Package org.entityfs

Examples of org.entityfs.ReadWritableFile

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  public void testStealThreeLeafRecordsFromNodeToTheLeftWithTooBigNodeSize()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      // 12 records per node + 4 extra bytes
      int nodeSize = new NumberOfRecordsNodeSizeStrategy(12).getNodeSize(9, 2 * LongSerializer.DATA_SIZE, 0) + 4;
      NodeRepository<Long> nr = new FileBackedNodeRepository<Long, Long>(f, false, f.getSize(), new FixedSizeNodeSizeStrategy(nodeSize), false, LongNullSerializer.INSTANCE, LongSerializer.INSTANCE, 8, 8192, null, new LogAdapterHolder(new StdOutLogAdapter()));
      testStealThreeLeafRecordsFromNodeToTheLeftInternal(nr, new NodePositions(nodeSize, nodeSize, nr.getPositionOfRootNode()), LONG_CONVERTER, LONG_CONVERTER);
      assertJunkUntouched(f, barr);
    }
    finally
    {
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  private <K extends Comparable<K>, V> void testStealTwoNonLeafRecordsFromNodeToTheRightInternal(Serializer<K> keySerializer, ValueConverter<K> kconv, Serializer<V> valueSerializer, ValueConverter<V> vconv, int cacheSize, int pointerSize, boolean leafNodePointers)
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      NodeRepository<K> nr = new FileBackedNodeRepository<K, V>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(8), leafNodePointers, keySerializer, valueSerializer, pointerSize, 8192, null, new LogAdapterHolder(new StdOutLogAdapter()));
      if (cacheSize > 0)
      {
        nr = new LruCacheNodeRepository<K, V>(nr, cacheSize);
      }
      testStealTwoNonLeafRecordsFromNodeToTheRightInternal(nr, new NodePositions(getNonLeafNodeSize(keySerializer.getSerializedSize(), pointerSize, 8), getLeafNodeSize(keySerializer.getSerializedSize(), valueSerializer.getSerializedSize(), pointerSize, 8, leafNodePointers), nr.getPositionOfRootNode()), kconv, vconv);
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  public void testStealTwoNonLeafRecordsFromNodeToTheRightAndTooBigNodeSize()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      // 8 records per node + 5 extra bytes
      int nodeSize = new NumberOfRecordsNodeSizeStrategy(8).getNodeSize(9, 2 * LongSerializer.DATA_SIZE, 0) + 5;
      NodeRepository<Long> nr = new FileBackedNodeRepository<Long, Long>(f, false, f.getSize(), new FixedSizeNodeSizeStrategy(nodeSize), false, LongNullSerializer.INSTANCE, LongSerializer.INSTANCE, 8, 8192, null, new LogAdapterHolder(new StdOutLogAdapter()));
      testStealTwoNonLeafRecordsFromNodeToTheRightInternal(nr, new NodePositions(nodeSize, nodeSize, nr.getPositionOfRootNode()), LONG_CONVERTER, LONG_CONVERTER);
      assertJunkUntouched(f, barr);
    }
    finally
    {
View Full Code Here
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  private <K extends Comparable<K>, V> void testStealTwoNonLeafRecordsFromNodeToTheLeftInternal(Serializer<K> keySerializer, ValueConverter<K> kconv, Serializer<V> valueSerializer, ValueConverter<V> vconv, int cacheSize, int pointerSize, boolean leafNodePointers)
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      NodeRepository<K> nr = new FileBackedNodeRepository<K, V>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(8), leafNodePointers, keySerializer, valueSerializer, pointerSize, 8192, null, new LogAdapterHolder(new StdOutLogAdapter()));
      if (cacheSize > 0)
      {
        nr = new LruCacheNodeRepository<K, V>(nr, cacheSize);
      }
      testStealTwoNonLeafRecordsFromNodeToTheLeftInternal(nr, new NodePositions(getNonLeafNodeSize(keySerializer.getSerializedSize(), pointerSize, 8), getLeafNodeSize(keySerializer.getSerializedSize(), valueSerializer.getSerializedSize(), pointerSize, 8, leafNodePointers), nr.getPositionOfRootNode()), kconv, vconv);
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  public void testStealTwoNonLeafRecordsFromNodeToTheLeftWithTooBigNodeSize()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      // 8 records per node + 5 extra bytes
