001 /* 002 * Copyright 2005,2009 Ivan SZKIBA 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 package org.ini4j; 017 018 import org.ini4j.spi.OptionsBuilder; 019 import org.ini4j.spi.OptionsFormatter; 020 import org.ini4j.spi.OptionsHandler; 021 import org.ini4j.spi.OptionsParser; 022 023 import java.io.File; 024 import java.io.FileNotFoundException; 025 import java.io.FileOutputStream; 026 import java.io.IOException; 027 import java.io.InputStream; 028 import java.io.InputStreamReader; 029 import java.io.OutputStream; 030 import java.io.OutputStreamWriter; 031 import java.io.Reader; 032 import java.io.Writer; 033 034 import java.net.URL; 035 036 public class Options extends BasicOptionMap implements Persistable, Configurable 037 { 038 private static final long serialVersionUID = -1119753444859181822L; 039 private String _comment; 040 private Config _config; 041 private File _file; 042 043 public Options() 044 { 045 _config = Config.getGlobal().clone(); 046 _config.setEmptyOption(true); 047 } 048 049 public Options(Reader input) throws IOException, InvalidFileFormatException 050 { 051 this(); 052 load(input); 053 } 054 055 public Options(InputStream input) throws IOException, InvalidFileFormatException 056 { 057 this(); 058 load(input); 059 } 060 061 public Options(URL input) throws IOException, InvalidFileFormatException 062 { 063 this(); 064 load(input); 065 } 066 067 public Options(File input) throws IOException, InvalidFileFormatException 068 { 069 this(); 070 _file = input; 071 load(); 072 } 073 074 public String getComment() 075 { 076 return _comment; 077 } 078 079 public void setComment(String value) 080 { 081 _comment = value; 082 } 083 084 @Override public Config getConfig() 085 { 086 return _config; 087 } 088 089 @Override public void setConfig(Config value) 090 { 091 _config = value; 092 } 093 094 @Override public File getFile() 095 { 096 return _file; 097 } 098 099 @Override public void setFile(File value) 100 { 101 _file = value; 102 } 103 104 @Override public void load() throws IOException, InvalidFileFormatException 105 { 106 if (_file == null) 107 { 108 throw new FileNotFoundException(); 109 } 110 111 load(_file); 112 } 113 114 @Override public void load(InputStream input) throws IOException, InvalidFileFormatException 115 { 116 load(new InputStreamReader(input, getConfig().getFileEncoding())); 117 } 118 119 @Override public void load(Reader input) throws IOException, InvalidFileFormatException 120 { 121 OptionsParser.newInstance(getConfig()).parse(input, newBuilder()); 122 } 123 124 @Override public void load(URL input) throws IOException, InvalidFileFormatException 125 { 126 OptionsParser.newInstance(getConfig()).parse(input, newBuilder()); 127 } 128 129 @Override public void load(File input) throws IOException, InvalidFileFormatException 130 { 131 load(input.toURI().toURL()); 132 } 133 134 @Override public void store() throws IOException 135 { 136 if (_file == null) 137 { 138 throw new FileNotFoundException(); 139 } 140 141 store(_file); 142 } 143 144 @Override public void store(OutputStream output) throws IOException 145 { 146 store(new OutputStreamWriter(output, getConfig().getFileEncoding())); 147 } 148 149 @Override public void store(Writer output) throws IOException 150 { 151 store(OptionsFormatter.newInstance(output, getConfig())); 152 } 153 154 @Override public void store(File output) throws IOException 155 { 156 OutputStream stream = new FileOutputStream(output); 157 158 store(stream); 159 stream.close(); 160 } 161 162 protected OptionsHandler newBuilder() 163 { 164 return OptionsBuilder.newInstance(this); 165 } 166 167 protected void store(OptionsHandler formatter) throws IOException 168 { 169 formatter.startOptions(); 170 storeComment(formatter, _comment); 171 for (String name : keySet()) 172 { 173 storeComment(formatter, getComment(name)); 174 int n = getConfig().isMultiOption() ? length(name) : 1; 175 176 for (int i = 0; i < n; i++) 177 { 178 String value = get(name, i); 179 180 formatter.handleOption(name, value); 181 } 182 } 183 184 formatter.endOptions(); 185 } 186 187 @Override boolean isPropertyFirstUpper() 188 { 189 return getConfig().isPropertyFirstUpper(); 190 } 191 192 private void storeComment(OptionsHandler formatter, String comment) 193 { 194 if ((comment != null) && (comment.length() != 0)) 195 { 196 formatter.handleComment(comment); 197 } 198 } 199 }