Example usage for java.util.concurrent ExecutionException getCause

Introduction

In this page you can find the example usage for java.util.concurrent ExecutionException getCause.

Prototype

public synchronized Throwable getCause()

Source Link

Document

Returns the cause of this throwable or null if the cause is nonexistent or unknown.

Usage

From source file:co.cask.cdap.client.rest.RestStreamWriterTest.java

@Test
public void testNotAuthorizedEmptyTokenStringWrite() throws IOException, InterruptedException {
    AuthenticationClient authClient = Mockito.mock(AuthenticationClient.class);
    AccessToken accessToken = Mockito.mock(AccessToken.class);
    Mockito.when(authClient.getAccessToken()).thenReturn(accessToken);
    Mockito.when(accessToken.getValue()).thenReturn(StringUtils.EMPTY);
    Mockito.when(accessToken.getTokenType()).thenReturn("Bearer");
    streamClient = RestStreamClient.builder(testServerHost, testServerPort).authClient(authClient).build();
    streamWriter = streamClient/*from  w w  w .  j  a v a 2s .  c  om*/
            .createWriter(TestUtils.AUTH_STREAM_NAME + TestUtils.WRITER_TEST_STREAM_NAME_POSTFIX);
    try {
        streamWriter.write(RestTest.EXPECTED_WRITER_CONTENT, Charsets.UTF_8).get();
    } catch (ExecutionException e) {
        assertEquals(HttpFailureException.class, e.getCause().getClass());
    }
}

From source file:co.cask.cdap.client.rest.RestStreamWriterTest.java

@Test
public void testNotAuthorizedUnknownTokenStringWrite() throws IOException, InterruptedException {
    AuthenticationClient authClient = Mockito.mock(AuthenticationClient.class);
    AccessToken accessToken = Mockito.mock(AccessToken.class);
    Mockito.when(authClient.getAccessToken()).thenReturn(accessToken);
    Mockito.when(accessToken.getValue()).thenReturn("test");
    Mockito.when(accessToken.getTokenType()).thenReturn("Bearer");
    streamClient = RestStreamClient.builder(testServerHost, testServerPort).authClient(authClient).build();
    streamWriter = streamClient//  w w w .j  ava2 s .  c  o  m
            .createWriter(TestUtils.AUTH_STREAM_NAME + TestUtils.WRITER_TEST_STREAM_NAME_POSTFIX);
    try {
        streamWriter.write(RestTest.EXPECTED_WRITER_CONTENT, Charsets.UTF_8).get();
    } catch (ExecutionException e) {
        assertEquals(HttpFailureException.class, e.getCause().getClass());
    }
}

From source file:org.apache.commons.rng.examples.stress.RandomStressTester.java

/**
 * Creates the tasks and starts the processes.
 *
 * @param generators List of generators to be analyzed.
 * @param numConcurrentTasks Number of concurrent tasks.
 * Twice as many threads will be started: one thread for the RNG and one
 * for the analyzer.//  w  w  w .  j av  a2  s. c om
 * @throws IOException if an error occurs when writing to the disk.
 */
private void run(Iterable<UniformRandomProvider> generators, int numConcurrentTasks) throws IOException {
    // Parallel execution.
    final ExecutorService service = Executors.newFixedThreadPool(numConcurrentTasks);

    // Placeholder (output will be "null").
    final List<Future<?>> execOutput = new ArrayList<Future<?>>();

    // Run tasks.
    int count = 0;
    for (UniformRandomProvider rng : generators) {
        final File output = new File(fileOutputPrefix + (++count));
        final Runnable r = new Task(rng, output);
        execOutput.add(service.submit(r));
    }

    // Wait for completion (ignoring return value).
    try {
        for (Future<?> f : execOutput) {
            try {
                f.get();
            } catch (ExecutionException e) {
                System.err.println(e.getCause().getMessage());
            }
        }
    } catch (InterruptedException ignored) {
    }

    // Terminate all threads.
    service.shutdown();
}

From source file:org.sonar.batch.scan.filesystem.FileIndexer.java

private void waitForTasksToComplete() {
    executorService.shutdown();/*from   www . ja va 2  s .c o  m*/
    for (Future<Void> task : tasks) {
        try {
            task.get();
        } catch (ExecutionException e) {
            // Unwrap ExecutionException
            throw e.getCause() instanceof RuntimeException ? (RuntimeException) e.getCause()
                    : new IllegalStateException(e.getCause());
        } catch (InterruptedException e) {
            throw new IllegalStateException(e);
        }
    }
}

