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
|
/*
* 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.transport.local;
import org.elasticsearch.Version;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.util.concurrent.ThreadContext;
import org.elasticsearch.transport.RemoteTransportException;
import org.elasticsearch.transport.TransportChannel;
import org.elasticsearch.transport.TransportResponse;
import org.elasticsearch.transport.TransportResponseOptions;
import org.elasticsearch.transport.TransportServiceAdapter;
import org.elasticsearch.transport.support.TransportStatus;
import java.io.IOException;
/**
*
*/
public class LocalTransportChannel implements TransportChannel {
private static final String LOCAL_TRANSPORT_PROFILE = "default";
private final LocalTransport sourceTransport;
private final TransportServiceAdapter sourceTransportServiceAdapter;
// the transport we will *send to*
private final LocalTransport targetTransport;
private final String action;
private final long requestId;
private final Version version;
public LocalTransportChannel(LocalTransport sourceTransport, TransportServiceAdapter sourceTransportServiceAdapter, LocalTransport targetTransport, String action, long requestId, Version version) {
this.sourceTransport = sourceTransport;
this.sourceTransportServiceAdapter = sourceTransportServiceAdapter;
this.targetTransport = targetTransport;
this.action = action;
this.requestId = requestId;
this.version = version;
}
@Override
public String action() {
return action;
}
@Override
public String getProfileName() {
return LOCAL_TRANSPORT_PROFILE;
}
@Override
public void sendResponse(TransportResponse response) throws IOException {
sendResponse(response, TransportResponseOptions.EMPTY);
}
@Override
public void sendResponse(TransportResponse response, TransportResponseOptions options) throws IOException {
try (BytesStreamOutput stream = new BytesStreamOutput()) {
stream.setVersion(version);
stream.writeLong(requestId);
byte status = 0;
status = TransportStatus.setResponse(status);
stream.writeByte(status); // 0 for request, 1 for response.
response.writeTo(stream);
final byte[] data = stream.bytes().toBytes();
targetTransport.workers().execute(() -> {
ThreadContext threadContext = targetTransport.threadPool.getThreadContext();
try (ThreadContext.StoredContext ignore = threadContext.stashContext()){
targetTransport.messageReceived(data, action, sourceTransport, version, null);
}
});
sourceTransportServiceAdapter.onResponseSent(requestId, action, response, options);
}
}
@Override
public void sendResponse(Throwable error) throws IOException {
BytesStreamOutput stream = new BytesStreamOutput();
writeResponseExceptionHeader(stream);
RemoteTransportException tx = new RemoteTransportException(targetTransport.nodeName(), targetTransport.boundAddress().boundAddresses()[0], action, error);
stream.writeThrowable(tx);
final byte[] data = stream.bytes().toBytes();
targetTransport.workers().execute(() -> {
ThreadContext threadContext = targetTransport.threadPool.getThreadContext();
try (ThreadContext.StoredContext ignore = threadContext.stashContext()){
targetTransport.messageReceived(data, action, sourceTransport, version, null);
}
});
sourceTransportServiceAdapter.onResponseSent(requestId, action, error);
}
@Override
public long getRequestId() {
return requestId;
}
@Override
public String getChannelType() {
return "local";
}
private void writeResponseExceptionHeader(BytesStreamOutput stream) throws IOException {
stream.writeLong(requestId);
byte status = 0;
status = TransportStatus.setResponse(status);
status = TransportStatus.setError(status);
stream.writeByte(status);
}
}
|
