DepositoryValuesServer.java
/**
* DepositoryValuesServer.java This file is part of WattDepot.
*
* Copyright (C) 2013 Yongwen Xu
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.wattdepot.server.http.api;
import java.text.ParseException;
import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.XMLGregorianCalendar;
import org.restlet.data.Status;
import org.restlet.resource.ResourceException;
import org.wattdepot.common.domainmodel.Depository;
import org.wattdepot.common.domainmodel.Labels;
import org.wattdepot.common.domainmodel.InterpolatedValue;
import org.wattdepot.common.domainmodel.InterpolatedValueList;
import org.wattdepot.common.domainmodel.Sensor;
import org.wattdepot.common.domainmodel.SensorGroup;
import org.wattdepot.common.exception.IdNotFoundException;
import org.wattdepot.common.exception.MisMatchedOwnerException;
import org.wattdepot.common.exception.NoMeasurementException;
import org.wattdepot.common.util.DateConvert;
import org.wattdepot.common.util.tstamp.Tstamp;
/**
* DepositoryValuesServer - Base class for handling the Depository values HTTP
* API ("/wattdepot/{org-id}/depository/{depository-id}/values/").
*
* @author Yongwen Xu
*
*/
public class DepositoryValuesServer extends WattDepotServerResource {
protected String depositoryId;
protected String sensorId;
protected String start;
protected String end;
protected String interval;
protected String dataType;
/*
* (non-Javadoc)
*
* @see org.restlet.resource.Resource#doInit()
*/
@Override
protected void doInit() throws ResourceException {
super.doInit();
this.sensorId = getQuery().getValues(Labels.SENSOR);
this.start = getQuery().getValues(Labels.START);
this.end = getQuery().getValues(Labels.END);
this.depositoryId = getAttribute(Labels.DEPOSITORY_ID);
this.interval = getQuery().getValues(Labels.INTERVAL);
this.dataType = getQuery().getValues(Labels.VALUE_TYPE);
}
/**
* retrieve the depository measurement list for a sensor.
*
* @return measurement list.
*/
public InterpolatedValueList doRetrieve() {
getLogger().log(
Level.INFO,
"GET /wattdepot/{" + orgId + "}/" + Labels.DEPOSITORY + "/{" + depositoryId + "}/"
+ Labels.VALUES + "/?" + Labels.SENSOR + "={" + sensorId + "}&" + Labels.START + "={"
+ start + "}&" + Labels.END + "={" + end + "}&" + Labels.INTERVAL + "={" + interval
+ "}&" + Labels.VALUE_TYPE + "={" + dataType + "}");
if (isInRole(orgId)) {
if (start != null && end != null && interval != null) {
InterpolatedValueList ret = new InterpolatedValueList();
try {
Depository depository = depot.getDepository(depositoryId, orgId, true);
if (depository != null) {
XMLGregorianCalendar startTime = DateConvert.parseCalString(start);
XMLGregorianCalendar endTime = DateConvert.parseCalString(end);
// interval is in minute
int intervalMinutes = Integer.parseInt(interval);
// Build list of timestamps, starting with startTime, separated by
// intervalMinutes
List<XMLGregorianCalendar> timestampList = Tstamp.getTimestampList(startTime, endTime,
intervalMinutes);
if (timestampList != null) {
Sensor sensor = depot.getSensor(sensorId, orgId, false);
if (sensor != null) {
Date previous = null;
for (int i = 0; i < timestampList.size(); i++) {
InterpolatedValue mValue;
Date timestamp = DateConvert.convertXMLCal(timestampList.get(i));
Double value = new Double(0);
if ("point".equals(dataType)) {
try {
value = depot.getValue(depositoryId, orgId, sensor.getId(), timestamp, true);
}
catch (NoMeasurementException e) { // NOPMD
// no measurements around the time so return 0?
}
mValue = new InterpolatedValue(sensor.getId(), value,
depository.getMeasurementType(), timestamp);
ret.getInterpolatedValues().add(mValue);
}
else {
if (previous != null) {
try {
value = depot.getValue(depositoryId, orgId, sensor.getId(), previous, timestamp, true);
}
catch (NoMeasurementException e) { // NOPMD
// No measurements so return 0,
}
mValue = new InterpolatedValue(sensor.getId(), value, depository.getMeasurementType(), previous, timestamp);
ret.getInterpolatedValues().add(mValue);
}
previous = timestamp;
}
}
}
else {
SensorGroup group = depot.getSensorGroup(sensorId, orgId, false);
if (group != null) {
Date previous = null;
for (int i = 0; i < timestampList.size(); i++) {
Date timestamp = DateConvert.convertXMLCal(timestampList.get(i));
Double value = new Double(0);
for (String s : group.getSensors()) {
Sensor sens = depot.getSensor(s, orgId, true);
if (sens != null) {
if ("point".equals(dataType)) {
try {
value += depot.getValue(depositoryId, orgId, sens.getId(), timestamp,
true);
}
catch (NoMeasurementException e) { // NOPMD
// No measurements so return 0;
}
}
else {
if (previous != null) {
try {
value += depot.getValue(depositoryId, orgId, sens.getId(),
previous, timestamp, true);
}
catch (NoMeasurementException e) { // NOPMD
// No measurements so return 0,
}
}
}
}
}
if ("point".equals(dataType)) {
InterpolatedValue mValue = new InterpolatedValue(group.getId(), value,
depository.getMeasurementType(), timestamp);
ret.getInterpolatedValues().add(mValue);
}
else {
if (previous != null) {
InterpolatedValue mValue = new InterpolatedValue(group.getId(), value,
depository.getMeasurementType(), previous, timestamp);
ret.getInterpolatedValues().add(mValue);
}
}
previous = timestamp;
}
}
}
}
else {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, "Bad start, end, or interval.");
return null;
}
}
else {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, depositoryId + " is not defined.");
return null;
}
}
catch (MisMatchedOwnerException e) {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, e.getMessage());
return null;
}
catch (ParseException e) {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, e.getMessage());
return null;
}
catch (DatatypeConfigurationException e) {
setStatus(Status.SERVER_ERROR_INTERNAL, e.getMessage());
return null;
}
catch (IdNotFoundException e) {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, e.getMessage());
return null;
}
getLogger().info(ret.toString());
return ret;
}
else {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, "Missing start and/or end times or interval.");
return null;
}
}
else {
setStatus(Status.CLIENT_ERROR_BAD_REQUEST, "Bad credentials.");
return null;
}
}
}