1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
* 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.percolate;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.ShardOperationFailedException;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.get.TransportGetAction;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.DefaultShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.BroadcastShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.TransportBroadcastAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.routing.GroupShardsIterator;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.engine.DocumentMissingException;
import org.elasticsearch.percolator.PercolateException;
import org.elasticsearch.percolator.PercolatorService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicReferenceArray;
/**
*
*/
public class TransportPercolateAction extends TransportBroadcastAction<PercolateRequest, PercolateResponse, PercolateShardRequest, PercolateShardResponse> {
private final PercolatorService percolatorService;
private final TransportGetAction getAction;
@Inject
public TransportPercolateAction(Settings settings, ThreadPool threadPool, ClusterService clusterService,
TransportService transportService, PercolatorService percolatorService,
TransportGetAction getAction, ActionFilters actionFilters, IndexNameExpressionResolver indexNameExpressionResolver) {
super(settings, PercolateAction.NAME, threadPool, clusterService, transportService, actionFilters,
indexNameExpressionResolver, PercolateRequest::new, PercolateShardRequest::new, ThreadPool.Names.PERCOLATE);
this.percolatorService = percolatorService;
this.getAction = getAction;
}
@Override
protected void doExecute(final PercolateRequest request, final ActionListener<PercolateResponse> listener) {
request.startTime = System.currentTimeMillis();
if (request.getRequest() != null) {
//create a new get request to make sure it has the same headers and context as the original percolate request
GetRequest getRequest = new GetRequest(request.getRequest());
getAction.execute(getRequest, new ActionListener<GetResponse>() {
@Override
public void onResponse(GetResponse getResponse) {
if (!getResponse.isExists()) {
onFailure(new DocumentMissingException(null, request.getRequest().type(), request.getRequest().id()));
return;
}
BytesReference docSource = getResponse.getSourceAsBytesRef();
TransportPercolateAction.super.doExecute(new PercolateRequest(request, docSource), listener);
}
@Override
public void onFailure(Throwable e) {
listener.onFailure(e);
}
});
} else {
super.doExecute(request, listener);
}
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, PercolateRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.READ);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, PercolateRequest request, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.READ, concreteIndices);
}
@Override
protected PercolateResponse newResponse(PercolateRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
return reduce(request, shardsResponses, percolatorService);
}
public static PercolateResponse reduce(PercolateRequest request, AtomicReferenceArray shardsResponses, PercolatorService percolatorService) {
int successfulShards = 0;
int failedShards = 0;
List<PercolateShardResponse> shardResults = null;
List<ShardOperationFailedException> shardFailures = null;
boolean onlyCount = false;
for (int i = 0; i < shardsResponses.length(); i++) {
Object shardResponse = shardsResponses.get(i);
if (shardResponse == null) {
// simply ignore non active shards
} else if (shardResponse instanceof BroadcastShardOperationFailedException) {
failedShards++;
if (shardFailures == null) {
shardFailures = new ArrayList<>();
}
shardFailures.add(new DefaultShardOperationFailedException((BroadcastShardOperationFailedException) shardResponse));
} else {
PercolateShardResponse percolateShardResponse = (PercolateShardResponse) shardResponse;
successfulShards++;
if (!percolateShardResponse.isEmpty()) {
if (shardResults == null) {
onlyCount = percolateShardResponse.onlyCount();
shardResults = new ArrayList<>();
}
shardResults.add(percolateShardResponse);
}
}
}
if (shardResults == null) {
long tookInMillis = Math.max(1, System.currentTimeMillis() - request.startTime);
PercolateResponse.Match[] matches = request.onlyCount() ? null : PercolateResponse.EMPTY;
return new PercolateResponse(shardsResponses.length(), successfulShards, failedShards, shardFailures, tookInMillis, matches);
} else {
PercolatorService.ReduceResult result = null;
try {
result = percolatorService.reduce(onlyCount, shardResults);
} catch (IOException e) {
throw new ElasticsearchException("error during reduce phase", e);
}
long tookInMillis = Math.max(1, System.currentTimeMillis() - request.startTime);
return new PercolateResponse(
shardsResponses.length(), successfulShards, failedShards, shardFailures,
result.matches(), result.count(), tookInMillis, result.reducedAggregations()
);
}
}
@Override
protected PercolateShardRequest newShardRequest(int numShards, ShardRouting shard, PercolateRequest request) {
return new PercolateShardRequest(shard.shardId(), numShards, request);
}
@Override
protected PercolateShardResponse newShardResponse() {
return new PercolateShardResponse();
}
@Override
protected GroupShardsIterator shards(ClusterState clusterState, PercolateRequest request, String[] concreteIndices) {
Map<String, Set<String>> routingMap = indexNameExpressionResolver.resolveSearchRouting(clusterState, request.routing(), request.indices());
return clusterService.operationRouting().searchShards(clusterState, concreteIndices, routingMap, request.preference());
}
@Override
protected PercolateShardResponse shardOperation(PercolateShardRequest request) {
try {
return percolatorService.percolate(request);
} catch (Throwable e) {
logger.trace("{} failed to percolate", e, request.shardId());
throw new PercolateException(request.shardId(), "failed to percolate", e);
}
}
}
|
