GetApplianceProps.java

package org.epics.archiverappliance.mgmt.policy;

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

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 various appliance properties as name/value constructs mostly for the UI.
 * @author mshankar
 *
 */
public class GetApplianceProps implements BPLAction {
	private static Logger logger = Logger.getLogger(GetApplianceProps.class.getName());
	@Override
	public void execute(HttpServletRequest req, HttpServletResponse resp, ConfigService configService) throws IOException {
		logger.debug("Getting appliance properties");
		HashMap<String, Object> props = new HashMap<String, Object>();
		resp.setContentType(MimeTypeConstants.APPLICATION_JSON);
		props.put("minimum_sampling_period", configService.getInstallationProperties().getProperty("org.epics.archiverappliance.mgmt.bpl.ArchivePVAction.minimumSamplingPeriod"));
		try (PrintWriter out = resp.getWriter()) {
			out.println(JSONValue.toJSONString(props));
		} catch(Exception ex) {
			logger.error("Exception getting list of appliance properties " + configService.getMyApplianceInfo().getIdentity(), ex);
			resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
		}
	}

}