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Java > Open Source Codes > de > laures > cewolf > taglib > util > DatasetProductionTimeStore


1 /* ================================================================
2  * Cewolf : Chart enabling Web Objects Framework
3  * ================================================================
4  *
5  * Project Info: http://cewolf.sourceforge.net
6  * Project Lead: Guido Laures (guido@laures.de);
7  *
8  * (C) Copyright 2002, by Guido Laures
9  *
10  * This library is free software; you can redistribute it and/or modify it under the terms
11  * of the GNU Lesser General Public License as published by the Free Software Foundation;
12  * either version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  * See the GNU Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public License along with this
19  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20  * Boston, MA 02111-1307, USA.
21  */
22
23 package de.laures.cewolf.taglib.util;
24
25 import java.util.Date JavaDoc;
26 import java.util.Hashtable JavaDoc;
27 import java.util.Iterator JavaDoc;
28 import java.util.Map JavaDoc;
29
30 import org.apache.commons.logging.Log;
31 import org.apache.commons.logging.LogFactory;
32
33 /**
34  * @author glaures
35  */
36 public class DatasetProductionTimeStore extends Hashtable JavaDoc {
37
38     private static final DatasetProductionTimeStore instance = new DatasetProductionTimeStore();
39     private static final Log log = LogFactory.getLog(DatasetProductionTimeStore.class);
40     public static final DatasetProductionTimeStore getInstance() {
41         return instance;
42     }
43
44     private DatasetProductionTimeStore() {
45     }
46
47     public boolean containsEntry(String JavaDoc producerId, Map JavaDoc params) {
48         return containsKey(new DatasetProductionTimesKey(producerId, params));
49     }
50
51     public void addEntry(String JavaDoc producerId, Map JavaDoc params, Date JavaDoc produceTime) {
52       log.debug("add entry: " + producerId);
53         put(new DatasetProductionTimesKey(producerId, params), produceTime);
54     }
55
56     public void removeEntry(String JavaDoc producerId, Map JavaDoc params) {
57       log.debug("remove entry: " + producerId);
58       
59         remove(new DatasetProductionTimesKey(producerId, params));
60     }
61
62     public Date JavaDoc getProductionTime(String JavaDoc producerId, Map JavaDoc params) {
63         return (Date JavaDoc) get(new DatasetProductionTimesKey(producerId, params));
64     }
65
66     public String JavaDoc paramsToString(Map JavaDoc params){
67         Iterator JavaDoc it = params.keySet().iterator();
68         StringBuffer JavaDoc buf = new StringBuffer JavaDoc("[");
69         while(it.hasNext()){
70             String JavaDoc key = (String JavaDoc)it.next();
71             buf.append(key + ":" + params.get(key));
72         }
73         buf.append("]");
74         return buf.toString();
75     }
76             
77 }
78
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