From 5cdf2564a5532a57292124fce3a1d800c1598ac2 Mon Sep 17 00:00:00 2001
From: "Frederick F. Kautz IV" <fkautz@alumni.cmu.edu>
Date: Thu, 26 Mar 2015 10:21:24 -0700
Subject: [PATCH] Adding iodine to node_local

---
 pkg/storage/donut/node_local.go | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/pkg/storage/donut/node_local.go b/pkg/storage/donut/node_local.go
index cc1bb5e35..bb4e18da1 100644
--- a/pkg/storage/donut/node_local.go
+++ b/pkg/storage/donut/node_local.go
@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"encoding/json"
+	"github.com/minio-io/iodine"
 	"io/ioutil"
 	"path/filepath"
 )
@@ -18,13 +19,13 @@ type localDirectoryNode struct {
 
 func (d localDirectoryNode) CreateBucket(bucket string) error {
 	objectPath := path.Join(d.root, bucket)
-	return os.MkdirAll(objectPath, 0700)
+	return iodine.Error(os.MkdirAll(objectPath, 0700), map[string]string{"bucket": bucket})
 }
 
 func (d localDirectoryNode) GetBuckets() ([]string, error) {
 	files, err := ioutil.ReadDir(d.root)
 	if err != nil {
-		return nil, err
+		return nil, iodine.Error(err, nil)
 	}
 	var results []string
 	for _, file := range files {
@@ -36,46 +37,53 @@ func (d localDirectoryNode) GetBuckets() ([]string, error) {
 }
 
 func (d localDirectoryNode) GetWriter(bucket, object string) (Writer, error) {
+	errParams := map[string]string{"bucket": bucket, "object": object}
 	objectPath := path.Join(d.root, bucket, object)
 	err := os.MkdirAll(objectPath, 0700)
 	if err != nil {
-		return nil, err
+		return nil, iodine.Error(err, errParams)
 	}
-	return newDonutObjectWriter(objectPath)
+	writer, err := newDonutObjectWriter(objectPath)
+	return writer, iodine.Error(err, errParams)
 }
 
 func (d localDirectoryNode) GetReader(bucket, object string) (io.ReadCloser, error) {
-	return os.Open(path.Join(d.root, bucket, object, "data"))
+	reader, err := os.Open(path.Join(d.root, bucket, object, "data"))
+	return reader, iodine.Error(err, map[string]string{"bucket": bucket, "object": object})
 }
 
 func (d localDirectoryNode) GetMetadata(bucket, object string) (map[string]string, error) {
-	return d.getMetadata(bucket, object, "metadata.json")
+	m, err := d.getMetadata(bucket, object, "metadata.json")
+	return m, iodine.Error(err, map[string]string{"bucket": bucket, "object": object})
 }
 func (d localDirectoryNode) GetDonutMetadata(bucket, object string) (map[string]string, error) {
-	return d.getMetadata(bucket, object, "donutMetadata.json")
+	m, err := d.getMetadata(bucket, object, "donutMetadata.json")
+	return m, iodine.Error(err, map[string]string{"bucket": bucket, "object": object})
 }
 
 func (d localDirectoryNode) getMetadata(bucket, object, fileName string) (map[string]string, error) {
+	errParams := map[string]string{"bucket": bucket, "object": object, "file": fileName}
 	file, err := os.Open(path.Join(d.root, bucket, object, fileName))
 	defer file.Close()
 	if err != nil {
-		return nil, err
+		return nil, iodine.Error(err, errParams)
 	}
 	metadata := make(map[string]string)
 	decoder := json.NewDecoder(file)
 	if err := decoder.Decode(&metadata); err != nil {
-		return nil, err
+		return nil, iodine.Error(err, errParams)
 	}
 	return metadata, nil
 
 }
 
 func (d localDirectoryNode) ListObjects(bucketName string) ([]string, error) {
+	errParams := map[string]string{"bucket": bucketName}
 	prefix := path.Join(d.root, bucketName)
 	var objects []string
 	if err := filepath.Walk(prefix, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
-			return err
+			return iodine.Error(err, errParams)
 		}
 		if !info.IsDir() && strings.HasSuffix(path, "data") {
 			object := strings.TrimPrefix(path, prefix+"/")
@@ -84,7 +92,7 @@ func (d localDirectoryNode) ListObjects(bucketName string) ([]string, error) {
 		}
 		return nil
 	}); err != nil {
-		return nil, err
+		return nil, iodine.Error(err, errParams)
 	}
 	sort.Strings(objects)
 	return objects, nil