135 lines
3.4 KiB
Java
135 lines
3.4 KiB
Java
//This file is part of SECONDO.
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//Copyright (C) 2004, University in Hagen, Department of Computer Science,
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//Database Systems for New Applications.
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//SECONDO is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//SECONDO is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//You should have received a copy of the GNU General Public License
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//along with SECONDO; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package viewer.hoese.algebras;
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import sj.lang.ListExpr;
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import viewer.*;
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import viewer.hoese.*;
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/**
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* A displayclass for the duration type
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*/
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public class Dsplduration extends DsplGeneric implements LabelAttribute, RenderAttribute{
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String entry;
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boolean defined;
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double value;
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/** Converts a duration given in nested list format into
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* a string representing the same value. If the list don't
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* is a valid representation for a durationtype (day ms), null
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* is returned.
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**/
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private String getString(ListExpr value){
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this.value = 0;
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if(isUndefined(value)){
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defined=false;
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return "undefined";
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}
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// first, extract day and millisecond infro from value
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if(value.listLength()!=2)
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return null;
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ListExpr f = value.first();
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ListExpr s = value.second();
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if(f.atomType()!=ListExpr.INT_ATOM || s.atomType()!=ListExpr.INT_ATOM)
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return null;
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defined = true;
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int d = f.intValue();
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int ms = s.intValue();
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this.value = ((double)d) + (((double)ms) / (24*3600000));
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// very simple output !
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String time = "";
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int H = ms / (1000*60*60);
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if (H>0) {
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time = "" + H + "h ";
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}
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ms = ms % (1000*60*60);
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int M = ms / (1000*60);
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if(M>0 || H > 0 ){
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time += M + "m ";
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}
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ms = ms % (1000*60);
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int S = ms / 1000;
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if(H>0 || M > 0 || S>0){
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time += S + "s ";
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}
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ms = ms % 1000;
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time += ms + "ms";
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if(d==0){
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return time;
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} else{
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return d+"days " + time ;
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}
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}
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public String toString(){
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return entry;
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}
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public void init (String name, int nameWidth, int indent,
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ListExpr type, ListExpr value, QueryResult qr)
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{
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String T = name;
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String V = getString(value);
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if(V==null)
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V = "<error>";
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T=extendString(T,nameWidth, indent);
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entry=(T + " : " + V);
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qr.addEntry(this);
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return;
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}
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public String getLabel(double time){
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return entry;
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}
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/** returns the defined state at the given time **/
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public boolean isDefined(double time ) {
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return defined;
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}
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/** returns the minimum value of this attribute **/
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public double getRenderValue(double time){
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return value;
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}
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/** return whether this objects is defined at any time**/
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public boolean mayBeDefined(){
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return defined;
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}
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/** returns the maximum value of this attribute **/
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public double getMinRenderValue(){
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return value;
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}
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/** returns the value of this attribute for the given time **/
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public double getMaxRenderValue(){
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return value;
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}
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}
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