Examples with ThreadAction org.apache.jena.system.ThreadAction used on opensource projects

Example 1 with ThreadAction

use of org.apache.jena.system.ThreadAction in project jena by apache.

the class AbstractTestTransPromote method run_07.

// Async writer after promotion.
private void run_07(boolean readCommitted) {
    Assume.assumeTrue(!readCommitted || supportsReadCommitted());
    setReadCommitted(readCommitted);
    DatasetGraph dsg = create();
    // Start long running reader.
    ThreadAction tt = ThreadTxn.threadTxnRead(dsg, () -> {
        long x = Iter.count(dsg.find());
        if (x != 0)
            throw new RuntimeException();
    });
    // Start R->W here
    dsg.begin(ReadWrite.READ);
    dsg.add(q1);
    dsg.add(q2);
    dsg.commit();
    dsg.end();
    tt.run();
}

Example 2 with ThreadAction

use of org.apache.jena.system.ThreadAction in project jena by apache.

the class AbstractTestTransPromote method promote_readCommit_txnCommit.

private void promote_readCommit_txnCommit(boolean readCommitted, boolean asyncCommit) {
    Assume.assumeTrue(!readCommitted || supportsReadCommitted());
    setReadCommitted(readCommitted);
    DatasetGraph dsg = create();
    ThreadAction tt = asyncCommit ? ThreadTxn.threadTxnWrite(dsg, () -> dsg.add(q3)) : ThreadTxn.threadTxnWriteAbort(dsg, () -> dsg.add(q3));
    dsg.begin(ReadWrite.READ);
    // Other runs
    tt.run();
    // Can promote if readCommited
    // Can't promote if not readCommited
    dsg.add(q1);
    if (!readCommitted && asyncCommit)
        fail("Should not be here");
    // read commited - we should see the ThreadAction change.
    assertEquals(asyncCommit, dsg.contains(q3));
    dsg.commit();
    dsg.end();
//logger2.setLevel(level2);
}

Example 3 with ThreadAction

use of org.apache.jena.system.ThreadAction in project jena by apache.

the class AbstractTestTransactionIsolation method isolation_01.

@Test
public void isolation_01() {
    // Start a read transaction on another thread.
    // The transaction has begin() by the time threadTxnRead
    // returns but the action of the ThreadTxn is not triggered
    // until other.run() is called.
    DatasetGraph dsg = create();
    ThreadAction other = ThreadTxn.threadTxnRead(dsg, () -> Assert.assertTrue(dsg.isEmpty()));
    dsg.begin(WRITE);
    dsg.add(q1);
    dsg.commit();
    dsg.end();
    other.run();
}