private static List<String> safeListRecursive(final ZooKeeperClient client, final String path) throws KeeperException { try { return client.listRecursive(path); } catch (NoNodeException e) { return ImmutableList.of(); } } }
@Override public List<String> listRecursive(String path) throws KeeperException { return reporter.time(tag, "listRecursive", () -> client.listRecursive(path)); }
final List<String> nodes = newArrayList(reverse(client.listRecursive(configHostJobPath))); nodes.add(Paths.configJobHost(jobId, host));
final List<String> nodes = newArrayList(reverse(client.listRecursive(configHostJobPath))); nodes.add(Paths.configJobHost(jobId, host));
private List<String> safeListRecursive(final ZooKeeperClient client, final String path) throws KeeperException { try { return client.listRecursive(path); } catch (NoNodeException e) { return ImmutableList.of(); } }
@Override public List<String> listRecursive(String path) throws KeeperException { try { return client.listRecursive(path); } catch (KeeperException e) { reporter.checkException(e, tag, "listRecursive"); throw e; } }
private List<ZooKeeperOperation> getUndeployOperations(final ZooKeeperClient client, final String host, final JobId jobId, final String token) throws HostNotFoundException, JobNotDeployedException, TokenVerificationException { assertHostExists(client, host); final Deployment deployment = getDeployment(host, jobId); if (deployment == null) { throw new JobNotDeployedException(host, jobId); } final Job job = getJob(client, jobId); verifyToken(token, job); final String configHostJobPath = Paths.configHostJob(host, jobId); try { // use listRecursive to remove both job node and its child creation node final List<String> nodes = newArrayList(reverse(client.listRecursive(configHostJobPath))); nodes.add(Paths.configJobHost(jobId, host)); final List<Integer> staticPorts = staticPorts(job); for (int port : staticPorts) { nodes.add(Paths.configHostPort(host, port)); } return ImmutableList.of(delete(nodes)); } catch (NoNodeException e) { // This method is racy since it's possible someone undeployed the job after we called // getDeployment and checked the job exists. If we now discover the job is undeployed, // throw an exception and handle it the same as if we discovered this earlier. throw new JobNotDeployedException(host, jobId); } catch (KeeperException e) { throw new HeliosRuntimeException("calculating undeploy operations failed", e); } }
final List<String> nodes = newArrayList(reverse(client.listRecursive(configHostJobPath))); nodes.add(Paths.configJobHost(jobId, host));