de.uni_leipzig.wifa.iwi.mr3.service.impl
Class ModelRepositoryServiceImpl

java.lang.Object
  de.uni_leipzig.wifa.iwi.mr3.service.impl.ModelRepositoryServiceImpl

All Implemented Interfaces:

ModelRepositorySkeletonInterface, org.apache.axis2.engine.ServiceLifeCycle, org.apache.axis2.service.Lifecycle

public class ModelRepositoryServiceImpl
extends Object
implements ModelRepositorySkeletonInterface, org.apache.axis2.engine.ServiceLifeCycle, org.apache.axis2.service.Lifecycle

Service implementation for model repository.

This class asks the global configuration (for axis2: axis2.xml) for a configuration parameter "ModelRepository.DatabasePath". Use this parameter to configure the persistence folder. If there is no such folder, we use a static one.

Constructor Summary

ModelRepositoryServiceImpl()

Method Summary

Comparison	compare(String leftUri, String rightUri) Compare two models.
void	delete(String nsUri, boolean cascading) Delete model.
void	destroy(org.apache.axis2.context.ServiceContext context) On destroy the service context.
Match[]	find(String[] classifiers, String expression, boolean isRegEx, boolean isCaseSensitive) Find model by conditions. y
String[]	getInstanceModels(String metaNsUri) Find all models.
void	init(org.apache.axis2.context.ServiceContext context) Init of service context.
org.apache.axiom.om.OMElement	load(String nsUri) Load a model by given namespace URI.
void	save(org.apache.axiom.om.OMElement model, String uri) Store model into model repository.
void	shutDown(org.apache.axis2.context.ConfigurationContext configctx, org.apache.axis2.description.AxisService service) Service live cycle method.
void	startUp(org.apache.axis2.context.ConfigurationContext configctx, org.apache.axis2.description.AxisService service) Service live cycle method.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelRepositoryServiceImpl

public ModelRepositoryServiceImpl()

Method Detail

startUp

public void startUp(org.apache.axis2.context.ConfigurationContext configctx,
                    org.apache.axis2.description.AxisService service)

Service live cycle method.

This (callback) method is called by axis2 when the engine starts, before it is initially used. Therefore the first request need not wait until initialization has finished.

Specified by:

startUp in interface org.apache.axis2.engine.ServiceLifeCycle

Parameters:

configctx - Service context

service - Service

See Also:

ServiceLifeCycle.startUp(org.apache.axis2.context.ConfigurationContext, org.apache.axis2.description.AxisService)

shutDown

public void shutDown(org.apache.axis2.context.ConfigurationContext configctx,
                     org.apache.axis2.description.AxisService service)

Service live cycle method.

Specified by:

shutDown in interface org.apache.axis2.engine.ServiceLifeCycle

Parameters:

configctx - Service context

service - Service

See Also:

ServiceLifeCycle.shutDown(org.apache.axis2.context.ConfigurationContext, org.apache.axis2.description.AxisService)

init

public void init(org.apache.axis2.context.ServiceContext context)
          throws org.apache.axis2.AxisFault

Init of service context.

Each service class may more then once instantiated for some reasons. Each instance get it's own service context. At time the instance is constructed this method get called. We keep the service context in instance variable for further usage.

Specified by:

init in interface org.apache.axis2.service.Lifecycle

Parameters:

context - Service context

Throws:

org.apache.axis2.AxisFault - Never happens

See Also:

Lifecycle.init(org.apache.axis2.context.ServiceContext)

destroy

public void destroy(org.apache.axis2.context.ServiceContext context)

On destroy the service context.

Specified by:

destroy in interface org.apache.axis2.service.Lifecycle

Parameters:

context - Service context

See Also:

Lifecycle.destroy(org.apache.axis2.context.ServiceContext)

save

public void save(org.apache.axiom.om.OMElement model,
                 String uri)
          throws MRException

Store model into model repository.

If model exists, the parameter override must be true to override the model, otherwise storing fails.

Specified by:

save in interface ModelRepositorySkeletonInterface

Parameters:

model - Model to store into model repository

uri - uri of the model resource, used as name to tag models without nsURI

Throws:

MRException - Service level exception

See Also:

ModelRepositorySkeletonInterface.save(org.apache.axiom.om.OMElement, java.lang.String)

load

public org.apache.axiom.om.OMElement load(String nsUri)
                                   throws MRException

Load a model by given namespace URI.

Specified by:

load in interface ModelRepositorySkeletonInterface

Parameters:

nsUri - Namespace URI

Returns:

Model with the given namespace URI or null if no such model exists in repository

Throws:

MRException - Service level exception

See Also:

ModelRepositorySkeletonInterface.load(java.lang.String)

delete

public void delete(String nsUri,
                   boolean cascading)
            throws MRException

Delete model.

Specified by:

delete in interface ModelRepositorySkeletonInterface

Parameters:

nsUri - Namespace URI of model to delete

cascading - true, if all instance models should also be deleted

Throws:

MRException - Service level exception

See Also:

ModelRepositorySkeletonInterface.delete(java.lang.String, boolean)

getInstanceModels

public String[] getInstanceModels(String metaNsUri)

Find all models.

Lookup the nsURIs of all model instances in repository beyound the model with the given nsURI. If the meta nsURI is unkonown (no such model in repository) or no model is found, the result is empty, not null.

If the argument is null, the method looks up all models explicitly without an assigned meta model. Usually these are meta models, forming the maximum model level in it's context.

Specified by:

getInstanceModels in interface ModelRepositorySkeletonInterface

Parameters:

metaNsUri - Namespace URI of parent model.

Returns:

nsURIs of found models

See Also:

ModelRepositorySkeletonInterface.getInstanceModels(java.lang.String)

find

public Match[] find(String[] classifiers,
                    String expression,
                    boolean isRegEx,
                    boolean isCaseSensitive)

Find model by conditions. y

Specified by:

find in interface ModelRepositorySkeletonInterface

Parameters:

classifiers - the classifiers to search in

expression - the string expression to search for

isRegEx - RegExp search

isCaseSensitive - Case sensitive search

Returns:

Array of found models, matching the given conditions

See Also:

de.uni_leipzig.wifa.iwi.mr3.service.ModelRepositorySkeletonInterface#find(java.lang.String, java.lang.String[], boolean, boolean)

compare

public Comparison compare(String leftUri,
                          String rightUri)
                   throws MRException

Compare two models.

Specified by:

compare in interface ModelRepositorySkeletonInterface

Parameters:

leftUri - Identificator of left model

rightUri - Identificator of right model

Returns:

Commonalities s and differences of the two models

Throws:

MRException - Service level exception

See Also:

de.uni_leipzig.wifa.iwi.mr3.service.ModelRepositorySkeletonInterface#compare(org.apache.axis2.databinding.types.URI, org.apache.axis2.databinding.types.URI)