Exemplo n.º 1
0
func (self *TDynamoDBStore) InitTable() {
	glog.Info("Initializing tables")
	newTableDesc := DynamoDBDemoTableDescription()
	tableExists := self.findTableByName(newTableDesc.TableName)
	if tableExists {
		glog.Infof("Table %s exists, skipping init", newTableDesc.TableName)
		glog.Infof("Waiting until table %s becomes active", newTableDesc.TableName)
		self.waitUntilTableIsActive(newTableDesc.TableName)
		glog.Infof("Table %s is active", newTableDesc.TableName)
		return
	} else {
		glog.Infof("Creating table %s", newTableDesc.TableName)
		status, err := self.dynamoServer.CreateTable(newTableDesc)
		contract.RequireNoError(err)
		if status == TableStatusCreating {
			glog.Infof("Waiting until table %s becomes active", newTableDesc.TableName)
			self.waitUntilTableIsActive(newTableDesc.TableName)
			glog.Infof("Table %s is active", newTableDesc.TableName)
			return
		}
		if status == TableStatusActive {
			glog.Infof("Table %s is active", newTableDesc.TableName)
			return
		}
		glog.Fatal("Unexpected status:", status)
	}
}
Exemplo n.º 2
0
func (self *TDynamoDBStore) DestroyTable() {
	glog.Info("Destroying tables")
	newTableDesc := DynamoDBDemoTableDescription()
	tableExists := self.findTableByName(newTableDesc.TableName)
	if !tableExists {
		glog.Infof("Table %s doesn't exists, skipping deletion", newTableDesc.TableName)
		return
	} else {
		_, err := self.dynamoServer.DeleteTable(newTableDesc)
		if err != nil {
			glog.Fatal(err)
		}
		glog.Infof("Table %s deleted successfully", newTableDesc.TableName)
	}
}
Exemplo n.º 3
0
func main() {
	var cfg Config
	err := gcfg.ReadFileInto(&cfg, "dynamodb.gcfg.local")
	if err != nil {
		glog.Fatal(err)
	}
	store := MakeDynamoDBStore(cfg.DynamoDemos_AWS.Key, cfg.DynamoDemos_AWS.Secret)
	store.InitTable()
	item := MakeItem("some-unique-id", StringAttr("color", "red"))
	// insert row
	if ok, err := store.PutItem(item); !ok {
		glog.Fatalf("Failed to save item %v because of: %v", item, err)
	}
	glog.Infof("Item %v saved ", item)
	// find row
	savedItem, err := store.GetItem(item.PrimaryKey)
	if err != nil {
		glog.Fatalf("Failed to get saved item with pk %s", item.PrimaryKey)

	}
	glog.Infof("Got item %#v", savedItem)
	// find non-existing row
	_, err = store.GetItem("unknown")
	if err == nil {
		glog.Fatalf("Shouldnt get an item with pk %s", "unknown")

	} else if err.Error() == "Item not found" {
		glog.Infof("Failed to get non-existent item with err %s", err.Error())
	} else {
		glog.Fatalf("Failed to get non-existent item with unexpected err %s", err.Error())
	}
	// update row
	updItem := MakeItem("some-unique-id", StringAttr("color", "violet"))
	if ok, err := store.UpdateItem(updItem); !ok {
		glog.Fatalf("Failed to update item with unexpected err: %v", err)
	}
	// delete row
	if ok, err := store.DeleteItem(item); !ok {
		glog.Fatalf("Failed to delete item with unexpected err: %v", err)
	}
	store.DestroyTable()
}