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/**
* CMI : Cluster Method Invocation
* Copyright (C) 2007,2008 Bull S.A.S.
* Contact: [email protected]
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
* --------------------------------------------------------------------------
* $Id:CMIAdmin.java 949 2007-06-02 17:24:33Z loris $
* --------------------------------------------------------------------------
*/
package org.ow2.cmi.admin;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.net.MalformedURLException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import javax.management.JMRuntimeException;
import javax.management.ObjectName;
import javax.management.remote.JMXServiceURL;
import net.jcip.annotations.ThreadSafe;
import org.ow2.cmi.controller.common.ClusterViewManager;
import org.ow2.cmi.controller.common.ClusterViewManagerException;
import org.ow2.cmi.controller.server.ProtocolNotFoundException;
import org.ow2.cmi.controller.server.ServerClusterViewManager;
import org.ow2.cmi.lb.PropertyConfigurationException;
import org.ow2.cmi.lb.data.PropertyData;
import org.ow2.cmi.lb.policy.IPolicy;
import org.ow2.cmi.lb.strategy.IStrategy;
import org.ow2.cmi.lb.util.PolicyFactory;
import org.ow2.cmi.reference.CMIReference;
import org.ow2.cmi.reference.ObjectNotFoundException;
import org.ow2.cmi.reference.ServerId;
import org.ow2.cmi.reference.ServerNotFoundException;
import org.ow2.cmi.reference.ServerRef;
import org.ow2.util.log.Log;
import org.ow2.util.log.LogFactory;
import org.ow2.util.pool.api.IPoolConfiguration;
/**
* Provides methods to admin a cluster. This class is a front end for users of cluster.
* Low level aspects are delegated at a ClusterViewManager.
* @author The new CMI team
*/
@ThreadSafe
public final class CMIAdmin implements CMIAdminMBean {
/**
* Logger.
*/
private static final Log LOGGER = LogFactory.getLog(CMIAdmin.class);
/**
* clusterViewManager to delegate tasks.
*/
private final ClusterViewManager clusterViewManager;
/**
* The name binded in the MBean Server.
*/
private final ObjectName objectName;
/**
* Singleton.
*/
private static CMIAdmin cmiAdmin;
/**
* Constructs a CMIAdmin MBean.
* @param clusterViewManager a manager of the cluster view to delegate tasks
* @param objectName the name binded in the MBean Server
*/
private CMIAdmin(final ClusterViewManager clusterViewManager, final ObjectName objectName) {
this.clusterViewManager = clusterViewManager;
this.objectName = objectName;
}
/**
* Returns an instance of CMIAdmin MBean.
* @param objectName the name binded in the MBean Server
* @param clusterViewManager the manager of the cluster view to use
* @return an instance of CMIAdmin MBean
*/
public static synchronized CMIAdmin getCMIAdmin(
final ObjectName objectName, final ClusterViewManager clusterViewManager) {
if(cmiAdmin == null) {
cmiAdmin = new CMIAdmin(clusterViewManager, objectName);
}
return cmiAdmin;
}
/**
* @param clusterViewManager
* @return
*/
public static CMIAdmin getCMIAdmin(final ClusterViewManager clusterViewManager) {
return getCMIAdmin(null, clusterViewManager);
}
/**
* Destroy the instance of CMIAdmin.
*/
public static synchronized void destroy() {
cmiAdmin = null;
}
/**
* Returns the ObjectName binded in the MBean Server.
* @return the ObjectName binded in the MBean Server
*/
public ObjectName getObjectName() {
return objectName;
}
/**
* @param protocolName a name of protocol
* @return the JMX connector URL to access to this MBean
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public JMXServiceURL getJMXServiceURL(final String protocolName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
JMXServiceURL jmxServiceURL;
try {
jmxServiceURL = ((ServerClusterViewManager) clusterViewManager).getJMXServiceURL(protocolName);
} catch (ProtocolNotFoundException e) {
throw new IllegalArgumentException("Unknown protocol: " + protocolName);
}
return jmxServiceURL;
}
/**
* @return the protocols registered in the manager
*/
public Set getProtocols() {
return clusterViewManager.getProtocols();
}
/**
* Returns a name of interface of this object.
* @param objectName a name of object
* @return a name of interface of this object
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public String getItfName(final String objectName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
return ((ServerClusterViewManager) clusterViewManager).getItfName(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n " + e.getMessage());
}
}
/**
* Returns the business interface name of an object bound with the given name (for ejb2 only).
