Package org.teiid.query.processor.relational

Source Code of org.teiid.query.processor.relational.TestSortNode

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package org.teiid.query.processor.relational;

import static org.junit.Assert.*;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.TreeSet;

import org.junit.Test;
import org.teiid.common.buffer.BlockedException;
import org.teiid.common.buffer.BufferManager;
import org.teiid.common.buffer.BufferManagerFactory;
import org.teiid.common.buffer.TupleBatch;
import org.teiid.common.buffer.TupleBuffer;
import org.teiid.common.buffer.TupleSource;
import org.teiid.common.buffer.BufferManager.TupleSourceType;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidProcessingException;
import org.teiid.core.types.DataTypeManager;
import org.teiid.language.SortSpecification.NullOrdering;
import org.teiid.query.processor.relational.SortUtility.Mode;
import org.teiid.query.sql.lang.OrderBy;
import org.teiid.query.sql.symbol.ElementSymbol;
import org.teiid.query.util.CommandContext;


public class TestSortNode {
   
    public static final int BATCH_SIZE = 100;
   
    private void helpTestSort(List elements, List[] data, List sortElements, List sortTypes, List[] expected, Mode mode) throws TeiidComponentException, TeiidProcessingException {
        BufferManager mgr = NodeTestUtil.getTestBufferManager(100, BATCH_SIZE, BATCH_SIZE);
        CommandContext context = new CommandContext ("pid", "test", null, null, 1);               //$NON-NLS-1$ //$NON-NLS-2$
       
        BlockingFakeRelationalNode dataNode = new BlockingFakeRelationalNode(2, data);
        dataNode.setReturnPeriod(3);
        dataNode.setElements(elements);
        dataNode.initialize(context, mgr, null);   
       
        SortNode sortNode = new SortNode(1);
      sortNode.setSortElements(new OrderBy(sortElements, sortTypes).getOrderByItems());
        sortNode.setMode(mode);
        sortNode.setElements(elements);
        sortNode.addChild(dataNode);       
        sortNode.initialize(context, mgr, null);   
       
        sortNode.open();
       
        int currentRow = 1;
        while(true) {
          try {
              TupleBatch batch = sortNode.nextBatch();
              if (mode != Mode.DUP_REMOVE) {
                  for(int row = currentRow; row <= batch.getEndRow(); row++) {
                      assertEquals("Rows don't match at " + row, expected[row-1], batch.getTuple(row)); //$NON-NLS-1$
                  }
              }
              currentRow += batch.getRowCount();   
              if(batch.getTerminationFlag()) {
                  break;
              }
          } catch (BlockedException e) {
           
          }
        }
        assertEquals(expected.length, currentRow - 1);
    }

    /*
     * 1 batch all in memory
     */
    private void helpTestBasicSort(List[] expected, Mode mode) throws Exception {
        ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
        es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);

        ElementSymbol es2 = new ElementSymbol("e2"); //$NON-NLS-1$
        es2.setType(DataTypeManager.DefaultDataClasses.STRING);
       
        List elements = new ArrayList();
        elements.add(es1);
        elements.add(es2);
       
        List[] data = new List[20];
        for(int i=0; i<20; i++) {
            data[i] = new ArrayList();
            data[i].add(new Integer((i*51) % 11));
           
            String str = String.valueOf(i*3);
            str = str.substring(0,1);
            data[i].add(str);             
        }
       
        List sortElements = new ArrayList();
        sortElements.add(es1);
       
        List sortTypes = new ArrayList();
        sortTypes.add(new Boolean(OrderBy.ASC));
       
        helpTestSort(elements, data, sortElements, sortTypes, expected, mode);
    }
   
    private void helpTestAllSorts(int batches) throws Exception {
        ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
        es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);

        List elements = new ArrayList();
        elements.add(es1);
       
        int rows = batches * BATCH_SIZE;

        ListNestedSortComparator<Integer> comparator = new ListNestedSortComparator<Integer>(new int[] {0}, OrderBy.DESC);

        List<Integer>[] expected = new List[rows];
        List<Integer>[] data = new List[rows];
        TreeSet<List<Integer>> distinct = new TreeSet<List<Integer>>(comparator);
        for(int i=0; i<rows; i++) {
            Integer value = new Integer((i*51) % 11);
            data[i] = Arrays.asList(value);
            expected[i] = Arrays.asList(value);
            distinct.add(Arrays.asList(value));
        }
        List[] expectedDistinct = distinct.toArray(new List[distinct.size()]);
       
        List sortElements = new ArrayList();
        sortElements.add(es1);
       
        List sortTypes = new ArrayList();
        sortTypes.add(new Boolean(OrderBy.DESC));

        Arrays.sort(expected, comparator);
       
        for (Mode mode : Mode.values()) {
        helpTestSort(elements, data, sortElements, sortTypes, mode==Mode.SORT?expected:expectedDistinct, mode);
        }
    }
   
