/*

  * Copyright 1999,2004 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.commons.feedparser.test;

 import java.lang.reflect.Method;

 import javax.xml.parsers.SAXParser;

 import javax.xml.parsers.SAXParserFactory;

 import junit.framework.TestCase;

 import org.apache.commons.feedparser.DefaultFeedParserListener;

 import org.apache.commons.feedparser.FeedParser;

 import org.apache.commons.feedparser.FeedParserException;

 import org.apache.commons.feedparser.FeedParserFactory;

 import org.apache.commons.feedparser.FeedParserListener;

 import org.apache.commons.feedparser.FeedParserState;

 import org.apache.commons.feedparser.network.ResourceRequest;

 import org.apache.commons.feedparser.network.ResourceRequestFactory;

 /**

  *

  * @author <a href="mailto:burton@peerfear.org">Kevin A. Burton</a>

  * @version $Id: TestPerformance.java 373622 2006-01-30 22:53:00Z mvdb $

  */

 public class TestPerformance extends TestCase {

     public TestPerformance( String name ) {

         super( name );

     }

     static SAXParser parser = null;

     public static void testSAX() throws Exception {

         if ( parser == null ) {

             parser = SAXParserFactory.newInstance().newSAXParser();

             //need to enable SAX2 locals and namespace

             parser.getXMLReader().setFeature( "http://xml.org/sax/features/namespaces", true );

         }

          org.apache.commons.feedparser.sax.RSSFeedParser handler =

               new org.apache.commons.feedparser.sax.RSSFeedParser();

          handler.listener = new DefaultFeedParserListener() {

                  public void onChannel( FeedParserState state,

                                         String title,

                                         String link,

                                         String description ) throws FeedParserException {

 //                      System.out.println( "onChannel: title: " + title );

                  }

                  public void onItem( FeedParserState state,

                                      String title,

                                      String link,

                                      String description,

                                      String permalink ) throws FeedParserException {

 //                     System.out.println( "onItem: title: " + title );

                  }

                  public void onItemEnd() throws FeedParserException {

 //                     System.out.println( "onItemEnd");

                  }

              };

         String resource = "file:/home/burton/index.rss";

         ResourceRequest request = ResourceRequestFactory

             .getResourceRequest( resource );

         parser.parse( request.getInputStream(), handler );

     }

     public static void testDefault() throws Exception {

         FeedParser parser = FeedParserFactory.newFeedParser();

         FeedParserListener listener = new DefaultFeedParserListener() {};

         String resource = "file:/home/burton/index.rss";

         ResourceRequest request = ResourceRequestFactory

             .getResourceRequest( resource );

         parser.parse( listener,

                       request.getInputStream(),

                       resource );

     }

     public static void main( String[] args ) throws Exception {

         TestPerformance test = new TestPerformance( null );

         //test.testGetWeblogLinkForResource();

         //test.test1();

         doTestMethod( "testSAX", TestPerformance.class, 100 );

         doTestMethod( "testDefault", TestPerformance.class, 100 );

     }

     public static void  doTestMethod( String name, Class clazz, int max ) throws Exception {

         Method method = clazz.getMethod( name, null );

         System.out.println( "Testing method: " + name );

         long duration = 0;

         for ( int i = 0; i <= max; ++i ) {

             long before = System.currentTimeMillis();

             method.invoke( null, null );

             if ( i == 0 )

                 continue; //don't measure the first call

             long after = System.currentTimeMillis();

             duration += after-before;

         }

         System.out.println( "----------------" );

         System.out.println( "Total parse count: " + max );

         System.out.println( "Total duration: " + duration + "  milliseconds" );

         float totalAvgDuration = (float)duration / (float)max;

         System.out.println( "Total avg duration: " + totalAvgDuration + "  milliseconds" );

         float totalPerSecond = 1000 / totalAvgDuration;

         System.out.println( "Total per second: " + totalPerSecond );

     }

 }