org.modeshape.jcr.value.binary
Class DatabaseBinaryStore

java.lang.Object
  org.modeshape.jcr.value.binary.AbstractBinaryStore
      org.modeshape.jcr.value.binary.DatabaseBinaryStore

All Implemented Interfaces:

BinaryStore

@ThreadSafe
public class DatabaseBinaryStore
extends AbstractBinaryStore

A BinaryStore implementation that uses a database for persisting binary values.

Field Summary

Fields inherited from class org.modeshape.jcr.value.binary.AbstractBinaryStore

logger, MEDIUM_BUFFER_SIZE

Constructor Summary

DatabaseBinaryStore(String datasourceJNDILocation)
Create new store that uses the JDBC DataSource in the given JNDI location.

DatabaseBinaryStore(String driverClass, String connectionURL, String username, String password)
Create new store.

Method Summary

protected Database	doCreateDatabase(Connection connection)
Iterable<BinaryKey>	getAllBinaryKeys() Obtain an iterable implementation containing all of the store's binary keys.
String	getExtractedText(BinaryValue source) Returns the extracted text of a binary value, or null if such text hasn't been stored previously (but the binary value can be found in the store)
InputStream	getInputStream(BinaryKey key) Get an InputStream to the binary content with the supplied key.
protected String	getStoredMimeType(BinaryValue source) Returns the stored mime-type of a binary value.
void	markAsUnused(Iterable<BinaryKey> keys) Mark the supplied binary keys as unused, but key them in quarantine until needed again (at which point they're removed from quarantine) or until BinaryStore.removeValuesUnusedLongerThan(long, TimeUnit) is called.
void	removeValuesUnusedLongerThan(long minimumAge, TimeUnit unit) Remove binary values that have been unused for at least the specified amount of time.
void	shutdown()
void	start() Initialize the store and get ready for use.
void	storeExtractedText(BinaryValue source, String extractedText) Stores the extracted text of a binary value into this store.
protected void	storeMimeType(BinaryValue source, String mimeType) Stores the given mime-type for a binary value.
BinaryValue	storeValue(InputStream stream) Store the binary value and return the JCR representation.

Methods inherited from class org.modeshape.jcr.value.binary.AbstractBinaryStore

bestBufferSize, detector, extractors, getMimeType, getMinimumBinarySizeInBytes, getText, setMimeTypeDetector, setMinimumBinarySizeInBytes, setTextExtractors

Methods inherited from class java.lang.Object

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

Constructor Detail

DatabaseBinaryStore

public DatabaseBinaryStore(String driverClass,
                           String connectionURL,
                           String username,
                           String password)

Create new store.

Parameters:

driverClass - JDBC driver class name

connectionURL - database location

username - database user name

password - database password

DatabaseBinaryStore

public DatabaseBinaryStore(String datasourceJNDILocation)

Create new store that uses the JDBC DataSource in the given JNDI location.

Parameters:

datasourceJNDILocation - the JNDI name of the JDBC Data Source that should be used, or null

Method Detail

storeValue

public BinaryValue storeValue(InputStream stream)
                       throws BinaryStoreException

Description copied from interface: BinaryStore

Store the binary value and return the JCR representation. Note that if the binary content in the supplied stream is already persisted in the store, the store may simply return the binary value referencing the existing content.

Parameters:

stream - the stream containing the binary content to be stored; may not be null

Returns:

the binary value representing the stored binary value; never null

Throws:

BinaryStoreException - if there any unexpected problem

getInputStream

public InputStream getInputStream(BinaryKey key)
                           throws BinaryStoreException

Description copied from interface: BinaryStore

Get an InputStream to the binary content with the supplied key.

Parameters:

key - the key to the binary content; never null

Returns:

the input stream through which the content can be read, never null

Throws:

BinaryStoreException - if there is a problem reading the content from the store or if a valid, non-null InputStream cannot be returned for the given key.

markAsUnused

public void markAsUnused(Iterable<BinaryKey> keys)
                  throws BinaryStoreException

Description copied from interface: BinaryStore

Mark the supplied binary keys as unused, but key them in quarantine until needed again (at which point they're removed from quarantine) or until BinaryStore.removeValuesUnusedLongerThan(long, TimeUnit) is called. This method ignores any keys for values not stored within this store.

Parameters:

keys - the keys for the binary values that are no longer needed

Throws:

BinaryStoreException - if there is a problem marking any of the supplied binary values as unused

removeValuesUnusedLongerThan

public void removeValuesUnusedLongerThan(long minimumAge,
                                         TimeUnit unit)
                                  throws BinaryStoreException

Description copied from interface: BinaryStore

Remove binary values that have been unused for at least the specified amount of time.

Parameters:

minimumAge - the minimum time that a binary value has been unused before it can be removed; must be non-negative

unit - the time unit for the minimum age; may not be null

Throws:

BinaryStoreException - if there is a problem removing the unused values

getStoredMimeType

protected String getStoredMimeType(BinaryValue source)
                            throws BinaryStoreException

Description copied from class: AbstractBinaryStore

Returns the stored mime-type of a binary value.

Specified by:

getStoredMimeType in class AbstractBinaryStore

Parameters:

source - a non-null BinaryValue

Returns:

either a non-empty String if a stored mimetype exists, or null if such a value doesn't exist yet.

Throws:

BinaryStoreException - if there's a problem accessing the binary store or if the binary value cannot be found in the store

storeMimeType

protected void storeMimeType(BinaryValue source,
                             String mimeType)
                      throws BinaryStoreException

Description copied from class: AbstractBinaryStore

Stores the given mime-type for a binary value.

Specified by:

storeMimeType in class AbstractBinaryStore

Parameters:

source - a non-null BinaryValue

mimeType - a non-empty String

Throws:

BinaryStoreException - if there's a problem accessing the binary store

getExtractedText

public String getExtractedText(BinaryValue source)
                        throws BinaryStoreException

Description copied from class: AbstractBinaryStore

Returns the extracted text of a binary value, or null if such text hasn't been stored previously (but the binary value can be found in the store)

Specified by:

getExtractedText in class AbstractBinaryStore

Parameters:

source - a non-null BinaryValue instance from which the text was extracted

Returns:

a String representing the extracted text, or null if such text hasn't been stored in this store previously.

Throws:

BinaryStoreException - if the binary value cannot be found in the store.

storeExtractedText

public void storeExtractedText(BinaryValue source,
                               String extractedText)
                        throws BinaryStoreException

Description copied from class: AbstractBinaryStore

Stores the extracted text of a binary value into this store.

Specified by:

storeExtractedText in class AbstractBinaryStore

Parameters:

source - a non-null BinaryValue instance from which the text was extracted

extractedText - a non-null and non-blank string representing the extracted text

Throws:

BinaryStoreException - if the operation fails or if the extracted text cannot be stored for the given binary value (regardless of the reason)

start

public void start()

Description copied from class: AbstractBinaryStore

Initialize the store and get ready for use.

Overrides:

start in class AbstractBinaryStore

doCreateDatabase

protected Database doCreateDatabase(Connection connection)
                             throws BinaryStoreException

Throws:

BinaryStoreException

getAllBinaryKeys

public Iterable<BinaryKey> getAllBinaryKeys()
                                     throws BinaryStoreException

Description copied from interface: BinaryStore

Obtain an iterable implementation containing all of the store's binary keys. The resulting iterator may be lazy, in the sense that it may determine additional BinaryKeys only as the iterator is used.

Returns:

the iterable set of binary keys; never null

Throws:

BinaryStoreException - if anything unexpected happens.

shutdown

public void shutdown()

Overrides:

shutdown in class AbstractBinaryStore