != search[i]) {
- return false;
- }
- }
-
- return true;
- }
-
- /**
- * Checks, if the sought data byte is contained within the byte array.
- *
- * @param byte_array
- * The byte array.
- * @param data
- * A data byte sought within the byte array.
- * @return Returns true, if the data byte was found (at least once) in the
- * byte array, false otherwise.
- */
- public static boolean contains(final byte[] byte_array, final byte data) {
- for (int i = 0; i < byte_array.length; i++) {
- byte b = byte_array[i];
- if (b == data) {
- return true;
- }
- }
- return false;
- }
-
-}