From source file:com.asakusafw.runtime.stage.temporary.TemporaryFileInputHelper.java

public synchronized Result getNextPage() throws IOException, InterruptedException {
    if (sawEof) {
        return new Result(null, positionInBlock, currentBlock, blockRest, null, true);
    }//www.j  a v  a 2  s.  c om
    // if no any tasks were running, first we submit a new task for reading the next contents
    submitIfAvailable();
    if (running == null) {
        throw new IllegalStateException();
    }
    assert running != null;
    Result result;
    try {
        result = running.get();
    } catch (ExecutionException e) {
        Throwable cause = e.getCause();
        if (cause instanceof IOException) {
            throw new IOException("Exception occurred while reading contents", cause);
        } else if (cause instanceof InterruptedException) {
            throw (InterruptedException) cause;
        } else if (cause instanceof RuntimeException) {
            throw (RuntimeException) cause;
        } else if (cause instanceof Error) {
            throw (Error) cause;
        }
        throw new IllegalStateException(cause);
    } finally {
        running = null;
    }
    this.sawEof = result.sawEof;
    this.positionInBlock = result.positionInBlock;
    this.currentBlock = result.currentBlock;
    this.blockRest = result.blockRest;

    // submit a task for reading the successive page (only if available)
    submitIfAvailable();
    return result;
}

From source file:com.addthis.hydra.data.util.JSONFetcher.java

private byte[] retrieveBytes(String url) throws IOException {
    MutableInt retry = new MutableInt(0);
    try {//w w  w  .j a v a 2s . com
        return retryer.call(() -> request(url, retry));
    } catch (ExecutionException e) {
        throw Throwables.propagate(e.getCause());
    } catch (RetryException e) {
        throw new IOException("Max retries exceeded");
    }
}

From source file:org.apache.pulsar.client.impl.ProducerBuilderImpl.java

@Override
public Producer<T> create() throws PulsarClientException {
    try {/*  w ww .  ja  v a2s. c om*/
        return createAsync().get();
    } catch (ExecutionException e) {
        Throwable t = e.getCause();
        if (t instanceof PulsarClientException) {
            throw (PulsarClientException) t;
        } else {
            throw new PulsarClientException(t);
        }
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new PulsarClientException(e);
    }
}

From source file:org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.java

@Test
public void testNoTable() throws InterruptedException {
    for (RegionLocateType locateType : RegionLocateType.values()) {
        try {//from ww w.  j  av  a  2 s.co  m
            LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, locateType).get();
        } catch (ExecutionException e) {
            assertThat(e.getCause(), instanceOf(TableNotFoundException.class));
        }
    }
}

From source file:org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.java

@Test
public void testDisableTable() throws IOException, InterruptedException {
    createSingleRegionTable();/*from   w  w  w  .  j  a  v  a2s  .  c  om*/
    TEST_UTIL.getAdmin().disableTable(TABLE_NAME);
    for (RegionLocateType locateType : RegionLocateType.values()) {
        try {
            LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, locateType).get();
        } catch (ExecutionException e) {
            assertThat(e.getCause(), instanceOf(TableNotFoundException.class));
        }
    }
}

From source file:org.springframework.batch.support.transaction.ConcurrentTransactionAwareProxyTests.java

@Ignore("This fails too often and is a false negative")
@Test/*from   w w  w.ja  v a 2  s  .c o m*/
public void testConcurrentTransactionalList() throws Exception {
    List<String> list = TransactionAwareProxyFactory.createTransactionalList();
    try {
        testList(list, true);
        fail("Expected ExecutionException or AssertionError (but don't panic if it didn't happen: it probably just means we got lucky for a change)");
    } catch (ExecutionException e) {
        String message = e.getCause().getMessage();
        assertTrue("Wrong message: " + message, message.startsWith("Lost update"));
    } catch (AssertionError e) {
        String message = e.getMessage();
        assertTrue("Wrong message: " + message, message.startsWith("Wrong number of results"));
    }
}