* If the object is not an ejb2, null is returned.
* @param objectName a name of object
* @return the business interface name of an object bound with the given name
* @throws IllegalArgumentException if none object has the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public String getBusinessName(final String objectName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
return ((ServerClusterViewManager) clusterViewManager).getBusinessName(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* @param objectName a name of object
* @return true if the object with the given name is replicated
* @throws IllegalArgumentException if none object has the given name
*/
public boolean isReplicated(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.isReplicated(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* @param protocolName a name of protocol
* @return the set of references on server connected to this server
* @throws IllegalArgumentException if the given protocol name doesn't exist
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public Set getServerRefsForProtocol(final String protocolName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
Set serverRefs;
try {
serverRefs = ((ServerClusterViewManager) clusterViewManager).getServerRefs(protocolName);
} catch (ProtocolNotFoundException e) {
throw new IllegalArgumentException("Protocol not found: " + protocolName + "\n" + e.getMessage());
}
Set result = new HashSet();
for(ServerId serverRef : serverRefs) {
result.add(serverRef.getProviderURL());
}
return result;
}
/**
* Gets objects hosted on a given server started with a given protocol.
* @param serverUrl a server reference
* @param protocolName a name of protocol
* @return set of objects hosted on the server
* @throws IllegalArgumentException
* if the given protocol name doesn't exist or the server is not registered for the given protocol
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public Set getServerObjectsForProtocol(final String serverUrl, final String protocolName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
Set objectRefs;
try {
objectRefs = ((ServerClusterViewManager) clusterViewManager).getServerObjectForProtocol(serverUrl, protocolName);
} catch (ProtocolNotFoundException e) {
throw new IllegalArgumentException("Unable to get Objects for server " + serverUrl
+ " on " + protocolName + " protocol \n" + e.getMessage());
}
return objectRefs;
}
/**
* @return the set of clustered object names
*/
public Set getObjectNames() {
return clusterViewManager.getObjectNames();
}
/**
* @param protocolName a name of protocol
* @return the reference on the local registry for the given protocol
* @throws IllegalArgumentException if the given protocol name doesn't exist
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public String getRefOnLocalRegistry(final String protocolName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
ServerRef serverRef;
try {
serverRef = ((ServerClusterViewManager) clusterViewManager).getRefOnLocalRegistry(protocolName);
} catch (ProtocolNotFoundException e) {
LOGGER.error("Unknown protocol " + protocolName, e);
throw new IllegalArgumentException("Unknown protocol " + protocolName, e);
}
return serverRef.getProviderURL();
}
/**
* Returns the name of class of policy for the object with the given name.
* @param objectName name of the object
* @return the name of class of policy for the object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public String getPolicyClassName(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.getPolicyClassName(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Sets a new policy for a given object.
* @param objectName a name of object
* @param policyClassName a name of class of policy
* @throws IllegalArgumentException if none object has the given name
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws ClassNotFoundException if the class is missing
*/
public void setPolicyClassName(final String objectName, final String policyClassName)
throws IllegalArgumentException, UnsupportedOperationException, ClassNotFoundException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
((ServerClusterViewManager) clusterViewManager).setPolicyClassName(
objectName, policyClassName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException(
"Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns the name of class of strategy for the object with the given name.
* @param objectName name of the object
* @return the name of class of strategy for the object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public String getStrategyClassName(final String objectName)
throws IllegalArgumentException {
try {
return clusterViewManager.getStrategyClassName(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException(
"Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Sets a new strategy for a given object.
* @param objectName a name of object
* @param strategyClassName a name of class of strategy
* @throws IllegalArgumentException if none object has the given name
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws ClassNotFoundException if the class is missing
*/
public void setStrategyClassName(final String objectName, final String strategyClassName)
throws IllegalArgumentException, UnsupportedOperationException, ClassNotFoundException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
((ServerClusterViewManager) clusterViewManager).setStrategyClassName(
objectName, strategyClassName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException(
"Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns the set of property names for the object with the given name.
