org.elasticsearch.gateway.TransportNodesListGatewayMetaState Maven / Gradle / Ivy
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Elasticsearch subproject :server
/*
* 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.gateway;
import org.elasticsearch.action.ActionFuture;
import org.elasticsearch.action.ActionType;
import org.elasticsearch.action.FailedNodeException;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.PlainActionFuture;
import org.elasticsearch.action.support.nodes.BaseNodeRequest;
import org.elasticsearch.action.support.nodes.BaseNodeResponse;
import org.elasticsearch.action.support.nodes.BaseNodesRequest;
import org.elasticsearch.action.support.nodes.BaseNodesResponse;
import org.elasticsearch.action.support.nodes.TransportNodesAction;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
public class TransportNodesListGatewayMetaState extends TransportNodesAction {
public static final String ACTION_NAME = "internal:gateway/local/meta_state";
public static final ActionType TYPE = new ActionType<>(ACTION_NAME, NodesGatewayMetaState::new);
private final GatewayMetaState metaState;
@Inject
public TransportNodesListGatewayMetaState(ThreadPool threadPool, ClusterService clusterService, TransportService transportService,
ActionFilters actionFilters, GatewayMetaState metaState) {
super(ACTION_NAME, threadPool, clusterService, transportService, actionFilters,
Request::new, NodeRequest::new, ThreadPool.Names.GENERIC, NodeGatewayMetaState.class);
this.metaState = metaState;
}
public ActionFuture list(String[] nodesIds, @Nullable TimeValue timeout) {
PlainActionFuture future = PlainActionFuture.newFuture();
execute(new Request(nodesIds).timeout(timeout), future);
return future;
}
@Override
protected NodeRequest newNodeRequest(Request request) {
return new NodeRequest();
}
@Override
protected NodeGatewayMetaState newNodeResponse(StreamInput in) throws IOException {
return new NodeGatewayMetaState(in);
}
@Override
protected NodesGatewayMetaState newResponse(Request request, List responses, List failures) {
return new NodesGatewayMetaState(clusterService.getClusterName(), responses, failures);
}
@Override
protected NodeGatewayMetaState nodeOperation(NodeRequest request) {
return new NodeGatewayMetaState(clusterService.localNode(), metaState.getMetaData());
}
public static class Request extends BaseNodesRequest {
public Request(StreamInput in) throws IOException {
super(in);
}
public Request(String... nodesIds) {
super(nodesIds);
}
}
public static class NodesGatewayMetaState extends BaseNodesResponse {
public NodesGatewayMetaState(StreamInput in) throws IOException {
super(in);
}
public NodesGatewayMetaState(ClusterName clusterName, List nodes, List failures) {
super(clusterName, nodes, failures);
}
@Override
protected List readNodesFrom(StreamInput in) throws IOException {
return in.readList(NodeGatewayMetaState::new);
}
@Override
protected void writeNodesTo(StreamOutput out, List nodes) throws IOException {
out.writeList(nodes);
}
}
public static class NodeRequest extends BaseNodeRequest {
NodeRequest() {}
NodeRequest(StreamInput in) throws IOException {
super(in);
}
}
public static class NodeGatewayMetaState extends BaseNodeResponse {
private MetaData metaData;
public NodeGatewayMetaState(StreamInput in) throws IOException {
super(in);
if (in.readBoolean()) {
metaData = MetaData.readFrom(in);
}
}
public NodeGatewayMetaState(DiscoveryNode node, MetaData metaData) {
super(node);
this.metaData = metaData;
}
public MetaData metaData() {
return metaData;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (metaData == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
metaData.writeTo(out);
}
}
}
}