+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Mathieu Baudier
- *
- * Licensed 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.argeo;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.Reader;
-import java.io.Writer;
-
-/** Utilities to be used when APache COmmons IO is not available. */
-public class StreamUtils {
- private static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
-
- /*
- * APACHE COMMONS IO (inspired)
- */
-
- /** @return the number of bytes */
- public static Long copy(InputStream in, OutputStream out)
- throws IOException {
- Long count = 0l;
- byte[] buf = new byte[DEFAULT_BUFFER_SIZE];
- while (true) {
- int length = in.read(buf);
- if (length < 0)
- break;
- out.write(buf, 0, length);
- count = count + length;
- }
- return count;
- }
-
- /** @return the number of chars */
- public static Long copy(Reader in, Writer out) throws IOException {
- Long count = 0l;
- char[] buf = new char[DEFAULT_BUFFER_SIZE];
- while (true) {
- int length = in.read(buf);
- if (length < 0)
- break;
- out.write(buf, 0, length);
- count = count + length;
- }
- return count;
- }
-
- public static void closeQuietly(InputStream in) {
- if (in != null)
- try {
- in.close();
- } catch (Exception e) {
- //
- }
- }
-
- public static void closeQuietly(OutputStream out) {
- if (out != null)
- try {
- out.close();
- } catch (Exception e) {
- //
- }
- }
-
- public static void closeQuietly(Reader in) {
- if (in != null)
- try {
- in.close();
- } catch (Exception e) {
- //
- }
- }
-
- public static void closeQuietly(Writer out) {
- if (out != null)
- try {
- out.close();
- } catch (Exception e) {
- //
- }
- }
-
- /*
- * APACHE COMMONS CODEC (forked)
- */
- /**
- * Used to build output as Hex
- */
- private static final char[] DIGITS_LOWER = { '0', '1', '2', '3', '4', '5',
- '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
-
- /**
- * Used to build output as Hex
- */
- private static final char[] DIGITS_UPPER = { '0', '1', '2', '3', '4', '5',
- '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
-
- /**
- * Converts an array of bytes into a String representing the hexadecimal
- * values of each byte in order. The returned String will be double the
- * length of the passed array, as it takes two characters to represent any
- * given byte.
- *
- * @param data
- * a byte[] to convert to Hex characters
- * @return A String containing hexadecimal characters
- * @since 1.4
- */
- public static String encodeHexString(byte[] data) {
- return new String(encodeHex(data));
- }
-
- /**
- * Converts an array of bytes into an array of characters representing the
- * hexadecimal values of each byte in order. The returned array will be
- * double the length of the passed array, as it takes two characters to
- * represent any given byte.
- *
- * @param data
- * a byte[] to convert to Hex characters
- * @return A char[] containing hexadecimal characters
- */
- public static char[] encodeHex(byte[] data) {
- return encodeHex(data, true);
- }
-
- /**
- * Converts an array of bytes into an array of characters representing the
- * hexadecimal values of each byte in order. The returned array will be
- * double the length of the passed array, as it takes two characters to
- * represent any given byte.
- *
- * @param data
- * a byte[] to convert to Hex characters
- * @param toLowerCase
- * <code>true</code> converts to lowercase, <code>false</code> to
- * uppercase
- * @return A char[] containing hexadecimal characters
- * @since 1.4
- */
- public static char[] encodeHex(byte[] data, boolean toLowerCase) {
- return encodeHex(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
- }
-
- /**
- * Converts an array of bytes into an array of characters representing the
- * hexadecimal values of each byte in order. The returned array will be
- * double the length of the passed array, as it takes two characters to
- * represent any given byte.
- *
- * @param data
- * a byte[] to convert to Hex characters
- * @param toDigits
- * the output alphabet
- * @return A char[] containing hexadecimal characters
- * @since 1.4
- */
- protected static char[] encodeHex(byte[] data, char[] toDigits) {
- int l = data.length;
- char[] out = new char[l << 1];
- // two characters form the hex value.
- for (int i = 0, j = 0; i < l; i++) {
- out[j++] = toDigits[(0xF0 & data[i]) >>> 4];
- out[j++] = toDigits[0x0F & data[i]];
- }
- return out;
- }
-
-}
projects / lgpl / argeo-commons.git / blobdiff