Examples with Application io.cdap.cdap.api.app.Application used on opensource projects

Example 1 with Application

use of io.cdap.cdap.api.app.Application in project cdap by caskdata.

the class ApplicationLifecycleService method updateApplicationInternal.

/**
 * Updates an application config by applying given update actions. The app should know how to apply these actions
 * to its config.
 */
private void updateApplicationInternal(ApplicationId appId, @Nullable String currentConfigStr, ProgramTerminator programTerminator, ArtifactDetail artifactDetail, List<ApplicationConfigUpdateAction> updateActions, Set<ArtifactScope> allowedArtifactScopes, boolean allowSnapshot, @Nullable KerberosPrincipalId ownerPrincipal, boolean updateSchedules) throws Exception {
    ApplicationClass appClass = Iterables.getFirst(artifactDetail.getMeta().getClasses().getApps(), null);
    if (appClass == null) {
        // This should never happen.
        throw new IllegalStateException(String.format("No application class found in artifact '%s' in namespace '%s'.", artifactDetail.getDescriptor().getArtifactId(), appId.getParent()));
    }
    io.cdap.cdap.proto.id.ArtifactId artifactId = Artifacts.toProtoArtifactId(appId.getParent(), artifactDetail.getDescriptor().getArtifactId());
    EntityImpersonator classLoaderImpersonator = new EntityImpersonator(artifactId, this.impersonator);
    String updatedAppConfig;
    DefaultApplicationUpdateContext updateContext = new DefaultApplicationUpdateContext(appId.getParent(), appId, artifactDetail.getDescriptor().getArtifactId(), artifactRepository, currentConfigStr, updateActions, allowedArtifactScopes, allowSnapshot);
    try (CloseableClassLoader artifactClassLoader = artifactRepository.createArtifactClassLoader(artifactDetail.getDescriptor(), classLoaderImpersonator)) {
        Object appMain = artifactClassLoader.loadClass(appClass.getClassName()).newInstance();
        // Run config update logic for the application to generate updated config.
        if (!(appMain instanceof Application)) {
            throw new IllegalStateException(String.format("Application main class is of invalid type: %s", appMain.getClass().getName()));
        }
        Application app = (Application) appMain;
        Type configType = Artifacts.getConfigType(app.getClass());
        if (!app.isUpdateSupported()) {
            String errorMessage = String.format("Application %s does not support update.", appId);
            throw new UnsupportedOperationException(errorMessage);
        }
        ApplicationUpdateResult<?> updateResult = app.updateConfig(updateContext);
        updatedAppConfig = GSON.toJson(updateResult.getNewConfig(), configType);
    }
    // Deploy application with with potentially new app config and new artifact.
    AppDeploymentInfo deploymentInfo = new AppDeploymentInfo(artifactId, artifactDetail.getDescriptor().getLocation(), appId.getParent(), appClass, appId.getApplication(), appId.getVersion(), updatedAppConfig, ownerPrincipal, updateSchedules, null);
    Manager<AppDeploymentInfo, ApplicationWithPrograms> manager = managerFactory.create(programTerminator);
    // TODO: (CDAP-3258) Manager needs MUCH better error handling.
    ApplicationWithPrograms applicationWithPrograms;
    try {
        applicationWithPrograms = manager.deploy(deploymentInfo).get();
    } catch (ExecutionException e) {
        Throwables.propagateIfPossible(e.getCause(), Exception.class);
        throw Throwables.propagate(e.getCause());
    }
    adminEventPublisher.publishAppCreation(applicationWithPrograms.getApplicationId(), applicationWithPrograms.getSpecification());
}

Example 2 with Application

use of io.cdap.cdap.api.app.Application in project cdap by caskdata.

the class DefaultArtifactInspector method inspectApplications.

