Examples with RolapAggregator mondrian.rolap.RolapAggregator used on opensource projects

Example 1 with RolapAggregator

use of mondrian.rolap.RolapAggregator in project mondrian by pentaho.

the class AggGen method insertIntoLost.

/**
 * Return the sql code to populate a lost dimension table from the fact
 * table.
 */
public String insertIntoLost() {
    StringWriter sw = new StringWriter(512);
    PrintWriter pw = new PrintWriter(sw);
    String prefix = "    ";
    String factTableName = getFactTableName();
    SqlQuery sqlQuery = getSqlQuery();
    pw.print("INSERT INTO ");
    pw.print(makeLostAggregateTableName(getFactTableName()));
    pw.println(" (");
    for (JdbcSchema.Table.Column.Usage usage : notLostColumnUsages) {
        JdbcSchema.Table.Column c = usage.getColumn();
        pw.print(prefix);
        pw.print(c.getName());
        pw.println(',');
    }
    for (JdbcSchema.Table.Column.Usage usage : measures) {
        JdbcSchema.Table.Column c = usage.getColumn();
        pw.print(prefix);
        String name = getUsageName(usage);
        pw.print(name);
        pw.println(',');
    }
    // do fact_count
    pw.print(prefix);
    pw.print(getFactCount());
    pw.println(")");
    pw.println("SELECT");
    for (JdbcSchema.Table.Column.Usage usage : notLostColumnUsages) {
        JdbcSchema.Table.Column c = usage.getColumn();
        pw.print(prefix);
        pw.print(sqlQuery.getDialect().quoteIdentifier(factTableName, c.getName()));
        pw.print(" AS ");
        pw.print(sqlQuery.getDialect().quoteIdentifier(c.getName()));
        pw.println(',');
    }
    for (JdbcSchema.Table.Column.Usage usage : measures) {
        JdbcSchema.Table.Column c = usage.getColumn();
        RolapAggregator agg = usage.getAggregator();
        pw.print(prefix);
        pw.print(agg.getExpression(sqlQuery.getDialect().quoteIdentifier(factTableName, c.getName())));
        pw.print(" AS ");
        pw.print(sqlQuery.getDialect().quoteIdentifier(c.getName()));
        pw.println(',');
    }
    // do fact_count
    pw.print(prefix);
    pw.print("COUNT(*) AS ");
    pw.println(sqlQuery.getDialect().quoteIdentifier(getFactCount()));
    pw.println("FROM ");
    pw.print(prefix);
    pw.print(sqlQuery.getDialect().quoteIdentifier(factTableName));
    pw.print(" ");
    pw.println(sqlQuery.getDialect().quoteIdentifier(factTableName));
    pw.println("GROUP BY ");
    int k = 0;
    for (JdbcSchema.Table.Column.Usage notLostColumnUsage : notLostColumnUsages) {
        if (k++ > 0) {
            pw.println(",");
        }
        JdbcSchema.Table.Column.Usage usage = notLostColumnUsage;
        JdbcSchema.Table.Column c = usage.getColumn();
        pw.print(prefix);
        pw.print(sqlQuery.getDialect().quoteIdentifier(factTableName, c.getName()));
    }
    pw.println(';');
    return sw.toString();
}

Example 2 with RolapAggregator

use of mondrian.rolap.RolapAggregator in project mondrian by pentaho.

the class AggGen method init.

