Package org.apache.maven.internal.impl.model

Class DefaultModelProcessor

java.lang.Object
org.apache.maven.internal.impl.model.DefaultModelProcessor
All Implemented Interfaces:
ModelProcessor
@Named @Singleton public class DefaultModelProcessor extends Object implements ModelProcessor
Note: uses @Typed to limit the types it is available for injection to just ModelProcessor. This is because the ModelProcessor interface extends ModelLocator and ModelReader. If we made this component available under all its interfaces then it could end up being injected into itself leading to a stack overflow. A side effect of using @Typed is that it translates to explicit bindings in the container. So instead of binding the component under a 'wildcard' key it is now bound with an explicit key. Since this is a default component this will be a plain binding of ModelProcessor to this implementation type, ie. no hint/name. This leads to a second side effect in that any @Inject request for just ModelProcessor in the same injector is immediately matched to this explicit binding, which means extensions cannot override this binding. This is because the lookup is always short-circuited in this specific situation (plain @Inject request, and plain explicit binding for the same type.) The simplest solution is to use a custom @Named here so it isn't bound under the plain key. This is only necessary for default components using @Typed that want to support overriding. As a non-default component this now gets a negative priority relative to other implementations of the same interface. Since we want to allow overriding this doesn't matter in this case. (if it did we could add @Priority of 0 to match the priority given to default components.)

  • Constructor Details

  • Method Details

    • locateExistingPom

      public Path locateExistingPom(Path projectDirectory)
      Description copied from interface: ModelProcessor
      Returns the file containing the pom to be parsed or null if a pom can not be found at the given file or in the given directory.
      Specified by:
      locateExistingPom in interface ModelProcessor

    • read

      public Model read(XmlReaderRequest request) throws IOException
      Description copied from interface: ModelProcessor
      Reads the model from the specified byte stream. The stream will be automatically closed before the method returns.
      Specified by:
      read in interface ModelProcessor
      Parameters:
      request - The reader request to deserialize the model, must not be null.
      Returns:
      The deserialized model, never null.
      Throws:
      IOException - If the model could not be deserialized.