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package org.glassfish.loadbalancer.admin.cli;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.List;
import java.beans.PropertyVetoException;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.*;
import org.jvnet.hk2.config.*;
import org.glassfish.api.Param;
import org.glassfish.api.ActionReport;
import com.sun.enterprise.util.LocalStringManagerImpl;
import org.glassfish.hk2.api.PerLookup;
import org.glassfish.internal.api.Target;
import com.sun.enterprise.config.serverbeans.ApplicationRef;
import com.sun.enterprise.config.serverbeans.ClusterRef;
import com.sun.enterprise.config.serverbeans.ServerRef;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.Cluster;
import org.glassfish.loadbalancer.config.LbConfigs;
import org.glassfish.loadbalancer.config.LbConfig;
import org.glassfish.loadbalancer.config.LoadBalancer;
import org.glassfish.loadbalancer.config.LoadBalancers;
import org.glassfish.api.I18n;
import org.glassfish.api.admin.*;
import org.glassfish.config.support.TargetType;
import org.glassfish.config.support.CommandTarget;
import jakarta.inject.Inject;
/**
*
* This is a remote command that supports the delete-http-lb-ref CLI command.
*
* @author Yamini K B
*/
@Service(name = "delete-http-lb-ref")
@PerLookup
@I18n("delete.http.lb.ref")
@TargetType(value={CommandTarget.STANDALONE_INSTANCE, CommandTarget.CLUSTER})
@org.glassfish.api.admin.ExecuteOn(RuntimeType.DAS)
@RestEndpoints({
@RestEndpoint(configBean=LbConfig.class,
opType=RestEndpoint.OpType.POST, // TODO: Should be DELETE
path="delete-http-lb-ref",
description="delete-http-lb-ref")
})
public final class DeleteHTTPLBRefCommand extends LBCommandsBase
implements AdminCommand {
@Param(optional=true)
String config;
@Param(optional=true)
String lbname;
@Param(optional=true, defaultValue = "false")
String force;
@Param(primary=true)
String target;
@Inject
Target tgt;
@Inject
Logger logger;
private ActionReport report;
final private static LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(CreateHTTPLBRefCommand.class);
@Override
public void execute(AdminCommandContext context) {
report = context.getActionReport();
report.setActionExitCode(ActionReport.ExitCode.SUCCESS);
boolean isCluster = tgt.isCluster(target);
if (logger.isLoggable(Level.FINE)) {
logger.fine("[LB-ADMIN] deleteLBRef called for target " + target);
}
if (config!=null && lbname!=null) {
String msg = localStrings.getLocalString("EitherConfigOrLBName",
"Either LB name or LB config name, not both");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
if (config==null && lbname==null) {
String msg = localStrings.getLocalString("SpecifyConfigOrLBName",
"Please specify either LB name or LB config name.");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
LbConfigs lbconfigs = domain.getExtensionByType(LbConfigs.class);
if (lbconfigs == null) {
String msg = localStrings.getLocalString("NoLbConfigsElement",
"Empty lb-configs");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
if (config != null) {
if (lbconfigs.getLbConfig(config) == null) {
String msg = localStrings.getLocalString("LbConfigDoesNotExist",
"Specified LB config {0} does not exist", config);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
} else if (lbname != null) {
LoadBalancers lbs = domain.getExtensionByType(LoadBalancers.class);
if (lbs == null) {
String msg = localStrings.getLocalString("NoLoadBalancersElement",
"No Load balancers defined.");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
LoadBalancer lb = lbs.getLoadBalancer(lbname);
if (lb == null) {
String msg = localStrings.getLocalString("LoadBalancerNotDefined",
"Load balancer [{0}] not found.", lbname);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
config = lb.getLbConfigName();
}
// target is a cluster
if (isCluster) {
deleteClusterFromLBConfig(lbconfigs, config, target);
String msg = localStrings.getLocalString("http_lb_admin.DeleteClusterFromConfig",
"Deleted cluster {0} from Lb", target, config);
logger.info(msg);
// target is a server
} else if (domain.isServer(target)) {
deleteServerFromLBConfig(lbconfigs, config, target);
String msg = localStrings.getLocalString("http_lb_admin.DeleteServerFromConfig",
"Deleted server {0} from Lb", target, config);
logger.info(msg);
} else {
String msg = localStrings.getLocalString("InvalidTarget", "Invalid target", target);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
}
private void deleteServerFromLBConfig(LbConfigs lbconfigs, String configName,String serverName) {
LbConfig lbConfig = lbconfigs.getLbConfig(configName);
ServerRef sRef = lbConfig.getRefByRef(ServerRef.class, serverName);
if (sRef == null) {
// does not exist, just return from here
String msg = localStrings.getLocalString("ServerNotDefined",
"Server {0} cannot be used as target", target);
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Server " + serverName +
" does not exist in any cluster in the domain");
}
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
if (!Boolean.parseBoolean(force)) {
if (Boolean.parseBoolean(sRef.getLbEnabled())) {
String msg = localStrings.getLocalString("ServerNeedsToBeDisabled",
"Server [{0}] needs to be disabled before it can be removed from the load balancer.",
serverName);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
// check if its applications are LB disabled.
