| /* |
| * 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.felix.ipojo.junit4osgi.plugin; |
| |
| import java.io.OutputStream; |
| import java.io.Serializable; |
| |
| /** |
| * Provides an OutputStream to an internal String. Internally converts bytes to |
| * a Strings and stores them in an internal StringBuffer. |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class StringOutputStream extends OutputStream implements Serializable { |
| |
| /** |
| * Id. |
| */ |
| private static final long serialVersionUID = -5912060965986156224L; |
| |
| /** |
| * The internal destination StringBuffer. |
| */ |
| protected StringBuffer m_buffer = null; |
| |
| /** |
| * Creates new StringOutputStream, makes a new internal StringBuffer. |
| */ |
| public StringOutputStream() { |
| super(); |
| m_buffer = new StringBuffer(); |
| } |
| |
| /** |
| * Returns the content of the internal StringBuffer as a String, the result |
| * of all writing to this OutputStream. |
| * |
| * @return returns the content of the internal StringBuffer |
| */ |
| public String toString() { |
| return m_buffer.toString(); |
| } |
| |
| /** |
| * Sets the internal StringBuffer to null. |
| */ |
| public void close() { |
| m_buffer = null; |
| |
| } |
| |
| /** |
| * Writes and appends a byte array to StringOutputStream. |
| * |
| * @param b the byte array |
| * @param off the byte array starting index |
| * @param len the number of bytes from byte array to write to the stream |
| */ |
| public void write(byte[] b, int off, int len) { |
| if ((off < 0) || (len < 0) || (off + len) > b.length) { |
| throw new IndexOutOfBoundsException( |
| "StringOutputStream.write: Parameters out of bounds."); |
| } |
| byte[] bytes = new byte[len]; |
| for (int i = 0; i < len; i++) { |
| bytes[i] = b[off]; |
| off++; |
| } |
| m_buffer.append(toCharArray(bytes)); |
| } |
| |
| /** |
| * Writes and appends a single byte to StringOutputStream. |
| * |
| * @param b the byte as an int to add |
| */ |
| public void write(int b) { |
| m_buffer.append((char) b); |
| } |
| |
| /** |
| * Writes and appends a String to StringOutputStream. |
| * |
| * @param s the String to add |
| */ |
| public void write(String s) { |
| m_buffer.append(s); |
| } |
| |
| /** |
| * Converts byte array to char array. |
| * @param barr input byte array |
| * @return the char array corresponding to the |
| * given byte array |
| */ |
| public static char[] toCharArray(byte[] barr) { |
| if (barr == null) { |
| return null; |
| } |
| char[] carr = new char[barr.length]; |
| for (int i = 0; i < barr.length; i++) { |
| carr[i] = (char) barr[i]; |
| } |
| return carr; |
| } |
| } |