001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2011 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * Sonar is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 020 021 package org.sonar.squid.text; 022 023 import java.io.IOException; 024 import java.io.Reader; 025 import java.io.StringReader; 026 027 public class StringArrayReader extends Reader { 028 029 private final StringReader stringReader; 030 031 enum EndOfLineDelimiter { 032 LF, CR_PLUS_LF, CR 033 } 034 035 public StringArrayReader(String[] lines) { 036 this(lines, EndOfLineDelimiter.LF); 037 } 038 039 public StringArrayReader(String[] lines, EndOfLineDelimiter endOfLineDelimiter) { 040 if (lines == null) { 041 throw new IllegalStateException("lines object can't be null."); 042 } 043 String content = convertArrayToStringAndAppendEndOfLine(lines, endOfLineDelimiter); 044 stringReader = new StringReader(content); 045 } 046 047 private String convertArrayToStringAndAppendEndOfLine(String[] lines, EndOfLineDelimiter endOfLineDelimiter) { 048 StringBuilder content = new StringBuilder(); 049 for (int i = 0; i < lines.length; i++) { 050 content.append(lines[i]); 051 if (i != (lines.length - 1)) { 052 switch (endOfLineDelimiter) { 053 case LF: 054 content.append('\n'); 055 break; 056 case CR: 057 content.append('\r'); 058 break; 059 case CR_PLUS_LF: 060 content.append("\r\n"); 061 break; 062 default: 063 throw new IllegalStateException(); // should never happen 064 } 065 } 066 } 067 return content.toString(); 068 } 069 070 @Override 071 public void close() throws IOException { 072 stringReader.close(); 073 } 074 075 @Override 076 public boolean ready() throws IOException { 077 return stringReader.ready(); 078 } 079 080 @Override 081 public boolean markSupported() { 082 return stringReader.markSupported(); 083 } 084 085 @Override 086 public void mark(int readAheadLimit) throws IOException { 087 stringReader.mark(readAheadLimit); 088 } 089 090 @Override 091 public void reset() throws IOException { 092 stringReader.reset(); 093 } 094 095 @Override 096 public int read(char[] cbuf, int off, int len) throws IOException { 097 return stringReader.read(cbuf, off, len); 098 } 099 }