/
push.go
151 lines (126 loc) · 3.71 KB
/
push.go
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
// Copyright (c) 2015-2016 Couchbase, 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 command
import (
"encoding/json"
"io"
"github.com/couchbase/query/errors"
"github.com/couchbase/query/value"
go_n1ql "github.com/couchbaselabs/go_n1ql"
)
/* Push Command */
type Push struct {
ShellCommand
}
func (this *Push) Name() string {
return "PUSH"
}
func (this *Push) CommandCompletion() bool {
return false
}
func (this *Push) MinArgs() int {
return 0
}
func (this *Push) MaxArgs() int {
return MAX_ARGS
}
func (this *Push) ExecCommand(args []string) (int, string) {
/* Command to set the value of the given parameter to
the input value. The top value of the parameter stack
is modified. If the command contains no input argument
or more than 1 argument then throw an error.
*/
if len(args) > this.MaxArgs() {
return errors.TOO_MANY_ARGS, ""
} else if len(args) == 1 {
return errors.TOO_FEW_ARGS, ""
} else if len(args) == 0 {
/* For \PUSH with no input arguments, push the top value
on the stack for every variable. Dont return errors in
this case as any one of these stacks can be empty.
*/
//Named Parameters
Pushparam_Helper(NamedParam, true, true)
//Query Parameters
Pushparam_Helper(QueryParam, true, false)
//User Defined Session Variables
Pushparam_Helper(UserDefSV, false, false)
//Should not push predefined variables unless
//they are expicitely specified as an arg to PUSH.
//Pushparam_Helper(PreDefSV)
} else {
//Check what kind of parameter needs to be pushed.
err_code, err_Str := PushOrSet(args, false)
if err_code != 0 {
return err_code, err_Str
}
}
return 0, ""
}
func (this *Push) PrintHelp(desc bool) (int, string) {
_, werr := io.WriteString(W, "\\PUSH \n\\PUSH <parameter> <value>\n")
if desc {
err_code, err_str := printDesc(this.Name())
if err_code != 0 {
return err_code, err_str
}
}
_, werr = io.WriteString(W, "\n")
if werr != nil {
return errors.WRITER_OUTPUT, werr.Error()
}
return 0, ""
}
/* Push value from the Top of the stack onto the parameter stack.
This is used by the \PUSH command with no arguments.
*/
func Pushparam_Helper(param map[string]*Stack, isrestp bool, isnamep bool) (int, string) {
for name, v := range param {
t, err_code, err_string := v.Top()
if err_code != 0 {
return err_code, err_string
}
v.Push(t)
// When passing the query rest api parameter to go_n1ql
// we need to convert to string only if the value isnt
// already a string
if isrestp == true {
var val string = ""
if t.Type() == value.STRING {
val = t.Actual().(string)
} else {
val = ValToStr(t)
}
if isnamep == true {
name = "$" + name
} else {
//We know it is a query credential
if name == "creds" {
// Define credentials as user/pass and convert into
// JSON object credentials
var creds Credentials
creds_ret, err_code, err_str := ToCreds(val)
if err_code != 0 {
return err_code, err_str
}
for _, v := range creds_ret {
creds = append(creds, v)
}
ac, err := json.Marshal(creds)
if err != nil {
return errors.JSON_MARSHAL, ""
}
val = string(ac)
}
}
go_n1ql.SetQueryParams(name, val)
}
}
return 0, ""
}