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1
28 package net.sf.jasperreports.olap.xmla;
29
30 import java.util.ArrayList  ;
31 import java.util.Iterator ;
32 import java.util.List ;
33
34 import org.apache.commons.logging.Log;
35 import org.apache.commons.logging.LogFactory;
36
37 import net.sf.jasperreports.engine.JRRuntimeException;
38 import net.sf.jasperreports.olap.result.JROlapCell;
39 import net.sf.jasperreports.olap.result.JROlapResult;
40 import net.sf.jasperreports.olap.result.JROlapResultAxis;
41
42
43
47 public class JRXmlaResult implements JROlapResult
48 {
49
50 private final static Log log = LogFactory.getLog(JRXmlaResult.class);
51
52 private List axesList = new ArrayList ();
53 private JRXmlaResultAxis[] axes;
54 private int[] cellOrdinalFactors;
55 private final List cells = new ArrayList ();
56
57 public JROlapResultAxis[] getAxes()
58 {
59 return ensureAxisArray();
60 }
61
62 public JROlapCell getCell(int[] axisPositions)
63 {
64 int cellOrdinal = getCellOrdinal(axisPositions);
65 return (JROlapCell) cells.get(cellOrdinal);
66 }
67
68 protected int getCellOrdinal(int[] axisPositions)
69 {
70 ensureCellOrdinalFactors();
71
72 if (axisPositions.length != axes.length)
73 {
74 throw new JRRuntimeException("Number of axis positions (" + axisPositions.length
75 + ") doesn't match the number of axes (" + axes.length + ")");
76 }
77
78 int ordinal = 0;
79 for (int i = 0; i < axisPositions.length; ++i)
80 {
81 ordinal += cellOrdinalFactors[i] * axisPositions[i];
82 }
83 return ordinal;
84 }
85
86 public void addAxis(JRXmlaResultAxis axis)
87 {
88 axesList.add(axis);
89 resetAxisArray();
90 }
91
92 public JRXmlaResultAxis getAxisByName(String name)
93 {
94 JRXmlaResultAxis axis = null;
95 for (Iterator iter = axesList.iterator(); axis == null && iter.hasNext();)
96 {
97 JRXmlaResultAxis ax = (JRXmlaResultAxis) iter.next();
98 if (ax.getAxisName().equals(name))
99 {
100 axis = ax;
101 }
102 }
103 return axis;
104 }
105
106 protected JRXmlaResultAxis[] ensureAxisArray()
107 {
108 if (axes == null)
109 {
110 axes = new JRXmlaResultAxis[axesList.size()];
111 axes = (JRXmlaResultAxis[]) axesList.toArray(axes);
112 }
113 return axes;
114 }
115
116 protected void ensureCellOrdinalFactors()
117 {
118 ensureAxisArray();
119
120 if (cellOrdinalFactors == null)
121 {
122 int axisCount = axes.length;
123 cellOrdinalFactors = new int[axisCount];
124
125 cellOrdinalFactors[0] = 1;
126 for (int i = 1; i < axisCount; ++i)
127 {
128 cellOrdinalFactors[i] = cellOrdinalFactors[i - 1] * axes[i - 1].getTupleCount();
129 }
130 }
131 }
132
133 protected void resetAxisArray()
134 {
135 axes = null;
136 cellOrdinalFactors = null;
137 }
138
139 public void setCell(JRXmlaCell cell, int cellOrdinal)
140 {
141 int cellsCount = cells.size();
142 if (cellOrdinal == -1 || cellOrdinal == cellsCount)
143 {
144 cells.add(cell);
145 }
146 else if (cellOrdinal > cellsCount)
147 {
148 for (int i = cellsCount; i < cellOrdinal; ++i)
149 {
150 cells.add(null);
151 }
152 cells.add(cell);
153 }
154 else
155 {
156 if (log.isWarnEnabled())
157 {
158 log.warn("Overwriting cell at ordinal " + cellOrdinal);
159 }
160
161 cells.set(cellOrdinal, cell);
162 }
163 }
164 }
165 |
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