svn commit: r803077 - /commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java

[se...@apache.org]

Author: sebb
Date: Tue Aug 11 11:51:59 2009
New Revision: 803077

URL: http://svn.apache.org/viewvc?rev=803077&view=rev
Log:
Basic test app for Jexl

Added:
    commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java   (with props)

Added: commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java
URL: http://svn.apache.org/viewvc/commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java?rev=803077&view=auto
==============================================================================
--- commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java (added)
+++ commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java Tue Aug 11 11:51:59 2009
@@ -0,0 +1,68 @@
+/*
+ * 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 org.apache.commons.jexl;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+
+import org.apache.commons.jexl.context.HashMapContext;
+
+/**
+ * Test application for Jexl
+ * TODO - needs more options to be more useful.
+ * @since 2.0
+ */
+public class Main {
+
+    /**
+     * Test application for Jexl
+     * 
+     * If a single argument is present, it is treated as a filename to be sourced.
+     * Otherwise, lines are read from standard input and evaluated.
+     * 
+     * @param args (optional) filename to evaluate. Stored in the args variable.
+     * 
+     * @throws Exception 
+     */
+    public static void main(String[] args) throws Exception {
+        JexlEngine engine = new JexlEngine();
+        JexlContext context = new HashMapContext();
+        context.getVars().put("args", args);
+        if (args.length == 1){
+            Script script = engine.createScript(new File(args[0]));
+            Object value = script.execute(context);
+            System.out.println("Return value: "+value);
+        } else {
+            BufferedReader console = new BufferedReader(new InputStreamReader(System.in));
+            String line;
+            System.out.print("> ");
+            while(null != (line=console.readLine())){
+                try {
+                    Expression expression = engine.createExpression(line);
+                    Object value = expression.evaluate(context);
+                    System.out.println("Return value: "+value);
+                    System.out.print("> ");
+                } catch (JexlException e) {
+                    System.out.println(e.getLocalizedMessage());
+                }
+            }
+        }
+    }
+}

Propchange: commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java
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Propchange: commons/proper/jexl/branches/2.0/src/main/java/org/apache/commons/jexl/Main.java
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