org.elasticsearch.action.admin.cluster.snapshots.get.shard.GetShardSnapshotRequest Maven / Gradle / Ivy
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.action.admin.cluster.snapshots.get.shard;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.support.master.MasterNodeRequest;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.index.shard.ShardId;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import static org.elasticsearch.action.ValidateActions.addValidationError;
public class GetShardSnapshotRequest extends MasterNodeRequest {
private static final String ALL_REPOSITORIES = "_all";
private final List repositories;
private final ShardId shardId;
GetShardSnapshotRequest(List repositories, ShardId shardId) {
assert repositories.isEmpty() == false;
assert repositories.stream().noneMatch(Objects::isNull);
assert repositories.size() == 1 || repositories.stream().noneMatch(repo -> repo.equals(ALL_REPOSITORIES));
this.repositories = Objects.requireNonNull(repositories);
this.shardId = Objects.requireNonNull(shardId);
}
public GetShardSnapshotRequest(StreamInput in) throws IOException {
super(in);
this.repositories = in.readStringList();
this.shardId = new ShardId(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeStringCollection(repositories);
shardId.writeTo(out);
}
public static GetShardSnapshotRequest latestSnapshotInAllRepositories(ShardId shardId) {
return new GetShardSnapshotRequest(Collections.singletonList(ALL_REPOSITORIES), shardId);
}
public static GetShardSnapshotRequest latestSnapshotInRepositories(ShardId shardId, List repositories) {
if (repositories.isEmpty()) {
throw new IllegalArgumentException("Expected at least 1 repository but got none");
}
if (repositories.stream().anyMatch(Objects::isNull)) {
throw new NullPointerException("null values are not allowed in the repository list");
}
return new GetShardSnapshotRequest(repositories, shardId);
}
@Override
public ActionRequestValidationException validate() {
ActionRequestValidationException validationException = null;
if (repositories.size() == 0) {
validationException = addValidationError("repositories are missing", validationException);
}
return validationException;
}
public boolean getFromAllRepositories() {
return repositories.size() == 1 && ALL_REPOSITORIES.equalsIgnoreCase(repositories.get(0));
}
public boolean isSingleRepositoryRequest() {
return repositories.size() == 1 && ALL_REPOSITORIES.equalsIgnoreCase(repositories.get(0)) == false;
}
public ShardId getShardId() {
return shardId;
}
public List getRepositories() {
return repositories;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
GetShardSnapshotRequest request = (GetShardSnapshotRequest) o;
return Objects.equals(repositories, request.repositories) && Objects.equals(shardId, request.shardId);
}
@Override
public int hashCode() {
return Objects.hash(repositories, shardId);
}
@Override
public String getDescription() {
final StringBuilder stringBuilder = new StringBuilder("shard").append(shardId).append(", repositories[");
Strings.collectionToDelimitedStringWithLimit(repositories, ",", "", "", 1024, stringBuilder);
stringBuilder.append("]");
return stringBuilder.toString();
}
}