DerbyQueryObject.java
- /*
- * GovWay - A customizable API Gateway
- * https://govway.org
- *
- * Copyright (c) 2005-2025 Link.it srl (https://link.it).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3, as published by
- * the Free Software Foundation.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- package org.openspcoop2.utils.sql;
- import java.text.SimpleDateFormat;
- import java.util.Date;
- import java.util.Iterator;
- import org.openspcoop2.utils.TipiDatabase;
- import org.openspcoop2.utils.date.DateUtils;
- /**
- * Implementazione per HyperSQL
- *
- * @author Poli Andrea (apoli@link.it)
- * @author $Author$
- * @version $Rev$, $Date$
- */
- public class DerbyQueryObject extends SQLQueryObjectCore {
- public DerbyQueryObject(TipiDatabase tipoDatabase) {
- super(tipoDatabase);
- }
-
- /**
- * Ritorna una costante di tipo 'timestamp'
- *
- * @param date Costante
- */
- @Override
- public String getSelectTimestampConstantField(Date date) throws SQLQueryObjectException{
- SimpleDateFormat sqlDateformat = DateUtils.getDefaultDateTimeFormatter("yyyy-MM-dd HH:mm:ss.SSS");
- return "CAST('"+sqlDateformat.format(date)+"' AS TIMESTAMP)";
- }
-
-
-
- @Override
- public String getUnixTimestampConversion(String column){
- /**return "((datediff('ss',CAST('1970-01-01 00:00:00' AS TIMESTAMP),"+column+")-3600)*1000)";*/
- return "( "+
- "("+
- "(UNIX_TIMESTAMP("+column+")*1000) - "+
- "((EXTRACT(HOUR FROM TIMEZONE()))*60*60*1000)" +
- ") + "+
- "(CAST(CHAR ("+column+") AS INTEGER))" +
- ")"
- ;
- }
-
- @Override
- public String getDiffUnixTimestamp(String columnMax,String columnMin){
- return "( "+getUnixTimestampConversion(columnMax)+" - "+getUnixTimestampConversion(columnMin)+" )";
- }
-
-
-
- @Override
- public ISQLQueryObject addSelectAvgTimestampField(String field, String alias)
- throws SQLQueryObjectException {
- if(field==null)
- throw new SQLQueryObjectException(SQLQueryObjectCore.FIELD_DEVE_ESSERE_DIVERSO_NULL);
- // Trasformo in UNIX_TIMESTAMP
- String fieldSQL = "avg("+this.getUnixTimestampConversion(field)+")";
- if(alias != null){
- /** fieldSQL = fieldSQL + " as "+alias;*/
- fieldSQL = fieldSQL +this.getDefaultAliasFieldKeyword()+alias;
- }
- this.engineAddSelectField(null,fieldSQL,null,false,true);
- this.fieldNames.add(alias);
- return this;
- }
- @Override
- public ISQLQueryObject addSelectMaxTimestampField(String field, String alias)
- throws SQLQueryObjectException {
- if(field==null)
- throw new SQLQueryObjectException(SQLQueryObjectCore.FIELD_DEVE_ESSERE_DIVERSO_NULL);
- // Trasformo in UNIX_TIMESTAMP
- String fieldSQL = "max("+this.getUnixTimestampConversion(field)+")";
- if(alias != null){
- /**fieldSQL = fieldSQL + " as "+alias;*/
- fieldSQL = fieldSQL +this.getDefaultAliasFieldKeyword()+alias;
- }
- this.engineAddSelectField(null,fieldSQL,null,false,true);
- this.fieldNames.add(alias);
- return this;
- }
- @Override
- public ISQLQueryObject addSelectMinTimestampField(String field, String alias)
- throws SQLQueryObjectException {
- if(field==null)
- throw new SQLQueryObjectException(SQLQueryObjectCore.FIELD_DEVE_ESSERE_DIVERSO_NULL);
- // Trasformo in UNIX_TIMESTAMP
- String fieldSQL = "min("+this.getUnixTimestampConversion(field)+")";
- if(alias != null){
- /**fieldSQL = fieldSQL + " as "+alias;*/
- fieldSQL = fieldSQL +this.getDefaultAliasFieldKeyword()+alias;
- }
- this.engineAddSelectField(null,fieldSQL,null,false,true);
- this.fieldNames.add(alias);
- return this;
- }
- @Override
- public ISQLQueryObject addSelectSumTimestampField(String field, String alias)
- throws SQLQueryObjectException {
- if(field==null)
- throw new SQLQueryObjectException(SQLQueryObjectCore.FIELD_DEVE_ESSERE_DIVERSO_NULL);
- // Trasformo in UNIX_TIMESTAMP
- String fieldSQL = "sum("+this.getUnixTimestampConversion(field)+")";
- if(alias != null){
- /**fieldSQL = fieldSQL + " as "+alias;*/
- fieldSQL = fieldSQL +this.getDefaultAliasFieldKeyword()+alias;
- }
- this.engineAddSelectField(null,fieldSQL,null,false,true);
- this.fieldNames.add(alias);
- return this;
- }
-
-
-
-
-
-
- @Override
- public ISQLQueryObject addFromTable(ISQLQueryObject subSelect)