* @param objectName a name of object
* @return the set of property names for the object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
@SuppressWarnings("unchecked")
public Set getPropertiesNamesForPolicy(final String objectName)
throws IllegalArgumentException {
Map properties;
Class policyClass;
try {
policyClass = clusterViewManager.getPolicyClass(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException(
"Object not found: " + objectName + "\n" + e.getMessage());
} catch (ClusterViewManagerException e) {
LOGGER.error("Error while finding the policy class", e);
throw new RuntimeException("Error while finding the policy class", e);
}
Set propertiesNames = new HashSet();
try {
properties = PolicyFactory.getPropertyData(policyClass);
for(String propertyName : properties.keySet()) {
if(!List.class.equals(
PolicyFactory.getPropertyRawType(policyClass, propertyName))) {
propertiesNames.add(propertyName);
}
}
} catch (PropertyConfigurationException e) {
LOGGER.error("Cannot get properties for class {0}", policyClass.getName(), e);
throw new RuntimeException("Cannot get properties for class "
+ policyClass.getName() + "\n" + e.getMessage());
}
return propertiesNames;
}
/**
* Returns the set of property names (for which value is a list) for the object with the given name.
* @param objectName a name of object
* @return the set of property names for the object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
@SuppressWarnings("unchecked")
public Set getListPropertiesNamesForPolicy(final String objectName)
throws IllegalArgumentException {
Map properties;
Class policyClass;
try {
policyClass = clusterViewManager.getPolicyClass(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
} catch (ClusterViewManagerException e) {
LOGGER.error("Error while finding the policy class", e);
throw new RuntimeException("Error while finding the policy class", e);
}
Set propertiesNames = new HashSet();
try {
properties = PolicyFactory.getPropertyData(policyClass);
for(String propertyName : properties.keySet()) {
if(List.class.equals(
PolicyFactory.getPropertyRawType(policyClass, propertyName))) {
propertiesNames.add(propertyName);
}
}
} catch (PropertyConfigurationException e) {
LOGGER.error("Cannot get properties for class {0}", policyClass.getName(), e);
throw new RuntimeException("Cannot get properties for class "
+ policyClass.getName() + "\n" + e.getMessage());
}
return propertiesNames;
}
/**
* Returns the value of the property with the given name,
* from a policy instance associated to the object instance.
* @param objectName a name of object
* @param propertyName a name of property
* @return the value of the property with the given name, or null if there is not property for this name
* @throws IllegalArgumentException if none object has the given name, or if the value is a list
*/
@SuppressWarnings("unchecked")
public String getPropertyForPolicy(final String objectName, final String propertyName)
throws IllegalArgumentException {
IPolicy policy;
try {
policy = clusterViewManager.getPolicy(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
Class policyClass = policy.getClass();
Type propertyType;
try {
propertyType = PolicyFactory.getPropertyRawType(policyClass, propertyName);
if(List.class.equals(propertyType)) {
LOGGER.error("The value of property {0} is a list", objectName);
throw new IllegalArgumentException("The value of property " + objectName + " is a list");
}
return PolicyFactory.getProperty(policy, propertyName).toString();
} catch (PropertyConfigurationException e) {
LOGGER.error("Cannot get properties for class {0}", policyClass.getName(), e);
throw new RuntimeException("Cannot get properties for class "
+ policyClass.getName() + "\n" + e.getMessage());
}
}
/**
* Returns the value of the property with the given name,
* retrieved from clustering metadatas.
* @param objectName a name of object
* @param propertyName a name of property
* @return the value of the property with the given name, or null if there is not property for this name
* @throws IllegalArgumentException if none object has the given name, or if the value is a list
* @throws UnsupportedOperationException if operation is not supported.
*/
@SuppressWarnings("unchecked")
public Object getStaticPropertyForPolicy(final String objectName, final String propertyName)
throws JMRuntimeException, UnsupportedOperationException{
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
return clusterViewManager.getPropertyForPolicy(objectName, propertyName);
} catch (Exception e) {
LOGGER.debug("Cannot get properties for object {0}", objectName, e);
throw new JMRuntimeException("Cannot get properties for object "
+ objectName + "\n" + e.getMessage());
}
}
/**
* Sets a property on policy class of a given object(not object instance).
* A property is either a String or a list of String.
