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GSFile

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com.google.appengine.api.files.dev

Class GSFile



  • public class GSFile
    extends FileMetadata
    A Google Cloud Storage object represented by a local file in blobstore. Appendable versions of GSFiles have paths of the form /gs/writable:random?name=bucket%2fkey. Unfinalized bytes are stored in memory. Finalizing an object copies the bytes to a local blobstore file, which is accessible at /gs/bucket/key.
    • Field Detail

      • FILE_SYSTEM

        public static final java.lang.String FILE_SYSTEM
      • CREATION_HANDLE_PREFIX

        public static final java.lang.String CREATION_HANDLE_PREFIX
        See Also:
        Constant Field Values
    • Method Detail

      • buildWritablePath

        public static java.lang.String buildWritablePath(java.lang.String randomString,
                                                         java.lang.String fileName)
      • create

        public static FileMetadata create(LocalFileService localFileService,
                                          Clock clock,
                                          java.lang.String fileName,
                                          java.lang.String randomString,
                                          ContentType contentType,
                                          java.util.Map<java.lang.String,java.lang.String> parameters)
        Creates a new instance. There are two cases: 1) A create request 2) A read request for a special read-only file.
      • getBlobInfo

        public com.google.appengine.api.blobstore.BlobInfo getBlobInfo()
        Specified by:
        getBlobInfo in class FileMetadata
        Returns:
        the BlobInfo of the file. File must have been finalized.
      • getOutputStream

        protected java.io.OutputStream getOutputStream()
                                                throws java.io.IOException
        Specified by:
        getOutputStream in class FileMetadata
        Throws:
        java.io.IOException
      • getInputStream

        protected java.io.InputStream getInputStream()
                                              throws java.io.IOException
        Specified by:
        getInputStream in class FileMetadata
        Throws:
        java.io.IOException