Examples of org.apache.ambari.server.controller.spi.Predicate

Package org.apache.ambari.server.controller.spi

Examples of org.apache.ambari.server.controller.spi.Predicate

org.apache.ambari.server.controller.spi.Predicate
The predicate is used to filter the resources returned from the cluster controller. The predicate can examine a resource object and determine whether or not it should be included in the returned results.


    AbstractResourceProviderTest.TestObserver observer = new AbstractResourceProviderTest.TestObserver();


    ((ObservableResourceProvider)provider).addObserver(observer);


    Predicate predicate = new PredicateBuilder().property(HostResourceProvider.HOST_NAME_PROPERTY_ID).equals("Host100").
        toPredicate();
    provider.deleteResources(predicate);




    ResourceProviderEvent lastEvent = observer.getLastEvent();

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    propertyIds.add(HostComponentResourceProvider.HOST_COMPONENT_STATE_PROPERTY_ID);
    propertyIds.add(HostComponentResourceProvider.HOST_COMPONENT_STACK_ID_PROPERTY_ID);
    propertyIds.add(HostComponentResourceProvider.HOST_COMPONENT_DESIRED_STATE_PROPERTY_ID);
    propertyIds.add(HostComponentResourceProvider.HOST_COMPONENT_DESIRED_STACK_ID_PROPERTY_ID);


    Predicate predicate = new PredicateBuilder().property(
        HostComponentResourceProvider.HOST_COMPONENT_CLUSTER_NAME_PROPERTY_ID).equals("Cluster100").toPredicate();
    Request request = PropertyHelper.getReadRequest(propertyIds);
    Set<Resource> resources = provider.getResources(request, predicate);


    Assert.assertEquals(3, resources.size());

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    // create the request
    Request request = PropertyHelper.getUpdateRequest(properties, mapRequestProps);


    // update the cluster named Cluster102
    Predicate predicate = new PredicateBuilder().property(
        HostComponentResourceProvider.HOST_COMPONENT_CLUSTER_NAME_PROPERTY_ID).equals("Cluster102").toPredicate();
    provider.updateResources(request, predicate);


    // verify
    verify(managementController, response);

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    AbstractResourceProviderTest.TestObserver observer = new AbstractResourceProviderTest.TestObserver();


    ((ObservableResourceProvider)provider).addObserver(observer);


    Predicate predicate = new PredicateBuilder().
        property(HostComponentResourceProvider.HOST_COMPONENT_COMPONENT_NAME_PROPERTY_ID).equals("Component100").and().
        property(HostComponentResourceProvider.HOST_COMPONENT_HOST_NAME_PROPERTY_ID).equals("Host100").toPredicate();
    provider.deleteResources(predicate);

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    propertyIds.add(ComponentResourceProvider.COMPONENT_CLUSTER_NAME_PROPERTY_ID);
    propertyIds.add(ComponentResourceProvider.COMPONENT_COMPONENT_NAME_PROPERTY_ID);
    propertyIds.add(ComponentResourceProvider.COMPONENT_CATEGORY_PROPERTY_ID);


    Predicate predicate = new PredicateBuilder().property(ComponentResourceProvider.COMPONENT_CLUSTER_NAME_PROPERTY_ID).
        equals("Cluster100").toPredicate();
    Request request = PropertyHelper.getReadRequest(propertyIds);
    Set<Resource> resources = provider.getResources(request, predicate);


    Assert.assertEquals(3, resources.size());

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    // create the request
    Request request = PropertyHelper.getUpdateRequest(properties, mapRequestProps);


    // update the cluster named Cluster102
    Predicate predicate = new PredicateBuilder().property(ComponentResourceProvider.COMPONENT_CLUSTER_NAME_PROPERTY_ID).
        equals("Cluster100").toPredicate();
    provider.updateResources(request, predicate);


    // verify
    verify(managementController, clusters, cluster, ambariMetaInfo, service,

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    AbstractResourceProviderTest.TestObserver observer = new AbstractResourceProviderTest.TestObserver();


    ((ObservableResourceProvider)provider).addObserver(observer);


