Add a command line wrapper around ExtractorFactory, mostly aimed at when debugging rather than production

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@898810 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/extractor/CommandLineTextExtractor.java

@@ -0,0 +1,55 @@
+/* ====================================================================
+   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.poi.extractor;
+
+import java.io.File;
+
+import org.apache.poi.POITextExtractor;
+
+/**
+ * A command line wrapper around {@link ExtractorFactory}, useful
+ *  for when debugging.
+ */
+public class CommandLineTextExtractor {
+   public static String DIVIDER = "=======================";
+   
+   public static void main(String[] args) throws Exception {
+      if(args.length < 1) {
+         System.err.println("Use:");
+         System.err.println("   CommandLineTextExtractor <filename> [filename] [filename]");
+         System.exit(1);
+      }
+      
+      for(int i=0; i<args.length; i++) {
+         System.out.println(DIVIDER);
+         
+         File f = new File(args[i]);
+         System.out.println(f);
+         
+         POITextExtractor extractor = 
+            ExtractorFactory.createExtractor(f);
+         POITextExtractor metadataExtractor =
+            extractor.getMetadataTextExtractor();
+         
+         System.out.println("   " + DIVIDER);
+         System.out.println(metadataExtractor.getText());
+         System.out.println("   " + DIVIDER);
+         System.out.println(extractor.getText());
+         System.out.println(DIVIDER);
+      }
+   }
+}