1 files changed, 196 insertions, 0 deletions
diff --git a/vendor/github.com/minio/minio-go/pkg/set/stringset.go b/vendor/github.com/minio/minio-go/pkg/set/stringset.go
new file mode 100644
index 000000000..55084d461
--- /dev/null
+++ b/vendor/github.com/minio/minio-go/pkg/set/stringset.go
@@ -0,0 +1,196 @@
+/*
+ * Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2016 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 set
+
+import (
+	"encoding/json"
+	"fmt"
+	"sort"
+)
+
+// StringSet - uses map as set of strings.
+type StringSet map[string]struct{}
+
+// keys - returns StringSet keys.
+func (set StringSet) keys() []string {
+	keys := make([]string, 0, len(set))
+	for k := range set {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+// IsEmpty - returns whether the set is empty or not.
+func (set StringSet) IsEmpty() bool {
+	return len(set) == 0
+}
+
+// Add - adds string to the set.
+func (set StringSet) Add(s string) {
+	set[s] = struct{}{}
+}
+
+// Remove - removes string in the set.  It does nothing if string does not exist in the set.
+func (set StringSet) Remove(s string) {
+	delete(set, s)
+}
+
+// Contains - checks if string is in the set.
+func (set StringSet) Contains(s string) bool {
+	_, ok := set[s]
+	return ok
+}
+
+// FuncMatch - returns new set containing each value who passes match function.
+// A 'matchFn' should accept element in a set as first argument and
+// 'matchString' as second argument.  The function can do any logic to
+// compare both the arguments and should return true to accept element in
+// a set to include in output set else the element is ignored.
+func (set StringSet) FuncMatch(matchFn func(string, string) bool, matchString string) StringSet {
+	nset := NewStringSet()
+	for k := range set {
+		if matchFn(k, matchString) {
+			nset.Add(k)
+		}
+	}
+	return nset
+}
+
+// ApplyFunc - returns new set containing each value processed by 'applyFn'.
+// A 'applyFn' should accept element in a set as a argument and return
+// a processed string.  The function can do any logic to return a processed
+// string.
+func (set StringSet) ApplyFunc(applyFn func(string) string) StringSet {
+	nset := NewStringSet()
+	for k := range set {
+		nset.Add(applyFn(k))
+	}
+	return nset
+}
+
+// Equals - checks whether given set is equal to current set or not.
+func (set StringSet) Equals(sset StringSet) bool {
+	// If length of set is not equal to length of given set, the
+	// set is not equal to given set.
+	if len(set) != len(sset) {
+		return false
+	}
+
+	// As both sets are equal in length, check each elements are equal.
+	for k := range set {
+		if _, ok := sset[k]; !ok {
+			return false
+		}
+	}
+
+	return true
+}
+
+// Intersection - returns the intersection with given set as new set.
+func (set StringSet) Intersection(sset StringSet) StringSet {
+	nset := NewStringSet()
+	for k := range set {
+		if _, ok := sset[k]; ok {
+			nset.Add(k)
+		}
+	}
+
+	return nset
+}
+
+// Difference - returns the difference with given set as new set.
+func (set StringSet) Difference(sset StringSet) StringSet {
+	nset := NewStringSet()
+	for k := range set {
+		if _, ok := sset[k]; !ok {
+			nset.Add(k)
+		}
+	}
+
+	return nset
+}
+
+// Union - returns the union with given set as new set.
+func (set StringSet) Union(sset StringSet) StringSet {
+	nset := NewStringSet()
+	for k := range set {
+		nset.Add(k)
+	}
+
+	for k := range sset {
+		nset.Add(k)
+	}
+
+	return nset
+}
+
+// MarshalJSON - converts to JSON data.
+func (set StringSet) MarshalJSON() ([]byte, error) {
+	return json.Marshal(set.keys())
+}
+
+// UnmarshalJSON - parses JSON data and creates new set with it.
+// If 'data' contains JSON string array, the set contains each string.
+// If 'data' contains JSON string, the set contains the string as one element.
+// If 'data' contains Other JSON types, JSON parse error is returned.
+func (set *StringSet) UnmarshalJSON(data []byte) error {
+	sl := []string{}
+	var err error
+	if err = json.Unmarshal(data, &sl); err == nil {
+		*set = make(StringSet)
+		for _, s := range sl {
+			set.Add(s)
+		}
+	} else {
+		var s string
+		if err = json.Unmarshal(data, &s); err == nil {
+			*set = make(StringSet)
+			set.Add(s)
+		}
+	}
+
+	return err
+}
+
+// String - returns printable string of the set.
+func (set StringSet) String() string {
+	return fmt.Sprintf("%s", set.keys())
+}
+
+// NewStringSet - creates new string set.
+func NewStringSet() StringSet {
+	return make(StringSet)
+}
+
+// CreateStringSet - creates new string set with given string values.
+func CreateStringSet(sl ...string) StringSet {
+	set := make(StringSet)
+	for _, k := range sl {
+		set.Add(k)
+	}
+	return set
+}
+
+// CopyStringSet - returns copy of given set.
+func CopyStringSet(set StringSet) StringSet {
+	nset := NewStringSet()
+	for k, v := range set {
+		nset[k] = v
+	}
+	return nset
+}