/**
 * The columns are the RolapStar columns taking part in an aggregation
 * request. This is what happens.
 * First, for each column, walk up the column's table until one level below
 * the base fact table. The left join condition contains the base fact table
 * and the foreign key column name. This column should not be lost.
 * Get the base fact table's measure columns.
 * With a list of columns that should not be lost and measure, one can
 * create lost create and insert commands.
 */
private void init() {
    JdbcSchema db = JdbcSchema.makeDB(star.getDataSource());
    try {
        db.load();
    } catch (SQLException ex) {
        getLogger().error(ex);
        return;
    }
    JdbcSchema.Table factTable = getTable(db, getFactTableName());
    if (factTable == null) {
        getLogger().warn("Init: " + "No fact table with name \"" + getFactTableName() + "\"");
        return;
    }
    try {
        factTable.load();
    } catch (SQLException ex) {
        getLogger().error(ex);
        return;
    }
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("Init: " + "RolapStar:" + Util.nl + getFactTable() + Util.nl + "FactTable:" + Util.nl + factTable);
    }
    // do foreign keys
    for (RolapStar.Column column : columns) {
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Init: " + "Column: " + column);
        }
        RolapStar.Table table = column.getTable();
        if (table.getParentTable() == null) {
            // in the RolapStar is this hiearchy captured - ugg.
            if (!addSpecialCollapsedColumn(db, column)) {
                return;
            }
            MondrianDef.Expression expr = column.getExpression();
            if (expr instanceof MondrianDef.Column) {
                MondrianDef.Column exprColumn = (MondrianDef.Column) expr;
                String name = exprColumn.getColumnName();
                JdbcSchema.Table.Column c = getColumn(factTable, name);
                if (c == null) {
                    getLogger().warn("Init: " + "FactTable:" + getFactTableName() + Util.nl + "No Column with name \"" + name + "\"");
                    return;
                }
                if (getLogger().isDebugEnabled()) {
                    getLogger().debug("  Jdbc Column: c=" + c);
                }
                addForeignKeyToNotLostColumnUsages(c);
            }
        } else {
            if (!addCollapsedColumn(db, column)) {
                return;
            }
            while (table.getParentTable().getParentTable() != null) {
                table = table.getParentTable();
            }
            RolapStar.Condition cond = table.getJoinCondition();
            if (getLogger().isDebugEnabled()) {
                getLogger().debug("  RolapStar.Condition: cond=" + cond);
            }
            MondrianDef.Expression left = cond.getLeft();
            if (left instanceof MondrianDef.Column) {
                MondrianDef.Column leftColumn = (MondrianDef.Column) left;
                String name = leftColumn.getColumnName();
                JdbcSchema.Table.Column c = getColumn(factTable, name);
                if (c == null) {
                    getLogger().warn("Init: " + "FactTable:" + getFactTableName() + Util.nl + "No Column with name \"" + name + "\"");
                    return;
                }
                if (getLogger().isDebugEnabled()) {
                    getLogger().debug("  Jdbc Column: c=" + c);
                }
                addForeignKeyToNotLostColumnUsages(c);
            }
        }
    }
    // do measures
    for (RolapStar.Column rColumn : getFactTable().getColumns()) {
        String name = getRolapStarColumnName(rColumn);
        if (name == null) {
            getLogger().warn("Init: " + "For fact table \"" + getFactTableName() + "\", could not get column name for RolapStar.Column: " + rColumn);
            return;
        }
        if (!(rColumn instanceof RolapStar.Measure)) {
            // TODO: whats the solution to this?
            // its a funky dimension column in the fact table!!!
            getLogger().warn("not a measure: " + name);
            continue;
        }
        RolapStar.Measure rMeasure = (RolapStar.Measure) rColumn;
        if (!rMeasure.getCubeName().equals(cubeName)) {
            continue;
        }
        final RolapAggregator aggregator = rMeasure.getAggregator();
        JdbcSchema.Table.Column c = getColumn(factTable, name);
        if (c == null) {
            getLogger().warn("For RolapStar: \"" + getFactTable().getAlias() + "\" measure with name, " + name + ", is not a column name. " + "The measure's column name may be an expression" + " and currently AggGen does not handle expressions." + " You will have to add this measure to the" + " aggregate table definition by hand.");
            continue;
        }
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("  Jdbc Column m=" + c);
        }
        JdbcSchema.Table.Column.Usage usage = null;
        if (c.hasUsage(JdbcSchema.UsageType.MEASURE)) {
            for (Iterator<JdbcSchema.Table.Column.Usage> uit = c.getUsages(JdbcSchema.UsageType.MEASURE); uit.hasNext(); ) {
                JdbcSchema.Table.Column.Usage tmpUsage = uit.next();
                if ((tmpUsage.getAggregator() == aggregator) && tmpUsage.getSymbolicName().equals(rColumn.getName())) {
                    usage = tmpUsage;
                    break;
                }
            }
        }
        if (usage == null) {
            usage = c.newUsage(JdbcSchema.UsageType.MEASURE);
            usage.setAggregator(aggregator);
            usage.setSymbolicName(rColumn.getName());
        }
        measures.add(usage);
    }
    // If we got to here, then everything is ok.
    isReady = true;
}

Example 3 with RolapAggregator

use of mondrian.rolap.RolapAggregator in project mondrian by pentaho.

the class AggGen method insertIntoCollapsed.