* @param objectName a name of object
* @param propertyName a name of property
* @param propertyValue a value for the given name of property
* @throws IllegalArgumentException if none object has the given name, or if the property doesn't exist or has an invalid type
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void setStaticPropertyForPolicy(final String objectName, final String propertyName, final String propertyValue)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
/**
* Set property for objest that will be created further
*/
Class policyClass = clusterViewManager.getPolicyClass(objectName);
((ServerClusterViewManager)clusterViewManager).setStaticPropertyForPolicy(objectName,
propertyName, PolicyFactory.convertString(policyClass, propertyName, propertyValue));
} catch (Exception e) {
LOGGER.debug("Cannot set property {0} for object {1}", propertyName, objectName, e);
throw new JMRuntimeException("Cannot set property " + propertyName + " for object "
+ objectName + "\n" + e.getMessage());
}
}
/**
* Returns the list of value of the property with the given name.
* @param objectName a name of object
* @param propertyName a name of property
* @return the list of value of the property with the given name, or null if there is not property for this name
* @throws IllegalArgumentException if none object has the given name, or if if the value is not a list
*/
@SuppressWarnings("unchecked")
public List getListPropertyForPolicy(final String objectName, final String propertyName)
throws IllegalArgumentException {
IPolicy policy;
try {
policy = clusterViewManager.getPolicy(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
Class policyClass = policy.getClass();
Type propertyType;
try {
propertyType = PolicyFactory.getPropertyRawType(policyClass, propertyName);
if(!List.class.equals(propertyType)) {
LOGGER.error("The value of property {0} is not a list", objectName);
throw new IllegalArgumentException("The value of property " + objectName + " is not a list");
}
List result = new ArrayList();
for(Object obj : (List) PolicyFactory.getProperty(policy, propertyName)) {
result.add(obj.toString());
}
return result;
} catch (PropertyConfigurationException e) {
LOGGER.error("Cannot get properties for class {0}", policyClass.getName(), e);
throw new RuntimeException("Cannot get properties for class "
+ policyClass.getName() + "\n" + e.getMessage());
}
}
/**
* Sets a property for a given object.
* @param objectName a name of object
* @param propertyName a name of property
* @param propertyValue a value for the given name of property
* @throws IllegalArgumentException if none object has the given name or if the property doesn't exist or has an invalid type
* @throws UnsupportedOperationException if the used manager is at client-side
*/
@SuppressWarnings("unchecked")
public void setPropertyForPolicy(final String objectName, final String propertyName, final String propertyValue)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
Class policyClass = clusterViewManager.getPolicyClass(objectName);
((ServerClusterViewManager) clusterViewManager).setPropertyForPolicy(
objectName, propertyName, PolicyFactory.convertString(policyClass, propertyName, propertyValue));
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
} catch (PropertyConfigurationException e) {
throw new IllegalArgumentException("The property " + propertyName + " cannot be applied", e);
} catch (ClusterViewManagerException e) {
LOGGER.error("Error while finding the policy class", e);
throw new RuntimeException("Error while finding the policy class", e);
}
}
/**
* Sets a property (a list of value) for a given object.
* @param objectName a name of object
* @param propertyName a name of property
* @param propertyValue a list of value for the given name of property
* @throws IllegalArgumentException if none object has the given name, or if the property doesn't exist or has an invalid type
* @throws UnsupportedOperationException if the used manager is at client-side
*/
@SuppressWarnings("unchecked")
public void setListPropertyForPolicy(final String objectName, final String propertyName, final List propertyValue)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
Class policyClass = clusterViewManager.getPolicyClass(objectName);
((ServerClusterViewManager) clusterViewManager).setPropertyForPolicy(
objectName, propertyName, PolicyFactory.convertStrings(policyClass, propertyName, propertyValue));
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
} catch (PropertyConfigurationException e) {
throw new IllegalArgumentException("The property " + propertyName + " cannot be applied" + "\n" + e.getMessage());
} catch (ClusterViewManagerException e) {
LOGGER.error("Error while finding the policy class", e);
throw new RuntimeException("Error while finding the policy class", e);
}
}
/**
* Sets the properties for a given object. A property is either a String or a list of String.
* @param objectName a name of object
* @param properties properties a set of properties
* @throws IllegalArgumentException if none object has the given name, or if a property doesn't exist or has an invalid type
* @throws UnsupportedOperationException if the used manager is at client-side
*/
@SuppressWarnings("unchecked")
public void setPropertiesForPolicy(final String objectName, final Map properties)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
Class policyClass = clusterViewManager.getPolicyClass(objectName);
((ServerClusterViewManager) clusterViewManager).setPropertiesForPolicy(
objectName, convertProperties(policyClass, properties));
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
} catch (PropertyConfigurationException e) {
throw new IllegalArgumentException(
"The properties " + properties + " cannot be applied" + "\n" + e.getMessage());
} catch (ClusterViewManagerException e) {
LOGGER.error("Error while finding the policy class", e);
throw new RuntimeException("Error while finding the policy class", e);
}
}
/**
* Sets the algorithm of load-balancing for the object with the given name.
