Class GridFSUploadStream

java.lang.Object
java.io.OutputStream
com.mongodb.client.gridfs.GridFSUploadStream
All Implemented Interfaces:
Closeable, Flushable, AutoCloseable

@NotThreadSafe public abstract class GridFSUploadStream extends OutputStream
A GridFS OutputStream for uploading data into GridFS

Provides the id for the file to be uploaded as well as the write methods of a OutputStream

This implementation of a OutputStream will not throw IOExceptions. However, it will throw a MongoException if there is an error writing to MongoDB.

Since:
3.1
  • Constructor Details

    • GridFSUploadStream

      public GridFSUploadStream()
  • Method Details

    • getObjectId

      public abstract ObjectId getObjectId()
      Gets the ObjectId for the file to be uploaded or throws an error if an alternative BsonType has been used for the id.

      Throws a MongoGridFSException if the file id is not an ObjectId.

      Returns:
      the ObjectId for the file to be uploaded
    • getId

      public abstract BsonValue getId()
      Gets the BsonValue for the file to be uploaded
      Returns:
      the BsonValue for the file to be uploaded
    • abort

      public abstract void abort()
      Aborts the upload and deletes any data.
    • write

      public abstract void write(int b)
      Specified by:
      write in class OutputStream
    • write

      public abstract void write(byte[] b)
      Overrides:
      write in class OutputStream
    • write

      public abstract void write(byte[] b, int off, int len)
      Overrides:
      write in class OutputStream
    • flush

      public void flush()
      Specified by:
      flush in interface Flushable
      Overrides:
      flush in class OutputStream
    • close

      public abstract void close()
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Overrides:
      close in class OutputStream