001 /*
002 // $Id: //open/mondrian/src/main/mondrian/olap4j/MondrianOlap4jCellSetAxis.java#4 $
003 // This software is subject to the terms of the Common Public License
004 // Agreement, available at the following URL:
005 // http://www.opensource.org/licenses/cpl.html.
006 // Copyright (C) 2007-2008 Julian Hyde
007 // All Rights Reserved.
008 // You must accept the terms of that agreement to use this software.
009 */
010 package mondrian.olap4j;
011
012 import mondrian.olap.AxisOrdinal;
013 import org.olap4j.*;
014 import org.olap4j.metadata.*;
015
016 import java.util.*;
017
018 /**
019 * Implementation of {@link org.olap4j.CellSetAxis}
020 * for the Mondrian OLAP engine.
021 *
022 * @author jhyde
023 * @version $Id: //open/mondrian/src/main/mondrian/olap4j/MondrianOlap4jCellSetAxis.java#4 $
024 * @since May 24, 2007
025 */
026 class MondrianOlap4jCellSetAxis implements CellSetAxis {
027 private final MondrianOlap4jCellSet olap4jCellSet;
028 private final mondrian.olap.QueryAxis queryAxis;
029 private final mondrian.olap.Axis axis;
030
031 MondrianOlap4jCellSetAxis(
032 MondrianOlap4jCellSet olap4jCellSet,
033 mondrian.olap.QueryAxis queryAxis,
034 mondrian.olap.Axis axis)
035 {
036 assert olap4jCellSet != null;
037 assert queryAxis != null;
038 assert axis != null;
039 this.olap4jCellSet = olap4jCellSet;
040 this.queryAxis = queryAxis;
041 this.axis = axis;
042 }
043
044 public Axis getAxisOrdinal() {
045 switch (queryAxis.getAxisOrdinal()) {
046 case SLICER:
047 return Axis.FILTER;
048 default:
049 return Axis.valueOf(queryAxis.getAxisOrdinal().name());
050 }
051 }
052
053 public CellSet getCellSet() {
054 return olap4jCellSet;
055 }
056
057 public CellSetAxisMetaData getAxisMetaData() {
058 final AxisOrdinal axisOrdinal = queryAxis.getAxisOrdinal();
059 switch (axisOrdinal) {
060 case SLICER:
061 return olap4jCellSet.getMetaData().getFilterAxisMetaData();
062 default:
063 return olap4jCellSet.getMetaData().getAxesMetaData().get(
064 axisOrdinal.logicalOrdinal());
065 }
066 }
067
068 public List<Position> getPositions() {
069 switch (getAxisOrdinal()) {
070 case FILTER:
071 final List<Hierarchy> hierarchyList =
072 getAxisMetaData().getHierarchies();
073 final Member[] members = new Member[hierarchyList.size()];
074 final MondrianOlap4jConnection olap4jConnection =
075 olap4jCellSet.olap4jStatement.olap4jConnection;
076 for (mondrian.olap.Member member : axis.getPositions().get(0)) {
077 final MondrianOlap4jHierarchy hierarchy =
078 olap4jConnection.toOlap4j(
079 member.getHierarchy());
080 members[hierarchyList.indexOf(hierarchy)] =
081 olap4jConnection.toOlap4j(
082 member);
083 }
084 int k = -1;
085 for (Hierarchy hierarchy : hierarchyList) {
086 ++k;
087 if (members[k] == null) {
088 members[k] =
089 ((MondrianOlap4jHierarchy) hierarchy).getDefaultMember();
090 }
091 }
092 final Position position = new Position() {
093 public List<Member> getMembers() {
094 return Arrays.asList(members);
095 }
096
097 public int getOrdinal() {
098 return 0;
099 }
100 };
101 return Collections.singletonList(position);
102 default:
103 return new AbstractList<Position>() {
104 public Position get(final int index) {
105 final mondrian.olap.Position mondrianPosition =
106 axis.getPositions().get(index);
107 return new MondrianOlap4jPosition(mondrianPosition, index);
108 }
109
110 public int size() {
111 return axis.getPositions().size();
112 }
113 };
114 }
115 }
116
117 public int getPositionCount() {
118 return getPositions().size();
119 }
120
121 public ListIterator<Position> iterator() {
122 return getPositions().listIterator();
123 }
124
125 private class MondrianOlap4jPosition implements Position {
126 private final mondrian.olap.Position mondrianPosition;
127 private final int index;
128
129 public MondrianOlap4jPosition(
130 mondrian.olap.Position mondrianPosition, int index) {
131 this.mondrianPosition = mondrianPosition;
132 this.index = index;
133 }
134
135 public List<Member> getMembers() {
136 return new AbstractList<Member>() {
137 public Member get(int index) {
138 final mondrian.olap.Member mondrianMember =
139 mondrianPosition.get(index);
140 return olap4jCellSet.olap4jStatement.olap4jConnection
141 .toOlap4j(mondrianMember);
142 }
143
144 public int size() {
145 return mondrianPosition.size();
146 }
147 };
148 }
149
150 public int getOrdinal() {
151 return index;
152 }
153 }
154 }
155
156 // End MondrianOlap4jCellSetAxis.java