/**
* Copyright (C) 2008 - 2014 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* - Apache License, version 2.0
* - Apache Software License, version 1.0
* - GNU Lesser General Public License, version 3
* - Mozilla Public License, versions 1.0, 1.1 and 2.0
* - Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public
* icense version 2 and the aforementioned licenses.
*
* 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.
*/
package org.n52.ses.eml.v001.pattern;
import org.n52.ses.api.eml.ILogicController;
/**
* Representation of a reference to a pattern output.
*
* @author Thomas Everding
*
*/
public class PatternOutputReference {
private int selectFunctionNumber;
private String patternID;
private ILogicController controller;
private String newEventName = "";
/**
*
* Constructor
*
* @param selectFuncgtionNumber the select function number of the output
* @param patternID the ID of the pattern
* @param controller the logic controller to resolve the reference
*/
public PatternOutputReference(int selectFuncgtionNumber, String patternID, ILogicController controller) {
this.selectFunctionNumber = selectFuncgtionNumber;
this.patternID = patternID;
this.controller = controller;
}
/**
* @return the selectFunctionNumber
*/
public int getSelectFunctionNumber() {
return this.selectFunctionNumber;
}
/**
* @return the patternID
*/
public String getPatternID() {
return this.patternID;
}
/**
* @return the newEventName as resolved by the controller. may return an empty string if the reference cannot (yet) be resolved
*/
public String getNewEventName() {
if (this.newEventName.equals("") || this.newEventName.equals("null")) {
//resolve reference
this.newEventName = this.controller.getNewEventName(this.patternID, this.selectFunctionNumber);
//check result
if (this.newEventName.equals("null")) {
return "";
}
}
return this.newEventName;
}
}