Examples with ValueAdoptedException org.corfudb.runtime.exceptions.ValueAdoptedException used on opensource projects

Example 1 with ValueAdoptedException

use of org.corfudb.runtime.exceptions.ValueAdoptedException in project CorfuDB by CorfuDB.

the class LogUnitClientTest method valueCanBeAdopted.

@Test
public void valueCanBeAdopted() throws ExecutionException, InterruptedException {
    byte[] testString = "hello world".getBytes();
    client.write(0, Collections.<UUID>emptySet(), new IMetadata.DataRank(1), testString, Collections.emptyMap()).get();
    LogData r = client.read(0).get().getReadSet().get(0L);
    assertThat(r.getType()).isEqualTo(DataType.DATA);
    assertThat(r.getPayload(new CorfuRuntime())).isEqualTo(testString);
    try {
        ILogData data = createEmptyData(0, DataType.RANK_ONLY, new IMetadata.DataRank(2)).getSerialized();
        client.write(data).get();
        fail();
    } catch (Exception e) {
        // expected
        assertEquals(ValueAdoptedException.class, e.getCause().getClass());
        ValueAdoptedException ex = (ValueAdoptedException) e.getCause();
        ReadResponse read = ex.getReadResponse();
        LogData log = read.getReadSet().get(0l);
        assertThat(log.getType()).isEqualTo(DataType.DATA);
        assertThat(log.getPayload(new CorfuRuntime())).isEqualTo(testString);
        ;
    }
    r = client.read(0).get().getReadSet().get(0L);
    assertThat(r.getType()).isEqualTo(DataType.DATA);
    assertThat(r.getPayload(new CorfuRuntime())).isEqualTo(testString);
}

Example 2 with ValueAdoptedException

use of org.corfudb.runtime.exceptions.ValueAdoptedException in project CorfuDB by CorfuDB.

the class StreamLogWithRankedAddressSpaceTest method testProposalWithHigherRankAgainstData.

@Test
public void testProposalWithHigherRankAgainstData() {
    StreamLogFiles log = new StreamLogFiles(getContext(), false);
    long address = 0;
    writeToLog(log, address, DataType.DATA, "v-1", 1);
    LogData value1 = log.read(address);
    assertTrue(new String(value1.getData()).contains("v-1"));
    try {
        writeToLog(log, address, DataType.RANK_ONLY, "v-2", 2);
        fail();
    } catch (ValueAdoptedException e) {
        LogData logData = e.getReadResponse().getReadSet().get(0l);
        assertTrue(new String(logData.getData()).contains("v-1"));
    }
    LogData value2 = log.read(address);
    assertTrue(new String(value2.getData()).contains("v-1"));
    log.close();
}

Example 3 with ValueAdoptedException

use of org.corfudb.runtime.exceptions.ValueAdoptedException in project CorfuDB by CorfuDB.

the class QuorumReplicationProtocol method getAdoptedValueWithHighestRankIfPresent.

private ReadResponse getAdoptedValueWithHighestRankIfPresent(Long position, Set<Throwable> throwables) {
    ReadResponse result = null;
    IMetadata.DataRank maxRank = null;
    for (Throwable t : throwables) {
        if (t instanceof ValueAdoptedException) {
            ValueAdoptedException ve = (ValueAdoptedException) t;
            ReadResponse r = ve.getReadResponse();
            LogData ld = r.getReadSet().get(position);
            if (maxRank == null || maxRank.compareTo(ld.getRank()) < 0) {
                maxRank = ld.getRank();
                result = r;
            }
        }
    }
    return result;
}

Example 4 with ValueAdoptedException

use of org.corfudb.runtime.exceptions.ValueAdoptedException in project CorfuDB by CorfuDB.

the class StreamLogWithRankedAddressSpace method assertAppendPermittedUnsafe.

/**
     * Check whether the data can be appended to a given log address.
     * Note that it is not permitted multiple threads to access the same log address
     * concurrently through this method, this method does not lock or synchronize.
     * This method needs
     * @param address
     * @param newEntry
     * @throws DataOutrankedException if the log entry cannot be assigned to this log address as there is a data with higher rank
     * @throws ValueAdoptedException if the new message is a proposal during the two phase recovery write and there is an existing
     * data at this log address already.
     * @throw OverwriteException if the new data is with rank 0 (not from recovery write). This can happen only if there is a bug in the client implementation.
     */
default default void assertAppendPermittedUnsafe(long address, LogData newEntry) throws DataOutrankedException, ValueAdoptedException {
    LogData oldEntry = read(address);
    if (oldEntry.getType() == DataType.EMPTY) {
        return;
    }
    if (newEntry.getRank().getRank() == 0) {
        // data consistency in danger
        throw new OverwriteException();
    }
    int compare = newEntry.getRank().compareTo(oldEntry.getRank());
    if (compare < 0) {
        throw new DataOutrankedException();
    }
    if (compare > 0) {
        if (newEntry.getType() == DataType.RANK_ONLY && oldEntry.getType() != DataType.RANK_ONLY) {
            // the new data is a proposal, the other data is not, so the old value should be adopted
            ReadResponse resp = new ReadResponse();
            resp.put(address, oldEntry);
            throw new ValueAdoptedException(resp);
        } else {
            return;
        }
    }
}