Examples of org.apache.accumulo.core.iterators.SortedMapIterator

Package org.apache.accumulo.core.iterators

Examples of org.apache.accumulo.core.iterators.SortedMapIterator

org.apache.accumulo.core.iterators.SortedMapIterator
A simple iterator over a Java SortedMap Note that this class is intended as an in-memory replacement for RFile$Reader, so its behavior reflects the same assumptions; namely, that this iterator is not responsible for respecting the columnFamilies passed into seek(). If you want a Map-backed Iterator that returns only sought CFs, construct a new ColumnFamilySkippingIterator(new SortedMapIterator(map)). @see org.apache.accumulo.core.iterators.system.ColumnFamilySkippingIterator

    @Test
    public void testStartExclusiveEndInclusive() throws IOException {
        ColumnSliceFilter.setSlice(is, "20080202", false, "20080204", true);


        columnSliceFilter.validateOptions(is.getOptions());
        columnSliceFilter.init(new SortedMapIterator(TEST_DATA), is.getOptions(), iteratorEnvironment);
        columnSliceFilter.seek(new Range(), EMPTY_COL_FAMS, false);


        assertTrue(columnSliceFilter.hasTop());
        assertTrue(columnSliceFilter.getTopKey().equals(KEY_3));
        columnSliceFilter.next();

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    @Test
    public void testNullStart() throws IOException {
        ColumnSliceFilter.setSlice(is, null, "20080204");


        columnSliceFilter.validateOptions(is.getOptions());
        columnSliceFilter.init(new SortedMapIterator(TEST_DATA), is.getOptions(), iteratorEnvironment);
        columnSliceFilter.seek(new Range(), EMPTY_COL_FAMS, false);


        assertTrue(columnSliceFilter.hasTop());
        assertTrue(columnSliceFilter.getTopKey().equals(KEY_2));
        columnSliceFilter.next();

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    @Test
    public void testNullEnd() throws IOException {
        ColumnSliceFilter.setSlice(is, "20080202", null);


        columnSliceFilter.validateOptions(is.getOptions());
        columnSliceFilter.init(new SortedMapIterator(TEST_DATA), is.getOptions(), iteratorEnvironment);
        columnSliceFilter.seek(new Range(), EMPTY_COL_FAMS, false);


        assertTrue(columnSliceFilter.hasTop());
        assertTrue(columnSliceFilter.getTopKey().equals(KEY_2));
        columnSliceFilter.next();

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    @Test
    public void testBothNull() throws IOException {
        ColumnSliceFilter.setSlice(is, null, null);


        columnSliceFilter.validateOptions(is.getOptions());
        columnSliceFilter.init(new SortedMapIterator(TEST_DATA), is.getOptions(), iteratorEnvironment);
        columnSliceFilter.seek(new Range(), EMPTY_COL_FAMS, false);


        assertTrue(columnSliceFilter.hasTop());
        assertTrue(columnSliceFilter.getTopKey().equals(KEY_2));
        columnSliceFilter.next();

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    @Test
    public void testStartEqualToEndBothInclusive() throws IOException {
        ColumnSliceFilter.setSlice(is, "20080202", true, "20080202", true);


        columnSliceFilter.validateOptions(is.getOptions());
        columnSliceFilter.init(new SortedMapIterator(TEST_DATA), is.getOptions(), iteratorEnvironment);
        columnSliceFilter.seek(new Range(), EMPTY_COL_FAMS, false);


        assertTrue(columnSliceFilter.hasTop());
        assertTrue(columnSliceFilter.getTopKey().equals(KEY_2));
        columnSliceFilter.next();

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    TreeMap<Key,Value> tm1 = new TreeMap<Key,Value>();
    put(tm1, "r1", "cf1", "cq1", 5, "v1");
    put(tm1, "r1", "cf1", "cq3", 5, "v2");
    put(tm1, "r2", "cf1", "cq1", 5, "v3");
    
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds);
    
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
    ane(ssi, "r1", "cf1", "cq1", 5, "v1", true);

