Package ca.uhn.fhir.jpa.binstore

Class MemoryBinaryStorageSvcImpl

java.lang.Object
ca.uhn.fhir.jpa.binstore.MemoryBinaryStorageSvcImpl
All Implemented Interfaces:
IBinaryStorageSvc
public class MemoryBinaryStorageSvcImpl extends Object implements IBinaryStorageSvc
Purely in-memory implementation of binary storage service. This is really only appropriate for testing, since it doesn't persist anywhere and is limited by the amount of available RAM.

  • Constructor Details

  • Method Details

    • storeBlob

      public StoredDetails storeBlob​(org.hl7.fhir.instance.model.api.IIdType theResourceId, String theBlobIdOrNull, String theContentType, InputStream theInputStream) throws IOException
      Description copied from interface: IBinaryStorageSvc
      Store a new binary blob
      Specified by:
      storeBlob in interface IBinaryStorageSvc
      Parameters:
      theResourceId - The resource ID that owns this blob. Note that it should not be possible to retrieve a blob without both the resource ID and the blob ID being correct.
      theBlobIdOrNull - If set, forces
      theContentType - The content type to associate with this blob
      theInputStream - An InputStream to read from. This method should close the stream when it has been fully consumed.
      Returns:
      Returns details about the stored data
      Throws:
      IOException

    • fetchBlobDetails

      public StoredDetails fetchBlobDetails​(org.hl7.fhir.instance.model.api.IIdType theResourceId, String theBlobId)
      Specified by:
      fetchBlobDetails in interface IBinaryStorageSvc

    • writeBlob

      public boolean writeBlob​(org.hl7.fhir.instance.model.api.IIdType theResourceId, String theBlobId, OutputStream theOutputStream) throws IOException
      Specified by:
      writeBlob in interface IBinaryStorageSvc
      Returns:
      Returns true if the blob was found and written, of false if the blob was not found (i.e. it was expunged or the ID was invalid)
      Throws:
      IOException

    • expungeBlob

      public void expungeBlob​(org.hl7.fhir.instance.model.api.IIdType theResourceId, String theBlobId)
      Specified by:
      expungeBlob in interface IBinaryStorageSvc

    • fetchBlob

      public byte[] fetchBlob​(org.hl7.fhir.instance.model.api.IIdType theResourceId, String theBlobId)
      Description copied from interface: IBinaryStorageSvc
      Fetch the contents of the given blob
      Specified by:
      fetchBlob in interface IBinaryStorageSvc
      Parameters:
      theResourceId - The resource ID
      theBlobId - The blob ID
      Returns:
      The payload as a byte array

    • clear

      public void clear()

    • getMaximumBinarySize

      public int getMaximumBinarySize()
      Description copied from interface: IBinaryStorageSvc
      Gets the maximum number of bytes that can be stored in a single binary file by this service. The default is Integer.MAX_VALUE
      Specified by:
      getMaximumBinarySize in interface IBinaryStorageSvc

    • setMaximumBinarySize

      public void setMaximumBinarySize​(int theMaximumBinarySize)
      Description copied from interface: IBinaryStorageSvc
      Sets the maximum number of bytes that can be stored in a single binary file by this service. The default is Integer.MAX_VALUE
      Specified by:
      setMaximumBinarySize in interface IBinaryStorageSvc
      Parameters:
      theMaximumBinarySize - The maximum size

    • getMinimumBinarySize

      public int getMinimumBinarySize()
      Description copied from interface: IBinaryStorageSvc
      Gets the minimum number of bytes that will be stored. Binary content smaller * than this threshold may be inlined even if a binary storage service * is active.
      Specified by:
      getMinimumBinarySize in interface IBinaryStorageSvc

    • setMinimumBinarySize

      public void setMinimumBinarySize​(int theMinimumBinarySize)
      Description copied from interface: IBinaryStorageSvc
      Sets the minimum number of bytes that will be stored. Binary content smaller than this threshold may be inlined even if a binary storage service is active.
      Specified by:
      setMinimumBinarySize in interface IBinaryStorageSvc

    • newBlobId

      public String newBlobId()
      Description copied from interface: IBinaryStorageSvc
      Generate a new blob ID that will be passed to IBinaryStorageSvc.storeBlob(IIdType, String, String, InputStream) later
      Specified by:
      newBlobId in interface IBinaryStorageSvc

    • shouldStoreBlob

      public boolean shouldStoreBlob​(long theSize, org.hl7.fhir.instance.model.api.IIdType theResourceId, String theContentType)
      Description copied from interface: IBinaryStorageSvc
      Give the storage service the ability to veto items from storage
      Specified by:
      shouldStoreBlob in interface IBinaryStorageSvc
      Parameters:
      theSize - How large is the item
      theResourceId - What is the resource ID it will be associated with
      theContentType - What is the content type
      Returns:
      true if the storage service should store the item

    • fetchDataBlobFromBinary

      public byte[] fetchDataBlobFromBinary​(org.hl7.fhir.instance.model.api.IBaseBinary theBaseBinary) throws IOException
      Description copied from interface: IBinaryStorageSvc
      Fetch the byte[] contents of a given Binary resource's `data` element. If the data is a standard base64encoded string that is embedded, return it. Otherwise, attempt to load the externalized binary blob via the the externalized binary storage service.
      Specified by:
      fetchDataBlobFromBinary in interface IBinaryStorageSvc
      Returns:
      The binary data blob as a byte array
      Throws:
      IOException