GetDateValueTask.java
/**
* GetDateValueTask.java This file is part of WattDepot.
*
* Copyright (C) 2014 Cam Moore
*
* 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.client.http.api.performance;
import java.util.Date;
import org.wattdepot.common.exception.BadCredentialException;
import org.wattdepot.common.exception.BadSensorUriException;
import org.wattdepot.common.exception.IdNotFoundException;
import org.wattdepot.common.exception.NoMeasurementException;
/**
* GetDateValueTask gets the value at a given date from the WattDepot Server.
*
* @author Cam Moore
*
*/
public class GetDateValueTask extends PerformanceTimedTask {
/** The time of the value to retrieve. */
private Date timestamp;
/**
* Initializes the GetDateValueTask.
*
* @param serverUri The URI for the WattDepot server.
* @param username The name of a user defined in the WattDepot server.
* @param orgId the id of the organization the user is in.
* @param password The password for the user.
* @param debug flag for debugging messages.
* @throws BadCredentialException if the user or password don't match the
* credentials in WattDepot.
* @throws IdNotFoundException if the processId is not defined.
* @throws BadSensorUriException if the Sensor's URI isn't valid.
*/
public GetDateValueTask(String serverUri, String username, String orgId, String password,
boolean debug) throws BadCredentialException, IdNotFoundException, BadSensorUriException {
super(serverUri, username, orgId, password, debug);
Date latest = client.getLatestValue(depository, sensor).getEnd();
Date earliest = client.getEarliestValue(depository, sensor).getStart();
this.timestamp = new Date((latest.getTime() + earliest.getTime()) / 2);
}
/* (non-Javadoc)
* @see org.wattdepot.client.http.api.performance.PerformanceTimedTask#clientTask()
*/
@Override
public void clientTask() {
try {
this.client.getValue(depository, sensor, timestamp);
}
catch (NoMeasurementException nme) {
nme.printStackTrace();
}
}
}