diff options
Diffstat (limited to 'src/main/java/com/google/gerrit/pgm/AbstractProgram.java')
-rw-r--r-- | src/main/java/com/google/gerrit/pgm/AbstractProgram.java | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/main/java/com/google/gerrit/pgm/AbstractProgram.java b/src/main/java/com/google/gerrit/pgm/AbstractProgram.java deleted file mode 100644 index e358a1054b..0000000000 --- a/src/main/java/com/google/gerrit/pgm/AbstractProgram.java +++ /dev/null @@ -1,98 +0,0 @@ -// 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; - - -import com.google.inject.Guice; -import com.google.inject.Injector; -import com.google.inject.Module; - -import org.kohsuke.args4j.CmdLineException; -import org.kohsuke.args4j.Option; - -import java.io.StringWriter; -import java.util.Collections; - -/** Base class for command line invocations of Gerrit Code Review. */ -public abstract class AbstractProgram { - private final Object sleepLock = new Object(); - private boolean running = true; - - @Option(name = "--help", usage = "display this help text", aliases = {"-h"}) - private boolean help; - - private String getName() { - String n = getClass().getName(); - int dot = n.lastIndexOf('.'); - if (0 < dot) { - n = n.substring(dot + 1); - } - return n.toLowerCase(); - } - - public final int main(final String[] argv) throws Exception { - final Injector empty = emptyInjector(); - final CmdLineParser clp = new CmdLineParser(empty, this); - try { - clp.parseArgument(argv); - } catch (CmdLineException err) { - if (!help) { - System.err.println("fatal: " + err.getMessage()); - return 1; - } - } - - if (help) { - final StringWriter msg = new StringWriter(); - msg.write(getName()); - clp.printSingleLineUsage(msg, null); - msg.write('\n'); - - msg.write('\n'); - clp.printUsage(msg, null); - msg.write('\n'); - System.err.println(msg.toString()); - return 1; - } - - return run(); - } - - private static Injector emptyInjector() { - return Guice.createInjector(Collections.<Module> emptyList()); - } - - /** Method that never returns, e.g. to keep a daemon running. */ - protected int never() { - synchronized (sleepLock) { - while (running) { - try { - sleepLock.wait(60 * 60 * 1000L); - } catch (InterruptedException e) { - continue; - } - } - return 0; - } - } - - /** - * Run this program's logic, returning the command exit status. - * <p> - * When this method completes, the JVM is terminated. To keep the JVM running, - * use {@code return never()}. - */ - public abstract int run() throws Exception; -} |