Examples with CloseableIndexed org.apache.druid.segment.data.CloseableIndexed used on opensource projects

Example 1 with CloseableIndexed

use of org.apache.druid.segment.data.CloseableIndexed in project druid by druid-io.

the class QueryableIndexIndexableAdapter method getDimValueLookup.

@Nullable
@Override
public <T extends Comparable<? super T>> CloseableIndexed<T> getDimValueLookup(String dimension) {
    final ColumnHolder columnHolder = input.getColumnHolder(dimension);
    if (columnHolder == null) {
        return null;
    }
    final BaseColumn col = columnHolder.getColumn();
    if (!(col instanceof DictionaryEncodedColumn)) {
        return null;
    }
    @SuppressWarnings("unchecked") DictionaryEncodedColumn<T> dict = (DictionaryEncodedColumn<T>) col;
    return new CloseableIndexed<T>() {

        @Override
        public int size() {
            return dict.getCardinality();
        }

        @Override
        public T get(int index) {
            return dict.lookupName(index);
        }

        @Override
        public int indexOf(T value) {
            return dict.lookupId(value);
        }

        @Override
        public Iterator<T> iterator() {
            return IndexedIterable.create(this).iterator();
        }

        @Override
        public void inspectRuntimeShape(RuntimeShapeInspector inspector) {
            inspector.visit("dict", dict);
        }

        @Override
        public void close() throws IOException {
            dict.close();
        }
    };
}

Example 2 with CloseableIndexed

use of org.apache.druid.segment.data.CloseableIndexed in project druid by druid-io.

the class ColumnSelectorBitmapIndexSelector method getDimensionValues.

@Nullable
@Override
public CloseableIndexed<String> getDimensionValues(String dimension) {
    if (isVirtualColumn(dimension)) {
        BitmapIndex bitmapIndex = virtualColumns.getBitmapIndex(dimension, index);
        if (bitmapIndex == null) {
            return null;
        }
        return new CloseableIndexed<String>() {

            @Override
            public int size() {
                return bitmapIndex.getCardinality();
            }

            @Override
            public String get(int index) {
                return bitmapIndex.getValue(index);
            }

            @Override
            public int indexOf(String value) {
                return bitmapIndex.getIndex(value);
            }

            @Override
            public Iterator<String> iterator() {
                return IndexedIterable.create(this).iterator();
            }

            @Override
            public void inspectRuntimeShape(RuntimeShapeInspector inspector) {
                inspector.visit("column", bitmapIndex);
            }

            @Override
            public void close() {
            }
        };
    }
    final ColumnHolder columnHolder = index.getColumnHolder(dimension);
    if (columnHolder == null) {
        return null;
    }
    if (!columnHolder.getCapabilities().toColumnType().is(ValueType.STRING)) {
        // work correctly here until reworking is done to support filtering/indexing other types of columns
        return null;
    }
    BaseColumn col = columnHolder.getColumn();
    if (!(col instanceof DictionaryEncodedColumn)) {
        return null;
    }
    final DictionaryEncodedColumn<String> column = (DictionaryEncodedColumn<String>) col;
    return new CloseableIndexed<String>() {

        @Override
        public int size() {
            return column.getCardinality();
        }

        @Override
        public String get(int index) {
            return column.lookupName(index);
        }

        @Override
        public int indexOf(String value) {
            return column.lookupId(value);
        }

        @Override
        public Iterator<String> iterator() {
            return IndexedIterable.create(this).iterator();
        }

        @Override
        public void inspectRuntimeShape(RuntimeShapeInspector inspector) {
            inspector.visit("column", column);
        }

        @Override
        public void close() throws IOException {
            column.close();
        }
    };
}