Package org.apache.mahout.cf.taste.impl.common

Examples of org.apache.mahout.cf.taste.impl.common.LongPrimitiveIterator.nextLong()

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    }
    PreferenceArray prefArray = new BooleanItemPreferenceArray(userIDs.size());
    int i = 0;
    LongPrimitiveIterator it = userIDs.iterator();
    while (it.hasNext()) {
      prefArray.setUserID(i, it.nextLong());
      prefArray.setItemID(i, itemID);
      i++;
    }
    return prefArray;
  }
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      }

      FastByIDMap<PreferenceArray> trainingUsers = new FastByIDMap<PreferenceArray>(dataModel.getNumUsers());
      LongPrimitiveIterator it2 = dataModel.getUserIDs();
      while (it2.hasNext()) {
        dataSplitter.processOtherUser(userID, relevantItemIDs, trainingUsers, it2.nextLong(), dataModel);
      }

      DataModel trainingModel = dataModelBuilder == null ? new GenericDataModel(trainingUsers)
          : dataModelBuilder.buildDataModel(trainingUsers);
      try {
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  @Test(expected = NoSuchElementException.class)
  public void testGetItems() throws Exception {
    LongPrimitiveIterator it = model.getItemIDs();
    assertNotNull(it);
    assertTrue(it.hasNext());
    assertEquals(123, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(234, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(456, it.nextLong());
    assertTrue(it.hasNext());
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    LongPrimitiveIterator it = model.getItemIDs();
    assertNotNull(it);
    assertTrue(it.hasNext());
    assertEquals(123, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(234, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(456, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(654, it.nextLong());
    assertTrue(it.hasNext());
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    assertTrue(it.hasNext());
    assertEquals(123, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(234, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(456, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(654, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(789, it.nextLong());
    assertTrue(it.hasNext());
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    assertTrue(it.hasNext());
    assertEquals(234, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(456, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(654, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(789, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(999, it.nextLong());
    assertFalse(it.hasNext());
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    assertTrue(it.hasNext());
    assertEquals(456, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(654, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(789, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(999, it.nextLong());
    assertFalse(it.hasNext());
    it.next();
  }
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    assertTrue(it.hasNext());
    assertEquals(654, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(789, it.nextLong());
    assertTrue(it.hasNext());
    assertEquals(999, it.nextLong());
    assertFalse(it.hasNext());
    it.next();
  }

  @Test
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    try {
      buildAveragesLock.writeLock().lock();
      DataModel dataModel = getDataModel();
      LongPrimitiveIterator it = dataModel.getUserIDs();
      while (it.hasNext()) {
        long userID = it.nextLong();
        PreferenceArray prefs = dataModel.getPreferencesFromUser(userID);
        int size = prefs.length();
        for (int i = 0; i < size; i++) {
          long itemID = prefs.getItemID(i);
          float value = prefs.getValue(i);
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    while (itemIDs.hasNext()) {
      if (pos == batchSize) {
        itemIDBatches.add(batch.clone());
        pos = 0;
      }
      batch[pos] = itemIDs.nextLong();
      pos++;
    }
    int nonQueuedItemIDs = batchSize - pos;
    if (nonQueuedItemIDs > 0) {
      long[] lastBatch = new long[nonQueuedItemIDs];
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