Java Code Examples for org.springframework.util.backoff.BackOffExecution#nextBackOff()
The following examples show how to use
org.springframework.util.backoff.BackOffExecution#nextBackOff() .
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Example 1
Source File: DefaultMessageListenerContainer.java From spring-analysis-note with MIT License | 6 votes |
/** * Apply the next back-off time using the specified {@link BackOffExecution}. * <p>Return {@code true} if the back-off period has been applied and a new * attempt to recover should be made, {@code false} if no further attempt * should be made. * @since 4.1 */ protected boolean applyBackOffTime(BackOffExecution execution) { if (this.recovering && this.interrupted) { // Interrupted right before and still failing... give up. return false; } long interval = execution.nextBackOff(); if (interval == BackOffExecution.STOP) { return false; } else { try { synchronized (this.lifecycleMonitor) { this.lifecycleMonitor.wait(interval); } } catch (InterruptedException interEx) { // Re-interrupt current thread, to allow other threads to react. Thread.currentThread().interrupt(); if (this.recovering) { this.interrupted = true; } } return true; } }
Example 2
Source File: DefaultMessageListenerContainer.java From java-technology-stack with MIT License | 6 votes |
/** * Apply the next back-off time using the specified {@link BackOffExecution}. * <p>Return {@code true} if the back-off period has been applied and a new * attempt to recover should be made, {@code false} if no further attempt * should be made. * @since 4.1 */ protected boolean applyBackOffTime(BackOffExecution execution) { if (this.recovering && this.interrupted) { // Interrupted right before and still failing... give up. return false; } long interval = execution.nextBackOff(); if (interval == BackOffExecution.STOP) { return false; } else { try { synchronized (this.lifecycleMonitor) { this.lifecycleMonitor.wait(interval); } } catch (InterruptedException interEx) { // Re-interrupt current thread, to allow other threads to react. Thread.currentThread().interrupt(); if (this.recovering) { this.interrupted = true; } } return true; } }
Example 3
Source File: DefaultMessageListenerContainer.java From spring4-understanding with Apache License 2.0 | 6 votes |
/** * Apply the next back off time using the specified {@link BackOffExecution}. * <p>Return {@code true} if the back off period has been applied and a new * attempt to recover should be made, {@code false} if no further attempt * should be made. */ protected boolean applyBackOffTime(BackOffExecution execution) { long interval = execution.nextBackOff(); if (interval == BackOffExecution.STOP) { return false; } else { try { Thread.sleep(interval); } catch (InterruptedException interEx) { // Re-interrupt current thread, to allow other threads to react. Thread.currentThread().interrupt(); } } return true; }
Example 4
Source File: FiatPermissionEvaluator.java From fiat with Apache License 2.0 | 6 votes |
public <T> T retry(String description, Callable<T> callable) throws Exception { ExponentialBackOff backOff = new ExponentialBackOff( retryConfiguration.getInitialBackoffMillis(), retryConfiguration.getRetryMultiplier()); backOff.setMaxElapsedTime(retryConfiguration.getMaxBackoffMillis()); BackOffExecution backOffExec = backOff.start(); while (true) { try { return callable.call(); } catch (Throwable e) { long waitTime = backOffExec.nextBackOff(); if (waitTime == BackOffExecution.STOP) { throw e; } log.warn(description + " failed. Retrying in " + waitTime + "ms", e); TimeUnit.MILLISECONDS.sleep(waitTime); } } }
Example 5
Source File: SelfKeymasterServiceOps.java From syncope with Apache License 2.0 | 6 votes |
private void handleRetry( final NetworkService service, final Action action, final int retries, final BackOffExecution backOffExecution) { try { if (action == Action.register && retries > 0) { long nextBackoff = backOffExecution.nextBackOff(); LOG.debug("Still {} retries available for {}; waiting for {} ms", retries, service, nextBackoff); try { Thread.sleep(nextBackoff); } catch (InterruptedException e) { // ignore } retry(completionStage(action, service), service, action, retries - 1, backOffExecution); } else { LOG.debug("No more retries {} for {}", action, service); } } catch (Throwable t) { LOG.error("Could not continue {} for {}, aborting", action, service, t); } }
Example 6
Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void toStringContent() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); BackOffExecution execution = backOff.start(); assertEquals("ExponentialBackOff{currentInterval=n/a, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=2000ms, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=4000ms, multiplier=2.0}", execution.toString()); }
Example 7
Source File: FixedBackOffTests.java From spring-analysis-note with MIT License | 5 votes |
@Test public void toStringContent() { FixedBackOff backOff = new FixedBackOff(200L, 10); BackOffExecution execution = backOff.start(); assertEquals("FixedBackOff{interval=200, currentAttempts=0, maxAttempts=10}", execution.toString()); execution.nextBackOff(); assertEquals("FixedBackOff{interval=200, currentAttempts=1, maxAttempts=10}", execution.toString()); execution.nextBackOff(); assertEquals("FixedBackOff{interval=200, currentAttempts=2, maxAttempts=10}", execution.toString()); }
Example 8
Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void toStringContent() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); BackOffExecution execution = backOff.start(); assertEquals("ExponentialBackOff{currentInterval=n/a, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=2000ms, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=4000ms, multiplier=2.0}", execution.toString()); }
Example 9
Source File: FixedBackOffTests.java From java-technology-stack with MIT License | 5 votes |
