StreamTcCommandReleaser.java

package org.yamcs;

import java.util.Map;

import org.yamcs.ConfigurationException;
import org.yamcs.cmdhistory.CommandHistoryPublisher;
import org.yamcs.commanding.CommandReleaser;
import org.yamcs.commanding.PreparedCommand;
import org.yamcs.yarch.Stream;
import org.yamcs.yarch.YarchDatabase;

import com.google.common.util.concurrent.AbstractService;
/**
 * Sends commands to yamcs streams
 * @author nm
 *
 */
public class StreamTcCommandReleaser extends AbstractService implements CommandReleaser {
    Stream stream;
    String streamName;
    String yamcsInstance; 

    volatile long sentTcCount;

    public StreamTcCommandReleaser(String yamcsInstance, Map<String, String> config) throws ConfigurationException {
	this.yamcsInstance = yamcsInstance;
	if(!config.containsKey("stream")) {
	    throw new ConfigurationException("Please specify the stream in the config (args)");
	}
	this.streamName = config.get("stream");
    }

    @Override
    public void releaseCommand(PreparedCommand pc) {
	stream.emitTuple(pc.toTuple());
	sentTcCount++;
    }

    @Override
    protected void doStart() {
	YarchDatabase ydb = YarchDatabase.getInstance(yamcsInstance);
	stream = ydb.getStream(streamName);
	if(stream==null) {
	    ConfigurationException e = new ConfigurationException("Cannot find stream '"+streamName+"'");
	    notifyFailed(e);
	} else {
	    notifyStarted();
	}
    }


    @Override
    public void setCommandHistory(CommandHistoryPublisher commandHistoryListener) {

    }

    @Override
    protected void doStop() {
	notifyStopped();
    }


}