EnableCommand.java

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 * obtain a copy of the License at
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package org.glassfish.deployment.admin;

import com.sun.enterprise.deploy.shared.ArchiveFactory;
import java.util.ArrayList;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.ExecuteOn;
import org.glassfish.api.admin.RuntimeType;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.admin.ParameterMap;
import org.glassfish.api.admin.FailurePolicy;
import org.glassfish.api.deployment.StateCommandParameters;
import org.glassfish.api.deployment.OpsParams;
import org.glassfish.config.support.TargetType;
import org.glassfish.config.support.CommandTarget;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.admin.util.ClusterOperationUtil;
import java.util.Collection;
import org.glassfish.api.ActionReport;
import org.glassfish.api.I18n;
import org.glassfish.internal.deployment.Deployment;
import org.glassfish.common.util.admin.ParameterMapExtractor;
import org.glassfish.internal.deployment.ExtendedDeploymentContext;
import org.glassfish.internal.deployment.DeploymentTargetResolver;
import javax.inject.Inject;
import javax.inject.Named;

import org.jvnet.hk2.annotations.Service;

import org.glassfish.hk2.api.PerLookup;
import org.glassfish.hk2.api.ServiceLocator;
import org.jvnet.hk2.config.TransactionFailure;

import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.List;
import java.util.Collections;
import org.glassfish.api.admin.AccessRequired.AccessCheck;
import org.glassfish.api.admin.AdminCommandSecurity;
import org.glassfish.api.admin.RestEndpoint;
import org.glassfish.api.admin.RestEndpoints;
import org.glassfish.api.admin.RestParam;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.deployment.common.DeploymentUtils;
import org.glassfish.deployment.versioning.VersioningSyntaxException;

import org.glassfish.deployment.versioning.VersioningService;
import org.glassfish.internal.deployment.ExtendedDeploymentContext.Phase;

/**
 * Enable command
 */
@Service(name="enable")
@I18n("enable.command")
@ExecuteOn(value={RuntimeType.DAS, RuntimeType.INSTANCE})
@PerLookup
@TargetType(value={CommandTarget.DOMAIN, CommandTarget.DAS, CommandTarget.STANDALONE_INSTANCE, CommandTarget.CLUSTER, CommandTarget.CLUSTERED_INSTANCE})
@RestEndpoints({
    @RestEndpoint(configBean=Application.class,
        opType=RestEndpoint.OpType.POST, 
        path="enable", 
        description="enable",
        params={
            @RestParam(name="id", value="$parent")
        })
})
public class EnableCommand extends StateCommandParameters implements AdminCommand, 
        DeploymentTargetResolver, AdminCommandSecurity.Preauthorization, AdminCommandSecurity.AccessCheckProvider {

    final private static LocalStringManagerImpl localStrings = new LocalStringManagerImpl(EnableCommand.class);
    
    final static String ENABLE_ACTION = "enable";

    @Inject
    Deployment deployment;

    @Inject
    ServiceLocator habitat;

    @Inject
    Domain domain;

    @Inject
    ServerEnvironment env;

    @Inject
    Applications applications;

    @Inject @Named(ServerEnvironment.DEFAULT_INSTANCE_NAME)
    protected Server server;

    @Inject
    VersioningService versioningService;
    
    @Inject
    ArchiveFactory archiveFactory;

    private ActionReport report;
    private Logger logger;
    private List<AccessCheck> accessChecks;

        
    @Override
    public boolean preAuthorization(AdminCommandContext context) {
        report = context.getActionReport();
        logger = context.getLogger();
        if (target == null) {
            target = deployment.getDefaultTarget(name(), OpsParams.Origin.load, _classicstyle);
        }
        return true;
    }

    @Override
    public Collection<? extends AccessCheck> getAccessChecks() {
        accessChecks = new ArrayList<AccessCheck>();
        if (!DeploymentUtils.isDomainTarget(target)) {
            
            ApplicationRef applicationRef = domain.getApplicationRefInTarget(name(), target);
            if (applicationRef != null && ! Boolean.getBoolean(applicationRef.getEnabled())) {
                accessChecks.add(new AccessCheck(applicationRef, ENABLE_ACTION, true));
            }
        } else {
            /*
             * The target is "domain" so expand that to all places where the
             * app is assigned.
             */
            for (String t : domain.getAllReferencedTargetsForApplication(target)) {
                final ApplicationRef applicationRef = domain.getApplicationRefInTarget(name(), t);
                if (applicationRef != null && ! Boolean.getBoolean(applicationRef.getEnabled())) {
                    accessChecks.add(new AccessCheck(applicationRef, ENABLE_ACTION, true));
                }
            }
        }
        /*
         * Add an access check for enabling the app itself.
         */
        final String resourceForApp = DeploymentCommandUtils.getResourceNameForExistingApp(domain, name());
        if (resourceForApp != null) {
            accessChecks.add(new AccessCheck(resourceForApp, ENABLE_ACTION));
        }
        return accessChecks;
    }

