Java Throwables.getRootCause方法代碼示例

import com.google.common.base.Throwables; //導入方法依賴的package包/類
@Override
protected int doHandle(final String body, final String pathInfo) throws ServletException {
	final Matcher matcher = SESSION_ID_PATTERN.matcher(pathInfo);
	String sessionId = null;
	if (matcher.find()) {
		sessionId = matcher.group();
	}

	if (sessionExists(sessionId)) {
		try {
			bus.post(createEvent(sessionId, body));
		} catch (final Exception e) {
			final Throwable rootCause = Throwables.getRootCause(e);
			if (rootCause instanceof ClientResourceException) {
				throw (ClientResourceException) rootCause;
			}
			LOGGER.error("Error while creating event for test session. [Session ID: " + sessionId + "]", e);
			throw new ServletException(e);
		}
		return SC_OK;
	}

	return SC_NOT_FOUND;

}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
@Override
protected int doHandle(final String body, final String pathInfo) throws ServletException {
	TestResourceParameters parameters = this.getParametersFromPathInfo(pathInfo);

	if (null != parameters && sessionExists(parameters.sessionId)) {
		try {
			bus.post(createEvent(parameters.sessionId, parameters.testId, body));
		} catch (final Exception e) {
			final Throwable rootCause = Throwables.getRootCause(e);
			if (rootCause instanceof ClientResourceException) {
				throw (ClientResourceException) rootCause;
			}
			LOGGER.error("Error while creating event for test session. [Session ID: " + parameters.sessionId + "]",
					e);
			throw new ServletException(e);
		}
		return SC_OK;
	}

	return SC_NOT_FOUND;
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
@Test
public void testPersisterConflictingVersionException() throws Exception {
    doReturn(new TreeSet<>(Lists.newArrayList("namespace?module=module&revision=2012-12-12"))).when(mockedConfigSnapshot).getCapabilities();
    final Capability cap = mock(Capability.class);
    doReturn("namespace?module=module&revision=2012-12-12").when(cap).getCapabilityUri();
    doReturn(Sets.newHashSet(cap)).when(facadeFactory).getCurrentCapabilities();
    final ConfigExecution cfgExec = mock(ConfigExecution.class);
    doReturn("cfg exec").when(cfgExec).toString();
    doReturn(cfgExec).when(facade).getConfigExecution(any(Config.class), any(Element.class));
    doNothing().when(facade).executeConfigExecution(any(ConfigExecution.class));
    doThrow(ConflictingVersionException.class).when(facade).commitSilentTransaction();
    doReturn(Sets.newHashSet(module)).when(yangStoreService).getModules();

    final ConfigPusherImpl configPusher = new ConfigPusherImpl(facadeFactory, 0, 0);

    configPusher.pushConfigs(Collections.singletonList(mockedConfigSnapshot));
    try {
        configPusher.processSingle(Lists.<AutoCloseable>newArrayList(), mBeanServer, mockedAggregator, true);
    } catch (final IllegalStateException e) {
        Throwable cause = Throwables.getRootCause(e);
        assertTrue(cause instanceof ConflictingVersionException);
        return;
    }

    fail();
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
@SuppressWarnings("nls")
@Override
public void handle(Throwable exception, SectionInfo info, SectionsController controller, SectionEvent<?> event)
{
	LOGGER.error("Error during ajax request", exception);
	info.setRendered();
	final HttpServletResponse response = info.getResponse();
	if( !response.isCommitted() )
	{
		response.reset();
		response.setStatus(500);
		response.setHeader("Content-Type", "application/json");
		try
		{
			final Map<String, Object> message = new HashMap<String, Object>();
			final Throwable rootCause = Throwables.getRootCause(exception);
			final String errorMessage = Utils.coalesce(rootCause.getMessage(), rootCause.getClass()
				.getCanonicalName());
			message.put("message", errorMessage);
			mapper.writeValue(response.getWriter(), message);
		}
		catch( IOException e )
		{
			throw new SectionsRuntimeException(e);
		}
	}
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
private boolean checkErrors(SectionInfo info)
{
	final FindUsesModel model = getModel(info);

