Package org.refcodes.hal

Interface HalClient

  • All Superinterfaces:
    org.refcodes.net.OauthTokenAccessor, org.refcodes.net.OauthTokenAccessor.OauthTokenBuilder<HalClient>, org.refcodes.net.OauthTokenAccessor.OauthTokenMutator, org.refcodes.net.OauthTokenAccessor.OauthTokenProperty
    All Known Implementing Classes:
    HalClientImpl

    public interface HalClient
extends org.refcodes.net.OauthTokenAccessor.OauthTokenProperty, org.refcodes.net.OauthTokenAccessor.OauthTokenBuilder<HalClient>
    The HalClient lets you comfortably introspect and manage (in terms of CRUD) HAL resources. You may use it reflect the data structures of entities accessible by remote HAL endpoints as well as apply CRUD operations on the introspected entities. This means that you interact completely dynamically with the HAL resource at runtime instead of having to provide static data structures at compile time. Still you may go wit static data types as we use the CanonicalMap (as well as the CanonicalMap.CanonicalMapBuilder) to operate upon the dynamic data structures. Implementations may use the HttpRestServer and it's implementations such as the HttpRestServerImpl. See also "https://en.wikipedia.org/wiki/Hypertext_Application_Language".

    • Nested Class Summary

      • Nested classes/interfaces inherited from interface org.refcodes.net.OauthTokenAccessor

        org.refcodes.net.OauthTokenAccessor.OauthTokenBuilder<B extends org.refcodes.net.OauthTokenAccessor.OauthTokenBuilder<B>>, org.refcodes.net.OauthTokenAccessor.OauthTokenMutator, org.refcodes.net.OauthTokenAccessor.OauthTokenProperty

    • Method Summary

      All Methods Instance Methods Abstract Methods Default Methods 
      Modifier and Type Method Description
      default HalData create​(java.lang.String aEntity, java.lang.Object aObj)
      Creates a new entitie's element (row) at the HAL resource consisting of the properties as of the provided CanonicalMap.
      HalData create​(java.lang.String aEntity, HalData aProperties)
      Creates a new entitie's element (row) at the HAL resource consisting of the properties as of the provided CanonicalMap.
      boolean delete​(java.lang.String aEntity, java.lang.String aId)
      Deletes an entitie's element (row) from the HAL resource.
      java.lang.String[] entities​()
      Determines the entities provided by the HAL resource.
      java.lang.String[] getExcludeEntities​()
      Gets the names of the entities to be excluded by the HalClient.
      java.lang.String[] getIncludeEntities​()
      Gets the names of the entities to be included by the HalClient.
      default HalStruct introspect​(java.lang.String aEntity)
      Introspects the provided entity at the HAL resource and returns an instance of the CanonicalMap representing the reflected data structure.
      HalStruct introspect​(java.lang.String aEntity, TraversalMode aMode)
      Introspects the provided entity at the HAL resource and returns an instance of the CanonicalMap representing the reflected data structure.
      default HalData read​(java.lang.String aEntity, java.lang.Long aId)
      Retrieves the properties with the according values for the given entity with the given ID from the HAL resource.
      default HalData read​(java.lang.String aEntity, java.lang.Long aId, TraversalMode aMode)
      Retrieves the properties with the according values for the given entity with the given ID from the HAL resource.
      HalData read​(java.lang.String aEntity, java.lang.Long aId, TraversalMode aMode, org.refcodes.net.FormFields aQueryFields)
      Retrieves the properties with the according values for the given entity with the given ID from the HAL resource.
      default HalData read​(java.lang.String aEntity, java.lang.Long aId, org.refcodes.net.FormFields aQueryFields)
      Retrieves the properties with the according values for the given entity with the given ID from the HAL resource.
      default java.util.List<HalData> readAll​(java.lang.String aEntity)
      Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource.
      default java.util.List<HalData> readAll​(java.lang.String aEntity, TraversalMode aMode)
      Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource.
      java.util.List<HalData> readAll​(java.lang.String aEntity, TraversalMode aMode, org.refcodes.net.FormFields aQueryFields)
      Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource.
      default java.util.List<HalData> readAll​(java.lang.String aEntity, org.refcodes.net.FormFields aQueryFields)
      Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource.
      void setExcludeEntities​(java.lang.String[] entities)
      Sets the names of the entities to be excluded by the HalClient.
      void setIncludeEntities​(java.lang.String[] entities)
      Sets the names of the entities to be included by the HalClient.
      default HalData update​(java.lang.String aEntity, java.lang.Object aObj)
      Creates a new entitie's element (row) at the HAL resource consisting of the properties as of the provided CanonicalMap.
      HalData update​(java.lang.String aEntity, java.lang.String aId, HalData aProperties)
      Updates an existing entitie's element (row) at the HAL resource using the properties as of the provided CanonicalMap.
      default HalClient withExcludeEntities​(java.lang.String[] entities)
      Sets the names of the entities to be excluded by the HalClient.
      default HalClient withIncludeEntities​(java.lang.String[] entities)
      Sets the names of the entities to be included by the HalClient.
      default HalClient withOAuthToken​(org.refcodes.net.OauthToken aOauthToken)

