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Modify the psa transport class to reduce code duplication
Signed-off-by: sudarshan baliga <[email protected]>
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server/src/main/java/org/opensearch/gateway/TransportNodesBatchListGatewayStartedShards.java
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| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
||
| /* | ||
| * 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. | ||
| */ | ||
|
|
||
| /* | ||
| * Modifications Copyright OpenSearch Contributors. See | ||
| * GitHub history for details. | ||
| */ | ||
|
|
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| package org.opensearch.gateway; | ||
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||
| import org.opensearch.OpenSearchException; | ||
| import org.opensearch.action.ActionListener; | ||
| import org.opensearch.action.ActionType; | ||
| import org.opensearch.action.FailedNodeException; | ||
| import org.opensearch.action.support.ActionFilters; | ||
| import org.opensearch.action.support.nodes.BaseNodeResponse; | ||
| import org.opensearch.action.support.nodes.BaseNodesRequest; | ||
| import org.opensearch.action.support.nodes.BaseNodesResponse; | ||
| import org.opensearch.action.support.nodes.TransportNodesAction; | ||
| import org.opensearch.cluster.ClusterName; | ||
| import org.opensearch.cluster.node.DiscoveryNode; | ||
| import org.opensearch.cluster.service.ClusterService; | ||
| import org.opensearch.common.inject.Inject; | ||
| import org.opensearch.common.io.stream.StreamInput; | ||
| import org.opensearch.common.io.stream.StreamOutput; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.core.xcontent.NamedXContentRegistry; | ||
| import org.opensearch.env.NodeEnvironment; | ||
| import org.opensearch.gateway.TransportNodesGatewayStartedShardHelper.NodeGatewayStartedShardInfo; | ||
| import org.opensearch.index.shard.ShardId; | ||
| import org.opensearch.indices.IndicesService; | ||
| import org.opensearch.threadpool.ThreadPool; | ||
| import org.opensearch.transport.TransportRequest; | ||
| import org.opensearch.transport.TransportService; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
|
|
||
| /** | ||
| * This transport action is used to fetch all unassigned shard version from each node during primary allocation in {@link GatewayAllocator}. | ||
| * We use this to find out which node holds the latest shard version and which of them used to be a primary in order to allocate | ||
| * shards after node or cluster restarts. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class TransportNodesBatchListGatewayStartedShards extends TransportNodesAction< | ||
| TransportNodesBatchListGatewayStartedShards.Request, | ||
| TransportNodesBatchListGatewayStartedShards.NodesGatewayStartedShards, | ||
| TransportNodesBatchListGatewayStartedShards.NodeRequest, | ||
| TransportNodesBatchListGatewayStartedShards.NodeGatewayStartedShardsBatch> | ||
| implements | ||
| AsyncShardsFetchPerNode.Lister< | ||
| TransportNodesBatchListGatewayStartedShards.NodesGatewayStartedShards, | ||
| TransportNodesBatchListGatewayStartedShards.NodeGatewayStartedShardsBatch> { | ||
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| public static final String ACTION_NAME = "internal:gateway/local/bulk_started_shards"; | ||
| public static final ActionType<NodesGatewayStartedShards> TYPE = new ActionType<>(ACTION_NAME, NodesGatewayStartedShards::new); | ||
|
|
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| private final Settings settings; | ||
| private final NodeEnvironment nodeEnv; | ||
| private final IndicesService indicesService; | ||
| private final NamedXContentRegistry namedXContentRegistry; | ||
|
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||
| @Inject | ||
| public TransportNodesBatchListGatewayStartedShards( | ||
| Settings settings, | ||
| ThreadPool threadPool, | ||
| ClusterService clusterService, | ||
| TransportService transportService, | ||
| ActionFilters actionFilters, | ||
| NodeEnvironment env, | ||
| IndicesService indicesService, | ||
| NamedXContentRegistry namedXContentRegistry | ||
| ) { | ||
| super( | ||
| ACTION_NAME, | ||
| threadPool, | ||
| clusterService, | ||
| transportService, | ||
| actionFilters, | ||
| Request::new, | ||
| NodeRequest::new, | ||
| ThreadPool.Names.FETCH_SHARD_STARTED, | ||
| NodeGatewayStartedShardsBatch.class | ||
| ); | ||
| this.settings = settings; | ||
| this.nodeEnv = env; | ||
| this.indicesService = indicesService; | ||
| this.namedXContentRegistry = namedXContentRegistry; | ||
| } | ||
|
|
||
| @Override | ||
| public void list(DiscoveryNode[] nodes, Map<ShardId, String> shardIdsWithCustomDataPath, ActionListener<NodesGatewayStartedShards> listener) { | ||
| execute(new Request(nodes, shardIdsWithCustomDataPath), listener); | ||
| } | ||
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| @Override | ||
| protected NodeRequest newNodeRequest(Request request) { | ||
| return new NodeRequest(request); | ||
| } | ||
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| @Override | ||
| protected NodeGatewayStartedShardsBatch newNodeResponse(StreamInput in) throws IOException { | ||
| return new NodeGatewayStartedShardsBatch(in); | ||
| } | ||
|
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| @Override | ||
| protected NodesGatewayStartedShards newResponse( | ||
| Request request, | ||
| List<NodeGatewayStartedShardsBatch> responses, | ||
| List<FailedNodeException> failures | ||
| ) { | ||
| return new NodesGatewayStartedShards(clusterService.getClusterName(), responses, failures); | ||
| } | ||
|
|
||
| /** | ||
| * This function is similar to nodeoperation method of {@link TransportNodesListGatewayStartedShards} we loop over | ||
| * the shards here to fetch the shard result in bulk. | ||
