Package ca.uhn.fhir.jpa.binary.svc

Class BaseBinaryStorageSvcImpl

java.lang.Object

ca.uhn.fhir.jpa.binary.svc.BaseBinaryStorageSvcImpl

All Implemented Interfaces:

IBinaryStorageSvc

Direct Known Subclasses:

FilesystemBinaryStorageSvcImpl, MemoryBinaryStorageSvcImpl

public abstract class BaseBinaryStorageSvcImpl
extends Object
implements IBinaryStorageSvc

Field Summary

Fields

Modifier and Type	Field	Description
static long	DEFAULT_MAXIMUM_BINARY_SIZE

Constructor Summary

Constructors

Constructor	Description
BaseBinaryStorageSvcImpl()

Method Summary

Modifier and Type	Method	Description
protected org.apache.commons.io.input.CountingInputStream	createCountingInputStream(InputStream theInputStream)
protected com.google.common.hash.HashingInputStream	createHashingInputStream(InputStream theInputStream)
byte[]	fetchDataBlobFromBinary(org.hl7.fhir.instance.model.api.IBaseBinary theBaseBinary)	Fetch the byte[] contents of a given Binary resource's `data` element.
long	getMaximumBinarySize()	Gets the maximum number of bytes that can be stored in a single binary file by this service.
int	getMinimumBinarySize()	Gets the minimum number of bytes that will be stored.
String	newBlobId()	Generate a new blob ID that will be passed to IBinaryStorageSvc.storeBlob(IIdType, String, String, InputStream) later
protected String	provideIdForNewBlob(String theBlobIdOrNull)
void	setMaximumBinarySize(long theMaximumBinarySize)	Sets the maximum number of bytes that can be stored in a single binary file by this service.
void	setMinimumBinarySize(int theMinimumBinarySize)	Sets the minimum number of bytes that will be stored.
boolean	shouldStoreBlob(long theSize, org.hl7.fhir.instance.model.api.IIdType theResourceId, String theContentType)	Give the storage service the ability to veto items from storage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ca.uhn.fhir.jpa.binary.api.IBinaryStorageSvc

expungeBlob, fetchBlob, fetchBlobDetails, storeBlob, writeBlob

Field Details

DEFAULT_MAXIMUM_BINARY_SIZE

public static long DEFAULT_MAXIMUM_BINARY_SIZE

Constructor Details

BaseBinaryStorageSvcImpl

public BaseBinaryStorageSvcImpl()

Method Details

getMaximumBinarySize

public long 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 Long.MAX_VALUE

Specified by:

getMaximumBinarySize in interface IBinaryStorageSvc

setMaximumBinarySize

public void setMaximumBinarySize(long 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 Long.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

createHashingInputStream

@Nonnull
protected com.google.common.hash.HashingInputStream createHashingInputStream(InputStream theInputStream)

createCountingInputStream

@Nonnull
protected org.apache.commons.io.input.CountingInputStream createCountingInputStream(InputStream theInputStream)

provideIdForNewBlob

protected String provideIdForNewBlob(String theBlobIdOrNull)

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