Class AzureFileStore

java.lang.Object
java.nio.file.FileStore
com.azure.storage.blob.nio.AzureFileStore
public final class AzureFileStore extends FileStore
An AzureFileStore is a FileStore backed by an Azure Blob Storage container.

  • Method Details

    • name

      public String name()
      Returns the name of the container that underlies this file store.
      Specified by:
      name in class FileStore
      Returns:
      the name of the container that underlies this file store.

    • type

      public String type()
      Returns the String "AzureBlobContainer" to indicate that the file store is backed by a remote blob container in Azure Storage.
      Specified by:
      type in class FileStore
      Returns:
      "AzureBlobContainer"

    • isReadOnly

      public boolean isReadOnly()
      Always returns false.

      It may be the case that the authentication method provided to this file system only supports read operations and hence the file store is implicitly read only in this view, but that does not imply the underlying container/file store is inherently read only. Creating/specifying read only file stores is not currently supported.

      Specified by:
      isReadOnly in class FileStore
      Returns:
      false.

    • getTotalSpace

      public long getTotalSpace() throws IOException
      Returns the size, in bytes, of the file store.

      Containers do not limit the amount of data stored. This method will always return max long.

      Specified by:
      getTotalSpace in class FileStore
      Returns:
      the size of the file store.
      Throws:
      IOException - If an I/O error occurs.

    • getUsableSpace

      public long getUsableSpace() throws IOException
      Returns the number of bytes available to this Java virtual machine on the file store.

      Containers do not limit the amount of data stored. This method will always return max long.

      Specified by:
      getUsableSpace in class FileStore
      Returns:
      the number of bytes available on the file store.
      Throws:
      IOException - If an I/O error occurs.

    • getUnallocatedSpace

      public long getUnallocatedSpace() throws IOException
      Returns the number of unallocated bytes in the file store.

      Containers do not limit the amount of data stored. This method will always return max long.

      Specified by:
      getUnallocatedSpace in class FileStore
      Returns:
      the number of unallocated bytes in the file store.
      Throws:
      IOException - If an I/O error occurs.

    • supportsFileAttributeView

      public boolean supportsFileAttributeView(Class<? extends FileAttributeView> type)
      Tells whether this file store supports the file attributes identified by the given file attribute view.

      All file stores in this file system support the following views:

      Specified by:
      supportsFileAttributeView in class FileStore
      Parameters:
      type - the file attribute view type
      Returns:
      Whether the file attribute view is supported.

    • supportsFileAttributeView

      public boolean supportsFileAttributeView(String name)
      Tells whether this file store supports the file attributes identified by the given file attribute view.

      All file stores in this file system support the following views:

      Specified by:
      supportsFileAttributeView in class FileStore
      Parameters:
      name - the name of the file attribute view
      Returns:
      whether the file attribute view is supported.

    • getFileStoreAttributeView

      public <V extends FileStoreAttributeView> V getFileStoreAttributeView(Class<V> aClass)
      Returns a FileStoreAttributeView of the given type.

      This method always returns null as no FileStoreAttributeView is currently supported.

      Specified by:
      getFileStoreAttributeView in class FileStore
      Parameters:
      aClass - a class
      Returns:
      null

    • getAttribute

      public Object getAttribute(String s) throws IOException
      Unsupported.

      This method always throws an UnsupportedOperationException as no FileStoreAttributeView is currently supported.

      Specified by:
      getAttribute in class FileStore
      Parameters:
      s - a string
      Returns:
      The attribute value.
      Throws:
      UnsupportedOperationException - unsupported
      IOException - never