- throws SQLQueryObjectException {
- StringBuilder bf = new StringBuilder();
- bf.append(" ( ");
- bf.append(subSelect.createSQLQuery());
- bf.append(" ) ");
- this.addFromTable(bf.toString());
- return this;
- }
-
-
-
-
- @Override
- protected EscapeSQLConfiguration getEscapeSQLConfiguration(){
-
- EscapeSQLConfiguration config = new EscapeSQLConfiguration();
- config.addCharacter('_');
- config.addCharacter('%');
- config.addCharacter('\\');
- config.setUseEscapeClausole(true);
- config.setEscape('\\');
-
- // special
- config.addCharacterWithOtherEscapeChar('\'','\'');
-
- return config;
- }
-
-
-
-
-
-
-
-
-
-
- private SQLQueryObjectException newSQLQueryObjectExceptionDayFormatEnum(DayFormatEnum dayFormat) {
- return new SQLQueryObjectException("DayFormatEnum '"+dayFormat+"' unknown");
- }
- @Override
- public String getExtractDayFormatFromTimestampFieldPrefix(DayFormatEnum dayFormat) throws SQLQueryObjectException {
- if(dayFormat==null) {
- throw new SQLQueryObjectException("dayFormat undefined");
- }
- switch (dayFormat) {
- case FULL_DAY_NAME:
- return "DAYNAME(";
- case SHORT_DAY_NAME:
- return "DATE_FORMAT(";
- case DAY_OF_YEAR:
- return "DAYOFYEAR(";
- case DAY_OF_WEEK:
- return "DAYOFWEEK(";
- }
- throw newSQLQueryObjectExceptionDayFormatEnum(dayFormat);
- }
- @Override
- public String getExtractDayFormatFromTimestampFieldSuffix(DayFormatEnum dayFormat) throws SQLQueryObjectException {
- if(dayFormat==null) {
- throw new SQLQueryObjectException("dayFormat undefined");
- }
- switch (dayFormat) {
- case SHORT_DAY_NAME:
- return ", '%a')";
- case FULL_DAY_NAME:
- case DAY_OF_YEAR:
- case DAY_OF_WEEK:
- return ")";
- }
- throw newSQLQueryObjectExceptionDayFormatEnum(dayFormat);
- }
-
-
-
-
-
-
-
- @Override
- public String createSQLQuery() throws SQLQueryObjectException{
- return this.createSQLQuery(false);
- }
- private String createSQLQuery(boolean union) throws SQLQueryObjectException{
-
- this.precheckBuildQuery();
-
- StringBuilder bf = new StringBuilder();
-
- bf.append("SELECT ");
-
- // forzatura di indici
- Iterator<String> itForceIndex = this.forceIndexTableNames.iterator();
- while(itForceIndex.hasNext()){
- bf.append(" "+itForceIndex.next()+" ");
- }
-
- if(this.isSelectDistinct())
- bf.append(" DISTINCT ");
-
- // select field
- if(this.fields.isEmpty()){
- bf.append("*");
- }else{
- Iterator<String> it = this.fields.iterator();
- boolean first = true;
- while(it.hasNext()){
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(it.next());
- }
- }
-
- bf.append(getSQL(false,false,false,union));
-
- /**if( this.offset>=0 || this.limit>=0)
- // System.out.println("SQL ["+bf.toString()+"]");*/
-
- return bf.toString();
- }
-
-
-
- @Override
- public String createSQLDeleteEngine() throws SQLQueryObjectException {
- StringBuilder bf = new StringBuilder();
-
- bf.append("DELETE ");
-
- bf.append(getSQL(true,false,false,false));
- return bf.toString();
- }
-
-
-
-
-
- /**
- * @return SQL
- * @throws SQLQueryObjectException
- */
- private String getSQL(boolean delete,boolean update,boolean conditions,boolean union) throws SQLQueryObjectException {
- StringBuilder bf = new StringBuilder();
- if(this.selectForUpdate){
- this.checkSelectForUpdate(update, delete, union);
- }
-
- if(!update && !conditions){
- // From
- bf.append(SQLQueryObjectCore.FROM_SEPARATOR);
-
- // Table dove effettuare la ricerca 'FromTable'
- if(this.tables.isEmpty()){
- throw new SQLQueryObjectException(SQLQueryObjectCore.TABELLA_RICERCA_FROM_NON_DEFINITA);
- }else{
- if(delete && this.tables.size()>2)
- throw new SQLQueryObjectException("Non e' possibile effettuare una delete con piu' di una tabella alla volta");
- Iterator<String> it = this.tables.iterator();
- boolean first = true;
- while(it.hasNext()){
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(it.next());
- }
- }
- }
-
- // Condizioni di Where
- if(!this.conditions.isEmpty()){
-
- if(!conditions)
- bf.append(SQLQueryObjectCore.WHERE_SEPARATOR);
-
- if(this.notBeforeConditions){
- bf.append("NOT (");
- }
-
- for(int i=0; i<this.conditions.size(); i++){