@Test public void toStringContent() { FixedBackOff backOff = new FixedBackOff(200L, 10); BackOffExecution execution = backOff.start(); assertEquals("FixedBackOff{interval=200, currentAttempts=0, maxAttempts=10}", execution.toString()); execution.nextBackOff(); assertEquals("FixedBackOff{interval=200, currentAttempts=1, maxAttempts=10}", execution.toString()); execution.nextBackOff(); assertEquals("FixedBackOff{interval=200, currentAttempts=2, maxAttempts=10}", execution.toString()); }
Example 10
Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void toStringContent() { ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0); BackOffExecution execution = backOff.start(); assertEquals("ExponentialBackOff{currentInterval=n/a, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=2000ms, multiplier=2.0}", execution.toString()); execution.nextBackOff(); assertEquals("ExponentialBackOff{currentInterval=4000ms, multiplier=2.0}", execution.toString()); }
Example 11
Source File: FixedBackOffTests.java From spring4-understanding with Apache License 2.0 | 5 votes |
@Test public void toStringContent() { FixedBackOff backOff = new FixedBackOff(200L, 10); BackOffExecution execution = backOff.start(); assertEquals("FixedBackOff{interval=200, currentAttempts=0, maxAttempts=10}", execution.toString()); execution.nextBackOff(); assertEquals("FixedBackOff{interval=200, currentAttempts=1, maxAttempts=10}", execution.toString()); execution.nextBackOff(); assertEquals("FixedBackOff{interval=200, currentAttempts=2, maxAttempts=10}", execution.toString()); }
Example 12
Source File: RetrofitConfig.java From fiat with Apache License 2.0 | 5 votes |
@Override public Response intercept(Chain chain) throws IOException { ExponentialBackOff backoff = new ExponentialBackOff(); backoff.setMaxElapsedTime(maxElapsedBackoffMs); BackOffExecution backOffExec = backoff.start(); Response response = null; long waitTime = 0; while (waitTime != BackOffExecution.STOP) { Request request = chain.request(); response = chain.proceed(request); if (response.isSuccessful() || NON_RETRYABLE_METHODS.contains(request.method()) || response.code() == 404) { return response; } try { waitTime = backOffExec.nextBackOff(); if (waitTime != BackOffExecution.STOP) { if (response.body() != null) { response.body().close(); } log.warn( "Request for " + request.url().toString() + " failed. Backing off for " + waitTime + "ms"); Thread.sleep(waitTime); } } catch (Throwable ignored) { break; } } return response; }
Example 13
Source File: RetryCommand.java From mojito with Apache License 2.0 | 5 votes |
@Override public void execute() throws CommandException { List<String> commandToExecute = getCommandToExecute(); ExponentialBackOff exponentialBackOff = new ExponentialBackOff(initialInterval, multiplier); BackOffExecution backOffExecution = exponentialBackOff.start(); int numberOfAttempts = 0; int exitCode = -1; while (exitCode !=0 && numberOfAttempts < maxNumberOfAttempts) { try { numberOfAttempts++; exitCode = executeCommand(commandToExecute); if (exitCode != 0) { consoleWriter.a("Attempt: ").fg(Ansi.Color.CYAN) .a(numberOfAttempts).a("/").a(maxNumberOfAttempts).reset() .a(" failed. "); if (numberOfAttempts < maxNumberOfAttempts) { long nextBackOff = backOffExecution.nextBackOff(); consoleWriter.a("Retry in ").fg(Ansi.Color.CYAN).a(nextBackOff / 1000.0).reset().a(" seconds").println(); Thread.sleep(nextBackOff); } else { consoleWriter.a("Abort").println(); } } } catch (CommandException ce) { throw ce; } catch (Throwable t) { throw new CommandException("Couldn't run command with retry", t); } } if (exitCode != 0) { throw new CommandWithExitStatusException(exitCode); } }
Example 14
Source File: UserRolesSyncer.java From fiat with Apache License 2.0 | 4 votes |
public long syncAndReturn(List<String> roles) { FixedBackOff backoff = new FixedBackOff(); backoff.setInterval(retryIntervalMs); backoff.setMaxAttempts(Math.floorDiv(syncDelayTimeoutMs, retryIntervalMs) + 1); BackOffExecution backOffExec = backoff.start(); // after this point the execution will get rescheduled final long timeout = System.currentTimeMillis() + syncDelayTimeoutMs; if (!isServerHealthy()) { log.warn( "Server is currently UNHEALTHY. User permission role synchronization and " + "resolution may not complete until this server becomes healthy again."); } // Ensure we're going to reload app and service account definitions permissionsResolver.clearCache(); while (true) { try { Map<String, UserPermission> combo = new HashMap<>(); // force a refresh of the unrestricted user in case the backing repository is empty: combo.put(UnrestrictedResourceConfig.UNRESTRICTED_USERNAME, new UserPermission()); Map<String, UserPermission> temp; if (!(temp = getUserPermissions(roles)).isEmpty()) { combo.putAll(temp); } if (!(temp = getServiceAccountsAsMap(roles)).isEmpty()) { combo.putAll(temp); } return updateUserPermissions(combo); } catch (ProviderException | PermissionResolutionException ex) { registry .counter(metricName("syncFailure"), "cause", ex.getClass().getSimpleName()) .increment(); Status status = healthIndicator.health().getStatus(); long waitTime = backOffExec.nextBackOff(); if (waitTime == BackOffExecution.STOP || System.currentTimeMillis() > timeout) { String cause = (waitTime == BackOffExecution.STOP) ? "backoff-exhausted" : "timeout"; registry.counter("syncAborted", "cause", cause).increment(); log.error("Unable to resolve service account permissions.", ex); return 0; } String message = new StringBuilder("User permission sync failed. ") .append("Server status is ") .append(status) .append(". Trying again in ") .append(waitTime) .append(" ms. Cause:") .append(ex.getMessage()) .toString(); if (log.isDebugEnabled()) { log.debug(message, ex); } else { log.warn(message); } try { Thread.sleep(waitTime); } catch (InterruptedException ignored) { } } finally { isServerHealthy(); } } }