/
ConsoleLogParserImpl.java
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/
ConsoleLogParserImpl.java
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/*
* The MIT License
*
* Copyright (c) 2013 Steven G. Brown
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.plugins.timestamper.annotator;
import hudson.model.Run;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.annotation.concurrent.Immutable;
/**
* Implementation of ConsoleLogParser.
*
* @author Steven G. Brown
*/
@Immutable
class ConsoleLogParserImpl implements ConsoleLogParser {
private static final long serialVersionUID = 1L;
private final long pos;
/**
* Create a new {@link ConsoleLogParserImpl}.
*
* @param pos
* the position to find in the console log file. A non-negative
* position is from the start of the file, and a negative position is
* back from the end of the file.
*/
ConsoleLogParserImpl(long pos) {
this.pos = pos;
}
/**
* {@inheritDoc}
*/
@Override
public ConsoleLogParser.Result seek(Run<?, ?> build) throws IOException {
ConsoleLogParser.Result result = new ConsoleLogParser.Result();
result.atNewLine = true;
try (InputStream inputStream = new BufferedInputStream(build.getLogInputStream())) {
long posFromStart = pos;
if (pos < 0) {
posFromStart = build.getLogText().length() + pos;
}
for (long i = 0; i < posFromStart; i++) {
int value = inputStream.read();
if (value == -1) {
result.endOfFile = true;
break;
}
result.atNewLine = value == 0x0A;
if (result.atNewLine) {
result.lineNumber++;
}
}
}
return result;
}
}