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/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2013 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.squid.text;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
public class StringArrayReader extends Reader {
private final StringReader stringReader;
enum EndOfLineDelimiter {
LF, CR_PLUS_LF, CR
}
public StringArrayReader(String[] lines) {
this(lines, EndOfLineDelimiter.LF);
}
public StringArrayReader(String[] lines, EndOfLineDelimiter endOfLineDelimiter) {
if (lines == null) {
throw new IllegalStateException("lines object can't be null.");
}
String content = convertArrayToStringAndAppendEndOfLine(lines, endOfLineDelimiter);
stringReader = new StringReader(content);
}
private String convertArrayToStringAndAppendEndOfLine(String[] lines, EndOfLineDelimiter endOfLineDelimiter) {
StringBuilder content = new StringBuilder();
for (int i = 0; i < lines.length; i++) {
content.append(lines[i]);
if (i != (lines.length - 1)) {
switch (endOfLineDelimiter) {
case LF:
content.append('\n');
break;
case CR:
content.append('\r');
break;
case CR_PLUS_LF:
content.append("\r\n");
break;
default:
// should never happen
throw new IllegalStateException();
}
}
}
return content.toString();
}
@Override
public void close() throws IOException {
stringReader.close();
}
@Override
public boolean ready() throws IOException {
return stringReader.ready();
}
@Override
public boolean markSupported() {
return stringReader.markSupported();
}
@Override
public void mark(int readAheadLimit) throws IOException {
stringReader.mark(readAheadLimit);
}
@Override
public void reset() throws IOException {
stringReader.reset();
}
@Override
public int read(char[] cbuf, int off, int len) throws IOException {
return stringReader.read(cbuf, off, len);
}
}
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