Example usage for com.google.common.util.concurrent ListenableFutureTask create

Introduction

In this page you can find the example usage for com.google.common.util.concurrent ListenableFutureTask create.

Prototype

public static <V> ListenableFutureTask<V> create(Callable<V> callable) 

Source Link

Document

Creates a ListenableFutureTask that will upon running, execute the given Callable .

Usage

From source file:com.vmware.photon.controller.deployer.dcp.task.CreateIsoTaskService.java

/**
 * This method performs document state updates in response to an operation which
 * sets the state to STARTED.//from   w w  w  .j  a va  2s .c om
 *
 * @param currentState Supplies the current state object.
 */
private void attachAndUploadIso(final State currentState, final String isoFile) throws IOException {
    final ApiClient client = HostUtils.getApiClient(this);
    ListenableFutureTask<Task> futureTask = ListenableFutureTask.create(new Callable<Task>() {
        @Override
        public Task call() {
            try {
                return client.getVmApi().uploadAndAttachIso(currentState.vmId, isoFile);
            } catch (RuntimeException e) {
                throw e;
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    });

    HostUtils.getListeningExecutorService(this).submit(futureTask);

    FutureCallback<Task> futureCallback = new FutureCallback<Task>() {
        @Override
        public void onSuccess(@Nullable Task result) {
            try {
                if (null == result) {
                    failTask(new IllegalStateException("IsoUploadAndAttach returned null"));
                    return;
                }
                Files.deleteIfExists(Paths.get(isoFile));
                processTask(currentState, result);
            } catch (Throwable e) {
                failTask(e);
            }
        }

        @Override
        public void onFailure(Throwable t) {
            failTask(t);
        }
    };

    Futures.addCallback(futureTask, futureCallback);
}

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From source file:org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector.java

/**
 * Checks for the DataStore consistency and reports the number of missing blobs still referenced.
 * // www.ja v a2s  .  c  o m
 * @return the missing blobs
 * @throws Exception
 */
@Override
public long checkConsistency() throws Exception {
    boolean threw = true;
    GarbageCollectorFileState fs = new GarbageCollectorFileState(root);
    long candidates = 0;

    try {
        LOG.info("Starting blob consistency check");

        // Find all blobs available in the blob store
        ListenableFutureTask<Integer> blobIdRetriever = ListenableFutureTask.create(new BlobIdRetriever(fs));
        executor.execute(blobIdRetriever);

        // Mark all used blob references
        iterateNodeTree(fs);

        try {
            blobIdRetriever.get();
        } catch (ExecutionException e) {
            LOG.warn("Error occurred while fetching all the blobIds from the BlobStore");
            threw = false;
            throw e;
        }

        LOG.trace("Starting difference phase of the consistency check");
        FileLineDifferenceIterator iter = new FileLineDifferenceIterator(fs.getAvailableRefs(),
                fs.getMarkedRefs(), transformer);
        candidates = calculateDifference(fs, iter);
        LOG.trace("Ending difference phase of the consistency check");

        LOG.info("Consistency check found [{}] missing blobs", candidates);
        if (candidates > 0) {
            LOG.warn(
                    "Consistency check failure in the the blob store : {}, check missing candidates in file {}",
                    blobStore, fs.getGcCandidates().getAbsolutePath());
        }
    } finally {
        if (!LOG.isTraceEnabled() && candidates == 0) {
            Closeables.close(fs, threw);
        }
    }
    return candidates;
}

---

From source file:com.vmware.photon.controller.deployer.xenon.task.ProvisionHostTaskService.java

private void processConfigureSyslogSubStage(DeploymentService.State deploymentState,
        HostService.State hostState) {

    List<String> command = Arrays.asList("./" + CONFIGURE_SYSLOG_SCRIPT_NAME, hostState.hostAddress,
            hostState.userName, hostState.password, deploymentState.syslogEndpoint);

    DeployerContext deployerContext = HostUtils.getDeployerContext(this);

