public Object doExecute()

in config/src/main/java/org/apache/karaf/cellar/config/shell/BlockCommand.java [56:132]
70 lines of code
20 McCabe index (conditional complexity)

    public Object doExecute() throws Exception {

        Group group = groupManager.findGroupByName(groupName);
        if (group == null) {
            System.err.println("Cluster group " + groupName + " doesn't exist");
            return null;
        }

        CellarSupport support = new CellarSupport();
        support.setClusterManager(clusterManager);
        support.setGroupManager(groupManager);
        support.setConfigurationAdmin(configurationAdmin);

        if (!in && !out) {
            in = true;
            out = true;
        }
        if (!whitelist && !blacklist) {
            whitelist = true;
            blacklist = true;
        }

        if (pid == null || pid.isEmpty()) {
            // display mode
            if (in) {
                System.out.println("INBOUND:");
                if (whitelist) {
                    System.out.print("\twhitelist: ");
                    Set<String> list = support.getListEntries(Configurations.WHITELIST, groupName, Constants.CATEGORY, EventType.INBOUND);
                    System.out.println(list.toString());
                }
                if (blacklist) {
                    System.out.print("\tblacklist: ");
                    Set<String> list = support.getListEntries(Configurations.BLACKLIST, groupName, Constants.CATEGORY, EventType.INBOUND);
                    System.out.println(list.toString());
                }
            }
            if (out) {
                System.out.println("OUTBOUND:");
                if (whitelist) {
                    System.out.print("\twhitelist: ");
                    Set<String> list = support.getListEntries(Configurations.WHITELIST, groupName, Constants.CATEGORY, EventType.OUTBOUND);
                    System.out.println(list.toString());
                }
                if (blacklist) {
                    System.out.print("\tblacklist: ");
                    Set<String> list = support.getListEntries(Configurations.BLACKLIST, groupName, Constants.CATEGORY, EventType.OUTBOUND);
                    System.out.println(list.toString());
                }
            }
        } else {
            // edit mode
            System.out.println("Updating blocking policy for " + pid);
            if (in) {
                if (whitelist) {
                    System.out.println("\tinbound whitelist ...");
                    support.switchListEntry(Configurations.WHITELIST, groupName, Constants.CATEGORY, EventType.INBOUND, pid);
                }
                if (blacklist) {
                    System.out.println("\tinbound blacklist ...");
                    support.switchListEntry(Configurations.BLACKLIST, groupName, Constants.CATEGORY, EventType.INBOUND, pid);
                }
            }
            if (out) {
                if (whitelist) {
                    System.out.println("\toutbound whitelist ...");
                    support.switchListEntry(Configurations.WHITELIST, groupName, Constants.CATEGORY, EventType.OUTBOUND, pid);
                }
                if (blacklist) {
                    System.out.println("\toutbound blacklist ...");
                    support.switchListEntry(Configurations.BLACKLIST, groupName, Constants.CATEGORY, EventType.OUTBOUND, pid);
                }
            }
        }

        return null;
    }