/
catalog_map.go
132 lines (112 loc) · 3.39 KB
/
catalog_map.go
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// Copyright 2016 IBM Corporation
//
// 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 store defines and implements a backend store for the registry
package store
import (
"sync"
log "github.com/Sirupsen/logrus"
"github.com/amalgam8/amalgam8/pkg/auth"
"github.com/amalgam8/amalgam8/registry/utils/logging"
)
const (
module = "STORE"
)
// CatalogMap represents the interface of the Service store
type CatalogMap interface {
GetCatalog(auth.Namespace) (Catalog, error)
}
type catalogMap struct {
conf *Config
catalogs map[auth.Namespace]Catalog
catalogFactory CatalogFactory
logger *log.Entry
sync.Mutex
}
// New creates a new CatalogMap instance, bounded with the specified configuration
func New(conf *Config) CatalogMap {
var lentry = logging.GetLogger(module)
var factory CatalogFactory
if conf == nil {
conf = DefaultConfig
}
cmap := &catalogMap{
conf: conf,
catalogs: make(map[auth.Namespace]Catalog),
logger: lentry,
}
if conf.Store == "redis" {
externalConfig := &externalConfig{
defaultTTL: conf.DefaultTTL,
minimumTTL: conf.MinimumTTL,
maximumTTL: conf.MaximumTTL,
namespaceCapacity: conf.NamespaceCapacity,
store: conf.Store,
address: conf.StoreAddr,
password: conf.StorePassword,
database: conf.StoreDatabase,
}
externalFactory := newExternalFactory(externalConfig)
factory = externalFactory
conf.Replication = nil
} else {
// The InMemory catalog is the Read-Write catalog.
inmemConfig := &inMemoryConfig{
defaultTTL: conf.DefaultTTL,
minimumTTL: conf.MinimumTTL,
maximumTTL: conf.MaximumTTL,
namespaceCapacity: conf.NamespaceCapacity,
}
inmemFactory := newInMemoryFactory(inmemConfig)
factory = inmemFactory
}
if conf.Replication != nil {
repConfig := &replicatedConfig{
syncWaitTime: conf.SyncWaitTime,
rep: conf.Replication,
catalogMap: cmap,
localFactory: factory,
}
repFactory := newReplicatedFactory(repConfig)
defer repFactory.activate()
factory = repFactory
}
if len(conf.Extensions) > 0 {
factories := make([]CatalogFactory, len(conf.Extensions)+1)
factories[0] = factory
for i, f := range conf.Extensions {
factories[i+1] = f
}
factory = newMultiFactory(&multiConfig{factories: factories})
}
cmap.catalogFactory = factory
return cmap
}
func (cm *catalogMap) GetCatalog(namespace auth.Namespace) (Catalog, error) {
cm.Lock()
defer cm.Unlock()
catalog, exists := cm.catalogs[namespace]
if exists {
return catalog, nil
}
catalog, err := cm.catalogFactory.CreateCatalog(namespace)
if err != nil {
cm.logger.WithFields(log.Fields{
"error": err,
}).Errorf("Failed to create a new catalog [%s]", namespace)
return nil, err
}
cm.catalogs[namespace] = catalog
cm.logger.Infof("A new catalog [%s] has beed created", namespace)
return catalog, nil
}