    File scriptLogFile = new File(deployerContext.getScriptLogDirectory(),
            CONFIGURE_SYSLOG_SCRIPT_NAME + "-" + hostState.hostAddress + "-"
                    + ServiceUtils.getIDFromDocumentSelfLink(hostState.documentSelfLink) + ".log");

    ScriptRunner scriptRunner = new ScriptRunner.Builder(command, deployerContext.getScriptTimeoutSec())
            .directory(deployerContext.getScriptDirectory())
            .redirectOutput(ProcessBuilder.Redirect.to(scriptLogFile)).redirectErrorStream(true).build();

    ListenableFutureTask<Integer> futureTask = ListenableFutureTask.create(scriptRunner);
    HostUtils.getListeningExecutorService(this).submit(futureTask);

    Futures.addCallback(futureTask, new FutureCallback<Integer>() {
        @Override//w  w  w  . ja  v a2 s .  c om
        public void onSuccess(@javax.validation.constraints.NotNull Integer result) {
            try {
                if (result != 0) {
                    logSyslogConfigurationErrorAndFail(hostState, result, scriptLogFile);
                } else {
                    sendStageProgressPatch(TaskState.TaskStage.STARTED, TaskState.SubStage.REMOVE_VIBS);
                }
            } catch (Throwable t) {
                failTask(t);
            }
        }

        @Override
        public void onFailure(Throwable throwable) {
            failTask(throwable);
        }
    });
}

---

From source file:com.vmware.photon.controller.deployer.xenon.task.CreateDhcpVmTaskService.java

private void processConfigIso(State currentState, VmService.State vmState, HostService.State hostState)
        throws Throwable {

    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_GATEWAY));
    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_IP));
    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_NETMASK));
    checkState(//  w w w  . ja  va 2  s. com
            hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_DNS_SERVER));

    String gateway = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_GATEWAY);
    String ipAddress = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_IP);
    String netmask = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_NETMASK);
    String dnsEndpointList = hostState.metadata
            .get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_DNS_SERVER);
    if (!Strings.isNullOrEmpty(dnsEndpointList)) {
        dnsEndpointList = Stream.of(dnsEndpointList.split(",")).map((dnsServer) -> "DNS=" + dnsServer + "\n")
                .collect(StringBuilder::new, StringBuilder::append, StringBuilder::append).toString();
    }

    DeployerContext deployerContext = HostUtils.getDeployerContext(this);
    String scriptDirectory = deployerContext.getScriptDirectory();

    String userDataConfigFileContent = new String(
            Files.readAllBytes(Paths.get(scriptDirectory, "user-data.template")), StandardCharsets.UTF_8)
                    .replace("$GATEWAY", gateway)
                    .replace("$ADDRESS", new SubnetUtils(ipAddress, netmask).getInfo().getCidrSignature())
                    .replace("$DNS", dnsEndpointList);

    if (currentState.ntpEndpoint != null) {
        userDataConfigFileContent = userDataConfigFileContent.replace("$NTP", currentState.ntpEndpoint);
    }

    String metadataConfigFileContent = new String(
            Files.readAllBytes(Paths.get(scriptDirectory, "meta-data.template")), StandardCharsets.UTF_8)
                    .replace("$INSTANCE_ID", vmState.name).replace("$LOCAL_HOSTNAME", vmState.name);

    Path vmConfigDirectoryPath = Files.createTempDirectory("iso-" + currentState.vmId).toAbsolutePath();
    Path userDataConfigFilePath = vmConfigDirectoryPath.resolve("user-data.yml");
    Files.write(userDataConfigFilePath, userDataConfigFileContent.getBytes(StandardCharsets.UTF_8));
    Path metadataConfigFilePath = vmConfigDirectoryPath.resolve("meta-data.yml");
    Files.write(metadataConfigFilePath, metadataConfigFileContent.getBytes(StandardCharsets.UTF_8));
    Path isoFilePath = vmConfigDirectoryPath.resolve("config.iso");

