/*
 * 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.cocoon.xml;

import java.io.ByteArrayInputStream;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.apache.cocoon.xml.dom.DOMBuilder;
import org.xml.sax.ContentHandler;
import org.xml.sax.helpers.DefaultHandler;

/**
 * Testcase for SaxBuffer
 *
 * @author <a href="mailto:tcurdt@apache.org">Torsten Curdt</a>
 * @version
 */

public final class SaxBufferTestCase extends AbstractXMLTestCase {
    public SaxBufferTestCase(String s) {
        super(s);
    }

    public void testCompareDOM() throws Exception {
        DOMBuilder in = new DOMBuilder();
        generateLargeSAX(in);

        SaxBuffer sb = new SaxBuffer();
        generateLargeSAX(sb);

        DOMBuilder out = new DOMBuilder();
        sb.toSAX(out);

        assertXMLEqual(in.getDocument(), out.getDocument());
    }

    public void testStressLoop() throws Exception {
        SaxBuffer sb = new SaxBuffer();

        long loop = 10000;

        // simply consume documents
        long start = System.currentTimeMillis();
        for(int i=0;i<loop;i++) {
            generateSmallSAX(sb);
            sb.recycle();
        }
        long stop = System.currentTimeMillis() + 1;

        double r = 1000*loop/(stop-start);
        System.out.println("consuming: "+ r + " documents per second");
    }

    public void testCompareToParsing() throws Exception {
        DOMBuilder in = new DOMBuilder();
        generateSmallSAX(in);

        SAXParserFactory pfactory = SAXParserFactory.newInstance();
        SAXParser p = pfactory.newSAXParser();


        SaxBuffer b = new SaxBuffer();
        DefaultHandlerWrapper wrapper = new DefaultHandlerWrapper(b);
        ByteArrayInputStream bis = new ByteArrayInputStream(generateByteArray());

        long loop = 10000;

        long start = System.currentTimeMillis();
        for(int i=0;i<loop;i++) {
            b.recycle();
            bis.reset();
            p.parse(bis,wrapper);
        }
        long stop = System.currentTimeMillis() + 1;

        double r = 1000*loop/(stop-start);
        System.out.println("parsed:" + r + " documents per second");


        ContentHandler ch = new DefaultHandler();

        start = System.currentTimeMillis();
        for(int i=0;i<loop;i++) {
            b.toSAX(ch);
        }
        stop = System.currentTimeMillis() + 1;

        r = 1000*loop/(stop-start);
        System.out.println("recalling: " + r + " documents per second");
    }


}