protected void validateArtifactMap()

in opennlp-tools/src/main/java/opennlp/tools/util/model/BaseModel.java [442:514]
56 lines of code
16 McCabe index (conditional complexity)

  protected void validateArtifactMap() throws InvalidFormatException {
    if (!(artifactMap.get(MANIFEST_ENTRY) instanceof Properties))
      throw new InvalidFormatException("Missing the " + MANIFEST_ENTRY + "!");

    // First check version, everything else might change in the future
    String versionString = getManifestProperty(VERSION_PROPERTY);

    if (versionString != null) {
      Version version;

      try {
        version = Version.parse(versionString);
      }
      catch (NumberFormatException e) {
        throw new InvalidFormatException("Unable to parse model version '" + versionString + "'!", e);
      }

      // Version check is only performed if current version is not the dev/debug version
      if (!Version.currentVersion().equals(Version.DEV_VERSION)) {
        // Support OpenNLP 1.x models.
        if (version.getMajor() != 1 && version.getMajor() != 2) {
          throw new InvalidFormatException("Model version " + version + " is not supported by this ("
              + Version.currentVersion() + ") version of OpenNLP!");
        }

        // Reject loading a snapshot model with a non-snapshot version
        if (!Version.currentVersion().isSnapshot() && version.isSnapshot()) {
          throw new InvalidFormatException("Model version " + version
              + " is a snapshot - snapshot models are not supported by this non-snapshot version ("
              + Version.currentVersion() + ") of OpenNLP!");
        }
      }
    }
    else {
      throw new InvalidFormatException("Missing " + VERSION_PROPERTY + " property in " +
            MANIFEST_ENTRY + "!");
    }

    if (getManifestProperty(COMPONENT_NAME_PROPERTY) == null)
      throw new InvalidFormatException("Missing " + COMPONENT_NAME_PROPERTY + " property in " +
            MANIFEST_ENTRY + "!");

    if (!getManifestProperty(COMPONENT_NAME_PROPERTY).equals(componentName))
        throw new InvalidFormatException("The " + componentName + " cannot load a model for the " +
            getManifestProperty(COMPONENT_NAME_PROPERTY) + "!");

    if (getManifestProperty(LANGUAGE_PROPERTY) == null)
      throw new InvalidFormatException("Missing " + LANGUAGE_PROPERTY + " property in " +
          MANIFEST_ENTRY + "!");

    // Validate the factory. We try to load it using the ExtensionLoader. It
    // will return the factory, null or raise an exception
    String factoryName = getManifestProperty(FACTORY_NAME);
    if (factoryName != null) {
      try {
        if (ExtensionLoader.instantiateExtension(BaseToolFactory.class,
            factoryName) == null) {
          throw new InvalidFormatException(
              "Could not load an user extension specified by the model: "
                  + factoryName);
        }
      } catch (Exception e) {
        throw new InvalidFormatException(
            "Could not load an user extension specified by the model: "
                + factoryName, e);
      }
    }

    // validate artifacts declared by the factory
    if (toolFactory != null) {
      toolFactory.validateArtifactMap();
    }
  }