/**
 * Return the sql code to populate a collapsed dimension table from
 * the fact table.
 */
public String insertIntoCollapsed() {
    StringWriter sw = new StringWriter(512);
    PrintWriter pw = new PrintWriter(sw);
    String prefix = "    ";
    String factTableName = getFactTableName();
    SqlQuery sqlQuery = getSqlQuery();
    pw.print("INSERT INTO ");
    pw.print(makeCollapsedAggregateTableName(getFactTableName()));
    pw.println(" (");
    for (List<JdbcSchema.Table.Column.Usage> list : collapsedColumnUsages.values()) {
        for (JdbcSchema.Table.Column.Usage usage : list) {
            JdbcSchema.Table.Column c = usage.getColumn();
            pw.print(prefix);
            if (usage.usagePrefix != null) {
                pw.print(usage.usagePrefix);
            }
            pw.print(c.getName());
            pw.println(',');
        }
    }
    for (JdbcSchema.Table.Column.Usage usage : measures) {
        JdbcSchema.Table.Column c = usage.getColumn();
        pw.print(prefix);
        String name = getUsageName(usage);
        pw.print(name);
        // pw.print(c.getName());
        pw.println(',');
    }
    // do fact_count
    pw.print(prefix);
    pw.print(getFactCount());
    pw.println(")");
    pw.println("SELECT");
    for (List<JdbcSchema.Table.Column.Usage> list : collapsedColumnUsages.values()) {
        for (JdbcSchema.Table.Column.Usage usage : list) {
            JdbcSchema.Table.Column c = usage.getColumn();
            JdbcSchema.Table t = c.getTable();
            pw.print(prefix);
            pw.print(sqlQuery.getDialect().quoteIdentifier(t.getName(), c.getName()));
            pw.print(" AS ");
            String n = (usage.usagePrefix == null) ? c.getName() : usage.usagePrefix + c.getName();
            pw.print(sqlQuery.getDialect().quoteIdentifier(n));
            pw.println(',');
        }
    }
    for (JdbcSchema.Table.Column.Usage usage : measures) {
        JdbcSchema.Table.Column c = usage.getColumn();
        JdbcSchema.Table t = c.getTable();
        RolapAggregator agg = usage.getAggregator();
        pw.print(prefix);
        pw.print(agg.getExpression(sqlQuery.getDialect().quoteIdentifier(t.getName(), c.getName())));
        pw.print(" AS ");
        pw.print(sqlQuery.getDialect().quoteIdentifier(c.getName()));
        pw.println(',');
    }
    // do fact_count
    pw.print(prefix);
    pw.print("COUNT(*) AS ");
    pw.println(sqlQuery.getDialect().quoteIdentifier(getFactCount()));
    pw.println("FROM ");
    pw.print(prefix);
    pw.print(sqlQuery.getDialect().quoteIdentifier(factTableName));
    pw.print(" ");
    pw.print(sqlQuery.getDialect().quoteIdentifier(factTableName));
    pw.println(',');
    // add dimension tables
    int k = 0;
    for (RolapStar.Table rt : collapsedColumnUsages.keySet()) {
        if (k++ > 0) {
            pw.println(',');
        }
        pw.print(prefix);
        pw.print(sqlQuery.getDialect().quoteIdentifier(rt.getAlias()));
        pw.print(" AS ");
        pw.print(sqlQuery.getDialect().quoteIdentifier(rt.getAlias()));
        // walk up tables
        if (rt.getParentTable() != null) {
            while (rt.getParentTable().getParentTable() != null) {
                rt = rt.getParentTable();
                pw.println(',');
                pw.print(prefix);
                pw.print(sqlQuery.getDialect().quoteIdentifier(rt.getAlias()));
                pw.print(" AS ");
                pw.print(sqlQuery.getDialect().quoteIdentifier(rt.getAlias()));
            }
        }
    }
    pw.println();
    pw.println("WHERE ");
    k = 0;
    for (RolapStar.Table rt : collapsedColumnUsages.keySet()) {
        if (k++ > 0) {
            pw.println(" and");
        }
        RolapStar.Condition cond = rt.getJoinCondition();
        if (cond == null) {
            continue;
        }
        pw.print(prefix);
        pw.print(cond.toString(sqlQuery));
        if (rt.getParentTable() != null) {
            while (rt.getParentTable().getParentTable() != null) {
                rt = rt.getParentTable();
                cond = rt.getJoinCondition();
                pw.println(" and");
                pw.print(prefix);
                pw.print(cond.toString(sqlQuery));
            }
        }
    }
    pw.println();
    pw.println("GROUP BY ");
    k = 0;
    for (List<JdbcSchema.Table.Column.Usage> list : collapsedColumnUsages.values()) {
        for (JdbcSchema.Table.Column.Usage usage : list) {
            if (k++ > 0) {
                pw.println(",");
            }
            JdbcSchema.Table.Column c = usage.getColumn();
            JdbcSchema.Table t = c.getTable();
            String n = (usage.usagePrefix == null) ? c.getName() : usage.usagePrefix + c.getName();
            pw.print(prefix);
            pw.print(sqlQuery.getDialect().quoteIdentifier(t.getName(), n));
        }
    }
    pw.println(';');
    return sw.toString();
}