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package org.glassfish.loadbalancer.admin.cli.reader.impl;
import com.sun.enterprise.config.serverbeans.ApplicationRef;
import com.sun.enterprise.config.serverbeans.HealthChecker;
import org.glassfish.loadbalancer.admin.cli.transform.Visitor;
import org.glassfish.loadbalancer.admin.cli.transform.ClusterVisitor;
import org.glassfish.loadbalancer.admin.cli.reader.api.ClusterReader;
import org.glassfish.loadbalancer.admin.cli.reader.api.InstanceReader;
import org.glassfish.loadbalancer.admin.cli.reader.api.WebModuleReader;
import org.glassfish.loadbalancer.admin.cli.reader.api.HealthCheckerReader;
import com.sun.enterprise.config.serverbeans.Cluster;
import com.sun.enterprise.config.serverbeans.ClusterRef;
import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.config.serverbeans.ServerRef;
import java.util.Iterator;
import java.util.List;
import org.glassfish.internal.data.ApplicationRegistry;
import org.glassfish.loadbalancer.admin.cli.reader.api.LbReaderException;
/**
* Impl class for ClusterReader. This provides loadbalancer
* data for a cluster.
*
* @author Kshitiz Saxena
*/
public class ClusterReaderImpl implements ClusterReader {
public ClusterReaderImpl(Domain domain, ApplicationRegistry appRegistry, Cluster cluster) {
_domain = domain;
_appRegistry = appRegistry;
_cluster = cluster;
}
public ClusterReaderImpl(Domain domain, ApplicationRegistry appRegistry, ClusterRef clusterRef) {
_domain = domain;
_appRegistry = appRegistry;
_clusterRef = clusterRef;
_cluster = domain.getClusterNamed(clusterRef.getRef());
}
@Override
public String getName() {
return _cluster.getName();
}
@Override
public InstanceReader[] getInstances() throws LbReaderException {
List<ServerRef> servers = null;
servers = _cluster.getServerRef();
InstanceReader[] readers = null;
if (servers != null) {
readers = new InstanceReader[servers.size()];
Iterator<ServerRef> serverIter = servers.iterator();
int i = 0;
while (serverIter.hasNext()) {
readers[i++] = new InstanceReaderImpl(_domain,
serverIter.next());
}
}
return readers;
}
@Override
public HealthCheckerReader getHealthChecker() throws LbReaderException {
if (_clusterRef == null) {
return HealthCheckerReaderImpl.getDefaultHealthChecker();
}
HealthChecker bean = _clusterRef.getHealthChecker();
if (bean == null) {
return null;
} else {
HealthCheckerReader reader = new HealthCheckerReaderImpl(bean);
return reader;
}
}
@Override
public WebModuleReader[] getWebModules() throws LbReaderException {
List<ApplicationRef> refs = _cluster.getApplicationRef();
return ClusterReaderHelper.getWebModules(_domain, _appRegistry, refs, _cluster.getName());
}
@Override
public String getLbPolicy() {
if (_clusterRef == null) {
return defaultLBPolicy;
}
return _clusterRef.getLbPolicy();
}
@Override
public String getLbPolicyModule() {
if (_clusterRef == null) {
return null;
}
return _clusterRef.getLbPolicyModule();
}
@Override
public void accept(Visitor v) throws Exception{
ClusterVisitor cv = (ClusterVisitor) v;
cv.visit(this);
}
// ---- VARIABLE(S) - PRIVATE --------------------------
private Cluster _cluster = null;
private ClusterRef _clusterRef = null;
private Domain _domain = null;
private ApplicationRegistry _appRegistry = null;
private static final String defaultLBPolicy =
"round-robin";
}