Difference between revisions of "GHN Manager"
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Manuele.simi (Talk | contribs) (→Requesting a gHN shutdown with the security enabled) |
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:: if ''CLEAN = True'' the gHN state is cleaned | :: if ''CLEAN = True'' the gHN state is cleaned | ||
| − | ==== Requesting a gHN shutdown ==== | + | ===== Requesting a gHN shutdown ===== |
<source lang="java"> | <source lang="java"> | ||
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try { | try { | ||
| − | endpoint.setAddress(new Address("http://" + | + | endpoint.setAddress(new Address("http://" + <gHNManager hostname> + ":" + <gHNManager port> +"/wsrf/services/gcube/common/vremanagement/GHNManager")); |
GHNManagerServiceAddressingLocator locator = new GHNManagerServiceAddressingLocator(); | GHNManagerServiceAddressingLocator locator = new GHNManagerServiceAddressingLocator(); | ||
| Line 51: | Line 51: | ||
</source> | </source> | ||
| − | ==== Requesting a gHN shutdown with the security enabled ==== | + | ===== Requesting a gHN shutdown with the security enabled ===== |
<source lang="java"> | <source lang="java"> | ||
| Line 66: | Line 66: | ||
try { | try { | ||
| − | endpoint.setAddress(new Address("http://" + | + | endpoint.setAddress(new Address("http://" + <gHNManager hostname> + ":" + <gHNManager port> +"/wsrf/services/gcube/common/vremanagement/GHNManager")); |
GHNManagerServiceAddressingLocator locator = new GHNManagerServiceAddressingLocator(); | GHNManagerServiceAddressingLocator locator = new GHNManagerServiceAddressingLocator(); | ||
Revision as of 17:24, 5 March 2010
Contents
Introduction
The gHNManager is a gCube Local Service providing an interface for remotely managing the gHN. In particular, the service is responsible for:
- the management and changes of the scope of the node and the locally deployed service instances according to the Scope Management rules;
- publishing in the Information System the gCube Resource representing the gHN;
- shutdown and restarting the gHN.
Design
For the architectural point of view, the gHNManager is a stateless service. As any other Local Service, at start up time it automatically joins all the scopes of the node. As soon as the gHN is joined to more scopes, the same happens to the gHNManager instance.
Interface
The service exposes a single port-type (GHNManagerPortType) providing the following operations to manipulate the gHN and the hosted Running Instances:
- addScope – takes as input a valid scope expression; the scope is assigned to the gHN
- removeScope – takes as input a valid scope expression; the scope is removed from the gHN
- addRItoScope – takes as input a valid scope expression, a service name and a service class; the scope is assigned to the local instance identified by the given name and class.
- removeRIScope – takes as input a valid scope expression, a service name and a service class; the scope is removed from the local instance identified by the given name and class.
- shutdown()– takes as input a set of non-mandatory options; as basic behavior it shutdowns the gHN, then, depending on the input options:
- if RESTART = True the container is restarted
- if CLEAN = True the gHN state is cleaned
Requesting a gHN shutdown
import org.gcube.common.vremanagement.ghnmanager.stubs.GHNManagerPortType; import org.gcube.common.vremanagement.ghnmanager.stubs.ShutdownOptions; import org.gcube.common.vremanagement.ghnmanager.stubs.service.GHNManagerServiceAddressingLocator; ... GCUBESecurityManagerImpl managerSec = new GCUBESecurityManagerImpl() { public boolean isSecurityEnabled() {return false;} }; EndpointReferenceType endpoint = new EndpointReferenceType(); try { endpoint.setAddress(new Address("http://" + <gHNManager hostname> + ":" + <gHNManager port> +"/wsrf/services/gcube/common/vremanagement/GHNManager")); GHNManagerServiceAddressingLocator locator = new GHNManagerServiceAddressingLocator(); GHNManagerPortType pt = locator.getGHNManagerPortTypePort(endpoint); pt = GCUBERemotePortTypeContext.getProxy(pt,GCUBEScope.getScope(args[2]),managerSec); ShutdownOptions options = new ShutdownOptions(); options.setRestart(false); options.setClean(false); pt.shutdown(options); } catch (Exception e) { logger.error ("FAILED to shutdown", e); }
Requesting a gHN shutdown with the security enabled
import org.gcube.common.vremanagement.ghnmanager.stubs.GHNManagerPortType; import org.gcube.common.vremanagement.ghnmanager.stubs.ShutdownOptions; import org.gcube.common.vremanagement.ghnmanager.stubs.service.GHNManagerServiceAddressingLocator; ... GCUBESecurityManagerImpl managerSec = new GCUBESecurityManagerImpl() { public boolean isSecurityEnabled() {return true;} }; EndpointReferenceType endpoint = new EndpointReferenceType(); try { endpoint.setAddress(new Address("http://" + <gHNManager hostname> + ":" + <gHNManager port> +"/wsrf/services/gcube/common/vremanagement/GHNManager")); GHNManagerServiceAddressingLocator locator = new GHNManagerServiceAddressingLocator(); GHNManagerPortType pt = locator.getGHNManagerPortTypePort(endpoint); if (isSecurityEnabled) { logger.info("Loading proxy from " + args[4]); managerSec.useCredentials(ProxyUtil.loadProxyCredentials(args[4])); //setting credentials on stubs, by specifying authN mode and Delegation Mode managerSec.setSecurity(pt, GCUBESecurityManager.AuthMode.PRIVACY, GCUBESecurityManager.DelegationMode.FULL); } pt = GCUBERemotePortTypeContext.getProxy(pt,GCUBEScope.getScope(args[2]),managerSec); ShutdownOptions options = new ShutdownOptions(); options.setRestart(false); options.setClean(false); pt.shutdown(options); } catch (Exception e) { logger.error ("FAILED to shutdown", e); }
