Package com.hp.hpl.jena.tdb

Examples of com.hp.hpl.jena.tdb.StoreConnection

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        }
   
        @Override
        public Object call()
        {
          StoreConnection sConn = tts.getStoreConnection() ;
            DatasetGraphTxn dsg = null ;
            try
            {
                int id = gen.incrementAndGet() ;
                for (int i = 0; i < repeats; i++)
                {
                    dsg = sConn.begin(ReadWrite.READ) ;
                    log.debug("reader start " + id + "/" + i) ;

                    int x1 = count("SELECT * { ?s ?p ?o }", dsg) ;
                    pause(maxpause) ;
                    int x2 = count("SELECT * { ?s ?p ?o }", dsg) ;
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        }
       
        @Override
        public Object call()
        {
          StoreConnection sConn = tts.getStoreConnection() ;
            DatasetGraphTxn dsg = null ;
            try {
                int id = gen.incrementAndGet() ;
                for ( int i = 0 ; i < repeats ; i++ )
                {
                    log.debug("writer start "+id+"/"+i) ;               
                    dsg = sConn.begin(ReadWrite.WRITE) ;

                    int x1 = count("SELECT * { ?s ?p ?o }", dsg) ;
                    int z = change(dsg, id, i) ;
                    pause(maxpause) ;
                    int x2 = count("SELECT * { ?s ?p ?o }", dsg) ;
                    if ( x1+z != x2 )
                    {
                        TransactionManager txnMgr = dsg.getTransaction().getTxnMgr() ;
                        SysTxnState state = txnMgr.state() ;
                        String label = dsg.getTransaction().getLabel() ;
                        log.warn(format("WRITER: %s Change seen: %d + %d != %d : id=%d: i=%d", label, x1, z, x2, id, i)) ;
                        log.warn(state.toString()) ;
                        dsg.abort() ;
                        dsg.end() ;
                        dsg = null ;
                        return null ;
                    }
                    if (commit)
                        dsg.commit() ;
                    else
                        dsg.abort() ;
                    SysTxnState state = sConn.getTransMgrState() ;
                    log.debug(state.toString()) ;
                    log.debug("writer finish "+id+"/"+i) ;               
                    dsg.end() ;
                    dsg = null ;
                }
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    }
   
    @Test public void trans_05()
    {
        // WRITE(commit)-WRITE(commit)-READ-check
        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgW1 = sConn.begin(ReadWrite.WRITE) ;
        dsgW1.add(q1) ;
        dsgW1.commit() ;
        dsgW1.end() ;

        DatasetGraphTxn dsgW2 = sConn.begin(ReadWrite.WRITE) ;
        dsgW2.add(q2) ;
        dsgW2.commit() ;
        dsgW2.end() ;

        DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ) ;
        assertTrue(dsgR2.contains(q1)) ;
        assertTrue(dsgR2.contains(q2)) ;
        dsgR2.end() ;
       
        sConn.flush() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertTrue(dsg.contains(q1)) ;
        assertTrue(dsg.contains(q2)) ;
    }
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    }
   
    @Test public void trans_06()
    {
        // READ(start)-READ(finish)-WRITE(start)-WRITE(commit)-check
        StoreConnection sConn = getStoreConnection() ;
       
        DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ) ;
        assertFalse(dsgR2.contains(q1)) ;
        assertFalse(dsgR2.contains(q2)) ;
        dsgR2.end() ;
       
        DatasetGraphTxn dsgW1 = sConn.begin(ReadWrite.WRITE) ;
        dsgW1.add(q1) ;
        dsgW1.add(q2) ;
        dsgW1.commit() ;
        dsgW1.end() ;

        sConn.forceRecoverFromJournal() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertTrue(dsg.contains(q1)) ;
        assertTrue(dsg.contains(q2)) ;
    }
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    @Test public void trans_readBlock_01()
    {
        // READ(start)-WRITE(commit)-READ(finish)-check
        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgR1 = sConn.begin(ReadWrite.READ) ;
       
        DatasetGraphTxn dsgW = sConn.begin(ReadWrite.WRITE) ;
       
        dsgW.add(q) ;
        dsgW.commit() ;
        dsgW.end() ;
       
        assertFalse(dsgR1.contains(q)) ;
        dsgR1.end() ;

        //**** Not hitting the queue ****
        // Order of tweaking counters?
        // also writer and counters?
       
        DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ) ;
        assertTrue(dsgR2.contains(q)) ;
        dsgR2.end() ;
       
        sConn.flush() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertTrue(dsg.contains(q)) ;
    }
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    @Test public void trans_readBlock_02()
    {
        // READ(start)-WRITE(abort)-READ(finish)-check
        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgR1 = sConn.begin(ReadWrite.READ) ;
       
        DatasetGraphTxn dsgW = sConn.begin(ReadWrite.WRITE) ;
       
        dsgW.add(q) ;
        dsgW.abort() ;
        dsgW.end() ;
       
        assertFalse(dsgR1.contains(q)) ;
        dsgR1.end() ;

        DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ) ;
        assertFalse(dsgR2.contains(q)) ;
        dsgR2.end() ;
       
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertFalse(dsg.contains(q)) ;
    }
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    }
   
    @Test public void trans_readBlock_03()
    {
        // READ(start)-WRITE(commit)-WRITE(commit)-READ(finish)-check
        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgR1 = sConn.begin(ReadWrite.READ) ;
       
        DatasetGraphTxn dsgW1 = sConn.begin(ReadWrite.WRITE) ;
        dsgW1.add(q1) ;
        dsgW1.commit() ;
        dsgW1.end() ;

        assertFalse(dsgR1.contains(q1)) ;
       
        DatasetGraphTxn dsgW2 = sConn.begin(ReadWrite.WRITE) ;
        dsgW2.add(q2) ;
        dsgW2.commit() ;
        dsgW2.end() ;

        assertFalse(dsgR1.contains(q1)) ;
        assertFalse(dsgR1.contains(q2)) ;

        dsgR1.end() ;

        DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ) ;
        assertTrue(dsgR2.contains(q1)) ;
        assertTrue(dsgR2.contains(q2)) ;
        dsgR2.end() ;
       
        sConn.flush() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertTrue(dsg.contains(q1)) ;
        assertTrue(dsg.contains(q2)) ;
    }
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    @Test
    public void trans_readBlock_04()
    {
        // READ(block)-WRITE(abort)-WRITE(commit)-READ(close)-check
        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgR1 = sConn.begin(ReadWrite.READ) ;
       
        DatasetGraphTxn dsgW2 = sConn.begin(ReadWrite.WRITE) ;
        dsgW2.add(q2) ;
        dsgW2.abort() ; // ABORT
        dsgW2.end() ;
        assertFalse(dsgR1.contains(q2)) ;

        DatasetGraphTxn dsgW3 = sConn.begin(ReadWrite.WRITE) ;
        dsgW3.add(q3) ;
        // Can see W1
        assertFalse(dsgW3.contains(q2)) ;
        dsgW3.commit() ;
        dsgW3.end() ;
        assertFalse(dsgR1.contains(q3)) ;
       
        dsgR1.end() ;
       
        sConn.flush() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertFalse(dsg.contains(q2)) ;
        assertTrue(dsg.contains(q3)) ;
    }
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    @Test
    public void trans_readBlock_05()
    {
        // READ(block)-WRITE(commit)-WRITE(abort)-WRITE(commit)-READ(close)-check
        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgR1 = sConn.begin(ReadWrite.READ) ;
       
        DatasetGraphTxn dsgW1 = sConn.begin(ReadWrite.WRITE) ;
        dsgW1.add(q1) ;
        dsgW1.commit() ;
        dsgW1.end() ;
        assertFalse(dsgR1.contains(q1)) ;
       
        DatasetGraphTxn dsgW2 = sConn.begin(ReadWrite.WRITE) ;
        dsgW2.add(q2) ;
        dsgW2.abort() ; // ABORT
        dsgW2.end() ;
        assertFalse(dsgR1.contains(q2)) ;

        DatasetGraphTxn dsgW3 = sConn.begin(ReadWrite.WRITE) ;
        dsgW3.add(q3) ;
        // Can see W1
        assertTrue(dsgW3.contains(q1)) ;
        assertFalse(dsgW3.contains(q2)) ;
        dsgW3.commit() ;
        dsgW3.end() ;
        assertFalse(dsgR1.contains(q3)) ;
       
        dsgR1.end() ;
       
        sConn.flush() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertTrue(dsg.contains(q1)) ;
        assertFalse(dsg.contains(q2)) ;
        assertTrue(dsg.contains(q3)) ;
    }
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    @Test public void trans_readBlock_06()
    {
        // WRITE(start)-READ(start)-WRITE(commit)-READ sees old DSG.
        // READ before WRITE remains seeing old view - READ after WRITE starts

        StoreConnection sConn = getStoreConnection() ;
        DatasetGraphTxn dsgW = sConn.begin(ReadWrite.WRITE) ;
        DatasetGraphTxn dsgR = sConn.begin(ReadWrite.READ) ;
       
        dsgW.add(q) ;
        dsgW.commit() ;
        dsgW.end() ;
       
        assertFalse(dsgR.contains(q)) ;
        dsgR.end() ;

        DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ) ;
        assertTrue(dsgR2.contains(q)) ;
        dsgR2.end() ;
       
        sConn.flush() ;
        DatasetGraph dsg = sConn.getBaseDataset() ;
        assertTrue(dsg.contains(q)) ;
    }
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  • com.hp.hpl.jena.tdb.store.DatasetGraphTDB
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