      • Methods inherited from interface org.refcodes.net.OauthTokenAccessor

        getOauthToken

      • Methods inherited from interface org.refcodes.net.OauthTokenAccessor.OauthTokenMutator

        setOauthToken

    • Method Detail

      • withOAuthToken

        default HalClient withOAuthToken​(org.refcodes.net.OauthToken aOauthToken)
        Specified by:
        withOAuthToken in interface org.refcodes.net.OauthTokenAccessor.OauthTokenBuilder<HalClient>

      • getExcludeEntities

        java.lang.String[] getExcludeEntities​()
        Gets the names of the entities to be excluded by the HalClient.
        Returns:
        The entities to be excluded.

      • setExcludeEntities

        void setExcludeEntities​(java.lang.String[] entities)
        Sets the names of the entities to be excluded by the HalClient.
        Parameters:
        entities - The entities to be excluded.

      • withExcludeEntities

        default HalClient withExcludeEntities​(java.lang.String[] entities)
        Sets the names of the entities to be excluded by the HalClient.
        Parameters:
        entities - The entities to be excluded.
        Returns:
        This instance ass of the builder pattern.

      • getIncludeEntities

        java.lang.String[] getIncludeEntities​()
        Gets the names of the entities to be included by the HalClient.
        Returns:
        The entities to be included.

      • setIncludeEntities

        void setIncludeEntities​(java.lang.String[] entities)
        Sets the names of the entities to be included by the HalClient.
        Parameters:
        entities - The entities to be included.

      • withIncludeEntities

        default HalClient withIncludeEntities​(java.lang.String[] entities)
        Sets the names of the entities to be included by the HalClient.
        Parameters:
        entities - The entities to be included.
        Returns:
        This instance ass of the builder pattern.

      • entities

        java.lang.String[] entities​()
                     throws org.refcodes.net.HttpStatusException
        Determines the entities provided by the HAL resource.
        Returns:
        A String array with the according entity names.
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • introspect

        default HalStruct introspect​(java.lang.String aEntity)
                      throws org.refcodes.net.HttpStatusException
        Introspects the provided entity at the HAL resource and returns an instance of the CanonicalMap representing the reflected data structure. By default, Meta-Data is included in the result. If otherwise required, use introspect(String, TraversalMode).
        Parameters:
        aEntity - The entity to be introspected.
        Returns:
        A CanonicalMap instance representing the structure of the entity, e.g. providing the attribute names and the data types as well as other constraints representing the layout of the entity (think of a class defining the layout of its instances).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • introspect

        HalStruct introspect​(java.lang.String aEntity,
                     TraversalMode aMode)
              throws org.refcodes.net.HttpStatusException
        Introspects the provided entity at the HAL resource and returns an instance of the CanonicalMap representing the reflected data structure.
        Parameters:
        aEntity - The entity to be introspected.
        aMode - The mode of operation whilst introspecting an entity: You may include MetaData as of TraversalMode.IMPORT_CHILDREN_KEEP_DANGLING_HREFS or just retrieve the plain data structure without Meta-Data as of TraversalMode.IMPORT_CHILDREN.
        Returns:
        A CanonicalMap instance representing the structure of the entity, e.g. providing the attribute names and the data types as well as other constraints representing the layout of the entity (think of a class defining the layout of its instances).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • create

        HalData create​(java.lang.String aEntity,
               HalData aProperties)
        throws org.refcodes.net.HttpStatusException
        Creates a new entitie's element (row) at the HAL resource consisting of the properties as of the provided CanonicalMap.
        Parameters:
        aEntity - The entity for which to create the element (row).
        aProperties - The CanonicalMap containing the properties of the entity be created.
        Returns:
        A HalData with the newly created element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • create

        default HalData create​(java.lang.String aEntity,
                       java.lang.Object aObj)
                throws org.refcodes.net.HttpStatusException
        Creates a new entitie's element (row) at the HAL resource consisting of the properties as of the provided CanonicalMap.
        Parameters:
        aEntity - The entity for which to create the element (row).
        aObj - The Object from which the properties are retrieved by means of reflection for the entity be created.
        Returns:
        A HalData with the newly created element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • read

        default HalData read​(java.lang.String aEntity,
                     java.lang.Long aId)
              throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values for the given entity with the given ID from the HAL resource. Any HREF resources are ignored put the link is preserved, e.g. as of TraversalMode.IMPORT_CHILDREN_KEEP_DANGLING_HREFS.
        Parameters:
        aEntity - The entity for which to retrieve the properties.
        aId - The ID of the entity for which to retrieve the properties.
        Returns:
        A CanonicalMap with the property names assigned to the according values.
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • read

