| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.start; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.PrintStream; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.StandardOpenOption; |
| import java.util.Date; |
| |
| import org.eclipse.jetty.start.config.CommandLineConfigSource; |
| |
| /** |
| * Centralized Place for logging. |
| * <p> |
| * Because startup cannot rely on Jetty's Logging, an alternative logging is established. |
| * <p> |
| * Optional behavior is to create a ${jetty.base}/logs/start.log with whatever output the startup process produces. |
| */ |
| public class StartLog |
| { |
| private final static PrintStream stdout = System.out; |
| private final static PrintStream stderr = System.err; |
| private static volatile PrintStream out = System.out; |
| private static volatile PrintStream err = System.err; |
| private final static StartLog INSTANCE = new StartLog(); |
| |
| public static void debug(String format, Object... args) |
| { |
| if (INSTANCE.debug) |
| { |
| out.printf(format + "%n",args); |
| } |
| } |
| |
| public static void trace(String format, Object... args) |
| { |
| if (INSTANCE.trace) |
| { |
| out.printf("TRACE: " + format + "%n",args); |
| } |
| } |
| |
| public static void debug(Throwable t) |
| { |
| if (INSTANCE.debug) |
| { |
| t.printStackTrace(out); |
| } |
| } |
| |
| public static StartLog getInstance() |
| { |
| return INSTANCE; |
| } |
| |
| public static void log(String type, String msg) |
| { |
| err.println(type + ": " + msg); |
| } |
| |
| public static void log(String type, String format, Object... args) |
| { |
| err.printf(type + ": " + format + "%n",args); |
| } |
| |
| public static void info(String format, Object... args) |
| { |
| log("INFO",format,args); |
| } |
| |
| public static void warn(String format, Object... args) |
| { |
| log("WARNING",format,args); |
| } |
| |
| public static void warn(Throwable t) |
| { |
| t.printStackTrace(err); |
| } |
| |
| public static boolean isDebugEnabled() |
| { |
| return INSTANCE.debug; |
| } |
| |
| private boolean trace = false; |
| private boolean debug = false; |
| |
| public void initialize(BaseHome baseHome, CommandLineConfigSource cmdLineSource) throws IOException |
| { |
| String dbgProp = cmdLineSource.getProperty("debug"); |
| if (dbgProp != null) |
| { |
| debug = Boolean.parseBoolean(dbgProp); |
| } |
| |
| String logFileName = cmdLineSource.getProperty("start-log-file"); |
| |
| for (RawArgs.Entry arg : cmdLineSource.getArgs()) |
| { |
| if ("--debug".equals(arg.getLine())) |
| { |
| debug = true; |
| continue; |
| } |
| |
| if (arg.startsWith("--start-log-file")) |
| { |
| logFileName = Props.getValue(arg.getLine()); |
| continue; |
| } |
| } |
| |
| if (logFileName != null) |
| { |
| Path logfile = baseHome.getPath(logFileName); |
| logfile = logfile.toAbsolutePath(); |
| initLogFile(logfile); |
| } |
| } |
| |
| public void initLogFile(Path logfile) throws IOException |
| { |
| if (logfile != null) |
| { |
| try |
| { |
| Path logDir = logfile.getParent(); |
| FS.ensureDirectoryWritable(logDir); |
| |
| Path startLog = logfile; |
| |
| if (!FS.exists(startLog) && !FS.createNewFile(startLog)) |
| { |
| // Output about error is lost in majority of cases. |
| throw new UsageException(UsageException.ERR_LOGGING,new IOException("Unable to create: " + startLog.toAbsolutePath())); |
| } |
| |
| if (!FS.canWrite(startLog)) |
| { |
| // Output about error is lost in majority of cases. |
| throw new UsageException(UsageException.ERR_LOGGING,new IOException("Unable to write to: " + startLog.toAbsolutePath())); |
| } |
| |
| err.println("StartLog to " + logfile); |
| OutputStream fileout = Files.newOutputStream(startLog,StandardOpenOption.CREATE,StandardOpenOption.APPEND); |
| PrintStream logger = new PrintStream(fileout); |
| out=logger; |
| err=logger; |
| System.setErr(logger); |
| System.setOut(logger); |
| err.println("StartLog Establishing " + logfile + " on " + new Date()); |
| } |
| catch (IOException e) |
| { |
| throw new UsageException(UsageException.ERR_LOGGING,e); |
| } |
| } |
| } |
| |
| public static void enableDebug() |
| { |
| getInstance().debug = true; |
| } |
| |
| public static void endStartLog() |
| { |
| if (stderr!=err && getInstance().debug) |
| { |
| err.println("StartLog ended"); |
| stderr.println("StartLog ended"); |
| } |
| System.setErr(stderr); |
| System.setOut(stdout); |
| } |
| } |