public ReportParameterValue[] getParamValues(
ReportParameter reportParameter, Map<String, Object> parameters) throws ProviderException {
if (reportParameter.getType().equals(ReportParameter.QUERY_PARAM)) {
return getParamValuesFromDataSource(reportParameter, parameters);
} else if (reportParameter.getType().equals(ReportParameter.LIST_PARAM)) {
return parseListValues(reportParameter);
} else if (reportParameter.getType().equals(ReportParameter.BOOLEAN_PARAM)) {
// default to Yes/No
if (reportParameter.getData() == null || reportParameter.getData().indexOf("|") == -1) {
reportParameter.setData("true:Yes|false:No");
}
return parseListValues(reportParameter);
}
throw new ProviderException(
reportParameter.getName()
+ ": param-type "
+ reportParameter.getType()
+ " not supported!");
}
protected ReportParameterValue[] parseListValues(ReportParameter reportParameter)
throws ProviderException {
StringTokenizer st = new StringTokenizer(reportParameter.getData(), "|");
ReportParameterValue[] values = new ReportParameterValue[st.countTokens()];
int index = 0;
while (st.hasMoreTokens()) {
String token = st.nextToken();
String id = token;
String description = token;
StringTokenizer paramValue = new StringTokenizer(token, ":");
if (paramValue.countTokens() == 2) {
id = paramValue.nextToken();
description = paramValue.nextToken();
}
try {
if (reportParameter.getClassName().equals("java.lang.Integer")) {
values[index] = new ReportParameterValue(Integer.valueOf(id), description);
} else if (reportParameter.getClassName().equals("java.lang.Double")) {
values[index] = new ReportParameterValue(Double.valueOf(id), description);
} else if (reportParameter.getClassName().equals("java.lang.Long")) {
values[index] = new ReportParameterValue(Long.valueOf(id), description);
} else if (reportParameter.getClassName().equals("java.math.BigDecimal")) {
values[index] = new ReportParameterValue(new BigDecimal(id), description);
} else {
values[index] = new ReportParameterValue(id, description);
}
} catch (Exception e) {
throw new ProviderException(
reportParameter.getData() + " contains invalid " + reportParameter.getClassName());
}
index++;
}
return values;
}
protected ReportParameterValue[] getParamValuesFromDataSource(
ReportParameter param, Map<String, Object> parameters) throws ProviderException {
Connection conn = null;
PreparedStatement pStmt = null;
ResultSet rs = null;
try {
ReportDataSource dataSource = param.getDataSource();
conn = dataSourceProvider.getConnection(dataSource.getId());
if (parameters == null || parameters.isEmpty()) {
pStmt = conn.prepareStatement(param.getData());
} else {
}
rs = pStmt.executeQuery();
ResultSetMetaData rsMetaData = rs.getMetaData();
boolean multipleColumns = false;
if (rsMetaData.getColumnCount() > 1) multipleColumns = true;
ArrayList<ReportParameterValue> v = new ArrayList<ReportParameterValue>();
while (rs.next()) {
ReportParameterValue value = new ReportParameterValue();
if (param.getClassName().equals("java.lang.String")) {
value.setId(rs.getString(1));
} else if (param.getClassName().equals("java.lang.Double")) {
value.setId(new Double(rs.getDouble(1)));
} else if (param.getClassName().equals("java.lang.Integer")) {
value.setId(new Integer(rs.getInt(1)));
} else if (param.getClassName().equals("java.lang.Long")) {
value.setId(new Long(rs.getLong(1)));
} else if (param.getClassName().equals("java.math.BigDecimal")) {
value.setId(rs.getBigDecimal(1));
} else if (param.getClassName().equals("java.util.Date")) {
value.setId(rs.getDate(1));
} else if (param.getClassName().equals("java.sql.Date")) {
value.setId(rs.getDate(1));
} else if (param.getClassName().equals("java.sql.Timestamp")) {
value.setId(rs.getTimestamp(1));
}
if (multipleColumns) {
value.setDescription(rs.getString(2));
}
v.add(value);
}
rs.close();
ReportParameterValue[] values = new ReportParameterValue[v.size()];
v.toArray(values);
return values;
} catch (Exception e) {
throw new ProviderException("Error retreiving param values from database: " + e.getMessage());
} finally {
try {
if (pStmt != null) pStmt.close();
if (conn != null) conn.close();
} catch (Exception c) {
log.error("Error closing");
}
}
}