| // Copyright (C) 2009 The Android Open Source Project |
| // |
| // 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.google.gerrit.pgm.util; |
| |
| import static java.util.concurrent.TimeUnit.HOURS; |
| |
| import com.google.gerrit.extensions.events.LifecycleListener; |
| import com.google.gerrit.lifecycle.LifecycleModule; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.gerrit.server.git.GarbageCollection; |
| import com.google.gerrit.server.git.WorkQueue; |
| import com.google.inject.Inject; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.zip.GZIPOutputStream; |
| |
| /** Compresses the old error logs. */ |
| public class LogFileCompressor implements Runnable { |
| private static final Logger log = |
| LoggerFactory.getLogger(LogFileCompressor.class); |
| |
| public static class Module extends LifecycleModule { |
| @Override |
| protected void configure() { |
| listener().to(Lifecycle.class); |
| } |
| } |
| |
| static class Lifecycle implements LifecycleListener { |
| private final WorkQueue queue; |
| private final LogFileCompressor compresser; |
| |
| @Inject |
| Lifecycle(final WorkQueue queue, final LogFileCompressor compressor) { |
| this.queue = queue; |
| this.compresser = compressor; |
| } |
| |
| @Override |
| public void start() { |
| queue.getDefaultQueue().scheduleWithFixedDelay(compresser, 1, 24, HOURS); |
| } |
| |
| @Override |
| public void stop() { |
| } |
| } |
| |
| private final File logs_dir; |
| |
| @Inject |
| LogFileCompressor(final SitePaths site) { |
| logs_dir = resolve(site.logs_dir); |
| } |
| |
| private static File resolve(final File logs_dir) { |
| try { |
| return logs_dir.getCanonicalFile(); |
| } catch (IOException e) { |
| return logs_dir.getAbsoluteFile(); |
| } |
| } |
| |
| @Override |
| public void run() { |
| final File[] list = logs_dir.listFiles(); |
| if (list == null) { |
| return; |
| } |
| |
| for (final File entry : list) { |
| if (!isLive(entry) && !isCompressed(entry) && isLogFile(entry)) { |
| compress(entry); |
| } |
| } |
| } |
| |
| private boolean isLive(final File entry) { |
| final String name = entry.getName(); |
| return ErrorLogFile.LOG_NAME.equals(name) // |
| || GarbageCollection.LOG_NAME.equals(name) // |
| || "sshd_log".equals(name) // |
| || "httpd_log".equals(name) // |
| || "gerrit.run".equals(name) // |
| || name.endsWith(".pid"); |
| } |
| |
| private boolean isCompressed(final File entry) { |
| final String name = entry.getName(); |
| return name.endsWith(".gz") // |
| || name.endsWith(".zip") // |
| || name.endsWith(".bz2"); |
| } |
| |
| private boolean isLogFile(final File entry) { |
| return entry.isFile(); |
| } |
| |
| private void compress(final File src) { |
| final File dir = src.getParentFile(); |
| final File dst = new File(dir, src.getName() + ".gz"); |
| final File tmp = new File(dir, ".tmp." + src.getName()); |
| try { |
| final InputStream in = new FileInputStream(src); |
| try { |
| OutputStream out = new GZIPOutputStream(new FileOutputStream(tmp)); |
| try { |
| final byte[] buf = new byte[2048]; |
| int n; |
| while (0 < (n = in.read(buf))) { |
| out.write(buf, 0, n); |
| } |
| } finally { |
| out.close(); |
| } |
| tmp.setReadOnly(); |
| } finally { |
| in.close(); |
| } |
| if (!tmp.renameTo(dst)) { |
| throw new IOException("Cannot rename " + tmp + " to " + dst); |
| } |
| src.delete(); |
| } catch (IOException e) { |
| log.error("Cannot compress " + src, e); |
| tmp.delete(); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "Log File Compressor"; |
| } |
| } |