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package org.glassfish.internal.api;
import com.sun.enterprise.config.serverbeans.*;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.config.support.CommandTarget;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.Habitat;
import java.util.ArrayList;
import java.util.List;
@Service
public class Target {
@Inject
private Domain domain;
@Inject
private ServerEnvironment serverEnv;
@Inject
Habitat habitat;
/**
* Lets caller to know if the caller is in DAS
*/
public boolean isThisDAS() {
return serverEnv.isDas();
}
/**
* Lets caller to know if the caller is in an instance
*/
public boolean isThisInstance() {
return serverEnv.isInstance();
}
/**
* Checks if a given target is cluster or nor
* @param targetName the name of the target
* @return true if the target represents a cluster; false otherwise
*/
public boolean isCluster(String targetName) {
return (domain.getClusterNamed(targetName) != null);
}
/**
* Returns the Cluster element for a given cluster name
* @param targetName the name of the target
* @return Cluster element that represents the cluster
*/
public Cluster getCluster(String targetName) {
return domain.getClusterNamed(targetName);
}
/**
* Returns the config element that represents a given cluster
* @param targetName the name of the target
* @return Config element representing the cluster
*/
public Config getClusterConfig(String targetName) {
Cluster cl = getCluster(targetName);
if(cl == null)
return null;
return(domain.getConfigNamed(cl.getConfigRef()));
}
/**
* Returns config element that represents a given server
* @param targetName the name of the target
* @return Config element representing the server instance
*/
public Config getServerConfig(String targetName) {
Server s = domain.getServerNamed(targetName);
if(s == null)
return null;
return domain.getConfigNamed(s.getConfigRef());
}
/**
* Given a name (of instance or cluster or config), returns the appropriate Config object
* @param targetName name of target
* @return Config element of this target
*/
public Config getConfig(String targetName) {
if(CommandTarget.CONFIG.isValid(habitat, targetName))
return domain.getConfigNamed(targetName);
if(CommandTarget.DAS.isValid(habitat, targetName))
return getServerConfig(targetName);
if(CommandTarget.STANDALONE_INSTANCE.isValid(habitat, targetName))
return getServerConfig(targetName);
if(CommandTarget.CLUSTER.isValid(habitat, targetName))
return getClusterConfig(targetName);
return null;
}
/**
* Given an instance that is part of a cluster, returns the Cluster element of the cluster to which the
* given instance belongs
* @param targetName name of target
* @return Cluster element to which this instance below
*/
public Cluster getClusterForInstance(String targetName) {
return domain.getClusterForInstance(targetName);
}
/**
* Given a list instance names, get List<Server>
*/
public List<Server> getInstances(List<String> names) {
List<Server> instances = new ArrayList<Server>();
for(String aName : names)
instances.addAll(getInstances(aName));
return instances;
}
public Node getNode(String targetName) {
return domain.getNodeNamed(targetName);
}
/**
* Given the name of a target, returns a list of Server objects. If given target is a standalone server,
* then the server's Server element is returned in the list. If the target is a cluster, then the list of Server
* elements that represent all server instances of that cluster is returned.
* @param targetName the name of the target
* @return list of Server elements that represent the target
*/
public List<Server> getInstances(String targetName) {
List<Server> instances = new ArrayList<Server>();
if(CommandTarget.DOMAIN.isValid(habitat, targetName))
return instances;
if(CommandTarget.DAS.isValid(habitat, targetName))
return instances;
if(CommandTarget.STANDALONE_INSTANCE.isValid(habitat, targetName)) {
instances.add(domain.getServerNamed(targetName));
}
if(CommandTarget.CLUSTER.isValid(habitat, targetName)) {
instances = getCluster(targetName).getInstances();
}
if(CommandTarget.CONFIG.isValid(habitat, targetName)) {
List<String> targets = domain.getAllTargets();
for(String aTarget : targets) {
if(CommandTarget.CLUSTER.isValid(habitat, aTarget) &&
getCluster(aTarget).getConfigRef().equals(targetName)) {
instances.addAll(getCluster(aTarget).getInstances());
}
if(CommandTarget.STANDALONE_INSTANCE.isValid(habitat, aTarget) &&
domain.getServerNamed(aTarget).getConfigRef().equals(targetName)) {
instances.add(domain.getServerNamed(aTarget));
}
}
}
if(CommandTarget.NODE.isValid(habitat, targetName)) {
List<Server> allInstances = getAllInstances();
for(Server s : allInstances) {
if(targetName.equals(s.getNodeRef()))
instances.add(s);
}
}
return instances;
}
/**
* Gets all instances present in the domain
* @return list of Server elements that represent all instances
*/
public List<Server> getAllInstances() {
List<Server> list = new ArrayList<Server>();
for(Server s : domain.getServers().getServer()) {
if(!CommandTarget.DAS.isValid(habitat, s.getName())) {
list.add(s);
}
}
return list;
}
/**
* Given name of a target verifies if it is valid
* @param targetName name of the target
* @return true if the target is a valid cluster or server instance or a config
*/
public boolean isValid(String targetName) {
if(isCluster(targetName))
return true;
if(getInstances(targetName).size() != 0)
return true;
if(domain.getConfigNamed(targetName) != null)
return true;
return false;
}
}