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[jrubyscripting] Update README (#16440)
Signed-off-by: Jimmy Tanagra <jcode@tanagra.id.au>
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@ -60,6 +60,7 @@ If you're new to Ruby, you may want to check out [Ruby Basics](https://openhab.g
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- [Terse Rules](#terse-rules)
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- [Early Exit From a Rule](#early-exit-from-a-rule)
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- [Dynamic Generation of Rules](#dynamic-generation-of-rules)
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- [Scenes and Scripts](#scenes-and-scripts)
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- [Hooks](#hooks)
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- [Calling Java From JRuby](#calling-java-from-jruby)
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- [Full Documentation](#full-documentation)
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@ -99,7 +100,7 @@ Additional [example rules are available](https://openhab.github.io/openhab-jruby
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1. Go to `Settings -> Add-ons -> Automation` and install the jrubyscripting automation addon following the [openHAB instructions](https://www.openhab.org/docs/configuration/addons.html).
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In openHAB 4.0+ the defaults are set so the next step can be skipped.
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1. Go to `Settings -> Other Services -> JRuby Scripting`:
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1. Go to `Settings -> Add-on Settings -> JRuby Scripting`:
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- **Ruby Gems**: `openhab-scripting=~>5.0`
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- **Require Scripts**: `openhab/dsl` (not required, but recommended)
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@ -118,7 +119,7 @@ Additional [example rules are available](https://openhab.github.io/openhab-jruby
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## Configuration
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After installing this add-on, you will find configuration options in the openHAB portal under _Settings -> Other Services -> JRuby Scripting_.
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After installing this add-on, you will find configuration options in the openHAB portal under _Settings -> Add-on Settings -> JRuby Scripting_.
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Alternatively, JRuby configuration parameters may be set by creating a `jruby.cfg` file in `conf/services/`.
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By default this add-on includes the [openhab-scripting](https://github.com/openhab/openhab-jruby) Ruby gem and automatically `require`s it.
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@ -262,12 +263,13 @@ When you use "Item event" as trigger (i.e. "[item] received a command", "[item]
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This tables gives an overview of the `event` object for most common trigger types.
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For full details, explore [OpenHAB::Core::Events](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Events.html).
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| Property Name | Type | Trigger Types | Description | Rules DSL Equivalent |
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| ------------- | -------------------------------------------------------------------------------------------- | -------------------------------------- | ---------------------------------------------------- | ---------------------- |
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| `state` | [State](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Types/State.html) or `nil` | `[item] changed`, `[item] was updated` | State that triggered event | `triggeringItem.state` |
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| `was` | [State](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Types/State.html) or `nil` | `[item] changed` | Previous state of Item or Group that triggered event | `previousState` |
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| `command` | [Command](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Types/Command.html) | `[item] received a command` | Command that triggered event | `receivedCommand` |
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| `item` | [Item](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Items/Item.html) | all | Item that triggered event | `triggeringItem` |
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| Property Name | Type | Trigger Types | Description | Rules DSL Equivalent |
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| ------------- | -------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------- | ---------------------- |
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| `state` | [State](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Types/State.html) or `nil` | `[item] changed`, `[item] was updated` | State that triggered event | `triggeringItem.state` |
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| `was` | [State](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Types/State.html) or `nil` | `[item] changed` | Previous state of Item or Group that triggered event | `previousState` |
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| `command` | [Command](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Types/Command.html) | `[item] received a command` | Command that triggered event | `receivedCommand` |
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| `item` | [Item](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Items/Item.html) | All item related triggers | Item that triggered event | `triggeringItem` |
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| `group` | [GroupItem](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/Items/Item.html) | `Member of [group] changed`, `Member of [group] was updated`, `Member of [group] received a command` | Group whose member triggered the event | `triggeringGroup` |
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```ruby
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logger.info(event.state == ON)
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@ -473,6 +475,9 @@ My_Item.ensure << ON
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logger.info("Turning off the light") if My_Item.ensure.off
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```
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See [ensure_states](https://openhab.github.io/openhab-jruby/main/OpenHAB/DSL.html#ensure_states-class_method), [ensure_states!](https://openhab.github.io/openhab-jruby/main/OpenHAB/DSL.html#ensure_states!-class_method),
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[ensure](https://openhab.github.io/openhab-jruby/main/OpenHAB/DSL/Items/Ensure/Ensurable.html#ensure-instance_method).
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##### Timed Commands
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A [Timed Command](https://openhab.github.io/openhab-jruby/main/OpenHAB/DSL/Items/TimedCommand.html) is similar to the openHAB Item's [expire parameter](https://www.openhab.org/docs/configuration/items.html#parameter-expire) but it offers more flexibility.
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@ -1740,6 +1745,24 @@ virtual_switches.each do |switch|
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end
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```
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### Scenes and Scripts
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A `scene` can be created using the [.scene](https://openhab.github.io/openhab-jruby/main/OpenHAB/DSL.html#scene-class_method) method.
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```ruby
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scene "Movie", id: "movie", description: "Set up the theatre for movie watching" do
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Theatre_Window_Blinds.down
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Theatre_Screen_Curtain.up
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Theatre_Mood_Light.on
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Theatre_Light.off
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Theatre_Projector.on
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Theatre_Receiver.on
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end
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```
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To create a `script`, use the [.script](https://openhab.github.io/openhab-jruby/main/OpenHAB/DSL.html#script-class_method) method.
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Note that scripts can be executed with additional contexts.
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### Hooks
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File based scripts can also register [hooks](https://openhab.github.io/openhab-jruby/main/OpenHAB/Core/ScriptHandling.html) that will be called when the script has completed loading (`script_loaded`) and when it gets unloaded (`script_unloaded`).
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