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16 package org.argeo.slc.client.ui.dist.utils;
17
18 import java.math.BigDecimal;
19 import java.util.Calendar;
20 import java.util.List;
21
22 import javax.jcr.Node;
23 import javax.jcr.PropertyType;
24 import javax.jcr.RepositoryException;
25 import javax.jcr.Value;
26 import javax.jcr.ValueFormatException;
27
28 import org.apache.commons.logging.Log;
29 import org.apache.commons.logging.LogFactory;
30 import org.argeo.eclipse.ui.GenericTableComparator;
31 import org.argeo.slc.SlcException;
32 import org.eclipse.jface.viewers.Viewer;
33
34
35 public class DistNodeViewerComparator extends GenericTableComparator {
36 private static final long serialVersionUID = -5966120108210992211L;
37
38 private final static Log log = LogFactory
39 .getLog(DistNodeViewerComparator.class);
40
41
42 public final static int NAME_VERSION_TYPE = 100;
43 public final static int VERSION_TYPE = 101;
44
45 protected List<String> propertiesList;
46 protected List<Integer> propertyTypesList;
47 protected Integer propertyType;
48 protected String property;
49
50 private NameVersionComparator nvc = new NameVersionComparator();
51 private VersionComparator vc = new VersionComparator();
52
53 public DistNodeViewerComparator(int defaultColIndex, int defaultDirection,
54 List<String> propertiesList, List<Integer> propertyTypesList) {
55 super(defaultColIndex, defaultDirection);
56 this.propertiesList = propertiesList;
57 this.propertyTypesList = propertyTypesList;
58 this.propertyIndex = defaultColIndex;
59 this.propertyType = propertyTypesList.get(defaultColIndex);
60 this.property = propertiesList.get(defaultColIndex);
61 setColumn(defaultColIndex);
62 }
63
64 @Override
65 public int compare(Viewer viewer, Object e1, Object e2) {
66 int rc = 0;
67 long lc = 0;
68
69 try {
70 Node n1 = (Node) e1;
71 Node n2 = (Node) e2;
72
73 Value v1 = null;
74 Value v2 = null;
75 if (n1.hasProperty(property))
76 v1 = n1.getProperty(property).getValue();
77 if (n2.hasProperty(property))
78 v2 = n2.getProperty(property).getValue();
79
80 if (v2 == null && v1 == null)
81 return 0;
82 else if (v2 == null)
83 return -1;
84 else if (v1 == null)
85 return 1;
86
87 switch (propertyType) {
88 case NAME_VERSION_TYPE:
89 rc = nvc.compare(viewer, v1.getString(), v2.getString());
90 break;
91 case VERSION_TYPE:
92 rc = vc.compare(viewer, v1.getString(), v2.getString());
93 break;
94 case PropertyType.STRING:
95 rc = v1.getString().compareTo(v2.getString());
96 break;
97 case PropertyType.BOOLEAN:
98 boolean b1 = v1.getBoolean();
99 boolean b2 = v2.getBoolean();
100 if (b1 == b2)
101 rc = 0;
102 else
103
104 rc = b1 ? 1 : -1;
105 break;
106 case PropertyType.DATE:
107 Calendar c1 = v1.getDate();
108 Calendar c2 = v2.getDate();
109 if (c1 == null || c2 == null)
110 log.trace("undefined date");
111 lc = c1.getTimeInMillis() - c2.getTimeInMillis();
112 if (lc < Integer.MIN_VALUE)
113
114 rc = -1;
115 else if (lc > Integer.MAX_VALUE)
116
117 rc = 1;
118 else
119 rc = (int) lc;
120 break;
121 case PropertyType.LONG:
122 long l1;
123 long l2;
124
125 try {
126 l1 = v1.getLong();
127 } catch (ValueFormatException ve) {
128 l1 = 0;
129 }
130 try {
131 l2 = v2.getLong();
132 } catch (ValueFormatException ve) {
133 l2 = 0;
134 }
135
136 lc = l1 - l2;
137 if (lc < Integer.MIN_VALUE)
138
139 rc = -1;
140 else if (lc > Integer.MAX_VALUE)
141
142 rc = 1;
143 else
144 rc = (int) lc;
145 break;
146 case PropertyType.DECIMAL:
147 BigDecimal bd1 = v1.getDecimal();
148 BigDecimal bd2 = v2.getDecimal();
149 rc = bd1.compareTo(bd2);
150 break;
151 default:
152 throw new SlcException(
153 "Unimplemented comparaison for PropertyType "
154 + propertyType);
155 }
156
157
158 if (direction == DESCENDING) {
159 rc = -rc;
160 }
161
162 } catch (RepositoryException re) {
163 throw new SlcException("Unexpected error "
164 + "while comparing nodes", re);
165 }
166 return rc;
167 }
168
169 @Override
170 public void setColumn(int column) {
171 if (column == this.propertyIndex) {
172
173 direction = 1 - direction;
174 } else {
175
176 this.propertyIndex = column;
177 this.propertyType = propertyTypesList.get(column);
178 this.property = propertiesList.get(column);
179 direction = ASCENDING;
180 }
181 }
182 }