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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.shard;
import com.carrotsearch.hppc.ObjectLongHashMap;
import com.carrotsearch.hppc.ObjectLongMap;
import com.carrotsearch.hppc.cursors.ObjectLongCursor;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import java.io.IOException;
/**
* Represents the sequence number component of the primary context. This is the knowledge on the primary of the in-sync and initializing
* shards and their local checkpoints.
*/
public class PrimaryContext implements Writeable {
private long clusterStateVersion;
public long clusterStateVersion() {
return clusterStateVersion;
}
private ObjectLongMap<String> inSyncLocalCheckpoints;
public ObjectLongMap<String> inSyncLocalCheckpoints() {
return inSyncLocalCheckpoints;
}
private ObjectLongMap<String> trackingLocalCheckpoints;
public ObjectLongMap<String> trackingLocalCheckpoints() {
return trackingLocalCheckpoints;
}
public PrimaryContext(
final long clusterStateVersion,
final ObjectLongMap<String> inSyncLocalCheckpoints,
final ObjectLongMap<String> trackingLocalCheckpoints) {
this.clusterStateVersion = clusterStateVersion;
this.inSyncLocalCheckpoints = inSyncLocalCheckpoints;
this.trackingLocalCheckpoints = trackingLocalCheckpoints;
}
public PrimaryContext(final StreamInput in) throws IOException {
clusterStateVersion = in.readVLong();
inSyncLocalCheckpoints = readMap(in);
trackingLocalCheckpoints = readMap(in);
}
private static ObjectLongMap<String> readMap(final StreamInput in) throws IOException {
final int length = in.readVInt();
final ObjectLongMap<String> map = new ObjectLongHashMap<>(length);
for (int i = 0; i < length; i++) {
final String key = in.readString();
final long value = in.readZLong();
map.addTo(key, value);
}
return map;
}
@Override
public void writeTo(final StreamOutput out) throws IOException {
out.writeVLong(clusterStateVersion);
writeMap(out, inSyncLocalCheckpoints);
writeMap(out, trackingLocalCheckpoints);
}
private static void writeMap(final StreamOutput out, final ObjectLongMap<String> map) throws IOException {
out.writeVInt(map.size());
for (ObjectLongCursor<String> cursor : map) {
out.writeString(cursor.key);
out.writeZLong(cursor.value);
}
}
@Override
public String toString() {
return "PrimaryContext{" +
"clusterStateVersion=" + clusterStateVersion +
", inSyncLocalCheckpoints=" + inSyncLocalCheckpoints +
", trackingLocalCheckpoints=" + trackingLocalCheckpoints +
'}';
}
}
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