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
|
// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.dispatch.rpc;
import com.yahoo.compress.CompressionType;
import com.yahoo.prelude.fastsearch.FastHit;
import java.util.List;
import java.util.Optional;
/**
* A dispatch client.
*
* @author bratseth
*/
interface Client {
void getDocsums(List<FastHit> hits, NodeConnection node, CompressionType compression,
int uncompressedLength, byte[] compressedSlime, RpcFillInvoker.GetDocsumsResponseReceiver responseReceiver,
double timeoutSeconds);
void search(NodeConnection node, CompressionType compression,
int uncompressedLength, byte[] compressedPayload, RpcSearchInvoker responseReceiver,
double timeoutSeconds);
/** Creates a connection to a particular node in this */
NodeConnection createConnection(String hostname, int port);
class GetDocsumsResponseOrError {
// One of these will be non empty and the other not
private Optional<GetDocsumsResponse> response;
private Optional<String> error;
public static GetDocsumsResponseOrError fromResponse(GetDocsumsResponse response) {
return new GetDocsumsResponseOrError(Optional.of(response), Optional.empty());
}
public static GetDocsumsResponseOrError fromError(String error) {
return new GetDocsumsResponseOrError(Optional.empty(), Optional.of(error));
}
private GetDocsumsResponseOrError(Optional<GetDocsumsResponse> response, Optional<String> error) {
this.response = response;
this.error = error;
}
/** Returns the response, or empty if there is an error */
public Optional<GetDocsumsResponse> response() { return response; }
/** Returns the error or empty if there is a response */
public Optional<String> error() { return error; }
}
class GetDocsumsResponse {
private final byte compression;
private final int uncompressedSize;
private final byte[] compressedSlimeBytes;
private final List<FastHit> hitsContext;
public GetDocsumsResponse(byte compression, int uncompressedSize, byte[] compressedSlimeBytes, List<FastHit> hitsContext) {
this.compression = compression;
this.uncompressedSize = uncompressedSize;
this.compressedSlimeBytes = compressedSlimeBytes;
this.hitsContext = hitsContext;
}
public byte compression() {
return compression;
}
public int uncompressedSize() {
return uncompressedSize;
}
public byte[] compressedSlimeBytes() {
return compressedSlimeBytes;
}
public List<FastHit> hitsContext() {
return hitsContext;
}
}
interface NodeConnection {
/** Closes this connection */
void close();
}
class SearchResponseOrError {
// One of these will be non empty and the other not
private Optional<SearchResponse> response;
private Optional<String> error;
public static SearchResponseOrError fromResponse(SearchResponse response) {
return new SearchResponseOrError(Optional.of(response), Optional.empty());
}
public static SearchResponseOrError fromError(String error) {
return new SearchResponseOrError(Optional.empty(), Optional.of(error));
}
private SearchResponseOrError(Optional<SearchResponse> response, Optional<String> error) {
this.response = response;
this.error = error;
}
/** Returns the response, or empty if there is an error */
public Optional<SearchResponse> response() { return response; }
/** Returns the error or empty if there is a response */
public Optional<String> error() { return error; }
}
class SearchResponse {
private final byte compression;
private final int uncompressedSize;
private final byte[] compressedPayload;
public SearchResponse(byte compression, int uncompressedSize, byte[] compressedPayload) {
this.compression = compression;
this.uncompressedSize = uncompressedSize;
this.compressedPayload = compressedPayload;
}
public byte compression() {
return compression;
}
public int uncompressedSize() {
return uncompressedSize;
}
public byte[] compressedPayload() {
return compressedPayload;
}
}
}
|
