/**
SpagoBI - The Business Intelligence Free Platform
Copyright (C) 2005-2009 Engineering Ingegneria Informatica S.p.A.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
**/
package it.eng.spagobi.engines.qbe.analysisstateloaders;
import it.eng.spagobi.utilities.assertion.Assert;
import it.eng.spagobi.utilities.engines.SpagoBIEngineRuntimeException;
import org.apache.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONObject;
/**
* @author Davide Zerbetto (davide.zerbetto@eng.it)
*/
public class Version6QbeEngineAnalysisStateLoader extends AbstractQbeEngineAnalysisStateLoader{
public final static String FROM_VERSION = "6";
public final static String TO_VERSION = "7";
/** Logger component. */
private static transient Logger logger = Logger.getLogger(Version6QbeEngineAnalysisStateLoader.class);
public Version6QbeEngineAnalysisStateLoader() {
super();
}
public Version6QbeEngineAnalysisStateLoader(IQbeEngineAnalysisStateLoader loader) {
super(loader);
}
public JSONObject convert(JSONObject data) {
logger.debug( "IN" );
try {
Assert.assertNotNull(data, "Data to convert cannot be null");
logger.debug( "Converting from encoding version [" + FROM_VERSION + "] to encoding version [" + TO_VERSION + "] ..." );
logger.debug( "Data to convert [" + data.toString() + "]");
data.put("crosstabdefinition", new JSONObject());
logger.debug( "Converted data [" + data.toString() + "]");
logger.debug( "Conversion from encoding version [" + FROM_VERSION + "] to encoding version [" + TO_VERSION + "] terminated succesfully" );
}catch(Throwable t) {
throw new SpagoBIEngineRuntimeException("Impossible to load from rowData [" + data + "]", t);
} finally {
logger.debug( "OUT" );
}
return data;
}
private void convertQuery(JSONObject queryJSON) {
JSONArray whereConditionsJSON;
JSONArray havingConditionsJSON;
String queryId = null;
JSONArray subqueriesJSON;
logger.debug("IN");
try {
Assert.assertNotNull(queryJSON, "Query to be converted cannot be null");
queryId = queryJSON.getString("id");
logger.debug( "Converting query [" + queryId + "] ...");
logger.debug( "Query content to be converted [" + queryJSON.toString() + "]");
// convert WHERE filters: values in IN, NOT IN, BETWEEN and NOT BETWEEN are separated by ","; they are converted into an array
whereConditionsJSON = queryJSON.optJSONArray( "filters" );
if (whereConditionsJSON != null && whereConditionsJSON.length() > 0) {
logger.debug( "Query [" + queryId + "] has [" + whereConditionsJSON.length() + "] WHERE filters to convert");
for (int i = 0; i < whereConditionsJSON.length(); i++) {
JSONObject aWhereConditionJSON = (JSONObject) whereConditionsJSON.get(i);
convertFilter(aWhereConditionJSON);
}
}
// convert HAVING filters: values in IN, NOT IN, BETWEEN and NOT BETWEEN are separated by ","; they are converted into an array
havingConditionsJSON = queryJSON.optJSONArray( "havings" );
if (havingConditionsJSON != null && havingConditionsJSON.length() > 0) {
logger.debug( "Query [" + queryId + "] has [" + havingConditionsJSON.length() + "] HAVING filters to convert");
for (int i = 0; i < havingConditionsJSON.length(); i++) {
JSONObject aHavingConditionsJSON = (JSONObject) havingConditionsJSON.get(i);
convertFilter(aHavingConditionsJSON);
}
}
// convert subqueries
subqueriesJSON = queryJSON.getJSONArray( "subqueries" );
logger.debug( "Query [" + queryId + "] have [" + subqueriesJSON.length() + "] subqueries to convert");
for(int j = 0; j < subqueriesJSON.length(); j++) {
logger.debug( "Converting subquery [" + (j+1)+ "] of query [" + queryId + "] ...");
convertQuery( subqueriesJSON.getJSONObject(j) );
}
