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From jdil...@apache.org
Subject svn commit: r405303 - in /geronimo/sandbox/gshell/trunk: gshell-commands/standard-commands/src/main/java/org/apache/geronimo/gshell/commands/standard/ gshell-commands/standard-commands/src/main/resources/META-INF/org.apache.geronimo.gshell/ gshell-core...
Date Tue, 09 May 2006 04:55:41 GMT
Author: jdillon
Date: Mon May  8 21:55:39 2006
New Revision: 405303

URL: http://svn.apache.org/viewcvs?rev=405303&view=rev
Log:
 Added simple command to execute a static method on a class


Added:
    geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/java/org/apache/geronimo/gshell/commands/standard/JavaCommand.java
Modified:
    geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/resources/META-INF/org.apache.geronimo.gshell/components.xml
    geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/GShellImpl.java

Added: geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/java/org/apache/geronimo/gshell/commands/standard/JavaCommand.java
URL: http://svn.apache.org/viewcvs/geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/java/org/apache/geronimo/gshell/commands/standard/JavaCommand.java?rev=405303&view=auto
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/java/org/apache/geronimo/gshell/commands/standard/JavaCommand.java
(added)
+++ geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/java/org/apache/geronimo/gshell/commands/standard/JavaCommand.java
Mon May  8 21:55:39 2006
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2006 The Apache Software Foundation
+ *
+ * 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 org.apache.geronimo.gshell.commands.standard;
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.OptionBuilder;
+import org.apache.commons.cli.PosixParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.HelpFormatter;
+
+import org.apache.geronimo.gshell.command.Command;
+import org.apache.geronimo.gshell.command.CommandSupport;
+import org.apache.geronimo.gshell.console.IO;
+
+import java.lang.reflect.Method;
+import java.util.Arrays;
+
+/**
+ * ???
+ *
+ * @version $Id: EchoCommand.java 399599 2006-05-04 08:13:57Z jdillon $
+ */
+public class JavaCommand
+    extends CommandSupport
+{
+    private String methodName = "main";
+
+    public JavaCommand() {
+        super("java");
+    }
+
+    protected int doExecute(final String[] args) throws Exception {
+        assert args != null;
+
+        //
+        // TODO: Optimize, move common code to CommandSupport
+        //
+
+        IO io = getIO();
+
+        Options options = new Options();
+
+        options.addOption(OptionBuilder.withLongOpt("help")
+            .withDescription("Display this help message")
+            .create('h'));
+
+        options.addOption(OptionBuilder.withLongOpt("method")
+            .withDescription("Invoke a named method")
+            .withArgName("method")
+            .create('M'));
+
+        CommandLineParser parser = new PosixParser();
+        CommandLine line = parser.parse(options, args);
+
+        if (line.hasOption('h')) {
+            io.out.println("java -- execute a java application");
+            io.out.println();
+
+            HelpFormatter formatter = new HelpFormatter();
+            formatter.printHelp(
+                io.out,
+                80, // width (FIXME: Should pull from gshell.columns variable)
+                "java [options] <classname> [arguments]",
+                "",
+                options,
+                4, // left pad
+                4, // desc pad
+                "",
+                false); // auto usage
+
+            io.out.println();
+
+            return Command.SUCCESS;
+        }
+
+        if (line.hasOption('M')) {
+            methodName = line.getOptionValue('M');
+        }
+
+        run(line.getArgs());
+
+        return Command.SUCCESS;
+    }
+
+    private void run(final String[] args) throws Exception {
+        assert args != null;
+
+        if (args.length == 0) {
+            //
+            // TODO: Error show usage
+            //
+            throw new Exception("Missing classname");
+        }
+
+        run(args[0], shift(args));
+    }
+
+    private void run(final String classname, final String[] args) throws Exception {
+        assert classname != null;
+        assert args != null;
+
+        Class type = Thread.currentThread().getContextClassLoader().loadClass(classname);
+        log.info("Using type: " + type);
+
+        Method method = type.getMethod(methodName, new Class[] { String[].class });
+        log.info("Using method: " + method);
+
+        log.info("Invoking w/arguments: " + Arrays.asList(args));
+        Object result = method.invoke(null, args);
+
+        log.info("Result: " + result);
+    }
+
+    //
+    // Misc
+    //
+
+    public static String[] shift(final String[] args) {
+        return shift(args, 1);
+    }
+
+    public static String[] shift(final String[] args, int pos) {
+        assert args.length >= pos;
+
+        String[] _args = new String[args.length - pos];
+        System.arraycopy(args, pos, _args, 0, _args.length);
+        return _args;
+    }
+}

Modified: geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/resources/META-INF/org.apache.geronimo.gshell/components.xml
URL: http://svn.apache.org/viewcvs/geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/resources/META-INF/org.apache.geronimo.gshell/components.xml?rev=405303&r1=405302&r2=405303&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/resources/META-INF/org.apache.geronimo.gshell/components.xml
(original)
+++ geronimo/sandbox/gshell/trunk/gshell-commands/standard-commands/src/main/resources/META-INF/org.apache.geronimo.gshell/components.xml
Mon May  8 21:55:39 2006
@@ -4,6 +4,7 @@
 <!-- $Id -->
 
 <beans>
+
     <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
     </bean>
     
@@ -14,4 +15,8 @@
     <bean id="cat" class="org.apache.geronimo.gshell.commands.standard.CatCommand" singleton="false">
         <property name="name" value="cat"/>
     </bean>
+
+    <bean id="java" class="org.apache.geronimo.gshell.commands.standard.JavaCommand" singleton="false">
+    </bean>
+
 </beans>

Modified: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/GShellImpl.java
URL: http://svn.apache.org/viewcvs/geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/GShellImpl.java?rev=405303&r1=405302&r2=405303&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/GShellImpl.java
(original)
+++ geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/GShellImpl.java
Mon May  8 21:55:39 2006
@@ -33,7 +33,7 @@
  *
  * @version $Id$
  */
-class GShellImpl
+public class GShellImpl
     implements ApplicationContextAware
 {
     private static final Log log = LogFactory.getLog(GShell.class);
@@ -102,11 +102,11 @@
     // Misc
     //
     
-    private String[] shift(final String[] args) {
+    public static String[] shift(final String[] args) {
         return shift(args, 1);
     }
     
-    private String[] shift(final String[] args, int pos) {
+    public static String[] shift(final String[] args, int pos) {
         assert args.length >= pos;
         
         String[] _args = new String[args.length - pos];



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