    Predicate  predicate = new PredicateBuilder().property(
        ComponentResourceProvider.COMPONENT_COMPONENT_NAME_PROPERTY_ID).equals("Component100").toPredicate();
    try {
      provider.deleteResources(predicate);
      Assert.fail("Expected exception.");
    } catch (Exception e) {

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    DependencyInfo dependencyInfo = new DependencyInfo();
    dependencyInfo.setName("service_name/comp_name");
    dependencyInfo.setScope("cluster");


    Predicate namePredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.COMPONENT_NAME_ID, "comp_name");
    Predicate depServicePredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.DEPENDENT_SERVICE_NAME_ID, "dep_service_name");
    Predicate depCompPredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.DEPENDENT_COMPONENT_NAME_ID, "dep_comp_name");
    Predicate stackNamePredicate = new EqualsPredicate<String>
        (StackDependencyResourceProvider.STACK_NAME_ID, "stack_name");
    Predicate stackVersionPredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.STACK_VERSION_ID, "stack_version");


    Predicate andPredicate = new AndPredicate(namePredicate, depServicePredicate,
        depCompPredicate, stackNamePredicate, stackVersionPredicate);


    //mock expectations
    expect(metaInfo.getComponentDependency("stack_name", "stack_version", "dep_service_name",
        "dep_comp_name", "comp_name")).andReturn(dependencyInfo);

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    DependencyInfo dependencyInfo = new DependencyInfo();
    dependencyInfo.setName("service_name/comp_name");
    dependencyInfo.setScope("cluster");


    Predicate namePredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.COMPONENT_NAME_ID, "comp_name");
    Predicate name2Predicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.COMPONENT_NAME_ID, "comp_name2");
    Predicate depServicePredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.DEPENDENT_SERVICE_NAME_ID, "dep_service_name");
    Predicate depCompPredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.DEPENDENT_COMPONENT_NAME_ID, "dep_comp_name");
    Predicate stackNamePredicate = new EqualsPredicate<String>
        (StackDependencyResourceProvider.STACK_NAME_ID, "stack_name");
    Predicate stackVersionPredicate = new EqualsPredicate<String>(
        StackDependencyResourceProvider.STACK_VERSION_ID, "stack_version");


    Predicate andPredicate1 = new AndPredicate(namePredicate, depServicePredicate,
        depCompPredicate, stackNamePredicate, stackVersionPredicate);
    Predicate andPredicate2 = new AndPredicate(name2Predicate, depServicePredicate,
        depCompPredicate, stackNamePredicate, stackVersionPredicate);
    Predicate orPredicate = new OrPredicate(andPredicate1, andPredicate2);


    //mock expectations
    expect(metaInfo.getComponentDependency("stack_name", "stack_version", "dep_service_name",
        "dep_comp_name", "comp_name")).andReturn(dependencyInfo);
    expect(metaInfo.getComponentDependency("stack_name", "stack_version", "dep_service_name",

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      String name = (String) resource.getPropertyValue(ClusterResourceProvider.CLUSTER_NAME_PROPERTY_ID);
      Assert.assertEquals(name, "Cluster" + id);
    }


    // get cluster named Cluster102
    Predicate predicate =
        new PredicateBuilder().property(ClusterResourceProvider.CLUSTER_NAME_PROPERTY_ID).equals("Cluster102").
            toPredicate();
    resources = provider.getResources(request, predicate);


    Assert.assertEquals(1, resources.size());

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Related Classes of org.apache.ambari.server.controller.spi.Predicate

org.apache.ambari.msi.ClusterProviderTest

org.apache.ambari.msi.ComponentProviderTest

org.apache.ambari.msi.ConfigurationProviderTest

org.apache.ambari.msi.HostComponentProviderTest

org.apache.ambari.msi.HostProviderTest

org.apache.ambari.msi.ServiceProviderTest

org.apache.ambari.server.api.handlers.BaseManagementHandler

org.apache.ambari.server.api.handlers.DeleteHandlerTest

org.apache.ambari.server.api.handlers.ReadHandler

org.apache.ambari.server.api.handlers.UpdateHandlerTest

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