private ArtifactClasses.Builder inspectApplications(Id.Artifact artifactId, ArtifactClasses.Builder builder, Location artifactLocation, ClassLoader artifactClassLoader) throws IOException, InvalidArtifactException {
    // right now we force users to include the application main class as an attribute in their manifest,
    // which forces them to have a single application class.
    // in the future, we may want to let users do this or maybe specify a list of classes or
    // a package that will be searched for applications, to allow multiple applications in a single artifact.
    String mainClassName;
    try {
        Manifest manifest = BundleJarUtil.getManifest(artifactLocation);
        if (manifest == null) {
            return builder;
        }
        Attributes manifestAttributes = manifest.getMainAttributes();
        if (manifestAttributes == null) {
            return builder;
        }
        mainClassName = manifestAttributes.getValue(ManifestFields.MAIN_CLASS);
    } catch (ZipException e) {
        throw new InvalidArtifactException(String.format("Couldn't unzip artifact %s, please check it is a valid jar file.", artifactId), e);
    }
    if (mainClassName == null) {
        return builder;
    }
    try {
        Class<?> mainClass = artifactClassLoader.loadClass(mainClassName);
        if (!(Application.class.isAssignableFrom(mainClass))) {
            // possible for 3rd party plugin artifacts to have the main class set
            return builder;
        }
        Application app = (Application) mainClass.newInstance();
        java.lang.reflect.Type configType;
        // we can deserialize the config into that object. Otherwise it'll just be a Config
        try {
            configType = Artifacts.getConfigType(app.getClass());
        } catch (Exception e) {
            throw new InvalidArtifactException(String.format("Could not resolve config type for Application class %s in artifact %s. " + "The type must extend Config and cannot be parameterized.", mainClassName, artifactId));
        }
        Schema configSchema = configType == Config.class ? null : schemaGenerator.generate(configType);
        builder.addApp(new ApplicationClass(mainClassName, "", configSchema, getArtifactRequirements(app.getClass())));
    } catch (ClassNotFoundException e) {
        throw new InvalidArtifactException(String.format("Could not find Application main class %s in artifact %s.", mainClassName, artifactId));
    } catch (UnsupportedTypeException e) {
        throw new InvalidArtifactException(String.format("Config for Application %s in artifact %s has an unsupported schema. " + "The type must extend Config and cannot be parameterized.", mainClassName, artifactId));
    } catch (InstantiationException | IllegalAccessException e) {
        throw new InvalidArtifactException(String.format("Could not instantiate Application class %s in artifact %s.", mainClassName, artifactId), e);
    }
    return builder;
}

Example 3 with Application

use of io.cdap.cdap.api.app.Application in project cdap by caskdata.

the class IntegrationTestManager method deployApplication.

@Override
@SuppressWarnings("unchecked")
public ApplicationManager deployApplication(NamespaceId namespace, Class<? extends Application> applicationClz, @Nullable Config configObject, File... bundleEmbeddedJars) {
    // See if the application class comes from file or jar.
    // If it's from JAR, no need to trace dependency since it should already be in an application jar.
    URL appClassURL = applicationClz.getClassLoader().getResource(applicationClz.getName().replace('.', '/') + ".class");
    // Should never happen, otherwise the ClassLoader is broken
    Preconditions.checkNotNull(appClassURL, "Cannot find class %s from the classloader", applicationClz);
    String appConfig = "";
    Type configType = Artifacts.getConfigType(applicationClz);
    RemoteApplicationManager manager;
    try {
        if (configObject != null) {
            appConfig = GSON.toJson(configObject);
        } else {
            configObject = (Config) TypeToken.of(configType).getRawType().newInstance();
        }
        // Create and deploy application jar
        File appJarFile = new File(tmpFolder, String.format("%s-%s.jar", applicationClz.getSimpleName(), VERSION));
        try {
            if ("jar".equals(appClassURL.getProtocol())) {
                copyJarFile(appClassURL, appJarFile);
            } else {
                Manifest manifest = new Manifest();
                manifest.getMainAttributes().put(ManifestFields.BUNDLE_VERSION, VERSION);
                Location appJar = AppJarHelper.createDeploymentJar(locationFactory, applicationClz, manifest, CLASS_ACCEPTOR, bundleEmbeddedJars);
                try (InputStream input = appJar.getInputStream()) {
                    Files.copy(input, appJarFile.toPath());
                }
            }
            // Extracts application id from the application class
            Application application = applicationClz.newInstance();
            MockAppConfigurer configurer = new MockAppConfigurer(application);
            application.configure(configurer, new DefaultApplicationContext<>(configObject));
            String applicationId = configurer.getName();
            // Upload artifact for application
            ContentProvider<InputStream> artifactStream = locationFactory.create(appJarFile.toURI())::getInputStream;
            artifactClient.add(namespace, applicationClz.getSimpleName(), artifactStream, VERSION);
            List<ArtifactSummary> deployedArtifacts = artifactClient.list(namespace);
            assert deployedArtifacts.size() > 0;
            // Deploy application
            ArtifactSummary summary = new ArtifactSummary(applicationClz.getSimpleName(), VERSION);
            AppRequest<?> request = new AppRequest<>(summary, appConfig);
            ApplicationId id = namespace.app(applicationId);
            applicationClient.deploy(id, request);
            manager = new RemoteApplicationManager(namespace.app(applicationId), clientConfig, restClient);
        } finally {
            if (!appJarFile.delete()) {
                LOG.warn("Failed to delete temporary app jar {}", appJarFile.getAbsolutePath());
            }
        }
        return manager;
    } catch (Exception e) {
        throw Throwables.propagate(e);
    }
}

Example 4 with Application

use of io.cdap.cdap.api.app.Application in project cdap by caskdata.

the class UnitTestManager method deployApplication.

