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Micro Distribution of the Payara Project
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package org.glassfish.loadbalancer.admin.cli;
import com.sun.enterprise.config.serverbeans.*;
import java.util.logging.Logger;
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.api.admin.*;
import org.glassfish.config.support.TargetType;
import org.glassfish.config.support.CommandTarget;
import org.glassfish.hk2.api.PerLookup;
import jakarta.inject.Inject;
/**
* This is a remote command that disables lb-enabled attribute of an application
* for cluster or instance
* @author Yamini K B
*/
@Service(name = "disable-http-lb-application")
@PerLookup
@TargetType(value={CommandTarget.STANDALONE_INSTANCE, CommandTarget.CLUSTER})
@org.glassfish.api.admin.ExecuteOn(RuntimeType.DAS)
@RestEndpoints({
@RestEndpoint(configBean=Application.class,
opType=RestEndpoint.OpType.POST,
path="disable-http-lb-application",
description="disable-http-lb-application",
params={
@RestParam(name="name", value="$parent")
})
})
public final class DisableHTTPLBApplicationCommand implements AdminCommand {
@Param(primary=true)
String target;
@Param(optional=false)
String name;
@Param(optional=true, defaultValue="30")
String timeout;
@Inject
Domain domain;
final private static LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(DisableHTTPLBApplicationCommand.class);
@Override
public void execute(AdminCommandContext context) {
ActionReport report = context.getActionReport();
Logger logger = context.getLogger();
report.setActionExitCode(ActionReport.ExitCode.SUCCESS);
ApplicationRef appRef = domain.getApplicationRefInTarget(name, target);
if (appRef == null) {
String msg = localStrings.getLocalString("AppRefNotDefined",
"Application ref [{0}] does not exist in server [{1}]", name, target);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
return;
}
boolean appEnabled = Boolean.valueOf(appRef.getEnabled());
if (appEnabled) {
if (appRef.getLbEnabled().equals("false")) {
String msg = localStrings.getLocalString("AppDisabled",
"Application [{0}] is already disabled for [{1}].", name, target);
logger.warning(msg);
report.setMessage(msg);
} else {
try {
updateLbEnabledForApp(name, target, timeout);
} catch(TransactionFailure e) {
String msg = localStrings.getLocalString("FailedToUpdateAttr",
"Failed to update lb-enabled attribute for {0}", name);
logger.warning(msg);
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
report.setMessage(msg);
report.setFailureCause(e);
}
}
}
}
public void updateLbEnabledForApp(final String appName,
final String target, final String timeout) throws TransactionFailure {
ConfigSupport.apply(new SingleConfigCode() {
@Override
public Object run(ConfigBeanProxy param) throws PropertyVetoException, TransactionFailure {
// get the transaction
Transaction t = Transaction.getTransaction(param);
if (t!=null) {
Server servr = ((Domain)param).getServerNamed(target);
if (servr != null) {
// update the application-ref from standalone
// server instance
for (ApplicationRef appRef :
servr.getApplicationRef()) {
if (appRef.getRef().equals(appName)) {
ConfigBeanProxy appRef_w = t.enroll(appRef);
((ApplicationRef)appRef_w).setLbEnabled("false");
((ApplicationRef)appRef_w).setDisableTimeoutInMinutes(timeout);
break;
}
}
}
Cluster cluster = ((Domain)param).getClusterNamed(target);
if (cluster != null) {
// update the application-ref from cluster
for (ApplicationRef appRef :
cluster.getApplicationRef()) {
if (appRef.getRef().equals(appName)) {
ConfigBeanProxy appRef_w = t.enroll(appRef);
((ApplicationRef)appRef_w).setLbEnabled("false");
((ApplicationRef)appRef_w).setDisableTimeoutInMinutes(timeout);
break;
}
}
// update the application-ref from cluster instances
for (Server svr : cluster.getInstances() ) {
for (ApplicationRef appRef :
svr.getApplicationRef()) {
if (appRef.getRef().equals(appName)) {
ConfigBeanProxy appRef_w = t.enroll(appRef);
((ApplicationRef)appRef_w).setLbEnabled("false");
((ApplicationRef)appRef_w).setDisableTimeoutInMinutes(timeout);
break;
}
}
}
}
}
return Boolean.TRUE;
}
}, domain);
}
}