Package org.apache.directory.mavibot.btree

Examples of org.apache.directory.mavibot.btree.RecordManager

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            else
            {
                LOG.debug( "Using the custom configured cache size of {} for {} partition", cacheSize, id );
            }

            recordMan = new RecordManager( partitionDir.getPath() );

            // Initialize the indexes
            super.doInit();

            // First, check if the file storing the data exists
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        File tempFile = File.createTempFile( "mavibot", ".db" );
        String tempFileName = tempFile.getAbsolutePath();
        tempFile.deleteOnExit();

        // Create page size of 32 only
        RecordManager recordManager = new RecordManager( tempFileName, 32 );
        Method storeMethod = RecordManager.class.getDeclaredMethod( "store", long.class, int.class, PageIO[].class );
        Method readIntMethod = RecordManager.class.getDeclaredMethod( "readInt", PageIO[].class, long.class );
        storeMethod.setAccessible( true );
        readIntMethod.setAccessible( true );

        // Allocate some Pages
        PageIO[] pageIos = new PageIO[2];
        pageIos[0] = new PageIO();
        pageIos[0].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[1] = new PageIO();
        pageIos[1].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );

        // Set the int at the beginning
        storeMethod.invoke( recordManager, 0, 0x12345678, pageIos );

        // Read it back
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        File tempFile = File.createTempFile( "mavibot", ".db" );
        String tempFileName = tempFile.getAbsolutePath();
        tempFile.deleteOnExit();

        // Create page size of 32 only
        RecordManager recordManager = new RecordManager( tempFileName, 32 );
        Method storeMethod = RecordManager.class.getDeclaredMethod( "store", long.class, long.class, PageIO[].class );
        Method readLongMethod = RecordManager.class.getDeclaredMethod( "readLong", PageIO[].class, long.class );
        storeMethod.setAccessible( true );
        readLongMethod.setAccessible( true );

        // Allocate some Pages
        PageIO[] pageIos = new PageIO[2];
        pageIos[0] = new PageIO();
        pageIos[0].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[1] = new PageIO();
        pageIos[1].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );

        // Set the int at the beginning
        storeMethod.invoke( recordManager, 0, 0x0123456789ABCDEFL, pageIos );

        // Read it back
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        File tempFile = File.createTempFile( "mavibot", ".db" );
        String tempFileName = tempFile.getAbsolutePath();
        tempFile.deleteOnExit();

        // We use smaller pages
        RecordManager recordManager = new RecordManager( tempFileName, 32 );
        Method storeMethod = RecordManager.class.getDeclaredMethod( "store", long.class, byte[].class, PageIO[].class );
        Method readBytesMethod = RecordManager.class.getDeclaredMethod( "readBytes", PageIO[].class, long.class );
        storeMethod.setAccessible( true );
        readBytesMethod.setAccessible( true );

        // Allocate some Pages
        PageIO[] pageIos = new PageIO[4];
        pageIos[0] = new PageIO();
        pageIos[0].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[1] = new PageIO();
        pageIos[1].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[2] = new PageIO();
        pageIos[2].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[3] = new PageIO();
        pageIos[3].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );

        // We start with 4 bytes
        byte[] bytes = new byte[]
            { 0x01, 0x23, 0x45, 0x67 };
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            {
                recordManager1.close();
            }

            // Now, try to reload the file back
            recordManager1 = new RecordManager( dataDir.getAbsolutePath() );

            // load the last created btree
            if ( btree != null )
            {
                btree = recordManager1.getManagedTree( btree.getName() );
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    {
        File tempFile = File.createTempFile( "mavibot", ".db" );
        String tempFileName = tempFile.getAbsolutePath();
        tempFile.deleteOnExit();

        RecordManager recordManager = new RecordManager( tempFileName, 4 * 1024 );
        Method method = RecordManager.class.getDeclaredMethod( "store", long.class, int.class, PageIO[].class );
        method.setAccessible( true );

        // Allocate some Pages
        PageIO[] pageIos = new PageIO[2];
        pageIos[0] = new PageIO();
        pageIos[0].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[1] = new PageIO();
        pageIos[1].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );

        // Set the int at the beginning
        long position = ( Long ) method.invoke( recordManager, 0, 0x12345678, pageIos );

        assertEquals( 4, position );
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    {
        File tempFile = File.createTempFile( "mavibot", ".db" );
        String tempFileName = tempFile.getAbsolutePath();
        tempFile.deleteOnExit();

        RecordManager recordManager = new RecordManager( tempFileName, 4 * 1024 );
        Method method = RecordManager.class.getDeclaredMethod( "store", long.class, long.class, PageIO[].class );
        method.setAccessible( true );

        // Allocate some Pages
        PageIO[] pageIos = new PageIO[2];
        pageIos[0] = new PageIO();
        pageIos[0].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[1] = new PageIO();
        pageIos[1].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );

        // Set the long at the beginning
        long position = ( Long ) method.invoke( recordManager, 0, 0x0123456789ABCDEFL, pageIos );

        assertEquals( 8, position );
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        File tempFile = File.createTempFile( "mavibot", ".db" );
        String tempFileName = tempFile.getAbsolutePath();
        tempFile.deleteOnExit();

        // We use smaller pages
        RecordManager recordManager = new RecordManager( tempFileName, 32 );
        Method storeMethod = RecordManager.class.getDeclaredMethod( "store", long.class, byte[].class, PageIO[].class );
        storeMethod.setAccessible( true );

        // Allocate some Pages
        PageIO[] pageIos = new PageIO[4];
        pageIos[0] = new PageIO();
        pageIos[0].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[1] = new PageIO();
        pageIos[1].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[2] = new PageIO();
        pageIos[2].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );
        pageIos[3] = new PageIO();
        pageIos[3].setData( ByteBuffer.allocate( recordManager.getPageSize() ) );

        // We start with 4 bytes
        byte[] bytes = new byte[]
            { 0x01, 0x23, 0x45, 0x67 };
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    public void createRecordManager() throws Exception
    {
        dataDir = tempFolder.newFolder( UUID.randomUUID().toString() );
       
        // Now, try to reload the file back
        recordManager = new RecordManager( dataDir.getAbsolutePath(), 32 );

        // Create a new BTree
        btree = ( BTree<Long, String> ) recordManager.addBTree( "test", new LongSerializer(), new StringSerializer(), false );
    }
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            {
                recordManager.close();
            }

            // Now, try to reload the file back
            recordManager = new RecordManager( dataDir.getAbsolutePath() );

            // load the last created btree
            btree = recordManager.getManagedTree( "test" );
        }
        catch ( Exception e )
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Related Classes of org.apache.directory.mavibot.btree.RecordManager

  • org.apache.directory.mavibot.btree.PersistedBTreeBrowseTest
  • org.apache.directory.mavibot.btree.PersistedBTreeBuilderTest
  • org.apache.directory.mavibot.btree.PersistedReadTest
  • org.apache.directory.mavibot.btree.ReadTest
  • org.apache.directory.mavibot.btree.RecordManagerFreePageTest
  • org.apache.directory.mavibot.btree.RecordManagerPrivateMethodTest
  • org.apache.directory.mavibot.btree.RecordManagerTest
  • org.apache.directory.mavibot.btree.RecordManagerWithDuplicatesTest
  • org.apache.directory.mavibot.btree.serializer.LongArraySerializer
  • org.apache.directory.mavibot.btree.serializer.LongSerializer
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