forked from hyperledger/fabric
-
Notifications
You must be signed in to change notification settings - Fork 0
/
platform.go
148 lines (118 loc) · 4.12 KB
/
platform.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
/*
Copyright DTCC 2016 All Rights Reserved.
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 java
import (
"archive/tar"
"bytes"
"compress/gzip"
"errors"
"fmt"
"net/url"
"strings"
cutil "github.com/hyperledger/fabric/core/container/util"
pb "github.com/hyperledger/fabric/protos/peer"
// "path/filepath"
)
// Platform for java chaincodes in java
type Platform struct {
}
var buildCmds = map[string]string{
"src/build.gradle": "gradle -b build.gradle clean && gradle -b build.gradle build",
"src/pom.xml": "mvn -f pom.xml clean && mvn -f pom.xml package",
}
//getBuildCmd returns the type of build gradle/maven based on the file
//found in java chaincode project root
//build.gradle - gradle - returns the first found build type
//pom.xml - maven
func getBuildCmd(codePackage []byte) (string, error) {
is := bytes.NewReader(codePackage)
gr, err := gzip.NewReader(is)
if err != nil {
return "", fmt.Errorf("failure opening gzip stream: %s", err)
}
tr := tar.NewReader(gr)
for {
header, err := tr.Next()
if err != nil {
return "", errors.New("Build file not found")
}
if cmd, ok := buildCmds[header.Name]; ok == true {
return cmd, nil
}
}
}
//ValidateSpec validates the java chaincode specs
func (javaPlatform *Platform) ValidateSpec(spec *pb.ChaincodeSpec) error {
path, err := url.Parse(spec.ChaincodeId.Path)
if err != nil || path == nil {
return fmt.Errorf("invalid path: %s", err)
}
//we have no real good way of checking existence of remote urls except by downloading and testing
//which we do later anyway. But we *can* - and *should* - test for existence of local paths.
//Treat empty scheme as a local filesystem path
// if url.Scheme == "" {
// pathToCheck := filepath.Join(os.Getenv("GOPATH"), "src", spec.ChaincodeId.Path)
// exists, err := pathExists(pathToCheck)
// if err != nil {
// return fmt.Errorf("Error validating chaincode path: %s", err)
// }
// if !exists {
// return fmt.Errorf("Path to chaincode does not exist: %s", spec.ChaincodeId.Path)
// }
// }
return nil
}
func (javaPlatform *Platform) ValidateDeploymentSpec(cds *pb.ChaincodeDeploymentSpec) error {
// FIXME: Java platform needs to implement its own validation similar to GOLANG
return nil
}
// WritePackage writes the java chaincode package
func (javaPlatform *Platform) GetDeploymentPayload(spec *pb.ChaincodeSpec) ([]byte, error) {
var err error
inputbuf := bytes.NewBuffer(nil)
gw := gzip.NewWriter(inputbuf)
tw := tar.NewWriter(gw)
//ignore the generated hash. Just use the tw
//The hash could be used in a future enhancement
//to check, warn of duplicate installs etc.
_, err = collectChaincodeFiles(spec, tw)
if err != nil {
return nil, err
}
err = writeChaincodePackage(spec, tw)
tw.Close()
gw.Close()
if err != nil {
return nil, err
}
payload := inputbuf.Bytes()
return payload, nil
}
func (javaPlatform *Platform) GenerateDockerfile(cds *pb.ChaincodeDeploymentSpec) (string, error) {
var err error
var buf []string
buildCmd, err := getBuildCmd(cds.CodePackage)
if err != nil {
return "", err
}
buf = append(buf, cutil.GetDockerfileFromConfig("chaincode.java.Dockerfile"))
buf = append(buf, "ADD codepackage.tgz /root/chaincode")
buf = append(buf, "RUN cd /root/chaincode/src && "+buildCmd)
buf = append(buf, "RUN cp /root/chaincode/src/build/chaincode.jar /root")
buf = append(buf, "RUN cp /root/chaincode/src/build/libs/* /root/libs")
dockerFileContents := strings.Join(buf, "\n")
return dockerFileContents, nil
}
func (javaPlatform *Platform) GenerateDockerBuild(cds *pb.ChaincodeDeploymentSpec, tw *tar.Writer) error {
return cutil.WriteBytesToPackage("codepackage.tgz", cds.CodePackage, tw)
}