| * | ||
| * @param request | ||
| * @return NodeGatewayStartedShardsBatch | ||
| */ | ||
| @Override | ||
| protected NodeGatewayStartedShardsBatch nodeOperation(NodeRequest request) { | ||
| Map<ShardId, NodeGatewayStartedShardInfo> shardsOnNode = new HashMap<>(); | ||
| for (Map.Entry<ShardId, String> shardToCustomDataPathEntry : request.shardIdsWithCustomDataPath.entrySet()) { | ||
| final ShardId shardId = shardToCustomDataPathEntry.getKey(); | ||
| try { | ||
| final NodeGatewayStartedShardInfo nodeGatewayStartedShardInfo = TransportNodesGatewayStartedShardHelper.getShardInfoOnLocalNode( | ||
| logger, | ||
| shardId, | ||
| namedXContentRegistry, | ||
| nodeEnv, | ||
| indicesService, | ||
| shardToCustomDataPathEntry.getValue(), | ||
| settings, | ||
| clusterService | ||
| ); | ||
| shardsOnNode.put(shardId, nodeGatewayStartedShardInfo); | ||
| } catch (Exception e) { | ||
| Exception shardInfoFetchException = new OpenSearchException("failed to load started shards", e); | ||
| shardsOnNode.put(shardId, new NodeGatewayStartedShardInfo( | ||
| null, false, null, shardInfoFetchException | ||
| )); | ||
| } | ||
| } | ||
| return new NodeGatewayStartedShardsBatch(clusterService.localNode(), shardsOnNode); | ||
| } | ||
|
|
||
| /** | ||
| * The nodes request. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public static class Request extends BaseNodesRequest<Request> { | ||
| private final Map<ShardId, String> shardIdsWithCustomDataPath; | ||
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| public Request(StreamInput in) throws IOException { | ||
| super(in); | ||
| shardIdsWithCustomDataPath = in.readMap(ShardId::new, StreamInput::readString); | ||
| } | ||
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| public Request(DiscoveryNode[] nodes, Map<ShardId, String> shardIdStringMap) { | ||
| super(nodes); | ||
| this.shardIdsWithCustomDataPath = Objects.requireNonNull(shardIdStringMap); | ||
| } | ||
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| super.writeTo(out); | ||
| out.writeMap(shardIdsWithCustomDataPath, (o, k) -> k.writeTo(o), StreamOutput::writeString); | ||
| } | ||
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| public Map<ShardId, String> getShardIdsMap() { | ||
| return shardIdsWithCustomDataPath; | ||
| } | ||
| } | ||
|
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| /** | ||
| * The nodes response. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public static class NodesGatewayStartedShards extends BaseNodesResponse<NodeGatewayStartedShardsBatch> { | ||
|
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| public NodesGatewayStartedShards(StreamInput in) throws IOException { | ||
| super(in); | ||
| } | ||
|
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| public NodesGatewayStartedShards( | ||
| ClusterName clusterName, | ||
| List<NodeGatewayStartedShardsBatch> nodes, | ||
| List<FailedNodeException> failures | ||
| ) { | ||
| super(clusterName, nodes, failures); | ||
| } | ||
|
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| @Override | ||
| protected List<NodeGatewayStartedShardsBatch> readNodesFrom(StreamInput in) throws IOException { | ||
| return in.readList(NodeGatewayStartedShardsBatch::new); | ||
| } | ||
|
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| @Override | ||
| protected void writeNodesTo(StreamOutput out, List<NodeGatewayStartedShardsBatch> nodes) throws IOException { | ||
| out.writeList(nodes); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * The request. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public static class NodeRequest extends TransportRequest { | ||
|
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| private final Map<ShardId, String> shardIdsWithCustomDataPath; | ||
|
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| public NodeRequest(StreamInput in) throws IOException { | ||
| super(in); | ||
| shardIdsWithCustomDataPath = in.readMap(ShardId::new, StreamInput::readString); | ||
| } | ||
|
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| public NodeRequest(Request request) { | ||
|
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| this.shardIdsWithCustomDataPath = Objects.requireNonNull(request.getShardIdsMap()); | ||
| } | ||
|
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| super.writeTo(out); | ||
| out.writeMap(shardIdsWithCustomDataPath, (o, k) -> k.writeTo(o), StreamOutput::writeString); | ||
| } | ||
|
|
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| } | ||
|
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| public static class NodeGatewayStartedShardsBatch extends BaseNodeResponse { | ||
| private final Map<ShardId, NodeGatewayStartedShardInfo> nodeGatewayStartedShardsBatch; | ||
|
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| public Map<ShardId, NodeGatewayStartedShardInfo> getNodeGatewayStartedShardsBatch() { | ||
| return nodeGatewayStartedShardsBatch; | ||
| } | ||
|
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|
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| public NodeGatewayStartedShardsBatch(StreamInput in) throws IOException { | ||
| super(in); | ||
| this.nodeGatewayStartedShardsBatch = in.readMap(ShardId::new, NodeGatewayStartedShardInfo::new); | ||
| } | ||
|
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| super.writeTo(out); | ||
| out.writeMap(nodeGatewayStartedShardsBatch, (o, k) -> k.writeTo(o), (o, v) -> v.writeTo(o)); | ||
| } | ||
|
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| public NodeGatewayStartedShardsBatch(DiscoveryNode node, Map<ShardId, NodeGatewayStartedShardInfo> nodeGatewayStartedShardsBatch) { | ||
| super(node); | ||
| this.nodeGatewayStartedShardsBatch = nodeGatewayStartedShardsBatch; | ||
| } | ||
| } | ||
| } |
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