logger.debug( "Query [" + queryId + "] converted succesfully");
}catch(Throwable t) {
throw new SpagoBIEngineRuntimeException("Impossible convert query [" + queryId + "]", t);
} finally {
logger.debug( "OUT" );
}
}
/**
* In previous version, when using IN, NOT IN, BETWEEN or NOT BETWEEN operators, the right operand values contained all values
* joined by ","; now those values are converted into an array
* @param filterJSON
*/
private void convertFilter(JSONObject filterJSON) {
logger.debug( "IN" );
try {
Assert.assertNotNull(filterJSON, "Filter to be converted cannot be null");
JSONArray rightValuesJSON = new JSONArray();
JSONArray rightLastValuesJSON = new JSONArray();
JSONArray rightDefaultValuesJSON = new JSONArray();
logger.debug("Converting filter : " + filterJSON.toString());
String operator = filterJSON.getString("operator");
String rightOperandType = filterJSON.getString( "rightOperandType");
String rightOperandValue = filterJSON.optString( "rightOperandValue");
String rightOperandLastValue = filterJSON.optString( "rightOperandLastValue");
String rightOperandDefaultValue = filterJSON.optString( "rightOperandDefaultValue");
logger.debug("Previous rigth operand : " + rightOperandValue);
if ( "Static Value".equalsIgnoreCase(rightOperandType) &&
( "IN".equalsIgnoreCase( operator )
|| "NOT IN".equalsIgnoreCase( operator )
|| "BETWEEN".equalsIgnoreCase( operator )
|| "NOT BETWEEN".equalsIgnoreCase( operator ) )) {
rightValuesJSON = splitValuesUsingComma(rightOperandValue, operator);
rightLastValuesJSON = splitValuesUsingComma(rightOperandLastValue, operator);
rightDefaultValuesJSON = splitValuesUsingComma(rightOperandDefaultValue, operator);
} else {
if (rightOperandValue != null) rightValuesJSON.put( rightOperandValue);
if (rightOperandLastValue != null) rightLastValuesJSON.put( rightOperandLastValue);
if (rightOperandDefaultValue != null) rightDefaultValuesJSON.put( rightOperandDefaultValue);
}
logger.debug("New rigth operand : " + rightValuesJSON.toString());
logger.debug("New rigth operand last values : " + rightLastValuesJSON.toString());
logger.debug("New rigth operand default values : " + rightDefaultValuesJSON.toString());
filterJSON.put("rightOperandValue", rightValuesJSON);
filterJSON.put("rightOperandLastValue", rightLastValuesJSON);
filterJSON.put("rightOperandDefaultValue", rightDefaultValuesJSON);
logger.debug("Filter converted properly");
} catch(Throwable t) {
throw new SpagoBIEngineRuntimeException("Impossible convert filter " + (filterJSON == null ? "NULL" : filterJSON.toString()), t);
} finally {
logger.debug( "OUT" );
}
}
private static JSONArray splitValuesUsingComma(String value, String operator) {
logger.debug("IN: value = " + value + "; operator = " + operator);
JSONArray toReturn = new JSONArray();
if (value != null) {
String[] values = null;
// case BETWEEN or NOT BETWEEN using dates
if ("BETWEEN".equalsIgnoreCase( operator ) || "NOT BETWEEN".equalsIgnoreCase( operator )) {
if (value.contains("STR_TO_DATE") || value.contains("TO_TIMESTAMP")) {
int firstComma = value.indexOf(',');
int correctComma = value.indexOf(',', firstComma+1);
String minValue = value.substring(0, correctComma-1);
String maxValue = value.substring(correctComma+1, value.length());
toReturn.put(minValue);
toReturn.put(maxValue);
} else {
values = value.split(",");
for (int i = 0; i < values.length ; i++) {
toReturn.put(values[i]);
}
}
} else if ((values = value.split(",")).length > 0) {
for (int i = 0; i < values.length ; i++) {
toReturn.put(values[i]);
}
}
}
logger.debug("OUT: new value = " + toReturn.toString());
return toReturn;
}
}