org.apache.stanbol.entityhub.servicesapi.util.ModelUtils.getAboutRepresentation java code examples

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Representation data;
Representation metadata = null;
String entityId = ModelUtils.getAboutRepresentation(rep);
if(entityId != null){
  data = entityhubYard.getRepresentation(entityId);

/**
 * Checks if the parsed Entity can be wrapped as a locally managed entity.
 * This checks currently of a {@link ManagedEntityState} is defined by the
 * metadata.
 * @param entity the entity to check
 * @return the state
 */
public static boolean canWrap(Entity entity) {
  //check the metadata for
  //if the entity is managed locally
  //if the entity has an state
  Reference stateUri = entity.getMetadata().getFirstReference(STATE);
  if(stateUri == null ||
      !ManagedEntityState.isState(stateUri.getReference())){
    return false;
  }
  //check the about
  String entityId = ModelUtils.getAboutRepresentation(entity.getMetadata());
  if(entityId == null || !entityId.equals(entity.getRepresentation().getId())){
    return false;
  }
  return true;
}
/**

/**
 * Checks if the parsed Entity can be wrapped as a locally managed entity.
 * This checks currently of a {@link ManagedEntityState} is defined by the
 * metadata.
 * @param entity the entity to check
 * @return the state
 */
public static boolean canWrap(Entity entity) {
  //check the metadata for
  //if the entity is managed locally
  //if the entity has an state
  Reference stateUri = entity.getMetadata().getFirstReference(STATE);
  if(stateUri == null ||
      !ManagedEntityState.isState(stateUri.getReference())){
    return false;
  }
  //check the about
  String entityId = ModelUtils.getAboutRepresentation(entity.getMetadata());
  if(entityId == null || !entityId.equals(entity.getRepresentation().getId())){
    return false;
  }
  return true;
}
/**

Representation data;
Representation metadata = null;
String entityId = ModelUtils.getAboutRepresentation(rep);
if(entityId != null){
  data = entityhubYard.getRepresentation(entityId);

/**
 * Sets the parsed default state to the metadata if no other one is already
 * present and that wraps the entity as locally managed entity.
 * @param entity the entity
 * @param defaultState the default state used if no one is yet defined for
 * this entity
 * @return the wrapped entity
 */
public static ManagedEntity init(Entity entity, ManagedEntityState defaultState){
  Reference stateUri = entity.getMetadata().getFirstReference(STATE);
  if(stateUri == null ||
      !ManagedEntityState.isState(stateUri.getReference())){
    entity.getMetadata().setReference(STATE, defaultState.getUri());
  }
  String entityId = ModelUtils.getAboutRepresentation(entity.getMetadata());
  if(entityId == null){
    entity.getMetadata().setReference(
      RdfResourceEnum.aboutRepresentation.getUri(), 
      entity.getRepresentation().getId());
  } else if(!entityId.equals(entity.getRepresentation().getId())){
    //the metadata are about a different Entity ->
    throw new IllegalArgumentException(String.format(
      "The Metadata of the parsed Entity are not about the Entity ("+
      "entity: %s | metadataId: %s | metadataAbout: %s)",
      entity.getRepresentation().getId(),entity.getMetadata().getId(),
      entityId));
  }//else the ID value is OK
  return new ManagedEntity(entity,false);
}

/**
 * Sets the parsed default state to the metadata if no other one is already
 * present and that wraps the entity as locally managed entity.
 * @param entity the entity
 * @param defaultState the default state used if no one is yet defined for
 * this entity
 * @return the wrapped entity
 */
public static ManagedEntity init(Entity entity, ManagedEntityState defaultState){
  Reference stateUri = entity.getMetadata().getFirstReference(STATE);
  if(stateUri == null ||
      !ManagedEntityState.isState(stateUri.getReference())){
    entity.getMetadata().setReference(STATE, defaultState.getUri());
  }
  String entityId = ModelUtils.getAboutRepresentation(entity.getMetadata());
  if(entityId == null){
    entity.getMetadata().setReference(
      RdfResourceEnum.aboutRepresentation.getUri(), 
      entity.getRepresentation().getId());
  } else if(!entityId.equals(entity.getRepresentation().getId())){
    //the metadata are about a different Entity ->
    throw new IllegalArgumentException(String.format(
      "The Metadata of the parsed Entity are not about the Entity ("+
      "entity: %s | metadataId: %s | metadataAbout: %s)",
      entity.getRepresentation().getId(),entity.getMetadata().getId(),
      entityId));
  }//else the ID value is OK
  return new ManagedEntity(entity,false);
}

Javadoc

Getter for the id of the Entity the parsed Representationare RdfResourceEnum#aboutRepresentation.

Popular methods of ModelUtils

asCollection
Copies all elements of the parsed Iterator to a ArrayList. To use other Set implementations that Arr
checkValues
Processes a value parsed as object to the representation. This processing includes: * Removal of nu
getRepresentationInfo
String representation of the parsed Representation inteded for DEBUG level loggings.
addToCollection
Adds the elements of the Iterator to the parsed Collection
getNamespaceLocalName
Splits up a URI in local name and namespace based on the following rules * If URI starts with "u
asSet
Copies all elements of the parsed Iterator to a HashSet. To use other Set implementations that HashS
addToSet
Adds the elements of the Iterator to the parsed Set
randomUUID
TODO: Maybe we need a better way to generate unique IDs

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How to use getAboutRepresentationmethodin org.apache.stanbol.entityhub.servicesapi.util.ModelUtils

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How to use
getAboutRepresentation
method
in
org.apache.stanbol.entityhub.servicesapi.util.ModelUtils