* @param objectName a name of object
* @param policyClassName a name of class of policy
* @param strategyClassName a name of class of strategy
* @param properties a set of properties
* @throws IllegalArgumentException if none object has the given name, or if a property doesn't exist or has an invalid type
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws ClassNotFoundException if the class is missing
*/
@SuppressWarnings("unchecked")
public void setAlgorithmForPolicy(final String objectName,
final String policyClassName, final String strategyClassName, final Map properties)
throws IllegalArgumentException, UnsupportedOperationException, ClassNotFoundException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
Class policyClass = Class.forName(policyClassName);
Class[] interfaces = policyClass.getInterfaces();
if(!Arrays.asList(interfaces).contains(IPolicy.class)) {
throw new IllegalArgumentException(
policyClassName + " doesn't implement the interface " + IPolicy.class.getName());
}
Class strategyClass = Class.forName(strategyClassName);
interfaces = strategyClass.getInterfaces();
if(!Arrays.asList(interfaces).contains(IStrategy.class)) {
throw new IllegalArgumentException(
strategyClassName + " doesn't implement the interface " + IStrategy.class.getName());
}
try {
((ServerClusterViewManager) clusterViewManager).setAlgorithmForPolicy(
objectName, policyClassName, strategyClassName,
convertProperties((Class) policyClass, properties));
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
} catch (PropertyConfigurationException e) {
throw new IllegalArgumentException(
"The properties " + properties + " cannot be applied" + "\n" +e.getMessage());
}
}
/**
* @param policyClass a class implementing a policy
* @param properties properties
* @return values with the good type
* @throws ObjectNotFoundException if no object has the given name
* @throws PropertyConfigurationException if a property doesn't exist or has an invalid type
*/
@SuppressWarnings("unchecked")
private Map convertProperties(
final Class policyClass, final Map properties)
throws ObjectNotFoundException, PropertyConfigurationException {
Map castedProps = new HashMap();
for(Entry propertyEntry : properties.entrySet()) {
String propertyName = propertyEntry.getKey();
Type propertyType = PolicyFactory.getPropertyType(policyClass, propertyName);
Object value = propertyEntry.getValue();
if(propertyType instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) propertyType;
if(parameterizedType.getRawType().equals(List.class)) {
if(parameterizedType.getActualTypeArguments()[0].equals(String.class)) {
value = PolicyFactory.convertStrings(
policyClass, propertyName, (List) value);
}
} else {
throw new PropertyConfigurationException("Support only list as parameterized type");
}
} else {
if(propertyType.equals(String.class)) {
value = PolicyFactory.convertString(
policyClass, propertyName, (String) value);
}
}
castedProps.put(propertyName, value);
}
return castedProps;
}
/**
* Returns a list of String representing a ServerRef for an object with the given name and protocol.
* @param objectName a name of object
* @param protocolName a name of protocol
* @return a list of String representing a ServerRef for an object with the given name and protocol
* @throws IllegalArgumentException if none object has the given name
*/
public List getServerRefs(final String objectName, final String protocolName)
throws IllegalArgumentException {
Collection cmiReferences;
try {
cmiReferences = clusterViewManager.getCMIReferences(objectName, protocolName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
List stringOfCMIRefs = new ArrayList(cmiReferences.size());
for(CMIReference cmiReference : cmiReferences) {
stringOfCMIRefs.add(cmiReference.getServerRef().getProviderURL());
}
return stringOfCMIRefs;
}
/**
* Returns a list of String representing a ServerRef for an object with the given name.
* @param objectName a name of object
* @return a list of String representing a ServerRef for an object with the given name
* @throws IllegalArgumentException if none object has the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public List getServerRefs(final String objectName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
Collection cmiReferences;
try {
cmiReferences = ((ServerClusterViewManager) clusterViewManager).getCMIReferences(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
List stringOfCMIRefs = new ArrayList(cmiReferences.size());
for(CMIReference cmiReference : cmiReferences) {
stringOfCMIRefs.add(cmiReference.getServerRef().getProviderURL());
}
return stringOfCMIRefs;
}
/**
* Returns the set of name of cluster.
