280 lines
12 KiB
Java
280 lines
12 KiB
Java
package org.gcube.smartgears.handler.resourceregistry.resourcemanager;
|
|
|
|
import java.net.URI;
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.UUID;
|
|
|
|
import javax.servlet.ServletRegistration;
|
|
|
|
import org.gcube.informationsystem.model.impl.properties.HeaderImpl;
|
|
import org.gcube.informationsystem.model.impl.properties.PropagationConstraintImpl;
|
|
import org.gcube.informationsystem.model.reference.properties.Header;
|
|
import org.gcube.informationsystem.model.reference.properties.PropagationConstraint;
|
|
import org.gcube.informationsystem.model.reference.properties.PropagationConstraint.AddConstraint;
|
|
import org.gcube.informationsystem.model.reference.properties.PropagationConstraint.RemoveConstraint;
|
|
import org.gcube.informationsystem.resourceregistry.api.contexts.ContextCache;
|
|
import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContextException;
|
|
import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
|
|
import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
|
|
import org.gcube.informationsystem.resourceregistry.api.exceptions.contexts.ContextNotFoundException;
|
|
import org.gcube.informationsystem.resourceregistry.api.exceptions.entities.resource.ResourceNotFoundException;
|
|
import org.gcube.informationsystem.resourceregistry.client.ResourceRegistryClient;
|
|
import org.gcube.informationsystem.resourceregistry.client.ResourceRegistryClientFactory;
|
|
import org.gcube.informationsystem.resourceregistry.publisher.ResourceRegistryPublisher;
|
|
import org.gcube.informationsystem.resourceregistry.publisher.ResourceRegistryPublisherFactory;
|
|
import org.gcube.resourcemanagement.model.impl.entities.facets.AccessPointFacetImpl;
|
|
import org.gcube.resourcemanagement.model.impl.entities.facets.SoftwareFacetImpl;
|
|
import org.gcube.resourcemanagement.model.impl.entities.facets.StateFacetImpl;
|
|
import org.gcube.resourcemanagement.model.impl.entities.resources.EServiceImpl;
|
|
import org.gcube.resourcemanagement.model.impl.properties.ValueSchemaImpl;
|
|
import org.gcube.resourcemanagement.model.impl.relations.consistsof.IsIdentifiedByImpl;
|
|
import org.gcube.resourcemanagement.model.impl.relations.isrelatedto.ActivatesImpl;
|
|
import org.gcube.resourcemanagement.model.reference.entities.facets.AccessPointFacet;
|
|
import org.gcube.resourcemanagement.model.reference.entities.facets.SoftwareFacet;
|
|
import org.gcube.resourcemanagement.model.reference.entities.facets.StateFacet;
|
|
import org.gcube.resourcemanagement.model.reference.entities.resources.EService;
|
|
import org.gcube.resourcemanagement.model.reference.entities.resources.HostingNode;
|
|
import org.gcube.resourcemanagement.model.reference.properties.ValueSchema;
|
|
import org.gcube.resourcemanagement.model.reference.relations.consistsof.IsIdentifiedBy;
|
|
import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.Activates;
|
|
import org.gcube.smartgears.configuration.application.ApplicationConfiguration;
|
|
import org.gcube.smartgears.configuration.container.ContainerConfiguration;
|
|
import org.gcube.smartgears.context.application.ApplicationContext;
|
|
import org.gcube.smartgears.handler.resourceregistry.Constants;
|
|
import org.gcube.smartgears.handler.resourceregistry.ContextUtility;
|
|
import org.slf4j.Logger;
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
/**
|
|
* @author Luca Frosini (ISTI-CNR)
|
|
*/
|
|
public class EServiceManager {
|
|
|
|
private static Logger logger = LoggerFactory.getLogger(HostingNodeManager.class);
|
|
|
|
private static List<String> servletExcludes = Arrays.asList("default", "jsp");
|
|
|
|
private ResourceRegistryPublisher resourceRegistryPublisher;
|
|
|
|
// private Activates<HostingNode, EService> activates;
|
|
private EService eService;
|
|
private StateFacet stateFacet;
|
|
|
|
private ApplicationContext applicationContext;
|
|
|
|
public EServiceManager(ApplicationContext applicationContext) {
|
|
this.applicationContext = applicationContext;
|
|
this.resourceRegistryPublisher = ResourceRegistryPublisherFactory.create();
|
|
}
|
|
|
|
public EService getEService() {
|
|
return eService;
