| /* |
| * 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.client; |
| |
| import com.fasterxml.jackson.annotation.JsonCreator; |
| import com.fasterxml.jackson.annotation.JsonIgnore; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSortedMap; |
| import org.apache.druid.timeline.DataSegment; |
| import org.apache.druid.timeline.SegmentId; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** |
| * An immutable collection of metadata of segments ({@link DataSegment} objects), belonging to a particular data source. |
| * |
| * @see DruidDataSource - a mutable counterpart of this class |
| */ |
| public class ImmutableDruidDataSource |
| { |
| private final String name; |
| private final ImmutableMap<String, String> properties; |
| private final ImmutableSortedMap<SegmentId, DataSegment> idToSegments; |
| private final long totalSizeOfSegments; |
| |
| /** |
| * Concurrency: idToSegments argument might be a {@link java.util.concurrent.ConcurrentMap} that is being updated |
| * concurrently while this constructor is executed. |
| */ |
| public ImmutableDruidDataSource(String name, Map<String, String> properties, Map<SegmentId, DataSegment> idToSegments) |
| { |
| this.name = Preconditions.checkNotNull(name); |
| this.properties = ImmutableMap.copyOf(properties); |
| this.idToSegments = ImmutableSortedMap.copyOf(idToSegments); |
| this.totalSizeOfSegments = idToSegments.values().stream().mapToLong(DataSegment::getSize).sum(); |
| } |
| |
| @JsonCreator |
| public ImmutableDruidDataSource( |
| @JsonProperty("name") String name, |
| @JsonProperty("properties") Map<String, String> properties, |
| @JsonProperty("segments") Collection<DataSegment> segments |
| ) |
| { |
| this.name = Preconditions.checkNotNull(name); |
| this.properties = ImmutableMap.copyOf(properties); |
| |
| final ImmutableSortedMap.Builder<SegmentId, DataSegment> idToSegmentsBuilder = ImmutableSortedMap.naturalOrder(); |
| long totalSizeOfSegments = 0; |
| for (DataSegment segment : segments) { |
| idToSegmentsBuilder.put(segment.getId(), segment); |
| totalSizeOfSegments += segment.getSize(); |
| } |
| this.idToSegments = idToSegmentsBuilder.build(); |
| this.totalSizeOfSegments = totalSizeOfSegments; |
| } |
| |
| @JsonProperty |
| public String getName() |
| { |
| return name; |
| } |
| |
| @JsonProperty |
| public Map<String, String> getProperties() |
| { |
| return properties; |
| } |
| |
| @JsonProperty |
| public Collection<DataSegment> getSegments() |
| { |
| return idToSegments.values(); |
| } |
| |
| @JsonIgnore |
| public DataSegment getSegment(SegmentId segmentId) |
| { |
| return idToSegments.get(segmentId); |
| } |
| |
| /** |
| * Returns the sum of the {@link DataSegment#getSize() sizes} of all segments in this ImmutableDruidDataSource. |
| */ |
| @JsonIgnore |
| public long getTotalSizeOfSegments() |
| { |
| return totalSizeOfSegments; |
| } |
| |
| @Override |
| public String toString() |
| { |
| // The detail of idToSegments is intentionally ignored because it is usually large |
| return "ImmutableDruidDataSource{" |
| + "name='" + name |
| + "', # of segments='" + idToSegments.size() |
| + "', properties='" + properties |
| + "'}"; |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) { |
| return true; |
| } |
| |
| if (o == null || !getClass().equals(o.getClass())) { |
| return false; |
| } |
| |
| final ImmutableDruidDataSource that = (ImmutableDruidDataSource) o; |
| if (!this.name.equals(that.name)) { |
| return false; |
| } |
| |
| if (!this.properties.equals(that.properties)) { |
| return false; |
| } |
| |
| return this.idToSegments.equals(that.idToSegments); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hash(name, properties, idToSegments); |
| } |
| } |