Examples of java.nio.ByteBuffer.clear()

java.nio.ByteBuffer.clear()


        // flush trailing encoded characters...
        if (buf.position() > 0)
        {
            sb.append(decode(buf, decoder));
            buf.clear();
        }


        return sb.toString();
    }

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            // Create chunk set
            chunk = new HdfsDataFileChunk(fs, fs.getFileStatus(path));


            // Read the chunks
            for(int offset = 0; offset < numBytes; offset += jumps) {
                buffer.clear();
                assertEquals(chunk.read(buffer, offset), jumps);
                assertEquals(0, ByteUtils.compare(buffer.array(), ByteUtils.copy(randomBytes,
                                                                                 offset,
                                                                                 offset + jumps)));
            }

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            while ((bytesRead = in.read(buffer)) != -1) {
                if (bytesRead < size) {
                    byteBuffer.limit(bytesRead);
                }
                out.write(byteBuffer);
                byteBuffer.clear();
            }
        } finally {
            IOHelper.close(in, target.getName(), LOG);
            IOHelper.close(out, target.getName(), LOG, endpoint.isForceWrites());
        }

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    } catch(IllegalArgumentException iae) {
      // EXPECTED
    }


    // make a corrupted header
    inBuf.clear();
    inBuf.put((byte) 32);
    inBuf.put((byte) 0);
    inBuf.flip();
    in = InStream.create("test2", inBuf, codec, 300);
    try {

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                } catch (IOException ex) {
                    break;
                }


                try {
                    data.clear();
                    request.read(data);
                } catch (Throwable ex) {}
            }


            try {

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            while (read > 0) {
                read -= outChannel.write(buffer);
            }


            buffer.clear();
        }
    }


    private static boolean isLegalURIQueryChar(char c) {
        // http://java.sun.com/j2se/1.5.0/docs/api/java/net/URI.html

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                        // append characters literally
                    } finally {
                        if (bytes.position() > 0) {
                            bytes.flip();
                            buffer.append(Charsets.UTF_8.decode(bytes).toString());
                            bytes.clear();
                        }
                    }
                }
                buffer.append(url.charAt(i++));
            }

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    double finished = System.currentTimeMillis();
    
    logger.info("done in " + (finished-started)/1000 + " seconds");
    
    for (ByteBuffer buf : test.values()) {
      buf.clear();
    }
  }


  private void pumpTheHeap(int ops, byte[] payload) {

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    double finished = System.currentTimeMillis();
    
    logger.info("done in " + (finished-started)/1000 + " seconds");
    
    for (ByteBuffer buf : test.values()) {
      buf.clear();
    }
  }


  @BenchmarkOptions(benchmarkRounds = 5, warmupRounds = 0)
  @Test

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    double finished = System.currentTimeMillis();
    
    logger.info("done in " + (finished-started)/1000 + " seconds");
    
    for (ByteBuffer buf : test.values()) {
      buf.clear();
    }
  }
  
}

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