imag/imag-counter/src/create.rs

//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//

use std::str::FromStr;

use libimagrt::runtime::Runtime;
use libimagerror::trace::trace_error_exit;
use libimagcounter::counter::Counter;
use libimagcounter::counter::CounterUnit;

pub fn create(rt: &Runtime) {
    rt.cli()
        .subcommand_matches("create")
        .map(|scmd| {
            debug!("Found 'create' subcommand...");

            let name = scmd.value_of("name").unwrap(); // safe because clap enforces
            let init : i64 = scmd
                .value_of("initval")
                .and_then(|i| FromStr::from_str(i).ok())
                .unwrap_or(0);

            let unit = scmd
                .value_of("unit")
                .map(CounterUnit::new); 

            Counter::new(rt.store(), String::from(name), init)
                .and_then(|c| c.with_unit(unit))
                .unwrap_or_else(|e| {
                    warn!("Could not create Counter '{}' with initial value '{}'", name, init);
                    trace_error_exit(&e, 1);
                });
        });
}