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/*
* Copyright (c) 2002-2007, Marc Prud'hommeaux. All rights reserved.
*
* This software is distributable under the BSD license. See the terms of the
* BSD license in the documentation provided with this software.
*/
package jline;
import java.io.*;
import java.util.*;
/**
* <p>
* A pass-through application that sets the system input stream to a
* {@link ConsoleReader} and invokes the specified main method.
* </p>
* @author <a href="mailto:mwp1@cornell.edu">Marc Prud'hommeaux</a>
*/
public class ConsoleRunner {
public static final String property = "jline.history";
public static void main(final String[] args) throws Exception {
String historyFileName = null;
List<String> argList = new ArrayList<String>(Arrays.asList(args));
if (argList.size() == 0) {
usage();
return;
}
historyFileName = System.getProperty(ConsoleRunner.property, null);
// invoke the main() method
String mainClass = (String) argList.remove(0);
// setup the inpout stream
ConsoleReader reader = new ConsoleReader();
if (historyFileName != null) {
reader.setHistory(new History (new File
(System.getProperty("user.home"),
".jline-" + mainClass
+ "." + historyFileName + ".history")));
} else {
reader.setHistory(new History(new File
(System.getProperty("user.home"),
".jline-" + mainClass + ".history")));
}
String completors = System.getProperty
(ConsoleRunner.class.getName() + ".completors", "");
List<Completor> completorList = new ArrayList<Completor>();
for (StringTokenizer tok = new StringTokenizer(completors, ",");
tok.hasMoreTokens();) {
completorList.add
((Completor) Class.forName(tok.nextToken()).newInstance());
}
if (completorList.size() > 0) {
reader.addCompletor(new ArgumentCompletor(completorList));
}
ConsoleReaderInputStream.setIn(reader);
try {
Class.forName(mainClass).
getMethod("main", new Class[] { String[].class }).
invoke(null, new Object[] { argList.toArray(new String[0]) });
} finally {
// just in case this main method is called from another program
ConsoleReaderInputStream.restoreIn();
}
}
private static void usage() {
System.out.println("Usage: \n java " + "[-Djline.history='name'] "
+ ConsoleRunner.class.getName()
+ " <target class name> [args]"
+ "\n\nThe -Djline.history option will avoid history"
+ "\nmangling when running ConsoleRunner on the same application."
+ "\n\nargs will be passed directly to the target class name.");
}
}
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