/*******************************************************************************
* Copyright (c) 2011 The Board of Trustees of the Leland Stanford Junior University
* as Operator of the SLAC National Accelerator Laboratory.
* Copyright (c) 2011 Brookhaven National Laboratory.
* EPICS archiver appliance is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
*******************************************************************************/
package org.epics.archiverappliance.mgmt.bpl.reports;
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.ApplianceInfo;
import org.epics.archiverappliance.config.ConfigService;
import org.epics.archiverappliance.utils.ui.GetUrlContent;
import org.epics.archiverappliance.utils.ui.MimeTypeConstants;
import org.json.simple.JSONArray;
import org.json.simple.JSONValue;
/**
* All the waveforms that are currently being archived.
*
* @epics.BPLAction - Get a list of waveform PVs that are currently being archived.
* @epics.BPLActionEnd
*
* @author mshankar
*
*/
public class WaveformPVsAction implements BPLAction {
private static final Logger logger = Logger.getLogger(WaveformPVsAction.class);
@Override
public void execute(HttpServletRequest req, HttpServletResponse resp, ConfigService configService) throws IOException {
logger.info("Getting a list of waveform PVs for this cluster");
resp.setContentType(MimeTypeConstants.APPLICATION_JSON);
LinkedList<String> waveFormURLs = new LinkedList<String>();
for(ApplianceInfo info : configService.getAppliancesInCluster()) {
waveFormURLs.add(info.getEngineURL() + "/getArchivedWaveforms");
}
try (PrintWriter out = resp.getWriter()) {
JSONArray neverConnPVs = GetUrlContent.combineJSONArrays(waveFormURLs);
out.println(JSONValue.toJSONString(neverConnPVs));
}
}
}