Package org.alfresco.repo.web.scripts

Class TempOutputStream

  • All Implemented Interfaces:
    Closeable, Flushable, AutoCloseable
    public class TempOutputStream
extends OutputStream
    An output stream implementation that keeps the data in memory if is less then the specified memoryThreshold otherwise it writes it to a temp file.

    Close the stream before any call to TempOutputStream.getInputStream().

    If deleteTempFileOnClose is false then use proper try-finally patterns to ensure that the temp file is destroyed after it is no longer needed. 

       try
   {
      StreamUtils.copy(new BufferedInputStream(new FileInputStream(file)), tempOutputStream);
      tempOutputStream.close();
   }
   finally
   {
       tempOutputStream.destroy();
   }

    • Constructor Detail

      • TempOutputStream

        public TempOutputStream​(File tempDir,
                        int memoryThreshold,
                        long maxContentSize,
                        boolean encrypt)
        Creates a TempOutputStream.
        Parameters:
        tempDir - the temporary directory, i.e. isDir == true, that will be used as * parent directory for creating temp file backed streams
        memoryThreshold - the memory threshold in B
        maxContentSize - the max content size in B
        encrypt - true if temp files should be encrypted

    • Method Detail

      • destroy

        public void destroy()
             throws IOException
        Closes the stream and removes the backing file (if present).

        If deleteTempFileOnClose is false then use proper try-finally patterns to ensure that the temp file is destroyed after it is no longer needed. 

           try
   {
      StreamUtils.copy(new BufferedInputStream(new FileInputStream(file)), tempOutputStream);
      tempOutputStream.close();
   }
   finally
   {
       tempOutputStream.destroy();
   }
        Throws:
        IOException

      • getLength

        public long getLength()

      • factory

        public static Supplier<TempOutputStream> factory​(File tempDir,
                                                 int memoryThreshold,
                                                 long maxContentSize,
                                                 boolean encrypt)
        Creates a TempOutputStream factory/supplier.
        Parameters:
        tempDir - the temporary directory, i.e. isDir == true, that will be used as * parent directory for creating temp file backed streams
        memoryThreshold - the memory threshold in B
        maxContentSize - the max content size in B
        encrypt - true if temp files should be encrypted