Examples with Collector org.neo4j.internal.batchimport.input.Collector used on opensource projects

Example 6 with Collector

use of org.neo4j.internal.batchimport.input.Collector in project neo4j by neo4j.

the class EncodingIdMapperTest method shouldReportCollisionsForSameInputId.

@Test
public void shouldReportCollisionsForSameInputId() {
    // GIVEN
    IdMapper mapper = mapper(new StringEncoder(), Radix.STRING, EncodingIdMapper.NO_MONITOR);
    PropertyValueLookup values = values("10", "9", "10");
    for (int i = 0; i < 3; i++) {
        mapper.put(values.lookupProperty(i, NULL), i, Group.GLOBAL);
    }
    // WHEN
    Collector collector = mock(Collector.class);
    mapper.prepare(values, collector, NONE);
    // THEN
    verify(collector).collectDuplicateNode("10", 2, Group.GLOBAL.name());
    verifyNoMoreInteractions(collector);
}

Example 7 with Collector

use of org.neo4j.internal.batchimport.input.Collector in project neo4j by neo4j.

the class EncodingIdMapperTest method shouldCopeWithCollisionsBasedOnDifferentInputIds.

@Test
public void shouldCopeWithCollisionsBasedOnDifferentInputIds() {
    // GIVEN
    EncodingIdMapper.Monitor monitor = mock(EncodingIdMapper.Monitor.class);
    Encoder encoder = mock(Encoder.class);
    when(encoder.encode(any())).thenReturn(12345L);
    IdMapper mapper = mapper(encoder, Radix.STRING, monitor);
    PropertyValueLookup ids = values("10", "9");
    for (int i = 0; i < 2; i++) {
        mapper.put(ids.lookupProperty(i, NULL), i, Group.GLOBAL);
    }
    // WHEN
    ProgressListener progress = mock(ProgressListener.class);
    Collector collector = mock(Collector.class);
    mapper.prepare(ids, collector, progress);
    // THEN
    verifyNoMoreInteractions(collector);
    verify(monitor).numberOfCollisions(2);
    assertEquals(0L, mapper.get("10", Group.GLOBAL));
    assertEquals(1L, mapper.get("9", Group.GLOBAL));
    // 7 times since SPLIT+SORT+DETECT+RESOLVE+SPLIT+SORT,DEDUPLICATE
    verify(progress, times(7)).started(anyString());
    verify(progress, times(7)).done();
}

Example 8 with Collector

use of org.neo4j.internal.batchimport.input.Collector in project neo4j by neo4j.

the class EncodingIdMapperTest method shouldCopeWithMixedActualAndAccidentalCollisions.

@Test
public void shouldCopeWithMixedActualAndAccidentalCollisions() {
    // GIVEN
    EncodingIdMapper.Monitor monitor = mock(EncodingIdMapper.Monitor.class);
    Encoder encoder = mock(Encoder.class);
    // Create these explicit instances so that we can use them in mock, even for same values
    String a = "a";
    String b = "b";
    String c = "c";
    String a2 = "a";
    String e = "e";
    String f = "f";
    when(encoder.encode(a)).thenReturn(1L);
    when(encoder.encode(b)).thenReturn(1L);
    when(encoder.encode(c)).thenReturn(3L);
    when(encoder.encode(a2)).thenReturn(1L);
    when(encoder.encode(e)).thenReturn(2L);
    when(encoder.encode(f)).thenReturn(1L);
    Group groupA = groups.getOrCreate("A");
    Group groupB = groups.getOrCreate("B");
    IdMapper mapper = mapper(encoder, Radix.STRING, monitor);
    PropertyValueLookup ids = values("a", "b", "c", "a", "e", "f");
    Group[] groups = new Group[] { groupA, groupA, groupA, groupB, groupB, groupB };
    // WHEN
    for (int i = 0; i < 6; i++) {
        mapper.put(ids.lookupProperty(i, NULL), i, groups[i]);
    }
    Collector collector = mock(Collector.class);
    mapper.prepare(ids, collector, mock(ProgressListener.class));
    // THEN
    verify(monitor).numberOfCollisions(4);
    assertEquals(0L, mapper.get(a, groupA));
    assertEquals(1L, mapper.get(b, groupA));
    assertEquals(2L, mapper.get(c, groupA));
    assertEquals(3L, mapper.get(a2, groupB));
    assertEquals(4L, mapper.get(e, groupB));
    assertEquals(5L, mapper.get(f, groupB));
}

Example 9 with Collector

use of org.neo4j.internal.batchimport.input.Collector in project neo4j by neo4j.

the class EncodingIdMapperTest method tracePageCacheAccessOnCollisions.

@Test
public void tracePageCacheAccessOnCollisions() {
    EncodingIdMapper.Monitor monitor = mock(EncodingIdMapper.Monitor.class);
    Encoder encoder = mock(Encoder.class);
    when(encoder.encode(any())).thenReturn(12345L);
    var pageCacheTracer = new DefaultPageCacheTracer();
    IdMapper mapper = mapper(encoder, Radix.STRING, monitor, pageCacheTracer);
    PropertyValueLookup ids = (nodeId, cursorContext) -> {
        cursorContext.getCursorTracer().beginPin(false, 1, null).done();
        return nodeId + "";
    };
    int expectedCollisions = 2;
    for (int i = 0; i < expectedCollisions; i++) {
        mapper.put(ids.lookupProperty(i, NULL), i, Group.GLOBAL);
    }
    ProgressListener progress = mock(ProgressListener.class);
    Collector collector = mock(Collector.class);
    mapper.prepare(ids, collector, progress);
    verifyNoMoreInteractions(collector);
    verify(monitor).numberOfCollisions(expectedCollisions);
    assertEquals(expectedCollisions, pageCacheTracer.pins());
    assertEquals(expectedCollisions, pageCacheTracer.unpins());
}