org.modeshape.jcr.value.binary

## Class MongodbBinaryStore

- java.lang.Object
- - org.modeshape.jcr.value.binary.AbstractBinaryStore
  - - org.modeshape.jcr.value.binary.MongodbBinaryStore

- All Implemented Interfaces:
    BinaryStore

      public class MongodbBinaryStore
      extends AbstractBinaryStore

  A `BinaryStore` implementation that uses a MongoDB for persisting binary values.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected int` | `chunkSize`
    `protected static BasicDBObject` | `DATA_CHUNK`
    `protected static BasicDBObject` | `HEADER`

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

      `logger, MEDIUM_BUFFER_SIZE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `MongodbBinaryStore()`
    `MongodbBinaryStore(String host, int port, String database)` Creates a new instance of the store, using a single MongoDB.
    `MongodbBinaryStore(String database, Set<String> replicaSet)` Creates new store.
    `MongodbBinaryStore(String database, String username, String password, Set<String> replicaSet)` Creates new store.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Iterable<BinaryKey>` | `getAllBinaryKeys()` Obtain an iterable implementation containing all of the store's binary keys.
    `int` | `getChunkSize()` Gets the size of the chunk used to store content.
    `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` | `setChunkSize(int chunkSize)` Modifies chunk size used to store content.
    `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, hasBinary, setMimeTypeDetector, setMinimumBinarySizeInBytes, setTextExtractors, shutdown, storeValue`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### HEADER

          protected static final BasicDBObject HEADER

    - #### DATA_CHUNK

          protected static final BasicDBObject DATA_CHUNK

    - #### chunkSize

          protected int chunkSize

  - ### Constructor Detail

    - #### MongodbBinaryStore

          public MongodbBinaryStore()

    - #### MongodbBinaryStore

          public MongodbBinaryStore(String database,
                            Set<String> replicaSet)

      Creates new store.
      Parameters:
        `database` - database name
        `replicaSet` - list of server addresses in the form 'host:port' or null for localhost

    - #### MongodbBinaryStore

          public MongodbBinaryStore(String database,
                            String username,
                            String password,
                            Set<String> replicaSet)

      Creates new store.
      Parameters:
        `database` - database name
        `username` - database user
        `password` - user's password
        `replicaSet` - list of server addresses in the form 'host:port' or null for localhost

    - #### MongodbBinaryStore

          public MongodbBinaryStore(String host,
                            int port,
                            String database)

      Creates a new instance of the store, using a single MongoDB.
      Parameters:
        `host` -
        `port` -
        `database` -

  - ### Method Detail

    - #### getChunkSize

          public int getChunkSize()

      Gets the size of the chunk used to store content.
      Returns:
        chunk size in bytes.

    - #### setChunkSize

          public void setChunkSize(int chunkSize)

      Modifies chunk size used to store content.
      Parameters:
        `chunkSize` - chunk size in bytes.

    - #### 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)

      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

    - #### removeValuesUnusedLongerThan

          public void removeValuesUnusedLongerThan(long minimumAge,
                                          TimeUnit unit)

      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

    - #### 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

    - #### 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

    - #### 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)

    - #### 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.

    - #### getAllBinaryKeys

          public Iterable<BinaryKey> getAllBinaryKeys()

      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 `BinaryKey`s only as the iterator is used.
      Returns:
        the iterable set of binary keys; never null

    - #### start

          public void start()

      Description copied from interface: `BinaryStore`
      Initialize the store and get ready for use.
      Specified by:
        `start` in interface `BinaryStore`
      Overrides:
        `start` in class `AbstractBinaryStore`

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