|
|
}
|
|
|
|
public void addToContext() throws ResourceNotFoundException, ContextNotFoundException, ResourceRegistryException {
|
|
HostingNode hostingNode = applicationContext.container().properties()
|
|
.lookup(Constants.HOSTING_NODE_MANAGER_PROPERTY).value(HostingNodeManager.class).getHostingNode();
|
|
try {
|
|
resourceRegistryPublisher.addResourceToCurrentContext(hostingNode, false);
|
|
logger.info("{} successfully added to current context ({})", eService, ContextUtility.getCurrentContextName());
|
|
} catch (Exception e) {
|
|
logger.error("Unable to add {} to current context ({})", eService, ContextUtility.getCurrentContextName(), e);
|
|
}
|
|
}
|
|
|
|
public void removeFromContext()
|
|
throws ResourceNotFoundException, ContextNotFoundException, ResourceRegistryException {
|
|
try {
|
|
resourceRegistryPublisher.removeResourceFromCurrentContext(eService, false);
|
|
logger.info("{} successfully removed from current context ({})", eService,
|
|
ContextUtility.getCurrentContextName());
|
|
} catch (Exception e) {
|
|
logger.error("Unable to remove {} from current context ({})", eService,
|
|
ContextUtility.getCurrentContextName(), e);
|
|
}
|
|
}
|
|
|
|
public void removeFromContext(UUID contextUUID)
|
|
throws ResourceNotFoundException, ContextNotFoundException, ResourceRegistryException {
|
|
String contextFullName = ContextCache.getInstance().getContextFullNameByUUID(contextUUID);
|
|
try {
|
|
resourceRegistryPublisher.removeResourceFromContext(eService, contextUUID, false);
|
|
logger.info("{} successfully removed from context ({})", eService, contextFullName);
|
|
} catch (Exception e) {
|
|
logger.error("Unable to remove {} from current context ({})", eService, contextFullName, e);
|
|
}
|
|
}
|
|
|
|
private String getBaseAddress() {
|
|
ApplicationConfiguration configuration = applicationContext.configuration();
|
|
ContainerConfiguration container = applicationContext.container().configuration();
|
|
String baseAddress;
|
|
if (configuration.proxied()) {
|
|
String protocol = configuration.proxyAddress().protocol();
|
|
String port = configuration.proxyAddress().port() != null ? ":" + configuration.proxyAddress().port() : "";
|
|
|
|
baseAddress = String.format("%s://%s%s%s", protocol, configuration.proxyAddress().hostname(), port,
|
|
applicationContext.application().getContextPath());
|
|
} else {
|
|
String protocol = container.protocol();
|
|
int port = container.port();
|
|
|
|
baseAddress = String.format("%s://%s:%d%s", protocol, container.hostname(), port,
|
|
applicationContext.application().getContextPath());
|
|
}
|
|
return baseAddress;
|
|
}
|
|
|
|
public String getState() {
|
|
return applicationContext.lifecycle().state().remoteForm().toLowerCase();
|
|
}
|
|
|
|
private EService instantiateEService() {
|
|
logger.info("Creating {} for {}", EService.NAME, applicationContext.name());
|
|
|
|
ApplicationConfiguration applicationConfiguration = applicationContext.configuration();
|
|
String id = applicationContext.id();
|
|
|
|
UUID uuid = UUID.fromString(id);
|
|
EService eService = new EServiceImpl();
|
|
Header header = new HeaderImpl(uuid);
|
|
eService.setHeader(header);
|
|
|
|
SoftwareFacet softwareFacet = new SoftwareFacetImpl();
|
|
softwareFacet.setDescription(applicationConfiguration.description());
|
|
softwareFacet.setGroup(applicationConfiguration.serviceClass());
|
|
softwareFacet.setName(applicationConfiguration.name());
|
|
softwareFacet.setVersion(applicationConfiguration.version());
|
|
|
|
IsIdentifiedBy<EService, SoftwareFacet> isIdentifiedBy = new IsIdentifiedByImpl<EService, SoftwareFacet>(
|
|
eService, softwareFacet);
|
|
eService.addFacet(isIdentifiedBy);
|
|
|
|
String baseAddress = getBaseAddress();
|
|
for (ServletRegistration servlet : applicationContext.application().getServletRegistrations().values()) {
|
|
if (!servletExcludes.contains(servlet.getName())) {
|
|
for (String mapping : servlet.getMappings()) {
|
|
|
|
String address = baseAddress
|
|
+ (mapping.endsWith("*") ? mapping.substring(0, mapping.length() - 2) : mapping);
|
|
|
|
AccessPointFacet accessPointFacet = new AccessPointFacetImpl();
|
|
accessPointFacet.setEntryName(servlet.getName());
