org.apache.ambari.server.api.services.stackadvisor.commands

Class StackAdvisorCommand<T extends StackAdvisorResponse>

java.lang.Object

org.apache.ambari.server.api.services.BaseService

org.apache.ambari.server.api.services.stackadvisor.commands.StackAdvisorCommand<T>

Direct Known Subclasses:

ComponentLayoutRecommendationCommand, ComponentLayoutValidationCommand, ConfigurationDependenciesRecommendationCommand, ConfigurationRecommendationCommand, ConfigurationValidationCommand

public abstract class StackAdvisorCommand<T extends StackAdvisorResponse>
extends BaseService

Parent for all commands.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StackAdvisorCommand.StackAdvisorData Simple holder for 'hosts.json' and 'services.json' data.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.codehaus.jackson.map.ObjectMapper	mapper

Fields inherited from class org.apache.ambari.server.api.services.BaseService

DATA_TYPE_INT, DATA_TYPE_STRING, DEFAULT_FROM, DEFAULT_PAGE_SIZE, FIELDS_SEPARATOR, MEDIA_TYPE_TEXT_CSV_TYPE, MSG_CLUSTER_NOT_FOUND, MSG_CLUSTER_OR_HOST_NOT_FOUND, MSG_INVALID_ARGUMENTS, MSG_INVALID_REQUEST, MSG_NOT_AUTHENTICATED, MSG_PERMISSION_DENIED, MSG_REQUEST_ACCEPTED, MSG_RESOURCE_ALREADY_EXISTS, MSG_RESOURCE_NOT_FOUND, MSG_SERVER_ERROR, MSG_SUCCESSFUL_OPERATION, MSG_VIEW_NOT_FOUND, PARAM_TYPE_BODY, PARAM_TYPE_QUERY, QUERY_FIELDS, QUERY_FILTER_DESCRIPTION, QUERY_FROM, QUERY_FROM_DESCRIPTION, QUERY_FROM_VALUES, QUERY_PAGE_SIZE, QUERY_PAGE_SIZE_DESCRIPTION, QUERY_PREDICATE, QUERY_PREDICATE_DESCRIPTION, QUERY_SORT, QUERY_SORT_DESCRIPTION, QUERY_TO, QUERY_TO_DESCRIPTION, QUERY_TO_TYPE, QUERY_TO_VALUES, requestAuditLogger, RESPONSE_CONTAINER_LIST

Constructor Summary

Constructors

Constructor and Description
StackAdvisorCommand(File recommendationsDir, String recommendationsArtifactsLifetime, ServiceInfo.ServiceAdvisorType serviceAdvisorType, int requestId, StackAdvisorRunner saRunner, AmbariMetaInfo metaInfo, AmbariServerConfigurationHandler ambariServerConfigurationHandler)
StackAdvisorCommand(File recommendationsDir, String recommendationsArtifactsLifetime, ServiceInfo.ServiceAdvisorType serviceAdvisorType, int requestId, StackAdvisorRunner saRunner, AmbariMetaInfo metaInfo, AmbariServerConfigurationHandler ambariServerConfigurationHandler, Map<String,org.codehaus.jackson.JsonNode> hostInfoCache)

Method Summary

Modifier and Type	Method and Description
protected StackAdvisorCommand.StackAdvisorData	adjust(StackAdvisorCommand.StackAdvisorData data, StackAdvisorRequest request)
protected abstract StackAdvisorCommandType	getCommandType()
protected abstract String	getResultFileName() Name with the result JSON, e.g.
T	invoke(StackAdvisorRequest request, ServiceInfo.ServiceAdvisorType serviceAdvisorType)
protected void	populateAmbariServerInfo(org.codehaus.jackson.node.ObjectNode root)
protected void	populateStackHierarchy(org.codehaus.jackson.node.ObjectNode root)
protected abstract T	updateResponse(StackAdvisorRequest request, T response)
protected abstract void	validate(StackAdvisorRequest request)

Methods inherited from class org.apache.ambari.server.api.services.BaseService

createResource, getBodyParser, getResultSerializer, getResultSerializer, handleRequest, handleRequest, init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mapper

protected org.codehaus.jackson.map.ObjectMapper mapper

Constructor Detail

StackAdvisorCommand

public StackAdvisorCommand(File recommendationsDir,
                           String recommendationsArtifactsLifetime,
                           ServiceInfo.ServiceAdvisorType serviceAdvisorType,
                           int requestId,
                           StackAdvisorRunner saRunner,
                           AmbariMetaInfo metaInfo,
                           AmbariServerConfigurationHandler ambariServerConfigurationHandler,
                           Map<String,org.codehaus.jackson.JsonNode> hostInfoCache)

StackAdvisorCommand

public StackAdvisorCommand(File recommendationsDir,
                           String recommendationsArtifactsLifetime,
                           ServiceInfo.ServiceAdvisorType serviceAdvisorType,
                           int requestId,
                           StackAdvisorRunner saRunner,
                           AmbariMetaInfo metaInfo,
                           AmbariServerConfigurationHandler ambariServerConfigurationHandler)

Method Detail

getCommandType

protected abstract StackAdvisorCommandType getCommandType()

getResultFileName

protected abstract String getResultFileName()

Name with the result JSON, e.g. "component-layout.json" or "validations.json" .

Returns:

the file name

validate

protected abstract void validate(StackAdvisorRequest request)
                          throws StackAdvisorException

Throws:

StackAdvisorException

adjust

protected StackAdvisorCommand.StackAdvisorData adjust(StackAdvisorCommand.StackAdvisorData data,
                                                      StackAdvisorRequest request)

populateAmbariServerInfo

protected void populateAmbariServerInfo(org.codehaus.jackson.node.ObjectNode root)

populateStackHierarchy

protected void populateStackHierarchy(org.codehaus.jackson.node.ObjectNode root)

invoke

public T invoke(StackAdvisorRequest request,
                ServiceInfo.ServiceAdvisorType serviceAdvisorType)
         throws StackAdvisorException

Throws:

StackAdvisorException

updateResponse

protected abstract T updateResponse(StackAdvisorRequest request,
                                    T response)