        default HalData read​(java.lang.String aEntity,
                     java.lang.Long aId,
                     org.refcodes.net.FormFields aQueryFields)
              throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values for the given entity with the given ID from the HAL resource. Any HREF resources are ignored put the link is preserved, e.g. as of TraversalMode.IMPORT_CHILDREN_KEEP_DANGLING_HREFS.
        Parameters:
        aEntity - The entity for which to retrieve the properties.
        aId - The ID of the entity for which to retrieve the properties.
        aQueryFields - The query fields to be appended to the requesting URL.
        Returns:
        A CanonicalMap with the property names assigned to the according values.
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • read

        default HalData read​(java.lang.String aEntity,
                     java.lang.Long aId,
                     TraversalMode aMode)
              throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values for the given entity with the given ID from the HAL resource.
        Parameters:
        aEntity - The entity for which to retrieve the properties.
        aId - The ID of the entity for which to retrieve the properties.
        aMode - The mode for handling HREF resources, e.g. load them as well or ignore them.
        Returns:
        A CanonicalMap with the property names assigned to the according values.
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • read

        HalData read​(java.lang.String aEntity,
             java.lang.Long aId,
             TraversalMode aMode,
             org.refcodes.net.FormFields aQueryFields)
      throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values for the given entity with the given ID from the HAL resource.
        Parameters:
        aEntity - The entity for which to retrieve the properties.
        aId - The ID of the entity for which to retrieve the properties.
        aMode - The mode for handling HREF resources, e.g. load them as well or ignore them.
        aQueryFields - The query fields to be appended to the requesting URL.
        Returns:
        A CanonicalMap with the property names assigned to the according values.
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • readAll

        default java.util.List<HalData> readAll​(java.lang.String aEntity)
                                 throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource. Any HREF resources are ignored put the link is preserved, e.g. as of TraversalMode.IMPORT_CHILDREN_KEEP_DANGLING_HREFS.
        Parameters:
        aEntity - The entity for which to retrieve the properties of all elements (rows).
        Returns:
        A CanonicalMap array with the property names assigned to the according values. one CanonicalMap instance per element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • readAll

        default java.util.List<HalData> readAll​(java.lang.String aEntity,
                                        org.refcodes.net.FormFields aQueryFields)
                                 throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource. Any HREF resources are ignored put the link is preserved, e.g. as of TraversalMode.IMPORT_CHILDREN_KEEP_DANGLING_HREFS.
        Parameters:
        aEntity - The entity for which to retrieve the properties of all elements (rows).
        aQueryFields - The query fields to be appended to the requesting URL.
        Returns:
        A CanonicalMap array with the property names assigned to the according values. one CanonicalMap instance per element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • readAll

        default java.util.List<HalData> readAll​(java.lang.String aEntity,
                                        TraversalMode aMode)
                                 throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource.
        Parameters:
        aEntity - The entity for which to retrieve the properties of all elements (rows).
        aMode - The mode for handling HREF resources, e.g. load them as well or ignore them.
        Returns:
        A CanonicalMap array with the property names assigned to the according values. one CanonicalMap instance per element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • readAll

        java.util.List<HalData> readAll​(java.lang.String aEntity,
                                TraversalMode aMode,
                                org.refcodes.net.FormFields aQueryFields)
                         throws org.refcodes.net.HttpStatusException
        Retrieves the properties with the according values of all elements (rows) for the given entity from the HAL resource.
        Parameters:
        aEntity - The entity for which to retrieve the properties of all elements (rows).
        aMode - The mode for handling HREF resources, e.g. load them as well or ignore them.
        aQueryFields - The query fields to be appended to the requesting URL.
        Returns:
        A CanonicalMap array with the property names assigned to the according values. one CanonicalMap instance per element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • update

        default HalData update​(java.lang.String aEntity,
                       java.lang.Object aObj)
                throws org.refcodes.net.HttpStatusException
        Creates a new entitie's element (row) at the HAL resource consisting of the properties as of the provided CanonicalMap.
        Parameters:
        aEntity - The entity for which to create the element (row).
        aObj - The Object from which the properties are retrieved by means of reflection for the entity be created.
        Returns:
        A HalData with the newly created element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • update

        HalData update​(java.lang.String aEntity,
               java.lang.String aId,
               HalData aProperties)
        throws org.refcodes.net.HttpStatusException
        Updates an existing entitie's element (row) at the HAL resource using the properties as of the provided CanonicalMap.
        Parameters:
        aEntity - The entity for which to update the element (row).
        aId - The ID of the element (row) of the entity to be updated.
        aProperties - The CanonicalMap containing the properties of the entity to be updated.
        Returns:
        The updated representation of the entitie's element (row).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.

      • delete

        boolean delete​(java.lang.String aEntity,
               java.lang.String aId)
        throws org.refcodes.net.HttpStatusException
        Deletes an entitie's element (row) from the HAL resource.
        Parameters:
        aEntity - The entity for which to delete the element (row).
        aId - The ID of the element (row) of the entity to be deleted.
        Returns:
        True in case the element (row) has been deleted, false if there was none such element (row) at the HAL resource (the expectation is satisfied now as there is no element (row) with the given ID in the HAL resource after the operation).
        Throws:
        org.refcodes.net.HttpStatusException - Thrown in case a HTTP response was of an erroneous status.