	try
	{
		getUsage(info);
	}
	catch( Exception e )
	{
		final Throwable t = Throwables.getRootCause(e);
		LOGGER.error("Error loading usages", t);
		if( t instanceof LmsUserNotFoundException )
		{
			model.setError(CurrentLocale.get(KEY_NO_USER, ((LmsUserNotFoundException) t).getUsername()));
		}
		else
		{
			model.setError(e.getLocalizedMessage());
		}
	}

	return !Check.isEmpty(model.getError());
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
@Override
public void testConnection(String driverClass, String jdbcUrl, String username, String password)
{
	try
	{
		HikariDataSource source = new HikariDataSource();
		source.setDriverClassName(driverClass);
		source.setJdbcUrl(jdbcUrl);
		source.setUsername(username);
		source.setPassword(password);
		source.setMaximumPoolSize(1);

		String testQuery = "SELECT COUNT(*) FROM "
			+ (jdbcUrl.startsWith("jdbc:oracle") ? "ALL_TABLES" : "information_schema.tables");
		new JdbcTemplate(source).query(testQuery, IGNORE_ROWS);

		source.close();
	}
	catch( Exception ex )
	{
		LOGGER.warn("Test connection failure", ex);
		Throwable rootCause = Throwables.getRootCause(ex);
		throw new RuntimeException("Error attempting to connect or while executing test query: "
			+ rootCause.getMessage());
	}
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
protected void deliverEventToDelegate(FileWatcher watcher, FileWatcherEvent event) {
    if(!Thread.currentThread().isInterrupted()) {
        try {
            delegate.onChange(watcher, event);
        } catch (RuntimeException e) {
            if (Throwables.getRootCause(e) instanceof InterruptedException) {
                // delivery was interrupted, return silently
                return;
            }
            throw e;
        }
    } else {
        LOG.debug("Skipping event delivery since current thread is interrupted.");
    }
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
/**
 * Switch driver focus to the parent of the specified frame context element.
 * <p>
 * <b>NOTE</b> This method initially invokes {@code driver.switchTo().parentFrame()}. If that fails with
 * {@link UnsupportedCommandException}, it invokes {@code element.switchTo()} as a fallback.
 * 
 * @param element frame context element
 * @return parent search context
 */
public static SearchContext switchToParentFrame(RobustWebElement element) {
    if (canSwitchToParentFrame) {
        try {
            return element.getWrappedDriver().switchTo().parentFrame();
        } catch (WebDriverException e) {
            if (Throwables.getRootCause(e) instanceof UnsupportedCommandException) {
                canSwitchToParentFrame = false;
            } else {
                throw e;
            }
        }
    }
    return element.switchTo();
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
private Object handleWatchFailure(Throwable thrown) {
    if (Throwables.getRootCause(thrown) instanceof CancellationException &&
        !watchService.isServerStopping()) {

        // timeout happens
        return HttpResponse.of(HttpStatus.NOT_MODIFIED);
    }
    return Exceptions.throwUnsafely(thrown);
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
/**
 * Returns the creation time of this {@link Repository}.
 */
default long creationTimeMillis() {
    try {
        final List<Commit> history = history(Revision.INIT, Revision.INIT, ALL_PATH, 1).join();
        return history.get(0).when();
    } catch (CompletionException e) {
        final Throwable cause = Throwables.getRootCause(e);
        Throwables.throwIfUnchecked(cause);
        throw new StorageException("failed to retrieve the initial commit", cause);
    }
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
/**
 * Returns the author who created this {@link Repository}.
 */
default Author author() {
    try {
        final List<Commit> history = history(Revision.INIT, Revision.INIT, ALL_PATH, 1).join();
        return history.get(0).author();
    } catch (CompletionException e) {
        final Throwable cause = Throwables.getRootCause(e);
        Throwables.throwIfUnchecked(cause);
        throw new StorageException("failed to retrieve the initial commit", cause);
    }
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
CachingRepository(Repository repo, RepositoryCache cache) {
    this.repo = requireNonNull(repo, "repo");
    this.cache = requireNonNull(cache, "cache").cache;

