001/*
002Copyright (c) 2011+, HL7, Inc
003All rights reserved.
004
005Redistribution and use in source and binary forms, with or without modification, 
006are permitted provided that the following conditions are met:
007
008 * Redistributions of source code must retain the above copyright notice, this 
009   list of conditions and the following disclaimer.
010 * Redistributions in binary form must reproduce the above copyright notice, 
011   this list of conditions and the following disclaimer in the documentation 
012   and/or other materials provided with the distribution.
013 * Neither the name of HL7 nor the names of its contributors may be used to 
014   endorse or promote products derived from this software without specific 
015   prior written permission.
016
017THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
018ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
019WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
020IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
021INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
022NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
023PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
024WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
025ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
026POSSIBILITY OF SUCH DAMAGE.
027
028 */
029package org.hl7.fhir.utilities;
030
031/*
032 * #%L
033 * HAPI FHIR - Core Library
034 * %%
035 * Copyright (C) 2014 - 2017 University Health Network
036 * %%
037 * Licensed under the Apache License, Version 2.0 (the "License");
038 * you may not use this file except in compliance with the License.
039 * You may obtain a copy of the License at
040 * 
041 *      http://www.apache.org/licenses/LICENSE-2.0
042 * 
043 * Unless required by applicable law or agreed to in writing, software
044 * distributed under the License is distributed on an "AS IS" BASIS,
045 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
046 * See the License for the specific language governing permissions and
047 * limitations under the License.
048 * #L%
049 */
050
051
052import java.io.*;
053import java.util.ArrayList;
054import java.util.List;
055
056/**
057 * Set of static helper functions to read lines from files, create files from lists of lines,
058 * read files into a single string and create files from a single string.
059 * @author Ewout
060 *
061 */
062public class TextFile {
063
064        public static List<String> readAllLines(String path) throws IOException
065        {
066                List<String> result = new ArrayList<String>();
067
068                File file = new CSFile(path);
069                BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"));
070
071                while( reader.ready() )
072                        result.add(reader.readLine());
073
074                reader.close();
075                return result;
076        }
077
078        public static void writeAllLines(String path, List<String> lines) throws IOException
079        {
080                File file = new CSFile(path);
081                FileOutputStream s = new FileOutputStream(file);
082                OutputStreamWriter sw = new OutputStreamWriter(s, "UTF-8");
083                for( String line : lines )
084                        sw.write(line + "\r\n");
085
086                sw.flush();
087                s.close();
088        }
089
090
091        public static void stringToFile(String content, String path) throws IOException  {
092                File file = new CSFile(path);
093                OutputStreamWriter sw = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
094                sw.write('\ufeff');  // Unicode BOM, translates to UTF-8 with the configured outputstreamwriter
095                sw.write(content);
096                sw.flush();
097                sw.close();
098        }
099
100        public static void stringToFileNoPrefix(String content, String path) throws IOException  {
101                File file = new CSFile(path);
102                OutputStreamWriter sw = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
103                sw.write(content);
104                sw.flush();
105                sw.close();
106        }
107
108        public static String fileToString(String src) throws FileNotFoundException, IOException  {
109                //FIXME resource leak
110                return streamToString(new FileInputStream(new CSFile(src)));
111        }
112
113        public static String streamToString(InputStream input) throws IOException  {
114                InputStreamReader sr = new InputStreamReader(input, "UTF-8");    
115                StringBuilder b = new StringBuilder();
116                //while (sr.ready()) { Commented out by Claude Nanjo (1/14/2014) - sr.ready() always returns false - please remove if change does not impact other areas of codebase
117                int i = -1;
118                while((i = sr.read()) > -1) {
119                        char c = (char) i;
120                        b.append(c);
121                }
122                //    sr.close();
123
124                return  b.toString().replace("\uFEFF", ""); 
125        }
126
127        public static void bytesToFile(byte[] bytes, String path) throws IOException {
128                File file = new CSFile(path);
129                OutputStream sw = new FileOutputStream(file);
130                sw.write(bytes);
131                sw.flush();
132                sw.close();
133
134        }
135}