    List<String> command = new ArrayList<>();
    command.add("./" + SCRIPT_NAME);
    command.add(isoFilePath.toAbsolutePath().toString());
    command.add(userDataConfigFilePath.toAbsolutePath().toString());
    command.add(metadataConfigFilePath.toAbsolutePath().toString());
    command.add(currentState.serviceConfigDirectory);

    File scriptLogFile = new File(deployerContext.getScriptLogDirectory(), SCRIPT_NAME + "-" + vmState.vmId
            + "-" + ServiceUtils.getIDFromDocumentSelfLink(currentState.documentSelfLink) + ".log");

    ScriptRunner scriptRunner = new ScriptRunner.Builder(command, deployerContext.getScriptTimeoutSec())
            .directory(deployerContext.getScriptDirectory())
            .redirectOutput(ProcessBuilder.Redirect.to(scriptLogFile)).build();

    ListenableFutureTask<Integer> futureTask = ListenableFutureTask.create(scriptRunner);
    HostUtils.getListeningExecutorService(this).submit(futureTask);
    Futures.addCallback(futureTask, new FutureCallback<Integer>() {
        @Override
        public void onSuccess(@javax.validation.constraints.NotNull Integer result) {
            try {
                if (result != 0) {
                    logScriptErrorAndFail(currentState, result, scriptLogFile);
                } else {
                    State patchState = buildPatch(TaskState.TaskStage.STARTED, TaskState.SubStage.ATTACH_ISO,
                            null);
                    patchState.vmConfigDirectory = vmConfigDirectoryPath.toAbsolutePath().toString();
                    TaskUtils.sendSelfPatch(CreateDhcpVmTaskService.this, patchState);
                }
            } catch (Throwable t) {
                failTask(t);
            }
        }

        @Override
        public void onFailure(Throwable throwable) {
            failTask(throwable);
        }
    });
}

---

From source file:com.vmware.photon.controller.deployer.xenon.task.ProvisionHostTaskService.java

private void processInstallVibsSubStage(VibService.State vibState, DeploymentService.State deploymentState,
        HostService.State hostState, Boolean createCert) {

    String oAuthDomain = "";
    String oAuthAddress = "";
    String oAuthPassword = "";
    if (deploymentState.oAuthTenantName != null) {
        oAuthDomain = deploymentState.oAuthTenantName;
    }/*from  ww  w .  j ava 2 s . co  m*/
    if (deploymentState.oAuthServerAddress != null) {
        oAuthAddress = deploymentState.oAuthServerAddress;
    }
    if (deploymentState.oAuthPassword != null) {
        oAuthPassword = deploymentState.oAuthPassword;
    }
    List<String> command = Arrays.asList("./" + INSTALL_VIB_SCRIPT_NAME, hostState.hostAddress,
            hostState.userName, hostState.password, vibState.uploadPath, createCert.toString(), oAuthDomain,
            oAuthAddress, oAuthPassword);

    DeployerContext deployerContext = HostUtils.getDeployerContext(this);

    File scriptLogFile = new File(deployerContext.getScriptLogDirectory(),
            INSTALL_VIB_SCRIPT_NAME + "-" + hostState.hostAddress + "-"
                    + ServiceUtils.getIDFromDocumentSelfLink(vibState.documentSelfLink) + ".log");

    ScriptRunner scriptRunner = new ScriptRunner.Builder(command, deployerContext.getScriptTimeoutSec())
            .directory(deployerContext.getScriptDirectory())
            .redirectOutput(ProcessBuilder.Redirect.to(scriptLogFile)).redirectErrorStream(true).build();

    ListenableFutureTask<Integer> futureTask = ListenableFutureTask.create(scriptRunner);
    HostUtils.getListeningExecutorService(this).submit(futureTask);