    try {
        final List<Commit> history = repo.history(Revision.INIT, Revision.INIT, ALL_PATH, 1).join();
        firstCommit = history.get(0);
    } catch (CompletionException e) {
        final Throwable cause = Throwables.getRootCause(e);
        Throwables.throwIfUnchecked(cause);
        throw new StorageException("failed to retrieve the initial commit", cause);
    }
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
public static void handleKey(SelectionKey key) {
    ConnectionHandler handler = ((ConnectionHandler)key.attachment());
    try {
        if (handler == null)
            return;
        if (!key.isValid()) {
            handler.closeConnection(); // Key has been cancelled, make sure the socket gets closed
            return;
        }
        if (key.isReadable()) {
            // Do a socket read and invoke the connection's receiveBytes message
            int read = handler.channel.read(handler.readBuff);
            if (read == 0)
                return; // Was probably waiting on a write
            else if (read == -1) { // Socket was closed
                key.cancel();
                handler.closeConnection();
                return;
            }
            // "flip" the buffer - setting the limit to the current position and setting position to 0
            handler.readBuff.flip();
            // Use connection.receiveBytes's return value as a check that it stopped reading at the right location
            int bytesConsumed = checkNotNull(handler.connection).receiveBytes(handler.readBuff);
            checkState(handler.readBuff.position() == bytesConsumed);
            // Now drop the bytes which were read by compacting readBuff (resetting limit and keeping relative
            // position)
            handler.readBuff.compact();
        }
        if (key.isWritable())
            handler.tryWriteBytes();
    } catch (Exception e) {
        // This can happen eg if the channel closes while the thread is about to get killed
        // (ClosedByInterruptException), or if handler.connection.receiveBytes throws something
        Throwable t = Throwables.getRootCause(e);
        log.warn("Error handling SelectionKey: {} {}", t.getClass().getName(), t.getMessage() != null ? t.getMessage() : "", e);
        handler.closeConnection();
    }
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
private void handleKey(SelectionKey key) throws IOException {
    // We could have a !isValid() key here if the connection is already closed at this point
    if (key.isValid() && key.isConnectable()) { // ie a client connection which has finished the initial connect process
        // Create a ConnectionHandler and hook everything together
        PendingConnect data = (PendingConnect) key.attachment();
        StreamConnection connection = data.connection;
        SocketChannel sc = (SocketChannel) key.channel();
        ConnectionHandler handler = new ConnectionHandler(connection, key, connectedHandlers);
        try {
            if (sc.finishConnect()) {
                log.info("Connected to {}", sc.socket().getRemoteSocketAddress());
                key.interestOps((key.interestOps() | SelectionKey.OP_READ) & ~SelectionKey.OP_CONNECT).attach(handler);
                connection.connectionOpened();
                data.future.set(data.address);
            } else {
                log.warn("Failed to connect to {}", sc.socket().getRemoteSocketAddress());
                handler.closeConnection(); // Failed to connect for some reason
                data.future.setException(new ConnectException("Unknown reason"));
                data.future = null;
            }
        } catch (Exception e) {
            // If e is a CancelledKeyException, there is a race to get to interestOps after finishConnect() which
            // may cause this. Otherwise it may be any arbitrary kind of connection failure.
            // Calling sc.socket().getRemoteSocketAddress() here throws an exception, so we can only log the error itself
            Throwable cause = Throwables.getRootCause(e);
            log.warn("Failed to connect with exception: {}: {}", cause.getClass().getName(), cause.getMessage(), e);
            handler.closeConnection();
            data.future.setException(cause);
            data.future = null;
        }
    } else // Process bytes read
        ConnectionHandler.handleKey(key);
}
 

import com.google.common.base.Throwables; //導入方法依賴的package包/類
public static void crashAlert(Throwable t) {
    t.printStackTrace();
    Throwable rootCause = Throwables.getRootCause(t);
    Runnable r = () -> {
        runAlert((stage, controller) -> controller.crashAlert(stage, rootCause.toString()));
        Platform.exit();
    };
    if (Platform.isFxApplicationThread())
        r.run();
    else
        Platform.runLater(r);
}