Public

Tries to delete all blobs for the given job from storage.NOTE: This also tries
to delete any created

deleteAll

Tries to delete a blob from storage.NOTE: This also tries to delete any created
directories if empty

delete

ArrayList

Finding current android device location

The BufferedImage subclass describes an java.awt.Image with an accessible buffer
of image data. All 

java.awt.image.BufferedImage

This SocketException may be thrown during socket creation or setting options,
and is the superclass 

java.net.SocketException

A Uniform Resource Identifier that identifies an abstract or physical resource,
as specified by RFC 

java.net.URI

Vector is an implementation of List, backed by an array and synchronized. All
optional operations in

java.util.Vector

org.hamcrest.core.IsNull

scala.Option

setScale

Return the contained value, if present, otherwise throw an exception to be
created by the provided s

orElseThrow

findViewById

/**
	 * Method which retrieves the URL of a file associated with a blob key. The blob server looks
	 * the blob key up in its local storage. If the file exists, then the URL is returned. If the
	 * file does not exist, then a FileNotFoundException is thrown.
	 *
	 * @param requiredBlob blob key associated with the requested file
	 * @return URL of the file
	 * @throws IOException
	 */

/**
	 * Helper to retrieve the local path of a file associated with a job and a blob key.
	 *
	 * <p>The blob server looks the blob key up in its local storage. If the file exists, it is
	 * returned. If the file does not exist, it is retrieved from the HA blob store (if available)
	 * or a {@link FileNotFoundException} is thrown.
	 *
	 * <p><strong>Assumes the read lock has already been acquired.</strong>
	 *
	 * @param jobId
	 * 		ID of the job this blob belongs to (or <tt>null</tt> if job-unrelated)
	 * @param blobKey
	 * 		blob key associated with the requested file
	 * @param localFile
	 *      (local) file where the blob is/should be stored
	 *
	 * @throws IOException
	 * 		Thrown if the file retrieval failed.
	 */

// assume readWriteLock.readLock() was already locked (cannot really check that)

// regarding concurrent operations, it is not really important which timestamp makes

// it into the map as they are close to each other anyway, also we can simply

// overwrite old values as long as we are in the read (or write) lock

// first we have to release the read lock in order to acquire the write lock

// use a temporary file (thread-safe without locking)

// delete incomingFile from a failed download

"Could not delete the staging file {} for blob key {} and job {}."

// re-acquire lock so that it can be unlocked again outside

/**
	 * Handles an incoming GET request from a BLOB client.
	 * 
	 * @param inputStream
	 *        the input stream to read incoming data from
	 * @param outputStream
	 *        the output stream to send data back to the client
	 * @param buf
	 *        an auxiliary buffer for data serialization/deserialization
	 * @throws IOException
	 *         thrown if an I/O error occurs while reading/writing data from/to the respective streams
	 */

/**
		 * Retrieve the file from the (distributed?) BLOB store and store it
		 * locally, then send it to the service which requested it.
		 *
		 * Instead, we could send it from the distributed store directly but
		 * chances are high that if there is one request, there will be more
		 * so a local cache makes more sense.
		 */

// up to here, an error can give a good message

// since we are in an exception case, it means not much that we could not send the error

"Blob file {} has downloaded from the BlobStore by a different connection."

"BLOB size exceeds the maximum size (2 GB)."

// from here on, we started sending data, so all we can do is close the connection when something happens

// happens when the other side disconnects

How to use getmethodin org.apache.flink.runtime.blob.BlobStore

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get
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org.apache.flink.runtime.blob.BlobStore