/*
* 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.action.admin.cluster.snapshots.status;
import com.google.common.collect.ImmutableMap;
import org.elasticsearch.cluster.SnapshotsInProgress.State;
import org.elasticsearch.cluster.metadata.SnapshotId;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Streamable;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentBuilderString;
import org.elasticsearch.common.xcontent.XContentFactory;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static com.google.common.collect.Sets.newHashSet;
/**
* Status of a snapshot
*/
public class SnapshotStatus implements ToXContent, Streamable {
private SnapshotId snapshotId;
private State state;
private List<SnapshotIndexShardStatus> shards;
private ImmutableMap<String, SnapshotIndexStatus> indicesStatus;
private SnapshotShardsStats shardsStats;
private SnapshotStats stats;
SnapshotStatus(SnapshotId snapshotId, State state, List<SnapshotIndexShardStatus> shards) {
this.snapshotId = snapshotId;
this.state = state;
this.shards = shards;
shardsStats = new SnapshotShardsStats(shards);
updateShardStats();
}
SnapshotStatus() {
}
/**
* Returns snapshot id
*/
public SnapshotId getSnapshotId() {
return snapshotId;
}
/**
* Returns snapshot state
*/
public State getState() {
return state;
}
/**
* Returns list of snapshot shards
*/
public List<SnapshotIndexShardStatus> getShards() {
return shards;
}
public SnapshotShardsStats getShardsStats() {
return shardsStats;
}
/**
* Returns list of snapshot indices
*/
public Map<String, SnapshotIndexStatus> getIndices() {
if (this.indicesStatus != null) {
return this.indicesStatus;
}
ImmutableMap.Builder<String, SnapshotIndexStatus> indicesStatus = ImmutableMap.builder();
Set<String> indices = newHashSet();
for (SnapshotIndexShardStatus shard : shards) {
indices.add(shard.getIndex());
}
for (String index : indices) {
List<SnapshotIndexShardStatus> shards = new ArrayList<>();
for (SnapshotIndexShardStatus shard : this.shards) {
if (shard.getIndex().equals(index)) {
shards.add(shard);
}
}
indicesStatus.put(index, new SnapshotIndexStatus(index, shards));
}
this.indicesStatus = indicesStatus.build();
return this.indicesStatus;
}
@Override
public void readFrom(StreamInput in) throws IOException {
snapshotId = SnapshotId.readSnapshotId(in);
state = State.fromValue(in.readByte());
int size = in.readVInt();
List<SnapshotIndexShardStatus> builder = new ArrayList<>();
for (int i = 0; i < size; i++) {
builder.add(SnapshotIndexShardStatus.readShardSnapshotStatus(in));
}
shards = Collections.unmodifiableList(builder);
updateShardStats();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
snapshotId.writeTo(out);
out.writeByte(state.value());
out.writeVInt(shards.size());
for (SnapshotIndexShardStatus shard : shards) {
shard.writeTo(out);
}
}
/**
* Reads snapshot status from stream input
*
* @param in stream input
* @return deserialized snapshot status
*/
public static SnapshotStatus readSnapshotStatus(StreamInput in) throws IOException {
SnapshotStatus snapshotInfo = new SnapshotStatus();
snapshotInfo.readFrom(in);
return snapshotInfo;
}
@Override
public String toString() {
try {
XContentBuilder builder = XContentFactory.jsonBuilder().prettyPrint();
builder.startObject();
toXContent(builder, EMPTY_PARAMS);
builder.endObject();
return builder.string();
} catch (IOException e) {
return "{ \"error\" : \"" + e.getMessage() + "\"}";
}
}
/**
* Returns number of files in the snapshot
*/
public SnapshotStats getStats() {
return stats;
}
static final class Fields {
static final XContentBuilderString SNAPSHOT = new XContentBuilderString("snapshot");
static final XContentBuilderString REPOSITORY = new XContentBuilderString("repository");
static final XContentBuilderString STATE = new XContentBuilderString("state");
static final XContentBuilderString INDICES = new XContentBuilderString("indices");
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(Fields.SNAPSHOT, snapshotId.getSnapshot());
builder.field(Fields.REPOSITORY, snapshotId.getRepository());
builder.field(Fields.STATE, state.name());
shardsStats.toXContent(builder, params);
stats.toXContent(builder, params);
builder.startObject(Fields.INDICES);
for (SnapshotIndexStatus indexStatus : getIndices().values()) {
indexStatus.toXContent(builder, params);
}
builder.endObject();
builder.endObject();
return builder;
}
private void updateShardStats() {
stats = new SnapshotStats();
shardsStats = new SnapshotShardsStats(shards);
for (SnapshotIndexShardStatus shard : shards) {
stats.add(shard.getStats());
}
}
}