Examples of org.jvnet.hk2.config.Transaction

org.jvnet.hk2.config.Transaction
Simple transaction mechanism for config-api objects @author Jerome Dochez


    public void registerTenantWithAppInDomainXML(
            final String appName,
            final ExtendedDeploymentContext context) throws TransactionFailure {


        final Transaction t = new Transaction();
        try {
            final AppTenant appTenant_w = writeableTenantForApp(
                    appName,
                    t);
            appTenant_w.setContextRoot(context.getAppProps().getProperty(ServerTags.CONTEXT_ROOT));
            appTenant_w.setTenant(context.getTenant());


            t.commit();
        } catch (TransactionFailure ex) {
            t.rollback();
            throw ex;
        } catch (Throwable ex) {
            t.rollback();
            throw new TransactionFailure(ex.getLocalizedMessage(), ex);
        }
    }

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        final AppTenants appTenants = app.getAppTenants();
        final AppTenant appTenant = appTenants.getAppTenant(tenantName);
        if (appTenant == null) {
            throw new IllegalArgumentException("Tenant " + tenantName + " not provisioned for application " + appName);
        }
        Transaction t = new Transaction();
        final AppTenants appTenants_w = t.enroll(appTenants);
        appTenants_w.getAppTenant().remove(appTenant);
        t.commit();
    }

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        final String tgt, final boolean appRefOnly) 
        throws TransactionFailure {
        ConfigSupport.apply(new SingleConfigCode() {
            public Object run(ConfigBeanProxy param) throws PropertyVetoException, TransactionFailure {
                // get the transaction
                Transaction t = Transaction.getTransaction(param);
                if (t!=null) {
                    List<String> targets = new ArrayList<String>();
                    if (!DeploymentUtils.isDomainTarget(tgt)) {
                        targets.add(tgt);    
                    } else {
                        targets = domain.getAllReferencedTargetsForApplication(appName);
                    }


                    Domain dmn;
                    if (param instanceof Domain) {
                        dmn = (Domain)param;
                    } else {
                        return Boolean.FALSE;
                    }


                    for (String target : targets) {
                        Server servr = dmn.getServerNamed(target);
                        if (servr != null) {
                            // remove the application-ref from standalone 
                            // server instance
                            ConfigBeanProxy servr_w = t.enroll(servr);
                            for (ApplicationRef appRef : 
                                servr.getApplicationRef()) {
                                if (appRef.getRef().equals(appName)) {
                                    ((Server)servr_w).getApplicationRef().remove(
                                        appRef);
                                    break;
                                }
                            }
                        }
              
                        Cluster cluster = dmn.getClusterNamed(target);
                        if (cluster != null) {
                            // remove the application-ref from cluster
                            ConfigBeanProxy cluster_w = t.enroll(cluster);
                            for (ApplicationRef appRef : 
                                cluster.getApplicationRef()) {
                                if (appRef.getRef().equals(appName)) {
                                    ((Cluster)cluster_w).getApplicationRef().remove(
                                            appRef);
                                        break;
                                }
                            }


                            // remove the application-ref from cluster instances
                            for (Server svr : cluster.getInstances() ) {
                                ConfigBeanProxy svr_w = t.enroll(svr);
                                for (ApplicationRef appRef : 
                                    svr.getApplicationRef()) {
                                    if (appRef.getRef().equals(appName)) {
                                        ((Server)svr_w).getApplicationRef(
                                           ).remove(appRef);
                                        break;
                                    }
                                }
                            }
                        }
                    }


                    if (!appRefOnly) {
                        // remove application element
                        Applications apps = dmn.getApplications();
                        ConfigBeanProxy apps_w = t.enroll(apps);
                        for (ApplicationName module : apps.getModules()) {
                            if (module.getName().equals(appName)) {
                                ((Applications)apps_w).getModules().remove(module);
                                break;
                            }

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    public void updateAppEnabledAttributeInDomainXML(final String appName,
        final String target, final boolean enabled) throws TransactionFailure {
        ConfigSupport.apply(new SingleConfigCode() {
            public Object run(ConfigBeanProxy param) throws PropertyVetoException, TransactionFailure {
                // get the transaction
                Transaction t = Transaction.getTransaction(param);
                if (t!=null) {
                    Domain dmn;
                    if (param instanceof Domain) {
                        dmn = (Domain)param;
                    } else {
                        return Boolean.FALSE;
                    }


                    if (enabled || DeploymentUtils.isDomainTarget(target)) {
                        Application app = dmn.getApplications().getApplication(appName);
                        ConfigBeanProxy app_w = t.enroll(app);
                       ((Application)app_w).setEnabled(String.valueOf(enabled));