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    TreeMap<Key,Value> tm1 = new TreeMap<Key,Value>();
    put(tm1, "r1", "cf1", "cq1", 5, "v1");
    put(tm1, "r1", "cf1", "cq3", 5, "v2");
    put(tm1, "r2", "cf1", "cq1", 5, "v3");
    
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds);
    
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
    ane(ssi, "r1", "cf1", "cq1", 5, "v1", true);
    
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>();
    put(tm2, "r1", "cf1", "cq1", 5, "v4");
    put(tm2, "r1", "cf1", "cq3", 5, "v5");
    put(tm2, "r2", "cf1", "cq1", 5, "v6");
    
    SortedMapIterator smi2 = new SortedMapIterator(tm2);
    TestDataSource tds2 = new TestDataSource(smi2);
    tds.next = tds2;
    
    ane(ssi, "r1", "cf1", "cq3", 5, "v2", true);
    ane(ssi, "r2", "cf1", "cq1", 5, "v6", true);

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    put(tm1, "r1", "cf1", "cq3", 5, "v3");
    put(tm1, "r1", "cf1", "cq4", 5, "v4");
    put(tm1, "r3", "cf1", "cq1", 5, "v5");
    put(tm1, "r3", "cf1", "cq2", 5, "v6");
    
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds, true);
    
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);
    ane(ssi, "r1", "cf1", "cq1", 5, "v1", true);
    
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>(tm1);
    put(tm2, "r1", "cf1", "cq5", 5, "v7"); // should not see this because it should not switch until the row is finished
    put(tm2, "r2", "cf1", "cq1", 5, "v8"); // should see this new row after it switches
    
    // setup a new data source, but it should not switch until the current row is finished
    SortedMapIterator smi2 = new SortedMapIterator(tm2);
    TestDataSource tds2 = new TestDataSource(smi2);
    tds.next = tds2;
    
    ane(ssi, "r1", "cf1", "cq2", 5, "v2", true);
    ane(ssi, "r1", "cf1", "cq3", 5, "v3", true);

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    // ensure switch is done on initial seek
    TreeMap<Key,Value> tm1 = new TreeMap<Key,Value>();
    put(tm1, "r1", "cf1", "cq1", 5, "v1");
    put(tm1, "r1", "cf1", "cq2", 5, "v2");
    
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds, false);
    
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>();
    put(tm2, "r1", "cf1", "cq1", 6, "v3");
    put(tm2, "r1", "cf1", "cq2", 6, "v4");
    
    SortedMapIterator smi2 = new SortedMapIterator(tm2);
    TestDataSource tds2 = new TestDataSource(smi2);
    tds.next = tds2;
    
    ssi.seek(new Range(), new ArrayList<ByteSequence>(), false);

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    // esnure switchNow() works w/ deepCopy()
    TreeMap<Key,Value> tm1 = new TreeMap<Key,Value>();
    put(tm1, "r1", "cf1", "cq1", 5, "v1");
    put(tm1, "r1", "cf1", "cq2", 5, "v2");
    
    SortedMapIterator smi = new SortedMapIterator(tm1);
    TestDataSource tds = new TestDataSource(smi);
    SourceSwitchingIterator ssi = new SourceSwitchingIterator(tds, false);
    
    SortedKeyValueIterator<Key,Value> dc1 = ssi.deepCopy(null);
    
    TreeMap<Key,Value> tm2 = new TreeMap<Key,Value>();
    put(tm2, "r1", "cf1", "cq1", 6, "v3");
    put(tm2, "r2", "cf1", "cq2", 6, "v4");
    
    SortedMapIterator smi2 = new SortedMapIterator(tm2);
    TestDataSource tds2 = new TestDataSource(smi2);
    tds.setNext(tds2);
    
    ssi.switchNow();

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org.apache.accumulo.core.data.Range

org.apache.accumulo.core.iterators.AggregatingIteratorTest

org.apache.accumulo.core.iterators.ColumnFamilySkippingIteratorTest

org.apache.accumulo.core.iterators.DeletingIteratorTest

org.apache.accumulo.core.iterators.FilteringIteratorTest

org.apache.accumulo.core.iterators.IntersectingIteratorTest

org.apache.accumulo.core.iterators.IterUtilTest

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