xl: Moved to minio/minio - fixes #1112

pkg/xl/interfaces.go

@@ -0,0 +1,72 @@
+/*
+ * Minio Cloud Storage, (C) 2015 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 xl
+
+import (
+	"io"
+
+	"github.com/minio/minio/pkg/probe"
+	signV4 "github.com/minio/minio/pkg/signature"
+)
+
+// Collection of XL specification interfaces
+
+// Interface is a collection of cloud storage and management interface
+type Interface interface {
+	CloudStorage
+	Management
+}
+
+// CloudStorage is a xl cloud storage interface
+type CloudStorage interface {
+	// Storage service operations
+	GetBucketMetadata(bucket string) (BucketMetadata, *probe.Error)
+	SetBucketMetadata(bucket string, metadata map[string]string) *probe.Error
+	ListBuckets() ([]BucketMetadata, *probe.Error)
+	MakeBucket(bucket string, ACL string, location io.Reader, signature *signV4.Signature) *probe.Error
+
+	// Bucket operations
+	ListObjects(string, BucketResourcesMetadata) ([]ObjectMetadata, BucketResourcesMetadata, *probe.Error)
+
+	// Object operations
+	GetObject(w io.Writer, bucket, object string, start, length int64) (int64, *probe.Error)
+	GetObjectMetadata(bucket, object string) (ObjectMetadata, *probe.Error)
+	// bucket, object, expectedMD5Sum, size, reader, metadata, signature
+	CreateObject(string, string, string, int64, io.Reader, map[string]string, *signV4.Signature) (ObjectMetadata, *probe.Error)
+
+	Multipart
+}
+
+// Multipart API
+type Multipart interface {
+	NewMultipartUpload(bucket, key, contentType string) (string, *probe.Error)
+	AbortMultipartUpload(bucket, key, uploadID string) *probe.Error
+	CreateObjectPart(string, string, string, int, string, string, int64, io.Reader, *signV4.Signature) (string, *probe.Error)
+	CompleteMultipartUpload(bucket, key, uploadID string, data io.Reader, signature *signV4.Signature) (ObjectMetadata, *probe.Error)
+	ListMultipartUploads(string, BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error)
+	ListObjectParts(string, string, ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error)
+}
+
+// Management is a xl management system interface
+type Management interface {
+	Heal() *probe.Error
+	Rebalance() *probe.Error
+	Info() (map[string][]string, *probe.Error)
+
+	AttachNode(hostname string, disks []string) *probe.Error
+	DetachNode(hostname string) *probe.Error
+}