com.intuit.karate.FileLogAppender Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright 2018 Intuit Inc.
*
* 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 com.intuit.karate;
import java.io.File;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
/**
*
* @author pthomas3
*/
public class FileLogAppender implements LogAppender {
private final FileChannel file;
private final Logger logger;
private int prevPos;
public FileLogAppender(String tempFilePath, Logger logger) {
this.logger = logger;
try {
if (tempFilePath == null) {
File temp = File.createTempFile("karate", "tmp");
tempFilePath = temp.getPath();
}
RandomAccessFile raf = new RandomAccessFile(tempFilePath, "rw");
file = raf.getChannel();
prevPos = (int) file.position();
} catch (Exception e) {
throw new RuntimeException(e);
}
logger.setLogAppender(this);
}
@Override
public String collect() {
try {
int pos = (int) file.position();
ByteBuffer buf = ByteBuffer.allocate(pos - prevPos);
file.read(buf, prevPos);
prevPos = pos;
buf.flip();
return FileUtils.toString(buf.array());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public void append(String text) {
try {
file.write(ByteBuffer.wrap(text.getBytes(FileUtils.UTF8)));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public void close() {
try {
file.close();
} catch (Exception e) {
logger.warn("log appender close failed: {}", e.getMessage());
}
}
}