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74 lines
4.0 KiB
Markdown
74 lines
4.0 KiB
Markdown
---
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title: Feature Extractor
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---
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The IntelliJ Platform IDEs will recommend a plugin for installation if the plugin provides additional features from this list:
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* Configuration Type
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* Facet Type
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* File Extensions Type
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* Module Type
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* Artifact Type
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IntelliJ Platform IDEs only show plugin suggestions in the appropriate context so they are meaningful to the user.
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The [`feature extractor`](https://github.com/JetBrains/intellij-plugin-verifier/tree/master/intellij-feature-extractor/) tool
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catalogs these types of features for a plugin. It works by statically analyzing the bytecode of a plugin to extract values
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passed to the IntelliJ Platform APIs that support extending features in the above list.
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However, if values are dynamically evaluated in a plugin, the `feature extractor` may return incomplete results.
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If you cannot find your plugin in [the list of features](https://plugins.jetbrains.com/feature/), you can either make your code
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easier for the analysis, or ask JetBrains to manually add any missed feature types.
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## Configuration Type
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When you want IDEs to show that your plugin supports Run Configuration Type, you need to implement
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[ConfigurationType](https://github.com/JetBrains/intellij-community/blob/master/platform/lang-api/src/com/intellij/execution/configurations/ConfigurationType.java)
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and implement the `getId()` method. The `feature extractor` analyzes the value of `getId()`.
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An suggestion to install plugins that support the *Run D App* Configuration Type:
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Refer to [Run Configurations](/basics/run_configurations.md) to get more information about how to declare this feature in your plugin.
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## Facet Type
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To support a Facet Type feature you should extend [FacetType](https://github.com/JetBrains/intellij-community/blob/master/platform/lang-api/src/com/intellij/facet/FacetType.java),
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and pass `stringId` to its constructor. The value of the `stringId` parameter will be analyzed by the `feature extractor`.
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An notification to install plugins that support the *jangaroo* Facet Type:
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Refer to [Facet](/reference_guide/project_model/facet.md) for additional information.
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## File Extensions Type
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A plugin can support specific types of file extensions. When there is a file with a specific extension open in an IDE, a hint will be shown to users prompting them to install your plugin.
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You should extend [FileTypeFactory](https://github.com/JetBrains/intellij-community/blob/master/platform/platform-api/src/com/intellij/openapi/fileTypes/FileTypeFactory.java)
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and feed supported file extensions in `createFileTypes(FileTypeConsumer)`. Values of `FileTypeConsumer` are analyzed by the `feature extractor`.
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An suggestion to install plugins which support the _\*.d_ Extension Type:
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Refer to [Registering a File Type](/reference_guide/custom_language_support/registering_file_type.md) to provide this feature in a plugin.
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## Module Type
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If you want IDEs to show a prompt that your plugin can support creating specific Module Types, you should extend
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[ModuleType](https://github.com/JetBrains/intellij-community/blob/master/platform/lang-api/src/com/intellij/openapi/module/ModuleType.java)
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and pass the `id` parameter for your Module Type to its constructor. The `feature extractor` will evaluate the values of `id`.
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See [Module](/reference_guide/project_model/module.md) and [Supporting Module Types](/tutorials/project_wizard/module_types.md)
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for more information about supporting Module Types.
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## Artifact Type
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To support specific Artifact Types, extend [ArtifactType](https://github.com/JetBrains/intellij-community/blob/master/java/compiler/openapi/src/com/intellij/packaging/artifacts/ArtifactType.java),
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and pass an `id` parameter to its constructor. The value of the `id` parameter is analyzed by the `feature extractor`.
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An example suggestion to enable a plugin which supports a *dm.bundle* Artifact Type:
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