    Futures.addCallback(futureTask, new FutureCallback<Integer>() {
        @Override
        public void onSuccess(@javax.validation.constraints.NotNull Integer result) {
            try {
                if (result != 0) {
                    logVibInstallationFailureAndFail(vibState, hostState, result, scriptLogFile);
                } else {
                    deleteVibService(vibState);
                }
            } catch (Throwable t) {
                failTask(t);
            }
        }

        @Override
        public void onFailure(Throwable throwable) {
            failTask(throwable);
        }
    });
}

---

From source file:com.vmware.photon.controller.deployer.xenon.task.CreateManagementVmTaskService.java

private void processConfigIso(State currentState, VmService.State vmState, HostService.State hostState)
        throws Throwable {

    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_GATEWAY));
    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_IP));
    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_NETMASK));
    checkState(//  www . ja  v  a 2s . c om
            hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_DNS_SERVER));

    String gateway = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_GATEWAY);
    String ipAddress = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_IP);
    String netmask = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_NETMASK);
    String dnsEndpointList = hostState.metadata
            .get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_DNS_SERVER);
    String allowedServices = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_ALLOWED_SERVICES);

    if (!Strings.isNullOrEmpty(dnsEndpointList)) {
        dnsEndpointList = Stream.of(dnsEndpointList.split(",")).map((dnsServer) -> "DNS=" + dnsServer + "\n")
                .collect(StringBuilder::new, StringBuilder::append, StringBuilder::append).toString();
    }

    DeployerContext deployerContext = HostUtils.getDeployerContext(this);
    String scriptDirectory = deployerContext.getScriptDirectory();

    String domainName = DOMAIN_NAME;
    if (currentState.oAuthTenantName != null) {
        domainName = currentState.oAuthTenantName;
    }

    String userDataConfigFileContent = new String(
            Files.readAllBytes(Paths.get(scriptDirectory, "user-data.template")), StandardCharsets.UTF_8)
                    .replace("$GATEWAY", gateway)
                    .replace("$ADDRESS", new SubnetUtils(ipAddress, netmask).getInfo().getCidrSignature())
                    .replace("$DOMAIN_NAME", domainName);

    if (currentState.ntpEndpoint != null) {
        userDataConfigFileContent = userDataConfigFileContent.replace("$NTP", currentState.ntpEndpoint);
    }

    // If auth is enabled and this VM is the lightwave server, then set dns to its own address and add domain name.
    // If auth is enabled and this VM is not the lightwave server, then set dns to lightwave VM address and add
    // domain name.
    // If auth is not enabled, then use the default dns server, don't set domain.
    if (currentState.isAuthEnabled && vmState.ipAddress.equals(currentState.oAuthServerAddress)) {
        userDataConfigFileContent = userDataConfigFileContent.replace("$DNS", "DNS=" + vmState.ipAddress)
                .replace("$DOMAINS", "Domains=" + domainName);
    } else if (currentState.isAuthEnabled) {
        userDataConfigFileContent = userDataConfigFileContent
                .replace("$DNS", "DNS=" + currentState.oAuthServerAddress)
                .replace("$DOMAINS", "Domains=" + domainName);
    } else {
        userDataConfigFileContent = userDataConfigFileContent.replace("$DNS", dnsEndpointList)
                .replace("\n        $DOMAINS", "");
    }

    String metadataConfigFileContent = new String(
            Files.readAllBytes(Paths.get(scriptDirectory, "meta-data.template")), StandardCharsets.UTF_8)
                    .replace("$INSTANCE_ID", vmState.name).replace("$LOCAL_HOSTNAME", vmState.name);

    Path vmConfigDirectoryPath = Files.createTempDirectory("iso-" + currentState.vmId).toAbsolutePath();
    Path userDataConfigFilePath = vmConfigDirectoryPath.resolve("user-data.yml");
    Files.write(userDataConfigFilePath, userDataConfigFileContent.getBytes(StandardCharsets.UTF_8));
    Path metadataConfigFilePath = vmConfigDirectoryPath.resolve("meta-data.yml");
    Files.write(metadataConfigFilePath, metadataConfigFileContent.getBytes(StandardCharsets.UTF_8));
    Path isoFilePath = vmConfigDirectoryPath.resolve("config.iso");

