Package org.apache.uima.cas.impl

Source Code of org.apache.uima.cas.impl.CasResetResizeTest

/*
* 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
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* specific language governing permissions and limitations
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*/

package org.apache.uima.cas.impl;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.apache.uima.UIMAFramework;
import org.apache.uima.analysis_engine.TaeDescription;
import org.apache.uima.analysis_engine.TextAnalysisEngine;
import org.apache.uima.cas.CAS;
import org.apache.uima.cas.Type;
import org.apache.uima.test.junit_extension.JUnitExtension;
import org.apache.uima.util.XMLInputSource;


public class CasResetResizeTest extends TestCase {

  /**
   * Constructor for CasPerformanceTuningSettingsTest.
   *
   * @param arg0
   */
  public CasResetResizeTest(String arg0) {
    super(arg0);
  }

  public void testInitialHeapSize() throws Exception {
    try {
      TaeDescription testDescriptor = UIMAFramework.getXMLParser().parseTaeDescription(
              new XMLInputSource(JUnitExtension
                      .getFile("TextAnalysisEngineImplTest/TestPrimitiveTae1.xml")));

      // check default setting
      TextAnalysisEngine taeDefault = UIMAFramework.produceTAE(testDescriptor);
      CAS cas = taeDefault.newCAS();
      int heapSize = ((CASImpl) cas).getHeap().getCurrentTempSize();
      int bufSize = ((CASImpl)cas).getHeap().heap.length;
      //System.out.println("Heap size: " + heapSize + ", buffer size: " + bufSize);      
      Assert.assertTrue(bufSize < CASImpl.DEFAULT_RESET_HEAP_SIZE);
      assertTrue(heapSize <= bufSize);
     
      //create enough annotations to exceed the DEFAULT_RESET_HEAP_SIZE
      Type annotType = cas.getTypeSystem().getType(CAS.TYPE_NAME_ANNOTATION);
      for (int i = 0; i < 2000000; i++) {
        cas.createAnnotation(annotType, i, i);
      }
     
      heapSize = ((CASImpl) cas).getHeap().getCurrentTempSize();
      bufSize = ((CASImpl)cas).getHeap().heap.length;
      //System.out.println("Heap size: " + heapSize + ", buffer size: " + bufSize);     
      assertTrue(heapSize <= bufSize);
      Assert.assertTrue(heapSize > CASImpl.DEFAULT_RESET_HEAP_SIZE);
     
      //reset the CAS - it should shrink
      cas.reset();
      heapSize = ((CASImpl) cas).getHeap().getCurrentTempSize();
      bufSize = ((CASImpl)cas).getHeap().heap.length;
      //System.out.println("Heap size: " + heapSize + ", buffer size: " + bufSize);
      assertTrue(heapSize <= bufSize);
      Assert.assertTrue(bufSize < CASImpl.DEFAULT_RESET_HEAP_SIZE);

     
      //If instead we create the annotations in smaller chunks and reset each time,
      //the CAS buffer size shouldn't grow   
      for (int j = 0; j < 10; j++) {
        for (int i = 0; i < 200000; i++) {
          cas.createAnnotation(annotType, i, i);
        }
       
        heapSize = ((CASImpl) cas).getHeap().getCurrentTempSize();
        bufSize = ((CASImpl)cas).getHeap().heap.length;
        //System.out.println("Heap size: " + heapSize + ", buffer size: " + bufSize);     
        assertTrue(heapSize <= bufSize);
        Assert.assertTrue(bufSize < CASImpl.DEFAULT_RESET_HEAP_SIZE);     
        cas.reset();
      }
 
    } catch (Exception e) {
      JUnitExtension.handleException(e);
    }
  }

}
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