public boolean exec()

in zookeeper-server/src/main/java/org/apache/zookeeper/cli/CreateCommand.java [71:139]
66 lines of code
26 McCabe index (conditional complexity)

    public boolean exec() throws CliException {
        boolean hasE = cl.hasOption("e");
        boolean hasS = cl.hasOption("s");
        boolean hasC = cl.hasOption("c");
        boolean hasT = cl.hasOption("t");
        if (hasC && (hasE || hasS)) {
            throw new MalformedCommandException("-c cannot be combined with -s or -e. Containers cannot be ephemeral or sequential.");
        }
        long ttl;
        try {
            ttl = hasT ? Long.parseLong(cl.getOptionValue("t")) : 0;
        } catch (NumberFormatException e) {
            throw new MalformedCommandException("-t argument must be a long value");
        }

        if (hasT && hasE) {
            throw new MalformedCommandException("TTLs cannot be used with Ephemeral znodes");
        }
        if (hasT && hasC) {
            throw new MalformedCommandException("TTLs cannot be used with Container znodes");
        }

        CreateMode flags;
        if (hasE && hasS) {
            flags = CreateMode.EPHEMERAL_SEQUENTIAL;
        } else if (hasE) {
            flags = CreateMode.EPHEMERAL;
        } else if (hasS) {
            flags = hasT ? CreateMode.PERSISTENT_SEQUENTIAL_WITH_TTL : CreateMode.PERSISTENT_SEQUENTIAL;
        } else if (hasC) {
            flags = CreateMode.CONTAINER;
        } else {
            flags = hasT ? CreateMode.PERSISTENT_WITH_TTL : CreateMode.PERSISTENT;
        }
        if (hasT) {
            try {
                EphemeralType.TTL.toEphemeralOwner(ttl);
            } catch (IllegalArgumentException e) {
                throw new MalformedCommandException(e.getMessage());
            }
        }

        String path = args[1];
        byte[] data = null;
        if (args.length > 2) {
            data = args[2].getBytes(UTF_8);
        }
        List<ACL> acl = ZooDefs.Ids.OPEN_ACL_UNSAFE;
        if (args.length > 3) {
            acl = AclParser.parse(args[3]);
        }
        try {
            String newPath = hasT
                ? zk.create(path, data, acl, flags, new Stat(), ttl)
                : zk.create(path, data, acl, flags);
            err.println("Created " + newPath);
        } catch (IllegalArgumentException ex) {
            throw new MalformedPathException(ex.getMessage());
        } catch (KeeperException.EphemeralOnLocalSessionException e) {
            err.println("Unable to create ephemeral node on a local session");
            throw new CliWrapperException(e);
        } catch (KeeperException.InvalidACLException ex) {
            err.println(ex.getMessage());
            throw new CliWrapperException(ex);
        } catch (KeeperException | InterruptedException ex) {
            throw new CliWrapperException(ex);
        }
        return true;
    }