* @return the set of name of cluster
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public Set getClusterNames() throws UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
Set clusterNames = ((ServerClusterViewManager) clusterViewManager).getClusterNames();
return clusterNames;
}
/**
* @param clusterName The cluster name
* @return The set of object names included in the given cluster
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public Set getObjectNames(final String clusterName) throws UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
Set objectNames = ((ServerClusterViewManager) clusterViewManager).getObjectNames(clusterName);
return objectNames;
}
/**
* Returns the time between each update of the cluster view by clients.
* @return the time between each update of the cluster view by clients
*/
public Integer getDelayToRefresh() {
return clusterViewManager.getDelayToRefresh();
}
/**
* Sets the time between each update of the cluster view by clients.
* @param delay the time between each update of the cluster view by clients
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void setDelayToRefresh(final Integer delay) throws UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
((ServerClusterViewManager) clusterViewManager).setDelayToRefresh(delay);
}
/**
* Returns the name of cluster for the object with the given name.
* @param objectName a name of object
* @return the name of cluster for a object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public String getClusterName(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.getClusterName(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns the maximal size of pool of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @return the maximal size of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public Integer getMaxPoolSize(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.getPoolConfiguration(objectName).getMax();
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Sets the maximal size of pool of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @param maxSize the maximal size of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void setMaxPoolSize(final String objectName, final Integer maxSize)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
IPoolConfiguration poolConfiguration = clusterViewManager.getPoolConfiguration(objectName);
poolConfiguration.setMax(maxSize);
((ServerClusterViewManager) clusterViewManager).getPool(objectName).setPoolConfiguration(poolConfiguration);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Sets the minimal size of pool of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @param minSize the minimal size of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void setMinPoolSize(final String objectName, final Integer minSize)
throws IllegalArgumentException, UnsupportedOperationException {
// TODO
}
/**
* Returns the minimal size of pool of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @return the minimal size of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public Integer getMinPoolSize(final String objectName) throws IllegalArgumentException {
// TODO
return -1;
}
/**
* Sets the max waiters of pool of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @param maxPoolWaiters the max waiters of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void setMaxPoolWaiters(final String objectName, final Integer maxPoolWaiters)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
IPoolConfiguration poolConfiguration = clusterViewManager.getPoolConfiguration(objectName);
poolConfiguration.setMaxWaiters(maxPoolWaiters);
((ServerClusterViewManager) clusterViewManager).getPool(objectName).setPoolConfiguration(poolConfiguration);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns the max waiters of pool of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @return the maximal waiters of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public Integer getMaxPoolWaiters(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.getPoolConfiguration(objectName).getMaxWaiters();
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Sets the pool timeout of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @param poolTimeout the timeout of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void setPoolTimeout(final String objectName, final Long poolTimeout)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
try {
IPoolConfiguration poolConfiguration = clusterViewManager.getPoolConfiguration(objectName);
poolConfiguration.setTimeout(poolTimeout);
((ServerClusterViewManager) clusterViewManager).getPool(objectName).setPoolConfiguration(poolConfiguration);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns the pool timeout of CMIReferenceable for a object with the given name.
* @param objectName a name of object
* @return the timeout of pool of CMIReferenceable for a object with the given name
* @throws IllegalArgumentException if none object has the given name
*/
public Long getPoolTimeout(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.getPoolConfiguration(objectName).getTimeout();
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns true if the pool for object with the given name should be empty.
* @param objectName a name of object
* @return true if the pool for object with the given name should be empty
* @throws IllegalArgumentException if no object is bound with the given name
*/
public boolean isPoolToEmpty(final String objectName) throws IllegalArgumentException {
try {
return clusterViewManager.isPoolToEmpty(objectName);
} catch (ObjectNotFoundException e) {
LOGGER.error("Object not found: {0}", objectName, e);
throw new IllegalArgumentException("Object not found: " + objectName + "\n" + e.getMessage());
}
}
/**
* Returns true the server with the given reference if blacklisted.
