| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.druid.segment.data; |
| |
| import org.apache.druid.collections.bitmap.BitmapFactory; |
| import org.apache.druid.collections.bitmap.ConciseBitmapFactory; |
| import org.apache.druid.collections.bitmap.ImmutableBitmap; |
| import org.apache.druid.collections.bitmap.WrappedImmutableConciseBitmap; |
| import org.apache.druid.extendedset.intset.ImmutableConciseSet; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| */ |
| public class ConciseBitmapSerdeFactory implements BitmapSerdeFactory |
| { |
| private static final ObjectStrategy<ImmutableBitmap> OBJECT_STRATEGY = new ImmutableConciseSetObjectStrategy(); |
| private static final BitmapFactory BITMAP_FACTORY = new ConciseBitmapFactory(); |
| |
| @Override |
| public ObjectStrategy<ImmutableBitmap> getObjectStrategy() |
| { |
| return OBJECT_STRATEGY; |
| } |
| |
| @Override |
| public BitmapFactory getBitmapFactory() |
| { |
| return BITMAP_FACTORY; |
| } |
| |
| private static class ImmutableConciseSetObjectStrategy implements ObjectStrategy<ImmutableBitmap> |
| { |
| @Override |
| public Class<ImmutableBitmap> getClazz() |
| { |
| return ImmutableBitmap.class; |
| } |
| |
| @Override |
| public WrappedImmutableConciseBitmap fromByteBuffer(ByteBuffer buffer, int numBytes) |
| { |
| buffer.limit(buffer.position() + numBytes); |
| return new WrappedImmutableConciseBitmap(new ImmutableConciseSet(buffer.asIntBuffer())); |
| } |
| |
| @Override |
| public byte[] toBytes(ImmutableBitmap val) |
| { |
| if (val == null || val.isEmpty()) { |
| return new byte[]{}; |
| } |
| return val.toBytes(); |
| } |
| |
| @Override |
| public int compare(ImmutableBitmap o1, ImmutableBitmap o2) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "ConciseBitmapSerdeFactory{}"; |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| return this == o || o instanceof ConciseBitmapSerdeFactory; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return 0; |
| } |
| } |