    /**
     * Entry point from the framework into the command execution
     * @param context context for the command.
     */
    public void execute(AdminCommandContext context) {
        deployment.validateSpecifiedTarget(target);
        InterceptorNotifier notifier = new InterceptorNotifier(habitat, null);
        DeployCommandSupplementalInfo suppInfo = new DeployCommandSupplementalInfo();
        suppInfo.setDeploymentContext(notifier.dc());
        suppInfo.setAccessChecks(accessChecks);
        report.setResultType(DeployCommandSupplementalInfo.class, suppInfo);

        if (!deployment.isRegistered(name())) {
            report.setMessage(localStrings.getLocalString("application.notreg","Application {0} not registered", name()));
            report.setActionExitCode(ActionReport.ExitCode.FAILURE);
            return;
        }

        if (!DeploymentUtils.isDomainTarget(target)) {
            ApplicationRef applicationRef = domain.getApplicationRefInTarget(name(), target);
            if (applicationRef == null) {
                report.setMessage(localStrings.getLocalString("ref.not.referenced.target","Application {0} is not referenced by target {1}", name(), target));
                report.setActionExitCode(ActionReport.ExitCode.FAILURE);
                return;
            }
        }

        // return if the application is already in enabled state
        if (domain.isAppEnabledInTarget(name(), target)) {
            logger.fine("The application is already enabled");
            return;
        }

        if (env.isDas()) {
            // try to disable the enabled version, if exist
            try {
                versioningService.handleDisable(name(),target, report, context.getSubject());
            } catch (VersioningSyntaxException e) {
                report.failure(logger, e.getMessage());
                return;
            }
            if (DeploymentUtils.isDomainTarget(target)) {
                List<String> targets = domain.getAllReferencedTargetsForApplication(name());
                // replicate command to all referenced targets
                try {
                    ParameterMapExtractor extractor = new ParameterMapExtractor(this);
                    ParameterMap paramMap = extractor.extract(Collections.EMPTY_LIST);
                    paramMap.set("DEFAULT", name());

                    notifier.ensureBeforeReported(Phase.REPLICATION);
                    ClusterOperationUtil.replicateCommand("enable", FailurePolicy.Error, FailurePolicy.Warn, 
                            FailurePolicy.Ignore, targets, context, paramMap, habitat);
                } catch (Exception e) {
                    report.failure(logger, e.getMessage());
                    return;
                }
            }

            /*
             * If the target is a cluster instance, the DAS will broadcast the command
             * to all instances in the cluster so they can all update their configs.
             */

            try {
                notifier.ensureBeforeReported(Phase.REPLICATION);
                DeploymentCommandUtils.replicateEnableDisableToContainingCluster(
                        "enable", domain, target, name(), habitat, context, this);
            } catch (Exception e) {
                report.failure(logger, e.getMessage());
                return;
            }
        }

        try {
            Application app = applications.getApplication(name()); 
            ApplicationRef appRef = domain.getApplicationRefInServer(server.getName(), name());

            DeploymentContext dc = deployment.enable(target, app, appRef, report, logger);
            suppInfo.setDeploymentContext((ExtendedDeploymentContext)dc);

            if (!report.getActionExitCode().equals(ActionReport.ExitCode.FAILURE)) {
                // update the domain.xml
                try {
                    deployment.updateAppEnabledAttributeInDomainXML(name(), target, true);
                } catch(TransactionFailure e) {
                    logger.log(Level.WARNING, "failed to set enable attribute for " + name(), e);
                }
            }
        } catch(Exception e) {
            logger.log(Level.SEVERE, "Error during enabling: ", e);
            report.setActionExitCode(ActionReport.ExitCode.FAILURE);
            report.setMessage(e.getMessage());
        } 
    }        

    public String getTarget(ParameterMap parameters) {
        return DeploymentCommandUtils.getTarget(parameters, OpsParams.Origin.load, deployment);
    }
}