| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 commands |
| |
| import ( |
| "fmt" |
| "github.com/apache/brooklyn-client/api/entity_sensors" |
| "github.com/apache/brooklyn-client/command_metadata" |
| "github.com/apache/brooklyn-client/error_handler" |
| "github.com/apache/brooklyn-client/models" |
| "github.com/apache/brooklyn-client/net" |
| "github.com/apache/brooklyn-client/scope" |
| "github.com/apache/brooklyn-client/terminal" |
| "github.com/codegangsta/cli" |
| "sort" |
| ) |
| |
| type Sensor struct { |
| network *net.Network |
| } |
| |
| type sensorList []models.SensorSummary |
| |
| // Len is the number of elements in the collection. |
| func (sensors sensorList) Len() int { |
| return len(sensors) |
| } |
| |
| // Less reports whether the element with |
| // index i should sort before the element with index j. |
| func (sensors sensorList) Less(i, j int) bool { |
| return sensors[i].Name < sensors[j].Name |
| } |
| |
| // Swap swaps the elements with indexes i and j. |
| func (sensors sensorList) Swap(i, j int) { |
| temp := sensors[i] |
| sensors[i] = sensors[j] |
| sensors[j] = temp |
| } |
| |
| func NewSensor(network *net.Network) (cmd *Sensor) { |
| cmd = new(Sensor) |
| cmd.network = network |
| return |
| } |
| |
| func (cmd *Sensor) Metadata() command_metadata.CommandMetadata { |
| return command_metadata.CommandMetadata{ |
| Name: "sensor", |
| Description: "Show values of all sensors or named sensor for an application or entity", |
| Usage: "BROOKLYN_NAME SCOPE sensor [ SENSOR_NAME ]", |
| Flags: []cli.Flag{}, |
| } |
| } |
| |
| func (cmd *Sensor) Run(scope scope.Scope, c *cli.Context) { |
| if err := net.VerifyLoginURL(cmd.network); err != nil { |
| error_handler.ErrorExit(err) |
| } |
| if c.Args().Present() { |
| cmd.show(scope.Application, scope.Entity, c.Args().First()) |
| } else { |
| cmd.list(scope.Application, scope.Entity) |
| } |
| } |
| |
| func (cmd *Sensor) show(application, entity, sensor string) { |
| sensorValue, err := entity_sensors.SensorValue(cmd.network, application, entity, sensor) |
| if nil != err { |
| error_handler.ErrorExit(err) |
| } |
| displayValue, err := stringRepresentation(sensorValue) |
| if nil != err { |
| error_handler.ErrorExit(err) |
| } |
| fmt.Println(displayValue) |
| } |
| |
| func (cmd *Sensor) list(application, entity string) { |
| sensors, err := entity_sensors.SensorList(cmd.network, application, entity) |
| if nil != err { |
| error_handler.ErrorExit(err) |
| } |
| var theSensors sensorList = sensors |
| table := terminal.NewTable([]string{"Name", "Description", "Value"}) |
| |
| sort.Sort(theSensors) |
| |
| for _, sensor := range theSensors { |
| value, err := entity_sensors.SensorValue(cmd.network, application, entity, sensor.Name) |
| if nil != err { |
| error_handler.ErrorExit(err) |
| } |
| displayValue, err := stringRepresentation(value) |
| if nil != err { |
| error_handler.ErrorExit(err) |
| } |
| table.Add(sensor.Name, sensor.Description, displayValue) |
| } |
| table.Print() |
| } |