                    }


                    List<String> targets = new ArrayList<String>();
                    if (!DeploymentUtils.isDomainTarget(target)) {
                        targets.add(target);
                    } else {
                        targets = domain.getAllReferencedTargetsForApplication(appName);
                    }


                    for (String target : targets) {
                        Server servr = dmn.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).setEnabled(String.valueOf(enabled));
                                    break;
                                }
                            }
                            updateClusterAppRefWithInstanceUpdate(t, servr, appName, enabled);
                        }
                        Cluster cluster = dmn.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).setEnabled(String.valueOf(enabled));
                                    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).setEnabled(String.valueOf(enabled));
                                        break;
                                    }
                                }
                            }

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    private Properties startupArgs = null;
    
    
    final protected Transaction transaction() {
        if (t == null) {
            t = new Transaction();
        }
        return t;
    }

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        ConfigSupport.apply(new SingleConfigCode<Domain>() {
            @Override
            public Object run(Domain domain_w) throws PropertyVetoException, TransactionFailure {


                // get the transaction
                final Transaction t = Transaction.getTransaction(domain_w);
                final TopLevelContext topLevelContext = 
                        new TopLevelContext(t, domain_w);
                if (t!=null) {


                    /*
                     * Do the work on just the secure-admin element.
                     */
                    for (Iterator<Work<TopLevelContext>> it = secureAdminSteps(); it.hasNext();) {
                        final Work<TopLevelContext> step = it.next();
                        if ( ! step.run(topLevelContext) ) {
                            t.rollback();
                            return Boolean.FALSE;
                        }
                    }


                    /*
                     * Now apply the required changes to the admin listener
                     * in the configurations.  Include all configs, because even
                     * though the non-DAS configs default to use SSL the user
                     * might have specified a different alias to use and that 
                     * value must be set in the SSL element for the 
                     * secure admin listener.
                     */
                    final Configs configs = domain_w.getConfigs();
                    for (Config c : configs.getConfig()) {
                        final Config c_w = t.enroll(c);
                        ConfigLevelContext configLevelContext = 
                                new ConfigLevelContext(topLevelContext, c_w);
                        for (Iterator<Work<ConfigLevelContext>> it = perConfigSteps(); it.hasNext();) {
                            final Work<ConfigLevelContext> step = it.next();
                            if ( ! step.run(configLevelContext)) {
                                t.rollback();
                                return Boolean.FALSE;
                            }
                        }
                    }
                }

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            appProps.setProperty(ServerTags.OBJECT_TYPE, "user");
            appProps.setProperty(ServerTags.CONTEXT_ROOT, contextRoot);


            savedAppConfig.store(appProps);


            Transaction t = deployment.prepareAppConfigChanges(deploymentContext);
            appInfo = deployment.deploy(deploymentContext);


            if (appInfo!=null) {
                facade.setAppName(appInfo.getName());
                if (_logger.isLoggable(Level.FINE)) {

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    }


    static private class GroupManagementServiceConfigCode implements SingleConfigCode<Config> {
        public Object run(Config config) throws PropertyVetoException, TransactionFailure {
            GroupManagementService gms = config.getGroupManagementService();
            Transaction t = Transaction.getTransaction(config);
            gms = t.enroll(gms);
            String value = gms.getPingProtocolTimeoutInMillis();
            if (value != null) {
                try {
                    gms.setGroupDiscoveryTimeoutInMillis(value);
                } catch (Throwable re) {
                    // catch RuntimeException hk2 ValidationException. if v2 value is not valid for v3, just rely on v3 default
                }
                gms.setPingProtocolTimeoutInMillis(null);
            } // else null for server-config


            FailureDetection fd = gms.getFailureDetection();
            fd = t.enroll(fd);
            value = gms.getFdProtocolTimeoutInMillis();
            if (value != null){
                try {
                    fd.setHeartbeatFrequencyInMillis(value);
                } catch (Throwable re) {

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            deploymentContext.addTransientAppMetaData(DeploymentProperties.PREVIOUS_TARGETS, previousTargets);
            deploymentContext.addTransientAppMetaData(DeploymentProperties.PREVIOUS_VIRTUAL_SERVERS, previousVirtualServers);
            deploymentContext.addTransientAppMetaData(DeploymentProperties.PREVIOUS_ENABLED_ATTRIBUTES, previousEnabledAttributes);


            Transaction t = deployment.prepareAppConfigChanges(deploymentContext);
            if (tracing!=null) {
                tracing.addMark(DeploymentTracing.Mark.DEPLOY);
            }
            ApplicationInfo appInfo;
            appInfo = deployment.deploy(deploymentContext);

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            deploymentContext.addTransientAppMetaData(DeploymentProperties.PREVIOUS_TARGETS, previousTargets);
            deploymentContext.addTransientAppMetaData(DeploymentProperties.PREVIOUS_VIRTUAL_SERVERS, previousVirtualServers);
            deploymentContext.addTransientAppMetaData(DeploymentProperties.PREVIOUS_ENABLED_ATTRIBUTES, previousEnabledAttributes);


            Transaction t = deployment.prepareAppConfigChanges(deploymentContext);
            if (tracing!=null) {
                tracing.addMark(DeploymentTracing.Mark.DEPLOY);
            }
            ApplicationInfo appInfo;
            if (type==null) {

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