Java Code Examples for org.apache.uima.jcas.cas.TOP#_createSearchKey

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Example 1
Source File: JCasHashMapCompareTest.java    From uima-uimaj with Apache License 2.0 4 votes vote down vote up 
private int runConCur(int numberOfThreads) throws Exception {
    final ConcurrentMap<Integer, TOP> m =
        new ConcurrentHashMap<>(200, 0.75F, numberOfThreads);
    concurrentMap = m;
    
    final int numberOfWaiters = numberOfThreads*2;
    final Object[] waiters = new Object[numberOfWaiters];
    for (int i = 0; i < numberOfWaiters; i++) {
      waiters[i] = new Object();
    }
    MultiThreadUtils.Run2isb run2isb= new MultiThreadUtils.Run2isb() {
      
      public void call(int threadNumber, int repeatNumber, StringBuilder sb) {
//        int founds = 0, puts = 0;
        for (int i = 0; i < sizeOfTest*threadNumber; i++) {
          final int key = hash(i, threadNumber) / 2;
          final Object waiter = waiters[key & (numberOfWaiters - 1)];
          TOP newFs = TOP._createSearchKey(key);
          TOP fs = m.putIfAbsent(key, newFs);
//          while (fs != null && fs._isJCasHashMapReserve()) {
//            // someone else reserved this
//
//            // wait for notify
//            synchronized (waiter) {
//              fs = m.get(key);
//              if (fs._isJCasHashMapReserve()) {
//                try {
//                  waiter.wait();
//                } catch (InterruptedException e) {
//                }
//              }
//            }
//          }
//            
////          TOP fs = m.get(key);
//          if (null == fs) {
////            puts ++;
//            TOP prev = m.put(key,  TOP._createSearchKey(key));
//            if (prev._isJCasHashMapReserve()) {
//              synchronized (waiter) {
//                waiter.notifyAll();
//              }
//            }
////              puts --;  // someone beat us 
////              founds ++;
//          }
//          
        } // end of for loop
////        System.out.println("concur Puts = " + puts + ", founds = " + founds);
      }  
    };  
    long start = System.currentTimeMillis();
    MultiThreadUtils.tstMultiThread("JCasHashMapTestCompConcur",  numberOfThreads, 10, run2isb,
        new Runnable() {
          public void run() {
            m.clear();
        }});
    System.out.format("JCasCompTest - using ConcurrentHashMap, threads = %d, time = %,f seconds%n", numberOfThreads, ((double)(System.currentTimeMillis() - start)) / 1000.d);
    return m.size();
  }