|
|
accessPointFacet.setEndpoint(URI.create(address));
|
|
ValueSchema valueSchema = new ValueSchemaImpl();
|
|
valueSchema.setValue("gcube-token");
|
|
|
|
accessPointFacet.setAuthorization(valueSchema);
|
|
|
|
eService.addFacet(accessPointFacet);
|
|
}
|
|
}
|
|
}
|
|
|
|
stateFacet = new StateFacetImpl();
|
|
String state = getState();
|
|
stateFacet.setValue(state);
|
|
eService.addFacet(stateFacet);
|
|
|
|
return eService;
|
|
}
|
|
|
|
public EService createEService() throws ResourceRegistryException {
|
|
ResourceRegistryClient resourceRegistryClient = ResourceRegistryClientFactory.create();
|
|
UUID eServiceUUID = UUID.fromString(applicationContext.id());
|
|
try {
|
|
ResourceRegistryClientFactory.includeContextsInInstanceHeader(true);
|
|
eService = resourceRegistryClient.getInstance(EService.class, eServiceUUID);
|
|
stateFacet = eService.getFacets(StateFacet.class).get(0);
|
|
if (stateFacet == null) {
|
|
stateFacet = new StateFacetImpl();
|
|
String state = getState();
|
|
stateFacet.setValue(state);
|
|
eService.addFacet(stateFacet);
|
|
resourceRegistryPublisher.update(eService);
|
|
} else {
|
|
updateServiceStateFacet();
|
|
}
|
|
} catch (NotFoundException e) {
|
|
eService = instantiateEService();
|
|
createActivatesRelation(eService);
|
|
stateFacet = eService.getFacets(StateFacet.class).get(0);
|
|
} catch (AvailableInAnotherContextException e) {
|
|
addToContext();
|
|
try {
|
|
eService = resourceRegistryClient.getInstance(EService.class, eServiceUUID);
|
|
} catch (AvailableInAnotherContextException ex) {
|
|
resourceRegistryPublisher.addResourceToCurrentContext(eService, false);
|
|
// addToContext() is executed on HostingNode.
|
|
// If the EService is still not available we need to create activates
|
|
// relation because does not exists otherwise the EService should
|
|
// already be in the context due to propagation constraint.
|
|
createActivatesRelation(eService);
|
|
}
|
|
stateFacet = eService.getFacets(StateFacet.class).get(0);
|
|
if (stateFacet == null) {
|
|
stateFacet = new StateFacetImpl();
|
|
String state = getState();
|
|
stateFacet.setValue(state);
|
|
eService.addFacet(stateFacet);
|
|
resourceRegistryPublisher.update(eService);
|
|
} else {
|
|
updateServiceStateFacet();
|
|
}
|
|
} catch (ResourceRegistryException e) {
|
|
throw e;
|
|
}
|
|
return eService;
|
|
}
|
|
|
|
public void updateServiceStateFacet() throws ResourceRegistryException {
|
|
String state = getState();
|
|
stateFacet.setValue(state);
|
|
stateFacet = resourceRegistryPublisher.updateFacet(stateFacet);
|
|
}
|
|
|
|
private Activates<HostingNode, EService> createActivatesRelation(EService eService)
|
|
throws ResourceRegistryException {
|
|
|
|
HostingNode hostingNode = applicationContext.container().properties()
|
|
.lookup(Constants.HOSTING_NODE_MANAGER_PROPERTY).value(HostingNodeManager.class).getHostingNode();
|
|
|
|
PropagationConstraint propagationConstraint = new PropagationConstraintImpl();
|
|
propagationConstraint.setRemoveConstraint(RemoveConstraint.cascade);
|
|
propagationConstraint.setAddConstraint(AddConstraint.propagate);
|
|
Activates<HostingNode, EService> activates = new ActivatesImpl<>(hostingNode, eService, propagationConstraint);
|
|
|
|
try {
|
|
activates = resourceRegistryPublisher.createIsRelatedTo(activates);
|
|
this.eService = activates.getTarget();
|
|
} catch (NotFoundException e) {
|
|
logger.error("THIS IS REALLY STRANGE. YOU SHOULD NE BE HERE. Error while creating {}.", activates, e);
|
|
throw e;
|
|
} catch (ResourceRegistryException e) {
|
|
logger.error("Error while creating {}", activates, e);
|
|
throw e;
|
|
}
|
|
|
|
hostingNode.attachResource(activates);
|
|
|
|
return activates;
|
|
|
|
}
|
|
|
|
public void removeEService() throws ResourceRegistryException {
|
|
try {
|
|
resourceRegistryPublisher.delete(eService);
|
|
} catch (ResourceRegistryException e) {
|
|
logger.error("Unable to delete {}. Going to set the state to {}", applicationContext.name(), getState());
|
|
updateServiceStateFacet();
|
|
}
|
|
}
|
|
|
|
public Map<UUID,String> getContextsUUID() throws Exception {
|
|
return resourceRegistryPublisher.getResourceContexts(eService);
|
|
}
|
|
|
|
}
|