GetPausedPVsForThisAppliance.java

package org.epics.archiverappliance.mgmt.bpl;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.LinkedList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.epics.archiverappliance.common.BPLAction;
import org.epics.archiverappliance.config.ConfigService;
import org.epics.archiverappliance.utils.ui.MimeTypeConstants;
import org.json.simple.JSONValue;

/**
 * Get a list of PVs for this appliance that are paused as a JSON array
 * @author mshankar
 *
 */
public class GetPausedPVsForThisAppliance implements BPLAction {
	private static Logger logger = Logger.getLogger(GetPausedPVsForThisAppliance.class.getName());

	@Override
	public void execute(HttpServletRequest req, HttpServletResponse resp, ConfigService configService) throws IOException {
		logger.debug("Getting paused pvs for appliance " + configService.getMyApplianceInfo().getIdentity());
		LinkedList<String> pausedPVSForThisAppliance = new LinkedList<String>();
		for(String pvName : configService.getPausedPVsInThisAppliance()) {
			pausedPVSForThisAppliance.add(pvName);
		}
		resp.setContentType(MimeTypeConstants.APPLICATION_JSON);
		try (PrintWriter out = resp.getWriter()) {
			out.println(JSONValue.toJSONString(pausedPVSForThisAppliance));
		} catch(Exception ex) {
			logger.error("Exception getting paused pvs for appliance " + configService.getMyApplianceInfo().getIdentity(), ex);
			resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
		}
	}

}