Examples of org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$Buffer

org.luaj.vm2.Buffer
A SSTable writer that doesn't assume rows are in sorted order. This writer buffers rows in memory and then write them all in sorted order. To avoid loading the entire data set in memory, the amount of rows buffered is configurable. Each time the threshold is met, one SSTable will be created (and the buffer be reseted). @see AbstractSSTableSimpleWriter

        buffer.add("three");
        assertEquals("Buffer get", buffer.get(), "three");
    }


    public void testRemove() {
        Buffer buffer = makeTestBuffer();
        buffer.add("one");
        assertEquals("Buffer get", buffer.remove(), "one");
        try {
            buffer.remove();
            fail("Expecting BufferUnderflowException");
        } catch (BufferUnderflowException ex) {
            // expected
        }
    }

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        String[] testCaseName = {TestTransformedBuffer.class.getName()};
        junit.textui.TestRunner.main(testCaseName);
    }


    public void testTransformedBuffer() {
        Buffer buffer = TransformedBuffer.decorate(new ArrayStack(), TestTransformedCollection.STRING_TO_INTEGER_TRANSFORMER);
        assertEquals(0, buffer.size());
        Object[] els = new Object[]{"1", "3", "5", "7", "2", "4", "6"};
        for (int i = 0; i < els.length; i++) {
            buffer.add(els[i]);
            assertEquals(i + 1, buffer.size());
            assertEquals(true, buffer.contains(new Integer((String) els[i])));
            assertEquals(false, buffer.contains(els[i]));
        }


        assertEquals(false, buffer.remove(els[0]));
        assertEquals(true, buffer.remove(new Integer((String) els[0])));


    }

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   * except as arguments to the q option. 
   */
  static Varargs format( Varargs args ) {
    LuaString fmt = args.checkstring( 1 );
    final int n = fmt.length();
    Buffer result = new Buffer(n);
    int arg = 1;
    int c;
    
    for ( int i = 0; i < n; ) {
      switch ( c = fmt.luaByte( i++ ) ) {
      case '\n':
        result.append( "\n" );
        break;
      default:
        result.append( (byte) c );
        break;
      case L_ESC:
        if ( i < n ) {
          if ( ( c = fmt.luaByte( i ) ) == L_ESC ) {
            ++i;
            result.append( (byte)L_ESC );
          } else {
            arg++;
            FormatDesc fdsc = new FormatDesc(args, fmt, i );
            i += fdsc.length;
            switch ( fdsc.conversion ) {
            case 'c':
              fdsc.format( result, (byte)args.checkint( arg ) );
              break;
            case 'i':
            case 'd':
              fdsc.format( result, args.checkint( arg ) );
              break;
            case 'o':
            case 'u':
            case 'x':
            case 'X':
              fdsc.format( result, args.checklong( arg ) );
              break;
            case 'e':
            case 'E':
            case 'f':
            case 'g':
            case 'G':
              fdsc.format( result, args.checkdouble( arg ) );
              break;
            case 'q':
              addquoted( result, args.checkstring( arg ) );
              break;
            case 's': {
              LuaString s = args.checkstring( arg );
              if ( fdsc.precision == -1 && s.length() >= 100 ) {
                result.append( s );
              } else {
                fdsc.format( result, s );
              }
            }  break;
            default:
              error("invalid option '%"+(char)fdsc.conversion+"' to 'format'");
              break;
            }
          }
        }
      }
    }
    
    return result.tostring();
  }

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    LuaString p = args.checkstring( 2 );
    LuaValue repl = args.arg( 3 );
    int max_s = args.optint( 4, srclen + 1 );
    final boolean anchor = p.length() > 0 && p.charAt( 0 ) == '^';
    
    Buffer lbuf = new Buffer( srclen );
    MatchState ms = new MatchState( args, src, p );
    
    int soffset = 0;
    int n = 0;
    while ( n < max_s ) {
      ms.reset();
      int res = ms.match( soffset, anchor ? 1 : 0 );
      if ( res != -1 ) {
        n++;
        ms.add_value( lbuf, soffset, res, repl );
      }
      if ( res != -1 && res > soffset )
        soffset = res;
      else if ( soffset < srclen )
        lbuf.append( (byte) src.luaByte( soffset++ ) );
      else
        break;
      if ( anchor )
        break;
    }
    lbuf.append( src.substring( soffset, srclen ) );
    return varargsOf(lbuf.tostring(), valueOf(n));
  }

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