Package com.orientechnologies.common.util

Examples of com.orientechnologies.common.util.MersenneTwisterFast.nextBytes()

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    for (OClusterPosition clusterPosition : positionRecordMap.keySet()) {
      if (mersenneTwisterFast.nextBoolean()) {
        int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + 1;
        byte[] record = new byte[recordSize];
        mersenneTwisterFast.nextBytes(record);

        paginatedCluster.updateRecord(clusterPosition, record, newRecordVersion, (byte) 3);

        positionRecordMap.put(clusterPosition, record);
        updatedPositions.add(clusterPosition);
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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + 1;
      byte[] record = new byte[recordSize];
      mersenneTwisterFast.nextBytes(record);

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(record, recordVersion, (byte) 2);
      positionRecordMap.put(physicalPosition.clusterPosition, record);
    }

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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + 1;
      byte[] record = new byte[recordSize];
      mersenneTwisterFast.nextBytes(record);

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(record, recordVersion, (byte) 2);
      positionRecordMap.put(physicalPosition.clusterPosition, record);
    }

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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + 1;
      byte[] record = new byte[recordSize];
      mersenneTwisterFast.nextBytes(record);
      recordVersion.increment();

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(record, recordVersion, (byte) i);
      positions.add(physicalPosition);
    }
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      recordVersion.increment();
      recordVersion.increment();

      final byte[] bigChunk = new byte[OClusterPage.MAX_ENTRY_SIZE / 2];
      final MersenneTwisterFast mersenneTwisterFast = new MersenneTwisterFast();
      mersenneTwisterFast.nextBytes(bigChunk);

      int position = localPage.appendRecord(recordVersion, bigChunk, false);
      Assert.assertEquals(position, 0);
      Assert.assertEquals(localPage.getRecordVersion(0), recordVersion);
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  }

  public void testAddOneBigRecord() throws IOException {
    byte[] bigRecord = new byte[2 * 65536 + 100];
    MersenneTwisterFast mersenneTwisterFast = new MersenneTwisterFast();
    mersenneTwisterFast.nextBytes(bigRecord);

    ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
    recordVersion.increment();
    recordVersion.increment();

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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(OClusterPage.MAX_RECORD_SIZE - 1) + 1;
      byte[] smallRecord = new byte[recordSize];
      mersenneTwisterFast.nextBytes(smallRecord);

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(smallRecord, recordVersion, (byte) 2);

      positionRecordMap.put(physicalPosition.clusterPosition, smallRecord);
    }
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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + OClusterPage.MAX_RECORD_SIZE + 1;
      byte[] bigRecord = new byte[recordSize];
      mersenneTwisterFast.nextBytes(bigRecord);

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(bigRecord, recordVersion, (byte) 2);

      positionRecordMap.put(physicalPosition.clusterPosition, bigRecord);
    }
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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + 1;
      byte[] smallRecord = new byte[recordSize];
      mersenneTwisterFast.nextBytes(smallRecord);

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(smallRecord, recordVersion, (byte) 2);

      positionRecordMap.put(physicalPosition.clusterPosition, smallRecord);
    }
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    recordVersion.increment();

    for (int i = 0; i < records; i++) {
      int recordSize = mersenneTwisterFast.nextInt(OClusterPage.MAX_RECORD_SIZE - 1) + 1;
      byte[] smallRecord = new byte[recordSize];
      mersenneTwisterFast.nextBytes(smallRecord);

      final OPhysicalPosition physicalPosition = paginatedCluster.createRecord(smallRecord, recordVersion, (byte) 2);

      positionRecordMap.put(physicalPosition.clusterPosition, smallRecord);
    }
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