* @param serverName a reference on a server
* @return true the server with the given reference if blacklisted
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws MalformedURLException if the URL is malformed
* @throws UnknownHostException if the given host cannot be resolved
*/
public boolean isServerBlackListed(final String serverName)
throws UnsupportedOperationException, MalformedURLException, UnknownHostException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
return ((ServerClusterViewManager) clusterViewManager).isServerBlackListed(new ServerRef(serverName));
}
/**
* Adds the pool of the object with the given name of the list of pool that should be empty.
* @param objectName a name of object
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void addPooltoEmpty(final String objectName) throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
((ServerClusterViewManager) clusterViewManager).addPoolToEmpty(objectName);
}
/**
* Adds a server to the blacklist.
* @param serverName a reference on a server
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws MalformedURLException if the URL is malformed
* @throws UnknownHostException if the given host cannot be resolved
*/
public void addServerToBlackList(final String serverName)
throws UnsupportedOperationException, MalformedURLException, UnknownHostException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
((ServerClusterViewManager) clusterViewManager).addServerToBlackList(new ServerRef(serverName));
}
/**
* Removes the pool of the object with the given name of the list of pool that should be empty.
* @param objectName a name of object
* @throws IllegalArgumentException if no object is bound with the given name
* @throws UnsupportedOperationException if the used manager is at client-side
*/
public void removePoolToEmpty(final String objectName)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
((ServerClusterViewManager) clusterViewManager).removePoolToEmpty(objectName);
}
/**
* Removes a server from the blacklist.
* @param serverName a reference on a server
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws MalformedURLException if the URL is malformed
* @throws UnknownHostException if the given host cannot be resolved
*/
public void removeServerFromBlackList(final String serverName)
throws UnsupportedOperationException, MalformedURLException, UnknownHostException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
((ServerClusterViewManager) clusterViewManager).removeServerFromBlackList(new ServerRef(serverName));
}
/**
* Returns the load-factor for the server with the given address.
* @param serverRef a reference on a server
* @return the load-factor for the server with the given address
* @throws IllegalArgumentException if none server has the given address
* @throws MalformedURLException if the URL is malformed
* @throws UnknownHostException if the given host cannot be resolved
*/
public Integer getLoadFactor(final String serverRef)
throws IllegalArgumentException, MalformedURLException, UnknownHostException {
try {
return clusterViewManager.getLoadFactor(new ServerRef(serverRef));
} catch(ServerNotFoundException e) {
LOGGER.error("Server not found: {0}", serverRef, e);
throw new IllegalArgumentException("Server not found: " + serverRef + "\n" + e.getMessage());
}
}
/**
* Sets the load-factor for the server with the given address.
* @param serverRef a reference on a server
* @param loadFactor the load-factor for the server with the given address
* @throws UnsupportedOperationException if the used manager is at client-side
* @throws MalformedURLException if the URL is malformed
* @throws UnknownHostException if the given host cannot be resolved
*/
public void setLoadFactor(final String serverRef, final String loadFactor)
throws UnsupportedOperationException, MalformedURLException, UnknownHostException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
((ServerClusterViewManager) clusterViewManager).setLoadFactor(new ServerRef(serverRef), new Integer(loadFactor));
}
/**
* @return the numbers of clients connected to a provider of the cluster view
*/
public Integer getNbClientsConnectedToProvider() {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
return ((ServerClusterViewManager) clusterViewManager).getNbClientsConnectedToProvider();
}
/**
* Receive file from remote sender. Used to set strategy or policy class.
* @param fileBuff Byte buffer
* @param fileName The file name
* @param attributeToSet The attribute to set policies || strategies
* @return
*/
public Boolean receiveFile(final Byte[] fileBuff, final String fileName, final String attributeToSet)
throws IllegalArgumentException, UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
if ("policies".equals(attributeToSet)) {
//set LBpolicyClass
}else if ("strategies".equals(attributeToSet)) {
//set lb strategy class.
}else {
}
return true;
}
/**
* Gets available load balancing policies and strategies.
* @return available policies and strategies
* @throws UnsupportedOperationException if the operation is not supported
*/
public Map>retrieveAvailablePoliciesAndStrategies()throws UnsupportedOperationException {
if(!(clusterViewManager instanceof ServerClusterViewManager)) {
LOGGER.error("Clients cannot call this method");
throw new UnsupportedOperationException("Clients cannot call this method");
}
return ((ServerClusterViewManager) clusterViewManager).getAvailablePoliciesAndStrategies();
}
}
