1 /* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5 /* 6 * Copyright 2001-2004 The Apache Software Foundation. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 /* 21 * $Id: WriterOutputBuffer.java,v 1.2.4.1 2005/09/06 11:43:01 pvedula Exp $ 22 */ 23 24 package com.sun.org.apache.xalan.internal.xsltc.runtime.output; 25 26 import com.sun.org.apache.xalan.internal.utils.SecuritySupport; 27 import java.io.BufferedWriter; 28 import java.io.IOException; 29 import java.io.Writer; 30 31 /** 32 * @author Santiago Pericas-Geertsen 33 */ 34 class WriterOutputBuffer implements OutputBuffer { 35 private static final int KB = 1024; 36 private static int BUFFER_SIZE = 4 * KB; 37 38 static { 39 // Set a larger buffer size for Solaris 40 final String osName = SecuritySupport.getSystemProperty("os.name"); 41 if (osName.equalsIgnoreCase("solaris")) { 42 BUFFER_SIZE = 32 * KB; 43 } 44 } 45 46 private Writer _writer; 47 48 /** 49 * Initializes a WriterOutputBuffer by creating an instance of a 50 * BufferedWriter. The size of the buffer in this writer may have 51 * a significant impact on throughput. Solaris prefers a larger 52 * buffer, while Linux works better with a smaller one. 53 */ WriterOutputBuffer(Writer writer)54 public WriterOutputBuffer(Writer writer) { 55 _writer = new BufferedWriter(writer, BUFFER_SIZE); 56 } 57 close()58 public String close() { 59 try { 60 _writer.flush(); 61 } 62 catch (IOException e) { 63 throw new RuntimeException(e.toString()); 64 } 65 return ""; 66 } 67 append(String s)68 public OutputBuffer append(String s) { 69 try { 70 _writer.write(s); 71 } 72 catch (IOException e) { 73 throw new RuntimeException(e.toString()); 74 } 75 return this; 76 } 77 append(char[] s, int from, int to)78 public OutputBuffer append(char[] s, int from, int to) { 79 try { 80 _writer.write(s, from, to); 81 } 82 catch (IOException e) { 83 throw new RuntimeException(e.toString()); 84 } 85 return this; 86 } 87 append(char ch)88 public OutputBuffer append(char ch) { 89 try { 90 _writer.write(ch); 91 } 92 catch (IOException e) { 93 throw new RuntimeException(e.toString()); 94 } 95 return this; 96 } 97 } 98