    @Test public void testComparatorNullOrdering() {
      ListNestedSortComparator<Integer> comparator = new ListNestedSortComparator<Integer>(new int[] {0}, OrderBy.DESC);
      comparator.setNullOrdering(Arrays.asList(NullOrdering.FIRST));
      List<Integer>[] data = new List[3];
        data[0] = Arrays.asList(1);
        data[1] = Arrays.asList((Integer)null);
        data[2] = Arrays.asList(2);
        Arrays.sort(data, comparator);
        assertNull(data[0].get(0));
        comparator.setNullOrdering(Arrays.asList(NullOrdering.LAST));
        Arrays.sort(data, comparator);
        assertNull(data[2].get(0));
        comparator = new ListNestedSortComparator<Integer>(new int[] {0}, OrderBy.ASC);
        Arrays.sort(data, comparator);
        assertNull(data[0].get(0));
        comparator.setNullOrdering(Arrays.asList(NullOrdering.LAST));
        Arrays.sort(data, comparator);
        assertNull(data[2].get(0));
    }
       
    @Test public void testNoSort() throws Exception {
        helpTestAllSorts(0);
    }   
   
    @Test public void testBasicSort() throws Exception {
        List[] expected = new List[] {
            Arrays.asList(new Object[] { new Integer(0), "0" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(0), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(1), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(1), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(2), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(2), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(3), "6" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(3), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(4), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(5), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(5), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(6), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(6), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(7), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(7), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(8), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(9), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(9), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(10), "9" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(10), "4" })                //$NON-NLS-1$
        };
       
        helpTestBasicSort(expected, Mode.SORT);
    }
   
    @Test public void testDupSortDesc() throws Exception {
        List[] expected = new List[] {
            Arrays.asList(new Object[] { new Integer(0), "0" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(0), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(1), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(1), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(2), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(2), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(3), "6" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(3), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(4), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(5), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(5), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(6), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(6), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(7), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(7), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(8), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(9), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(9), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(10), "9" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(10), "4" })                //$NON-NLS-1$
        };
       
        helpTestBasicSort(expected, Mode.SORT);
    }
   
    /**
     * Note the ordering here is not stable
     * @throws Exception
     */
    @Test public void testBasicSortRemoveDup() throws Exception {
        List[] expected = new List[] {
            Arrays.asList(new Object[] { new Integer(0), "0" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(0), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(1), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(1), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(2), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(2), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(3), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(3), "6" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(4), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(5), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(5), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(6), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(6), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(7), "3" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(8), "2" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(9), "1" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(9), "5" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(10), "4" }),    //$NON-NLS-1$
            Arrays.asList(new Object[] { new Integer(10), "9" })                //$NON-NLS-1$
        };

        helpTestBasicSort(expected, Mode.DUP_REMOVE);
    }  
   
    @Test public void testBasicSortRemoveDupSort() throws Exception {
      List[] expected = new List[] {
                Arrays.asList(new Object[] { new Integer(0), "0" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(0), "3" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(1), "2" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(1), "5" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(2), "1" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(2), "4" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(3), "3" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(3), "6" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(4), "3" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(5), "2" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(5), "5" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(6), "1" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(6), "4" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(7), "3" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(8), "2" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(9), "1" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(9), "5" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(10), "4" }),    //$NON-NLS-1$
                Arrays.asList(new Object[] { new Integer(10), "9" })                //$NON-NLS-1$
            };

        helpTestBasicSort(expected, Mode.DUP_REMOVE_SORT);
    }  
   
    @Test public void testBiggerSort() throws Exception {
        helpTestAllSorts(100);
    }
    @Test public void testAllSort() throws Exception {
        helpTestAllSorts(1);
    }      
   
    @Test public void testDupRemove() throws Exception {
      ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
        es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
        BufferManager bm = BufferManagerFactory.getStandaloneBufferManager();
        TupleBuffer tsid = bm.createTupleBuffer(Arrays.asList(es1), "test", TupleSourceType.PROCESSOR); //$NON-NLS-1$
        tsid.addTuple(Arrays.asList(1));
      SortUtility su = new SortUtility(tsid.createIndexedTupleSource(), Arrays.asList(es1), Arrays.asList(Boolean.TRUE), Mode.DUP_REMOVE, bm, "test", tsid.getSchema()); //$NON-NLS-1$
      TupleBuffer out = su.sort();
      TupleSource ts = out.createIndexedTupleSource();
      assertEquals(Arrays.asList(1), ts.nextTuple());
      try {
        ts.nextTuple();
        fail();
      } catch (BlockedException e) {
       
      }
      tsid.addTuple(Arrays.asList(2));
      tsid.addTuple(Arrays.asList(3));
      su.sort();
      assertEquals(Arrays.asList(2), ts.nextTuple());
    }
   
}
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