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A DSL modelled around the UNIX pipe concept, that simplifies writing parallel and scalable pipelines in a portable manner(forked from nextflow.io)

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/*
 * Copyright 2013-2019, Centre for Genomic Regulation (CRG)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package nextflow.daemon

import groovy.util.logging.Slf4j
import nextflow.cli.CmdInfo
import nextflow.scheduler.SchedulerAgent
import nextflow.util.ServiceName
import sun.misc.Signal
import sun.misc.SignalHandler
import static nextflow.Const.ROLE_WORKER
/**
 * Launch the Ignite daemon
 *
 * @author Paolo Di Tommaso 
 */

@Slf4j
@ServiceName('ignite')
class IgDaemon implements DaemonLauncher {

    @Override
    void launch(Map config) {
        log.info "Configuring Apache Ignite cluster daemon"
        def info = CmdInfo.status( log.isTraceEnabled() )
        log.debug( '\n'+info )


        /*
         * Launch grid instance
         */
        def factory = new IgGridFactory(ROLE_WORKER, config)
        final grid = factory.start()

        /*
         * Scheduler agent
         */
        final agent = new SchedulerAgent(grid, factory.clusterConfig).run()

        final handler = { log.info "System terminated -- Stopping daemon.."; agent.close(true) } as SignalHandler
        Signal.handle(new Signal("INT"), handler);
        Signal.handle(new Signal("TERM"), handler);
        Signal.handle(new Signal("HUP"), handler);

    }


}