Server s = domain.getServerNamed(serverName);
if (s == null ) {
String msg = localStrings.getLocalString("ServerNotDefined",
"Server {0} cannot be used as target", target);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
List appRefs = domain.getApplicationRefsInTarget(target);
if (appRefs == null) {
String msg = localStrings.getLocalString("AppRefsNotDefined",
"Application refs does not exist in server {0}", target);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
boolean appLbEnabled = false;
for(ApplicationRef aRef:appRefs) {
if(Boolean.parseBoolean(aRef.getLbEnabled())) {
appLbEnabled = true;
break;
}
}
if (appLbEnabled) {
String msg = localStrings.getLocalString("AppsNotDisabled",
"All referenced applications must be disabled in LB");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
}
removeServerRef(lbConfig, sRef);
}
private void deleteClusterFromLBConfig(LbConfigs lbconfigs, String configName, String clusterName) {
LbConfig lbConfig = lbconfigs.getLbConfig(configName);
ClusterRef cRef = lbConfig.getRefByRef(ClusterRef.class, clusterName);
if (cRef == null) {
// does not exist, just return from here
String msg = localStrings.getLocalString("ClusterNotDefined",
"Cluster {0} cannot be used as target", target);
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Cluster " + clusterName + " does not exist.");
}
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
if (!Boolean.parseBoolean(force)) {
Cluster c = domain.getClusterNamed(clusterName);
if ( c == null ) {
String msg = localStrings.getLocalString("ClusterNotDefined",
"Cluster {0} cannot be used as target", target);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
List sRefs = c.getServerRef();
boolean refLbEnabled = false;
for(ServerRef ref:sRefs) {
if(Boolean.parseBoolean(ref.getLbEnabled())) {
refLbEnabled = true;
}
}
if (refLbEnabled) {
String msg = localStrings.getLocalString("ServerNeedsToBeDisabled",
"Server [{0}] needs to be disabled before it can be removed from the load balancer.", target);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
}
removeClusterRef(lbConfig, cRef);
}
public void removeServerRef(final LbConfig lc, final ServerRef sRef) {
try {
ConfigSupport.apply(new SingleConfigCode() {
@Override
public Object run(LbConfig param) throws PropertyVetoException, TransactionFailure {
param.getClusterRefOrServerRef().remove(sRef);
return Boolean.TRUE;
}
}, lc);
} catch (TransactionFailure ex) {
String msg = localStrings.getLocalString("FailedToRemoveServerRef", "Failed to remove server-ref");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
report.setFailureCause(ex);
return;
}
}
public void removeClusterRef(final LbConfig lc, final ClusterRef cRef) {
try {
ConfigSupport.apply(new SingleConfigCode() {
@Override
public Object run(LbConfig param) throws PropertyVetoException, TransactionFailure {
param.getClusterRefOrServerRef().remove(cRef);
return Boolean.TRUE;
}
}, lc);
} catch (TransactionFailure ex) {
String msg = localStrings.getLocalString("FailedToRemoveClusterRef", "Failed to remove cluster-ref");
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
report.setFailureCause(ex);
return;
}
}
}
