/**
* set parameter choice value. The string value is in English locale, and needs to be parsed back
* into object value based on the data type.
*
* @param value the string value for the object
* @param type the parameter data type
*/
public void setValue(String value, int type) {
try {
switch (type) {
case IScalarParameterDefn.TYPE_BOOLEAN:
this.value = DataTypeUtil.toBoolean(value);
break;
case IScalarParameterDefn.TYPE_DATE_TIME:
this.value = DataTypeUtil.toDate(value);
break;
case IScalarParameterDefn.TYPE_DECIMAL:
this.value = DataTypeUtil.toBigDecimal(value);
break;
case IScalarParameterDefn.TYPE_FLOAT:
this.value = DataTypeUtil.toDouble(value);
break;
case IScalarParameterDefn.TYPE_INTEGER:
this.value = DataTypeUtil.toInteger(value);
break;
case IScalarParameterDefn.TYPE_DATE:
this.value = DataTypeUtil.toSqlDate(value);
break;
case IScalarParameterDefn.TYPE_TIME:
this.value = DataTypeUtil.toSqlTime(value);
break;
case IScalarParameterDefn.TYPE_STRING:
default:
this.value = DataTypeUtil.toString(value);
break;
}
} catch (BirtException e) {
log.log(Level.SEVERE, e.getLocalizedMessage(), e);
this.value = null;
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.birt.data.engine.api.aggregation.ICalculator#getTypedObject(java.lang.Object)
*/
public Object getTypedObject(Object obj) throws DataException {
try {
return DataTypeUtil.toDouble(obj);
} catch (BirtException e) {
throw DataException.wrap(e);
}
}
/**
* Evaluate the given value
*
* @param value
* @param n
* @return
* @throws DataException
*/
public boolean evaluate(ScriptContext cx, Scriptable scope, DataSetRuntime dataSet)
throws DataException {
if (filterPassController.getForceReset()) {
doReset();
filterPassController.setForceReset(false);
}
if (N == -1) {
// Create a new evaluator
// Evaluate N (which is operand1) at this time
Object n_object = null;
try {
n_object = ExprEvaluateUtil.evaluateRawExpression2(n_expr, scope, cx, dataSet);
} catch (BirtException e1) {
throw DataException.wrap(e1);
}
double n_value = -1;
try {
n_value = DataTypeUtil.toDouble(n_object).doubleValue();
} catch (BirtException e) {
// conversion error
throw new DataException(ResourceConstants.INVALID_TOP_BOTTOM_ARGUMENT, e);
}
// First time; calculate N based on updated row count
if (n_percent) {
if (n_value < 0 || n_value > 100)
throw new DataException(ResourceConstants.INVALID_TOP_BOTTOM_PERCENT_ARGUMENT);
N = (int) Math.round(n_value / 100 * filterPassController.getRowCount());
} else {
if (n_value < 0) throw new DataException(ResourceConstants.INVALID_TOP_BOTTOM_N_ARGUMENT);
N = (int) n_value;
}
}
// Evaluate operand expression
Object value =
ScriptEvalUtil.evalExpr(op_expr, cx.newContext(scope), ScriptExpression.defaultID, 0);
if (filterPassController.getPassLevel() == FilterPassController.FIRST_PASS) {
return doFirstPass(value);
} else if (filterPassController.getPassLevel() == FilterPassController.SECOND_PASS) {
return doSecondPass();
}
return false;
}
/*
* @see org.eclipse.birt.data.engine.api.IResultIterator#getDouble(java.lang.String)
*/
public Double getDouble(String name) throws BirtException {
return DataTypeUtil.toDouble(getValue(name));
}
