Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/github.com/gregjones/httpcache/diskcache/diskcache.go b/vendor/github.com/gregjones/httpcache/diskcache/diskcache.go
new file mode 100644
index 0000000..42e3129
--- /dev/null
+++ b/vendor/github.com/gregjones/httpcache/diskcache/diskcache.go
@@ -0,0 +1,61 @@
+// Package diskcache provides an implementation of httpcache.Cache that uses the diskv package
+// to supplement an in-memory map with persistent storage
+//
+package diskcache
+
+import (
+ "bytes"
+ "crypto/md5"
+ "encoding/hex"
+ "github.com/peterbourgon/diskv"
+ "io"
+)
+
+// Cache is an implementation of httpcache.Cache that supplements the in-memory map with persistent storage
+type Cache struct {
+ d *diskv.Diskv
+}
+
+// Get returns the response corresponding to key if present
+func (c *Cache) Get(key string) (resp []byte, ok bool) {
+ key = keyToFilename(key)
+ resp, err := c.d.Read(key)
+ if err != nil {
+ return []byte{}, false
+ }
+ return resp, true
+}
+
+// Set saves a response to the cache as key
+func (c *Cache) Set(key string, resp []byte) {
+ key = keyToFilename(key)
+ c.d.WriteStream(key, bytes.NewReader(resp), true)
+}
+
+// Delete removes the response with key from the cache
+func (c *Cache) Delete(key string) {
+ key = keyToFilename(key)
+ c.d.Erase(key)
+}
+
+func keyToFilename(key string) string {
+ h := md5.New()
+ io.WriteString(h, key)
+ return hex.EncodeToString(h.Sum(nil))
+}
+
+// New returns a new Cache that will store files in basePath
+func New(basePath string) *Cache {
+ return &Cache{
+ d: diskv.New(diskv.Options{
+ BasePath: basePath,
+ CacheSizeMax: 100 * 1024 * 1024, // 100MB
+ }),
+ }
+}
+
+// NewWithDiskv returns a new Cache using the provided Diskv as underlying
+// storage.
+func NewWithDiskv(d *diskv.Diskv) *Cache {
+ return &Cache{d}
+}