Author: sebb
Date: Mon Mar 5 23:45:15 2012
New Revision: 1297288
URL: http://svn.apache.org/viewvc?rev=1297288&view=rev
Log:
Helper application for example classes
Added:
commons/proper/net/trunk/src/main/java/examples/Main.java (with props)
Added: commons/proper/net/trunk/src/main/java/examples/Main.java
URL:
http://svn.apache.org/viewvc/commons/proper/net/trunk/src/main/java/examples/Main.java?rev=1297288&view=auto
==============================================================================
--- commons/proper/net/trunk/src/main/java/examples/Main.java (added)
+++ commons/proper/net/trunk/src/main/java/examples/Main.java Mon Mar 5
23:45:15 2012
@@ -0,0 +1,92 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 examples;
+
+import java.lang.reflect.Method;
+import java.security.CodeSource;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+public class Main {
+
+ /**
+ * Helper application for example classes.
+ * Lists available classes, and provides shorthand invocation.
+ * For example:<br/>
+ * <code>java -jar commons-net-examples-m.n.jar FTPClientExample -l host
user password</code>
+ *
+ * @param args the first argument is used to name the class; remaining
arguments
+ * are passed to the target class.
+ * @throws Exception
+ * @throws Exception
+ */
+ public static void main(String[] args) throws Exception {
+ if (args.length==0) {
+ System.out.println("Usage: java -jar examples.jar <exampleClass>
<exampleClass parameters>");
+ }
+ CodeSource codeSource =
Main.class.getProtectionDomain().getCodeSource();
+ Map<String, String> map = new HashMap<String, String>();
+ if ( codeSource != null) {
+ final String sourceFile = codeSource.getLocation().getFile();
+ if (sourceFile.endsWith(".jar")) {
+ if (args.length==0) {
+ System.out.println("\nClasses found in the jar:");
+ }
+ JarFile jf = new JarFile(sourceFile);
+ Enumeration<JarEntry> e = jf.entries();
+ while (e.hasMoreElements()) {
+ JarEntry je = e.nextElement();
+ String name = je.getName();
+ if (!name.endsWith(".class")
+ || name.contains("$") // subclasses
+ || name .equals("examples/util/IOUtil.class") // no
main class
+ || name.equals("examples/Main.class")) {
+ continue;
+ }
+ name = name.replace(".class", "");
+ int lastSep = name.lastIndexOf('/');
+ String alias = name.substring(lastSep+1);
+ if (args.length==0) {
+ System.out.printf("%-25s %s%n",alias,name);
+ }
+ map.put(alias, name);
+ }
+ }
+ }
+
+ if (args.length==0) {
+ return;
+ }
+
+ String shortName = args[0];
+ String fullName = map.get(shortName);
+ if (fullName == null) {
+ fullName = shortName;
+ }
+ fullName = fullName.replace('/', '.');
+ Class<?> clazz = Class.forName(fullName);
+ Method m = clazz.getDeclaredMethod("main", new
Class[]{args.getClass()});
+ String[] args2 = new String[args.length-1];
+ System.arraycopy(args, 1, args2, 0, args2.length);
+ m.invoke(null, (Object)args2);
+ }
+}
Propchange: commons/proper/net/trunk/src/main/java/examples/Main.java
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Propchange: commons/proper/net/trunk/src/main/java/examples/Main.java
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svn:keywords = Author Date Id Revision
