Add API Framework Revel Source Files

[iec.git] / src / foundation / api / revel / cache / init.go

diff --git a/src/foundation/api/revel/cache/init.go b/src/foundation/api/revel/cache/init.go
new file mode 100644 (file)
index 0000000..0008a6a
--- /dev/null
+++ b/src/foundation/api/revel/cache/init.go
@@ -0,0 +1,60 @@
+// Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
+// Revel Framework source code and usage is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package cache
+
+import (
+       "strings"
+       "time"
+
+       "github.com/revel/revel"
+)
+
+var cacheLog = revel.RevelLog.New("section", "cache")
+
+func init() {
+       revel.OnAppStart(func() {
+               // Set the default expiration time.
+               defaultExpiration := time.Hour // The default for the default is one hour.
+               if expireStr, found := revel.Config.String("cache.expires"); found {
+                       var err error
+                       if defaultExpiration, err = time.ParseDuration(expireStr); err != nil {
+                               cacheLog.Panic("Could not parse default cache expiration duration " + expireStr + ": " + err.Error())
+                       }
+               }
+
+               // make sure you aren't trying to use both memcached and redis
+               if revel.Config.BoolDefault("cache.memcached", false) && revel.Config.BoolDefault("cache.redis", false) {
+                       cacheLog.Panic("You've configured both memcached and redis, please only include configuration for one cache!")
+               }
+
+               // Use memcached?
+               if revel.Config.BoolDefault("cache.memcached", false) {
+                       hosts := strings.Split(revel.Config.StringDefault("cache.hosts", ""), ",")
+                       if len(hosts) == 0 {
+                               cacheLog.Panic("Memcache enabled but no memcached hosts specified!")
+                       }
+
+                       Instance = NewMemcachedCache(hosts, defaultExpiration)
+                       return
+               }
+
+               // Use Redis (share same config as memcached)?
+               if revel.Config.BoolDefault("cache.redis", false) {
+                       hosts := strings.Split(revel.Config.StringDefault("cache.hosts", ""), ",")
+                       if len(hosts) == 0 {
+                               cacheLog.Panic("Redis enabled but no Redis hosts specified!")
+                       }
+                       if len(hosts) > 1 {
+                               cacheLog.Panic("Redis currently only supports one host!")
+                       }
+                       password := revel.Config.StringDefault("cache.redis.password", "")
+                       Instance = NewRedisCache(hosts[0], password, defaultExpiration)
+                       return
+               }
+
+               // By default, use the in-memory cache.
+               Instance = NewInMemoryCache(defaultExpiration)
+       })
+}