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1
25 package org.jrobin.inspector;
26
27 import org.jrobin.core.RrdDb;
28 import org.jrobin.core.Datasource;
29 import org.jrobin.core.RrdException;
30
31 import javax.swing.table.AbstractTableModel  ;
32 import java.io.IOException ;
33 import java.io.File ;
34
35 class DatasourceTableModel extends AbstractTableModel {
36 private static final Object [] DESCRIPTIONS = {"name", "type", "heartbeat", "min value",
37 "max value", "last value", "accum. value", "NaN seconds"};
38 private static final String [] COLUMN_NAMES = {"description", "value"};
39
40 private File file;
41 private Object [] values;
42 private int dsIndex = -1;
43
44 public int getRowCount() {
45 return DESCRIPTIONS.length;
46 }
47
48 public int getColumnCount() {
49 return COLUMN_NAMES.length;
50 }
51
52 public Object getValueAt(int rowIndex, int columnIndex) {
53 if (columnIndex == 0) {
54 return DESCRIPTIONS[rowIndex];
55 }
56 else if (columnIndex == 1) {
57 if (values != null) {
58 return values[rowIndex];
59 }
60 else {
61 return "--";
62 }
63 }
64 return null;
65 }
66
67 public String getColumnName(int column) {
68 return COLUMN_NAMES[column];
69 }
70
71 void setFile(File newFile) {
72 file = newFile;
73 setIndex(-1);
74 }
75
76 void setIndex(int newDsIndex) {
77 if (dsIndex != newDsIndex) {
78 dsIndex = newDsIndex;
79 values = null;
80 if(dsIndex >= 0) {
81 try {
82 RrdDb rrd = new RrdDb(file.getAbsolutePath());
83 Datasource ds = rrd.getDatasource(dsIndex);
84 values = new Object []{
85 ds.getDsName(),
86 ds.getDsType(),
87 "" + ds.getHeartbeat(),
88 InspectorModel.formatDouble(ds.getMinValue()),
89 InspectorModel.formatDouble(ds.getMaxValue()),
90 InspectorModel.formatDouble(ds.getLastValue()),
91 InspectorModel.formatDouble(ds.getAccumValue()),
92 "" + ds.getNanSeconds()
93 };
94 rrd.close();
95 }
96 catch (IOException e) {
97 e.printStackTrace();
98 }
99 catch (RrdException e) {
100 e.printStackTrace();
101 }
102 }
103 fireTableDataChanged();
104 }
105 }
106 } |
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