/
MockInvokersSelector.java
100 lines (90 loc) · 3.61 KB
/
MockInvokersSelector.java
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
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 com.alibaba.dubbo.rpc.cluster.router;
import com.alibaba.dubbo.common.Constants;
import com.alibaba.dubbo.common.URL;
import com.alibaba.dubbo.rpc.Invocation;
import com.alibaba.dubbo.rpc.Invoker;
import com.alibaba.dubbo.rpc.RpcException;
import com.alibaba.dubbo.rpc.cluster.Router;
import java.util.ArrayList;
import java.util.List;
/**
* A specific Router designed to realize mock feature.
* If a request is configured to use mock, then this router guarantees that only the invokers with protocol MOCK appear in final the invoker list, all other invokers will be excluded.
*
*/
public class MockInvokersSelector implements Router {
@Override
public <T> List<Invoker<T>> route(final List<Invoker<T>> invokers,
URL url, final Invocation invocation) throws RpcException {
if (invocation.getAttachments() == null) {
return getNormalInvokers(invokers);
} else {
String value = invocation.getAttachments().get(Constants.INVOCATION_NEED_MOCK);
if (value == null)
return getNormalInvokers(invokers);
else if (Boolean.TRUE.toString().equalsIgnoreCase(value)) {
return getMockedInvokers(invokers);
}
}
return invokers;
}
private <T> List<Invoker<T>> getMockedInvokers(final List<Invoker<T>> invokers) {
if (!hasMockProviders(invokers)) {
return null;
}
List<Invoker<T>> sInvokers = new ArrayList<Invoker<T>>(1);
for (Invoker<T> invoker : invokers) {
if (invoker.getUrl().getProtocol().equals(Constants.MOCK_PROTOCOL)) {
sInvokers.add(invoker);
}
}
return sInvokers;
}
private <T> List<Invoker<T>> getNormalInvokers(final List<Invoker<T>> invokers) {
if (!hasMockProviders(invokers)) {
return invokers;
} else {
List<Invoker<T>> sInvokers = new ArrayList<Invoker<T>>(invokers.size());
for (Invoker<T> invoker : invokers) {
if (!invoker.getUrl().getProtocol().equals(Constants.MOCK_PROTOCOL)) {
sInvokers.add(invoker);
}
}
return sInvokers;
}
}
private <T> boolean hasMockProviders(final List<Invoker<T>> invokers) {
boolean hasMockProvider = false;
for (Invoker<T> invoker : invokers) {
if (invoker.getUrl().getProtocol().equals(Constants.MOCK_PROTOCOL)) {
hasMockProvider = true;
break;
}
}
return hasMockProvider;
}
@Override
public URL getUrl() {
return null;
}
@Override
public int compareTo(Router o) {
return 1;
}
}