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Adding iodine

This commit is contained in:
Frederick F. Kautz IV 2015-03-24 23:54:43 -07:00
parent 3fc54eea3a
commit 1ae74591f6
7 changed files with 373 additions and 3 deletions
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4
Godeps/Godeps.json generated
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@ -18,6 +18,10 @@
"Comment": "1.2.0-96-gfcc23e2",
"Rev": "fcc23e23a705c0d95fce2a446c364ac31a1c73a5"
},
{
"ImportPath": "github.com/minio-io/iodine",
"Rev": "3d54fa6339544392a0eaadcf2692fbc94d4ac21d"
},
{
"ImportPath": "gopkg.in/check.v1",
"Rev": "64131543e7896d5bcc6bd5a76287eb75ea96c673"

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Godeps/_workspace/src/github.com/minio-io/iodine/.gitignore generated vendored Normal file
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@ -0,0 +1,24 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof

202
Godeps/_workspace/src/github.com/minio-io/iodine/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
Apache License
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2
Godeps/_workspace/src/github.com/minio-io/iodine/README.md generated vendored Normal file
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@ -0,0 +1,2 @@
# iodine
Iodine is an error logging framework for tracing errors.

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Godeps/_workspace/src/github.com/minio-io/iodine/iodine.go generated vendored Normal file
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/*
* Iodine, (C) 2014 Minio, 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 iodine
import (
"bytes"
"encoding/json"
"fmt"
"os"
"runtime"
"strconv"
)
type Error struct {
EmbeddedError error `json:"-"`
ErrorMessage string
Stack []StackEntry
}
type StackEntry struct {
Host string
File string
Line int
Data map[string]string
}
func Wrap(err error, data map[string]string) *Error {
entry := createStackEntry()
for k, v := range data {
entry.Data[k] = v
}
return &Error{
EmbeddedError: err,
ErrorMessage: err.Error(),
Stack: []StackEntry{entry},
}
}
func createStackEntry() StackEntry {
host, _ := os.Hostname()
_, file, line, _ := runtime.Caller(2)
entry := StackEntry{
Host: host,
File: file,
Line: line,
Data: make(map[string]string),
}
return entry
}
func (err *Error) Annotate(info map[string]string) *Error {
data := make(map[string]string)
if info != nil {
for k, v := range info {
data[k] = v
}
}
entry := createStackEntry()
err.Stack = append(err.Stack, entry)
return err
}
func (err Error) EmitJson() ([]byte, error) {
return json.Marshal(err)
}
func (err Error) EmitHumanReadable() string {
var errorBuffer bytes.Buffer
fmt.Fprintln(&errorBuffer, err.Error())
for i, entry := range err.Stack {
fmt.Fprintln(&errorBuffer, "-", i, entry.Host+":"+entry.File+":"+strconv.Itoa(entry.Line), entry.Data)
}
return string(errorBuffer.Bytes())
}
func (err Error) Error() string {
return err.EmbeddedError.Error()
}

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Godeps/_workspace/src/github.com/minio-io/iodine/iodine_test.go generated vendored Normal file
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@ -0,0 +1,43 @@
/*
* Iodine, (C) 2014 Minio, 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 iodine
import (
"bytes"
"encoding/json"
"errors"
"log"
"testing"
)
func TestIodine(t *testing.T) {
iodineError := Wrap(errors.New("Hello"), nil)
iodineError.Annotate(nil)
iodineError.Annotate(nil)
iodineError.Annotate(nil)
if len(iodineError.Stack) != 4 {
t.Fail()
}
jsonResult, err := iodineError.EmitJson()
if err != nil {
t.Fail()
}
var prettyBuffer bytes.Buffer
json.Indent(&prettyBuffer, jsonResult, "", " ")
log.Println(string(prettyBuffer.Bytes()))
log.Println(iodineError.EmitHumanReadable())
}

8
pkg/storage/donut/donut.go
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@ -6,6 +6,8 @@ import (
"sort"
"strconv"
"strings"
"github.com/minio-io/iodine"
)
type donut struct {
@ -14,7 +16,7 @@ type donut struct {
}
// NewDonut - instantiate new donut driver
func NewDonut(root string) (Donut, error) {
func NewDonut(root string) (Donut, *iodine.Error) {
nodes := make(map[string]Node)
nodes["localhost"] = &localDirectoryNode{root: root}
driver := &donut{
@ -24,7 +26,7 @@ func NewDonut(root string) (Donut, error) {
for nodeID, node := range nodes {
bucketIDs, err := node.GetBuckets()
if err != nil {
return nil, err
return nil, iodine.Wrap(err, map[string]string{"root": root})
}
for _, bucketID := range bucketIDs {
tokens := strings.Split(bucketID, ":")
@ -38,7 +40,7 @@ func NewDonut(root string) (Donut, error) {
driver.buckets[tokens[0]] = bucket
}
if err = driver.buckets[tokens[0]].AddNode(nodeID, bucketID); err != nil {
return nil, err
return nil, iodine.Wrap(err, map[string]string{"root": root})
}
}
}