      int nodeSize = new NumberOfRecordsNodeSizeStrategy(8).getNodeSize(9, 16, 0) + 5;
      NodeRepository<Long> nr = new FileBackedNodeRepository<Long, Long>(f, false, f.getSize(), new FixedSizeNodeSizeStrategy(nodeSize), false, LongNullSerializer.INSTANCE, LongSerializer.INSTANCE, 8, 8192, null, new LogAdapterHolder(new StdOutLogAdapter()));
      testStealTwoNonLeafRecordsFromNodeToTheLeftInternal(nr, new NodePositions(nodeSize, nodeSize, nr.getPositionOfRootNode()), LONG_CONVERTER, LONG_CONVERTER);
      assertJunkUntouched(f, barr);
    }
    finally
    {
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  public void testIteratorsWhenNotSupported()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      NodeRepository<Long> nr = new FileBackedNodeRepository<Long, Long>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(2), false, LongNullSerializer.INSTANCE, LongSerializer.INSTANCE, 8, 8192, null, new LogAdapterHolder(new StdOutLogAdapter()));
      BPlusTree<Long, Long> btr = new BPlusTree<Long, Long>(nr, new LogAdapterHolder(new StdOutLogAdapter()));
      try
      {
        assertFalse(btr.isIteratorSupported());
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  public void testKeyIterator()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      Iterator<Long> itr = null;
      BPlusTree<Long, Integer> btr = new BPlusTree<Long, Integer>(new FileBackedNodeRepository<Long, Integer>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(2), true, LongNullSerializer.INSTANCE, IntegerSerializer.INSTANCE, 3, 8192, null, new LogAdapterHolder(new StdOutLogAdapter())), new LogAdapterHolder(new StdOutLogAdapter()));
      try
      {
        itr = btr.keyIterator();
        assertFalse(itr.hasNext());
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  public void testKeyIteratorForEmptyTree()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      Iterator<Long> itr = null;
      BPlusTree<Long, Integer> btr = new BPlusTree<Long, Integer>(new LruCacheNodeRepository<Long, Integer>(new FileBackedNodeRepository<Long, Integer>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(2), true, LongNullSerializer.INSTANCE, IntegerSerializer.INSTANCE, 3, 8192, null, new LogAdapterHolder(new StdOutLogAdapter())), 10), new LogAdapterHolder(new StdOutLogAdapter()));
      try
      {
        itr = btr.keyIterator();
        assertFalse(itr.hasNext());
        try
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  public void testValueIterator()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      Iterator<Integer> itr = null;
      BPlusTree<Long, Integer> btr = new BPlusTree<Long, Integer>(new FileBackedNodeRepository<Long, Integer>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(2), true, LongNullSerializer.INSTANCE, IntegerSerializer.INSTANCE, 3, 8192, null, new LogAdapterHolder(new StdOutLogAdapter())), new LogAdapterHolder(new StdOutLogAdapter()));
      try
      {
        itr = btr.valueIterator();
        assertFalse(itr.hasNext());
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  public void testValueIteratorForEmptyTree()
  {
    File tmpFile = FileSupport.createTempFile();
    try
    {
      ReadWritableFile f = new ReadWritableFileAdapter(tmpFile);
      byte[] barr = writeJunk(f);
      Iterator<Integer> itr = null;
      BPlusTree<Long, Integer> btr = new BPlusTree<Long, Integer>(new FileBackedNodeRepository<Long, Integer>(f, false, f.getSize(), new NumberOfRecordsNodeSizeStrategy(2), true, LongNullSerializer.INSTANCE, IntegerSerializer.INSTANCE, 3, 8192, null, new LogAdapterHolder(new StdOutLogAdapter())), new LogAdapterHolder(new StdOutLogAdapter()));
      try
      {
        itr = btr.valueIterator();
        assertFalse(itr.hasNext());
        try
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