Class FutureWriter

  • All Implemented Interfaces:
    java.io.Closeable, java.io.Flushable, java.lang.Appendable, java.lang.AutoCloseable

    public class FutureWriter
    extends java.io.Writer
    A Writer that will wrap around the user-provided writer if the user also provided an ExecutorService to the main PebbleEngine. A FutureWriter is capable of handling Futures that will return a string. It is not thread safe but that is okay. Each thread will have its own writer, provided by the "parallel" node; i.e. they will never share writers.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private boolean closed  
      private java.io.Writer internalWriter  
      private java.util.LinkedList<java.util.concurrent.Future<java.lang.String>> orderedFutures  
      • Fields inherited from class java.io.Writer

        lock
    • Constructor Summary

      Constructors 
      Constructor Description
      FutureWriter​(java.io.Writer writer)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      void enqueue​(java.util.concurrent.Future<java.lang.String> future)  
      void flush()  
      void write​(char[] cbuf, int off, int len)  
      • Methods inherited from class java.io.Writer

        append, append, append, nullWriter, write, write, write, write
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • orderedFutures

        private final java.util.LinkedList<java.util.concurrent.Future<java.lang.String>> orderedFutures
      • internalWriter

        private final java.io.Writer internalWriter
      • closed

        private boolean closed
    • Constructor Detail

      • FutureWriter

        public FutureWriter​(java.io.Writer writer)
    • Method Detail

      • enqueue

        public void enqueue​(java.util.concurrent.Future<java.lang.String> future)
                     throws java.io.IOException
        Throws:
        java.io.IOException
      • write

        public void write​(char[] cbuf,
                          int off,
                          int len)
                   throws java.io.IOException
        Specified by:
        write in class java.io.Writer
        Throws:
        java.io.IOException
      • flush

        public void flush()
                   throws java.io.IOException
        Specified by:
        flush in interface java.io.Flushable
        Specified by:
        flush in class java.io.Writer
        Throws:
        java.io.IOException
      • close

        public void close()
                   throws java.io.IOException
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Specified by:
        close in class java.io.Writer
        Throws:
        java.io.IOException