FrancoMelandri / commands-chainer

commands-chainer

DSL to create a chain of commands.

The CommandExecutor class take in charge the command creation and execution.

The CommandsChainGuard allows you to enable/disable a flow of commands.

1. Execute commands

        CommandsChain
                .create()
                .using(executor)
                .flow()
                    .command(TestCommand1.class)
                    .command(TestCommand2.class)
                .then()
                    .execute();

2. Execute child commands with guard

        CommandsChain
                .create()
                .using(executor)
                .flow()
                    .command(TestCommand1.class)
                    .on(guard)
                        .command(TestCommand2.class)
                    .end()
                    .command(TestCommand3.class)
                .then()
                    .execute();

the TestCommand2 will be executed only if guard callback return true.

3. Execute recursive child commands with guard

        CommandsChain
                .create()
                .using(executor)
                .flow()
                    .command(TestCommand1.class)
                    .on(guard)
                       .command(TestCommand2.class)
                       .on(childGuard)
                           .command(TestCommand3.class)
                       .end()
                    .end()
                    .command(TestCommand4.class)
                .then()
                    .execute();

the TestCommand3 will be executed only if guard and childGuard callbacks returns true.