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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.remoteServer.agent.util.log;
import com.intellij.remoteServer.agent.util.ILogger;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
/**
* @author michael.golubev
*/
public abstract class LogPipe {
private final ILogger myLog;
private final String myDeploymentName;
private boolean myClosed;
private int myTotalLines;
private int myLines2Skip;
public LogPipe(String deploymentName, ILogger log) {
myDeploymentName = deploymentName;
myLog = log;
myClosed = false;
}
public void open() {
InputStream inputStream = createInputStream(myDeploymentName);
if (inputStream == null) {
return;
}
InputStreamReader streamReader = new InputStreamReader(inputStream);
final BufferedReader bufferedReader = new BufferedReader(streamReader);
myTotalLines = 0;
myLines2Skip = 0;
new Thread() {
@Override
public void run() {
try {
while (true) {
String line = bufferedReader.readLine();
if (myClosed) {
myLog.debug("log pipe closed for: " + myDeploymentName);
break;
}
if (line == null) {
myLog.debug("end of log stream for: " + myDeploymentName);
break;
}
if (myLines2Skip == 0) {
getLogListener().lineLogged(line);
myTotalLines++;
}
else {
myLines2Skip--;
}
}
}
catch (IOException e) {
myLog.errorEx(e);
}
}
}.start();
}
public void close() {
myClosed = true;
}
protected final void cutTail() {
myLines2Skip = myTotalLines;
}
protected final boolean isClosed() {
return myClosed;
}
protected abstract InputStream createInputStream(String deploymentName);
protected abstract LogListener getLogListener();
}
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