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1
25
26 package org.jrobin.inspector;
27
28 import org.jrobin.core.*;
29
30 import javax.swing.table.AbstractTableModel  ;
31 import java.io.File ;
32 import java.io.IOException ;
33 import java.util.Date ;
34
35 class DataTableModel extends AbstractTableModel {
36 private static final String [] COLUMN_NAMES = {"timestamp", "date", "value"};
37
38 private File file;
39 private Object [][] values;
40 private int dsIndex = -1, arcIndex = -1;
41
42 public int getRowCount() {
43 if(values == null) {
44 return 0;
45 }
46 else {
47 return values.length;
48 }
49 }
50
51 public int getColumnCount() {
52 return COLUMN_NAMES.length;
53 }
54
55 public Object getValueAt(int rowIndex, int columnIndex) {
56 if(values == null) {
57 return "--";
58 }
59 return values[rowIndex][columnIndex];
60 }
61
62 public String getColumnName(int column) {
63 return COLUMN_NAMES[column];
64 }
65
66 void setFile(File newFile) {
67 file = newFile;
68 setIndex(-1, -1);
69 }
70
71 void setIndex(int newDsIndex, int newArcIndex) {
72 if (dsIndex != newDsIndex || arcIndex != newArcIndex) {
73 dsIndex = newDsIndex;
74 arcIndex = newArcIndex;
75 values = null;
76 if(dsIndex >= 0 && arcIndex >= 0) {
77 try {
78 RrdDb rrd = new RrdDb(file.getAbsolutePath());
79 Archive arc = rrd.getArchive(arcIndex);
80 Robin robin = arc.getRobin(dsIndex);
81 long start = arc.getStartTime();
82 long step = arc.getArcStep();
83 double robinValues[] = robin.getValues();
84 values = new Object [robinValues.length][];
85 for(int i = 0; i < robinValues.length; i++) {
86 long timestamp = start + i * step;
87 String date = new Date (timestamp * 1000L).toString();
88 String value = InspectorModel.formatDouble(robinValues[i]);
89 values[i] = new Object [] {
90 "" + timestamp, date, value
91 };
92 }
93 rrd.close();
94 }
95 catch (IOException e) {
96 e.printStackTrace();
97 }
98 catch (RrdException e) {
99 e.printStackTrace();
100 }
101 }
102 fireTableDataChanged();
103 }
104 }
105 }
106 |
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