1adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/* 2adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * this work for additional information regarding copyright ownership. 5adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * (the "License"); you may not use this file except in compliance with 7adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the License. You may obtain a copy of the License at 8adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 9adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 11adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * See the License for the specific language governing permissions and 15adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * limitations under the License. 16adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 17adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 18adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpackage java.io; 19adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 20adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/** 21adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * A specialized {@link Writer} that writes to a file in the file system. 22adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * All write requests made by calling methods in this class are directly 23adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * forwarded to the equivalent function of the underlying operating system. 24adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Since this may induce some performance penalty, in particular if many small 25adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * write requests are made, a FileWriter is often wrapped by a 26adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * BufferedWriter. 27f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 28adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @see BufferedWriter 29adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @see FileReader 30adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 31adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpublic class FileWriter extends OutputStreamWriter { 32adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 33adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 34adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Creates a FileWriter using the File {@code file}. 35f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 36adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param file 37adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the non-null File to write bytes to. 38adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 39adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if {@code file} cannot be opened for writing. 40adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 41adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public FileWriter(File file) throws IOException { 42adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project super(new FileOutputStream(file)); 43adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 44adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 45adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 46adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Creates a FileWriter using the File {@code file}. The parameter 47adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * {@code append} determines whether or not the file is opened and appended 48adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * to or just opened and overwritten. 49f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 50adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param file 51adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the non-null File to write bytes to. 52adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param append 53adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * indicates whether or not to append to an existing file. 54adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 55adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the {@code file} cannot be opened for writing. 56adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 57adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public FileWriter(File file, boolean append) throws IOException { 58adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project super(new FileOutputStream(file, append)); 59adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 60adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 61adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 62adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Creates a FileWriter using the existing FileDescriptor {@code fd}. 63f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 64adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param fd 65adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the non-null FileDescriptor to write bytes to. 66adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 67adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public FileWriter(FileDescriptor fd) { 68adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project super(new FileOutputStream(fd)); 69adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 70adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 71adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 72adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Creates a FileWriter using the platform dependent {@code filename}. 73f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 74adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param filename 75adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the non-null name of the file to write bytes to. 76adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 77adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the file cannot be opened for writing. 78adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 79adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public FileWriter(String filename) throws IOException { 80adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project super(new FileOutputStream(new File(filename))); 81adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 82adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 83adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 84adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Creates a FileWriter using the platform dependent {@code filename}. The 85adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * parameter {@code append} determines whether or not the file is opened and 86adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * appended to or just opened and overwritten. 87f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 88adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param filename 89adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the non-null name of the file to write bytes to. 90adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param append 91adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * indicates whether or not to append to an existing file. 92adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 93adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the {@code file} cannot be opened for writing. 94adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 95adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public FileWriter(String filename, boolean append) throws IOException { 96adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project super(new FileOutputStream(filename, append)); 97adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 98adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project} 99