    List<String> command = new ArrayList<>();
    command.add("./" + SCRIPT_NAME);
    command.add(isoFilePath.toAbsolutePath().toString());
    command.add(userDataConfigFilePath.toAbsolutePath().toString());
    command.add(metadataConfigFilePath.toAbsolutePath().toString());
    command.add(currentState.serviceConfigDirectory);

    File scriptLogFile = new File(deployerContext.getScriptLogDirectory(), SCRIPT_NAME + "-" + vmState.vmId
            + "-" + ServiceUtils.getIDFromDocumentSelfLink(currentState.documentSelfLink) + ".log");

    ScriptRunner scriptRunner = new ScriptRunner.Builder(command, deployerContext.getScriptTimeoutSec())
            .directory(deployerContext.getScriptDirectory())
            .redirectOutput(ProcessBuilder.Redirect.to(scriptLogFile)).build();

    ListenableFutureTask<Integer> futureTask = ListenableFutureTask.create(scriptRunner);
    HostUtils.getListeningExecutorService(this).submit(futureTask);
    Futures.addCallback(futureTask, new FutureCallback<Integer>() {
        @Override
        public void onSuccess(@javax.validation.constraints.NotNull Integer result) {
            try {
                if (result != 0) {
                    logScriptErrorAndFail(currentState, result, scriptLogFile);
                } else {
                    State patchState = buildPatch(TaskState.TaskStage.STARTED, TaskState.SubStage.ATTACH_ISO,
                            null);
                    patchState.vmConfigDirectory = vmConfigDirectoryPath.toAbsolutePath().toString();
                    TaskUtils.sendSelfPatch(CreateManagementVmTaskService.this, patchState);
                }
            } catch (Throwable t) {
                failTask(t);
            }
        }

        @Override
        public void onFailure(Throwable throwable) {
            failTask(throwable);
        }
    });
}

---

From source file:com.vmware.photon.controller.deployer.dcp.task.CreateManagementVmTaskService.java

private void processConfigIso(State currentState, VmService.State vmState, HostService.State hostState)
        throws Throwable {

    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_GATEWAY));
    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_IP));
    checkState(hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_NETMASK));
    checkState(/* w ww . j a  v a 2 s.c o  m*/
            hostState.metadata.containsKey(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_DNS_SERVER));

    String gateway = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_GATEWAY);
    String ipAddress = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_IP);
    String netmask = hostState.metadata.get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_NETMASK);
    String dnsEndpointList = hostState.metadata
            .get(HostService.State.METADATA_KEY_NAME_MANAGEMENT_NETWORK_DNS_SERVER);
    if (!Strings.isNullOrEmpty(dnsEndpointList)) {
        dnsEndpointList = Stream.of(dnsEndpointList.split(",")).map((dnsServer) -> "DNS=" + dnsServer + "\n")
                .collect(StringBuilder::new, StringBuilder::append, StringBuilder::append).toString();
    }

    DeployerContext deployerContext = HostUtils.getDeployerContext(this);
    String scriptDirectory = deployerContext.getScriptDirectory();

    String userDataConfigFileContent = new String(
            Files.readAllBytes(Paths.get(scriptDirectory, "user-data.template")), StandardCharsets.UTF_8)
                    .replace("$GATEWAY", gateway)
                    .replace("$ADDRESS", new SubnetUtils(ipAddress, netmask).getInfo().getCidrSignature())
                    .replace("$DNS", dnsEndpointList);

    if (currentState.ntpEndpoint != null) {
        userDataConfigFileContent = userDataConfigFileContent.replace("$NTP", currentState.ntpEndpoint);
    }

