Actions

Last modified 29 Aug 2024 13:54 +02:00

EXPERIMENTAL

This feature is experimental. It means that it is not intended for production use. The feature is not finished. It is not stable. The implementation may contain bugs, the configuration may change at any moment without any warning and it may not work at all. Use at your own risk. This feature is not covered by midPoint support. In case that you are interested in supporting development of this feature, please consider purchasing midPoint Platform subscription.

Since 4.2

This functionality is available since version 4.2.

Introduction

MidPoint Scripting Language (a.k.a "actions") traditionally have two kinds of components: "actions" and "others". The former ones have been devised to do something on input objects: modify them, enable/disable them, assign roles or resources to them, and so on. The latter components have been created to do everything other: to search repository for objects (to be applied actions to), to structure the flow to pipelines or sequences, or to manipulate the objects being passed between components somehow, typically by filtering the content by removing (or keeping) specified items.

The original specification of actions and their parameters was quite powerful - parameters could be computed dynamically using other actions - but also awkward to use.

So we decided to add an option of simple specification of action parameters. So, for example, instead of writing:

<s:pipeline>
    <s:search>
        <s:type>UserType</s:type>
    </s:search>
    <s:action>
        <s:type>execute-script</s:type>
        <s:parameter>
            <s:name>script</s:name>
            <c:value xsi:type="c:ScriptExpressionEvaluatorType">
                <code>
                    ...
                </code>
            </c:value>
        </s:parameter>
        <s:parameter>
            <s:name>forWholeInput</s:name>
            <c:value>false</c:value>
        </s:parameter>
        <s:parameter>
            <s:name>quiet</s:name>
            <c:value>true</c:value>
        </s:parameter>
    </s:action>
</s:pipeline>

one can simply write

<s:pipeline>
    <s:search>
        <s:type>UserType</s:type>
    </s:search>
    <s:execute>
        <s:script>
            <code>
                ...
            </code>
        </s:script>
        <s:forWholeInput>false</s:forWholeInput>
        <s:quiet>true</s:quiet>
    </s:execute>
</s:pipeline>

Moreover, we can rely on all the auto-completion and schema-checking features of modern IDEs, because the definition of s:execute element and its parameters is fully described in relevant XML schema document.

Actions

For the list of actions, please see Actions. The element names are listed under "Modern name" column. If the column has no value for particular action, then the new version does not exist yet.

Comparing to versions of midPoint before 4.2, the actions themselves are basically the same as they were. In some cases, the action names were clarified. In other ones, parameters were reorganized into more logical way. But the backward compatibility is fully ensured: the old way of specifying actions is still possible; although it will be probably deprecated (and removed) in the future.

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