forked from mongodb/mongo-java-driver
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCommandResult.java
More file actions
153 lines (127 loc) · 4.29 KB
/
Copy pathCommandResult.java
File metadata and controls
153 lines (127 loc) · 4.29 KB
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
// CommandResult.java
/**
* Copyright (C) 2008 10gen Inc.
*
* 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 com.mongodb;
/**
* A simple wrapper for the result of getLastError() calls and other commands
*/
public class CommandResult extends BasicDBObject {
CommandResult(ServerAddress srv) {
this(null, srv);
}
CommandResult(DBObject cmd, ServerAddress srv) {
if (srv == null) {
throw new IllegalArgumentException("server address is null");
}
_cmd = cmd;
_host = srv;
//so it is shown in toString/debug
put("serverUsed", srv.toString());
}
/**
* gets the "ok" field which is the result of the command
* @return True if ok
*/
public boolean ok(){
Object o = get( "ok" );
if ( o == null )
throw new IllegalArgumentException( "'ok' should never be null..." );
if ( o instanceof Boolean )
return (Boolean) o;
if ( o instanceof Number )
return ((Number)o).intValue() == 1;
throw new IllegalArgumentException( "can't figure out what to do with: " + o.getClass().getName() );
}
/**
* gets the "errmsg" field which holds the error message
* @return The error message or null
*/
public String getErrorMessage(){
Object foo = get( "errmsg" );
if ( foo == null )
return null;
return foo.toString();
}
/**
* utility method to create an exception with the command name
* @return The mongo exception or null
*/
public MongoException getException(){
if ( !ok() ) {
StringBuilder buf = new StringBuilder();
String cmdName;
if (_cmd != null) {
cmdName = _cmd.keySet().iterator().next();
buf.append( "command failed [" ).append( cmdName ).append( "]: " );
} else {
buf.append( "operation failed: ");
}
buf.append( toString() );
return new CommandFailure( this , buf.toString() );
} else {
// GLE check
if ( hasErr() ) {
Object foo = get( "err" );
int code = getCode();
String s = foo.toString();
if ( code == 11000 || code == 11001 || s.startsWith( "E11000" ) || s.startsWith( "E11001" ) )
return new MongoException.DuplicateKey( code , s );
return new MongoException( code , s );
}
}
//all good, should never get here.
return null;
}
/**
* returns the "code" field, as an int
* @return -1 if there is no code
*/
private int getCode(){
int code = -1;
if ( get( "code" ) instanceof Number )
code = ((Number)get("code")).intValue();
return code;
}
/**
* check the "err" field
* @return if it has it, and isn't null
*/
boolean hasErr(){
Object o = get( "err" );
return (o != null && ( (String) o ).length() > 0 );
}
/**
* throws an exception containing the cmd name, in case the command failed, or the "err/code" information
* @throws MongoException
*/
public void throwOnError() throws MongoException {
if ( !ok() || hasErr() ){
throw getException();
}
}
public ServerAddress getServerUsed() {
return _host;
}
private final DBObject _cmd;
private final ServerAddress _host;
private static final long serialVersionUID = 1L;
static class CommandFailure extends MongoException {
private static final long serialVersionUID = 1L;
CommandFailure( CommandResult res , String msg ){
super( ServerError.getCode( res ) , msg );
}
}
}