    String metadataConfigFileContent = new String(
            Files.readAllBytes(Paths.get(scriptDirectory, "meta-data.template")), StandardCharsets.UTF_8)
                    .replace("$INSTANCE_ID", vmState.name).replace("$LOCAL_HOSTNAME", vmState.name);

    Path vmConfigDirectoryPath = Files.createTempDirectory("iso-" + currentState.vmId).toAbsolutePath();
    Path userDataConfigFilePath = vmConfigDirectoryPath.resolve("user-data.yml");
    Files.write(userDataConfigFilePath, userDataConfigFileContent.getBytes(StandardCharsets.UTF_8));
    Path metadataConfigFilePath = vmConfigDirectoryPath.resolve("meta-data.yml");
    Files.write(metadataConfigFilePath, metadataConfigFileContent.getBytes(StandardCharsets.UTF_8));
    Path isoFilePath = vmConfigDirectoryPath.resolve("config.iso");

    List<String> command = new ArrayList<>();
    command.add("./" + SCRIPT_NAME);
    command.add(isoFilePath.toAbsolutePath().toString());
    command.add(userDataConfigFilePath.toAbsolutePath().toString());
    command.add(metadataConfigFilePath.toAbsolutePath().toString());
    command.add(currentState.serviceConfigDirectory);

    File scriptLogFile = new File(deployerContext.getScriptLogDirectory(), SCRIPT_NAME + "-" + vmState.vmId
            + "-" + ServiceUtils.getIDFromDocumentSelfLink(currentState.documentSelfLink) + ".log");

    ScriptRunner scriptRunner = new ScriptRunner.Builder(command, deployerContext.getScriptTimeoutSec())
            .directory(deployerContext.getScriptDirectory())
            .redirectOutput(ProcessBuilder.Redirect.to(scriptLogFile)).build();

    ListenableFutureTask<Integer> futureTask = ListenableFutureTask.create(scriptRunner);
    HostUtils.getListeningExecutorService(this).submit(futureTask);
    Futures.addCallback(futureTask, new FutureCallback<Integer>() {
        @Override
        public void onSuccess(@javax.validation.constraints.NotNull Integer result) {
            try {
                if (result != 0) {
                    logScriptErrorAndFail(currentState, result, scriptLogFile);
                } else {
                    State patchState = buildPatch(TaskState.TaskStage.STARTED, TaskState.SubStage.ATTACH_ISO,
                            null);
                    patchState.vmConfigDirectory = vmConfigDirectoryPath.toAbsolutePath().toString();
                    TaskUtils.sendSelfPatch(CreateManagementVmTaskService.this, patchState);
                }
            } catch (Throwable t) {
                failTask(t);
            }
        }

        @Override
        public void onFailure(Throwable throwable) {
            failTask(throwable);
        }
    });
}

---

From source file:com.vmware.photon.controller.deployer.dcp.task.CreateManagementVmTaskService.java

private void callAttachIso(State currentState) {

    ////  w w w  . ja v  a 2  s .c o  m
    // N.B. The uploadAndAttachIso call is performed on a separate thread because it is blocking.
    // This behavior can be removed if and when an asynchronous version of this call is added to
    // the Java API client library.
    //

    ListenableFutureTask<Task> futureTask = ListenableFutureTask
            .create(() -> HostUtils.getApiClient(this).getVmApi().uploadAndAttachIso(currentState.vmId,
                    Paths.get(currentState.vmConfigDirectory, "config.iso").toAbsolutePath().toString()));

    HostUtils.getListeningExecutorService(this).submit(futureTask);
    Futures.addCallback(futureTask, new FutureCallback<Task>() {
        @Override
        public void onSuccess(@javax.validation.constraints.NotNull Task task) {
            try {
                processAttachIsoTaskResult(currentState, task);
            } catch (Throwable t) {
                failTask(t);
            }
        }

        @Override
        public void onFailure(Throwable throwable) {
            failTask(throwable);
        }
    });
}

---

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