/
DependencyLink.java
140 lines (115 loc) · 3.67 KB
/
DependencyLink.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
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
/**
* Copyright 2015-2016 The OpenZipkin Authors
*
* Licensed 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 zipkin;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.io.StreamCorruptedException;
import static zipkin.internal.Util.UTF_8;
import static zipkin.internal.Util.checkNotNull;
public final class DependencyLink implements Serializable {
private static final long serialVersionUID = 0L;
public static DependencyLink create(String parent, String child, long callCount) {
return new DependencyLink(parent, child, callCount);
}
/** parent service name (caller) */
public final String parent;
/** child service name (callee) */
public final String child;
/** calls made during the duration (in milliseconds) of this link */
public final long callCount;
DependencyLink(String parent, String child, long callCount) {
this.parent = checkNotNull(parent, "parent").toLowerCase();
this.child = checkNotNull(child, "child").toLowerCase();
this.callCount = callCount;
}
public Builder toBuilder() {
return new Builder(this);
}
public static Builder builder() {
return new Builder();
}
public static final class Builder {
private String parent;
private String child;
private long callCount;
Builder() {
}
Builder(DependencyLink source) {
this.parent = source.parent;
this.child = source.child;
this.callCount = source.callCount;
}
public Builder parent(String parent) {
this.parent = parent;
return this;
}
public Builder child(String child) {
this.child = child;
return this;
}
public Builder callCount(long callCount) {
this.callCount = callCount;
return this;
}
public DependencyLink build() {
return new DependencyLink(parent, child, callCount);
}
}
@Override
public String toString() {
return new String(Codec.JSON.writeDependencyLink(this), UTF_8);
}
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (o instanceof DependencyLink) {
DependencyLink that = (DependencyLink) o;
return (this.parent.equals(that.parent))
&& (this.child.equals(that.child))
&& (this.callCount == that.callCount);
}
return false;
}
@Override
public int hashCode() {
int h = 1;
h *= 1000003;
h ^= parent.hashCode();
h *= 1000003;
h ^= child.hashCode();
h *= 1000003;
h ^= (callCount >>> 32) ^ callCount;
return h;
}
// Since this is an immutable object, and we have thrift handy, defer to a serialization proxy.
final Object writeReplace() throws ObjectStreamException {
return new SerializedForm(Codec.THRIFT.writeDependencyLink(this));
}
static final class SerializedForm implements Serializable {
private static final long serialVersionUID = 0L;
private final byte[] bytes;
SerializedForm(byte[] bytes) {
this.bytes = bytes;
}
Object readResolve() throws ObjectStreamException {
try {
return Codec.THRIFT.readDependencyLink(bytes);
} catch (IllegalArgumentException e) {
throw new StreamCorruptedException(e.getMessage());
}
}
}
}