@Override
public ApplicationManager deployApplication(NamespaceId namespace, Class<? extends Application> applicationClz, @Nullable Config configObject, File... bundleEmbeddedJars) throws AccessException {
    Preconditions.checkNotNull(applicationClz, "Application class cannot be null.");
    Type configType = Artifacts.getConfigType(applicationClz);
    try {
        ArtifactId artifactId = new ArtifactId(namespace.getNamespace(), applicationClz.getSimpleName(), "1.0-SNAPSHOT");
        addAppArtifact(artifactId, applicationClz, new Manifest(), bundleEmbeddedJars);
        if (configObject == null) {
            configObject = (Config) TypeToken.of(configType).getRawType().newInstance();
        }
        Application app = applicationClz.newInstance();
        MockAppConfigurer configurer = new MockAppConfigurer(app);
        app.configure(configurer, new DefaultApplicationContext<>(configObject));
        ApplicationId applicationId = new ApplicationId(namespace.getNamespace(), configurer.getName());
        ArtifactSummary artifactSummary = new ArtifactSummary(artifactId.getArtifact(), artifactId.getVersion());
        appFabricClient.deployApplication(Id.Application.fromEntityId(applicationId), new AppRequest(artifactSummary, configObject));
        return appManagerFactory.create(applicationId);
    } catch (AccessException e) {
        throw e;
    } catch (Exception e) {
        throw Throwables.propagate(e);
    }
}

Example 5 with Application

use of io.cdap.cdap.api.app.Application in project cdap by caskdata.

the class ApplicationLifecycleService method getLatestAppArtifactForUpgrade.

/**
 * Finds latest application artifact for given application and current artifact for upgrading application.
 * If no artifact found then returns current artifact as the candidate.
 *
 * @param appId application Id to find latest app artifact for.
 * @param currentArtifactId current artifact used by application.
 * @param allowedArtifactScopes artifact scopes to search in for finding candidate artifacts.
 * @param allowSnapshot whether to consider snapshot version of artifacts or not for upgrade.
 * @return {@link ArtifactSummary} for the artifact to be used for upgrade purpose.
 * @throws NotFoundException if there is no artifact available for given artifact.
 * @throws Exception if there was an exception during finding candidate artifact.
 */
private ArtifactSummary getLatestAppArtifactForUpgrade(ApplicationId appId, ArtifactId currentArtifactId, Set<ArtifactScope> allowedArtifactScopes, boolean allowSnapshot) throws Exception {
    List<ArtifactSummary> availableArtifacts = new ArrayList<>();
    // At the least, current artifact should be in the set of available artifacts.
    availableArtifacts.add(ArtifactSummary.from(currentArtifactId));
    // Find candidate artifacts from all scopes we need to consider.
    for (ArtifactScope scope : allowedArtifactScopes) {
        NamespaceId artifactNamespaceToConsider = ArtifactScope.SYSTEM.equals(scope) ? NamespaceId.SYSTEM : appId.getParent();
        List<ArtifactSummary> artifacts;
        try {
            artifacts = artifactRepository.getArtifactSummaries(artifactNamespaceToConsider, currentArtifactId.getName(), Integer.MAX_VALUE, ArtifactSortOrder.ASC);
        } catch (ArtifactNotFoundException e) {
            // This can happen if we are looking for candidate artifact in multiple namespace.
            continue;
        }
        for (ArtifactSummary artifactSummary : artifacts) {
            ArtifactVersion artifactVersion = new ArtifactVersion(artifactSummary.getVersion());
            // Consider if it is a non-snapshot version artifact or it is a snapshot version than allowSnapshot is true.
            if ((artifactVersion.isSnapshot() && allowSnapshot) || !artifactVersion.isSnapshot()) {
                availableArtifacts.add(artifactSummary);
            }
        }
    }
    // Find the artifact with latest version.
    Optional<ArtifactSummary> newArtifactCandidate = availableArtifacts.stream().max(Comparator.comparing(artifactSummary -> new ArtifactVersion(artifactSummary.getVersion())));
    io.cdap.cdap.proto.id.ArtifactId currentArtifact = new io.cdap.cdap.proto.id.ArtifactId(appId.getNamespace(), currentArtifactId.getName(), currentArtifactId.getVersion().getVersion());
    return newArtifactCandidate.orElseThrow(() -> new ArtifactNotFoundException(currentArtifact));
}