- if(i>0){
- if(this.andLogicOperator){
- bf.append(SQLQueryObjectCore.AND_SEPARATOR);
- }else{
- bf.append(SQLQueryObjectCore.OR_SEPARATOR);
- }
- }
- bf.append(this.conditions.get(i));
- }
-
- if(this.notBeforeConditions){
- bf.append(")");
- }
- }
-
- // Condizione GroupBy
- if((!this.getGroupByConditions().isEmpty()) && (!delete) && (!update) && (!conditions)){
- bf.append(SQLQueryObjectCore.GROUP_BY_SEPARATOR);
- Iterator<String> it = this.getGroupByConditions().iterator();
- boolean first = true;
- while(it.hasNext()){
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(it.next());
- }
- }
-
- // Condizione OrderBy
- /** if(union==false){ La condizione di OrderBy DEVE essere generata. In SQLServer e MySQL viene generata durante la condizione di LIMIT/OFFSET*/
- // NOTA: L'order by insieme al LIMIT e OFFSET, all'interno di sotto-select come in questo caso della union, funziona solo con HSQL 2.x
- if((!this.orderBy.isEmpty()) && (!delete) && (!update) && (!conditions) ){
- bf.append(SQLQueryObjectCore.ORDER_BY_SEPARATOR);
- Iterator<String> it = this.orderBy.iterator();
- boolean first = true;
- while(it.hasNext()){
- String column = it.next();
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(column);
- boolean sortTypeAsc = this.sortTypeAsc;
- if(this.orderBySortType.containsKey(column)){
- sortTypeAsc = this.orderBySortType.get(column);
- }
- if(sortTypeAsc){
- bf.append(SQLQueryObjectCore.ASC_SEPARATOR);
- }else{
- bf.append(SQLQueryObjectCore.DESC_SEPARATOR);
- }
- }
- }
- /** }*/
-
- // Limit e Offset
- /**if(this.limit>0 || this.offset>0){*/
- // Rilascio vincolo di order by in caso di limit impostato.
- // Il vincolo rimane per l'offset, per gestire le select annidate di qualche implementazioni come Oracle,SQLServer ...
- if(this.offset>=0 &&
- (this.orderBy.isEmpty())
- ){
- throw new SQLQueryObjectException(SQLQueryObjectCore.CONDIZIONI_ORDER_BY_RICHESTE);
- }
-
-
- // Offset
- if((this.offset>=0) && (!delete) && (!update) && (!conditions)){
- bf.append(" OFFSET ");
- bf.append(this.offset);
- bf.append(" ROWS ");
- }
-
- // Limit (con offset)
- if((this.limit>0) && (!delete) && (!update) && (!conditions)){
- bf.append(" FETCH NEXT ");
- bf.append(this.limit);
- bf.append(" ROWS ONLY ");
- }
-
- // ForUpdate
- if(!conditions &&
- (this.selectForUpdate)
- ){
- bf.append(" FOR UPDATE ");
- }
-
- return bf.toString();
- }
-
-
-
- @Override
- public String createSQLUnion(boolean unionAll,
- ISQLQueryObject... sqlQueryObject) throws SQLQueryObjectException {
-
- // Controllo parametro su cui effettuare la UNION
- this.checkUnionField(false,sqlQueryObject);
-
- if(this.selectForUpdate){
- this.checkSelectForUpdate(false, false, true);
- }
-
- StringBuilder bf = new StringBuilder();
-
- bf.append("SELECT ");
-
- // Non ha senso, la union fa gia la distinct, a meno di usare la unionAll ma in quel caso non si vuole la distinct
- /** if(this.isSelectDistinct())
- // bf.append(" DISTINCT ");*/
-
- // forzatura di indici
- Iterator<String> itForceIndex = this.forceIndexTableNames.iterator();
- while(itForceIndex.hasNext()){
- bf.append(" "+itForceIndex.next()+" ");
- }
-
- // select field
- if(this.fields.isEmpty()){
- bf.append("*");
- }else{
- Iterator<String> it = this.fields.iterator();
- boolean first = true;
- while(it.hasNext()){
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(it.next());
- }
- }
-
- bf.append(SQLQueryObjectCore.FROM_SEPARATOR_APERTURA);
-
- for(int i=0; i<sqlQueryObject.length; i++){
-
- if(((DerbyQueryObject)sqlQueryObject[i]).selectForUpdate){
- try{
- ((DerbyQueryObject)sqlQueryObject[i]).checkSelectForUpdate(false, false, true);
- }catch(Exception e){
- throw new SQLQueryObjectException("Parametro SqlQueryObject["+i+"] non valido: "+e.getMessage());
- }
- }
-
- if(i>0){
- bf.append(" UNION ");
- if(unionAll){
- bf.append(" ALL ");
- }
- }
-
- bf.append("( ");
-
- bf.append(((DerbyQueryObject)sqlQueryObject[i]).createSQLQuery(true));
-
- bf.append(") ");
- }
-
- bf.append(SQLQueryObjectCore.AS_SUBQUERY_SUFFIX+getSerial()+" ");
-
- // Condizione GroupBy
- if((!this.getGroupByConditions().isEmpty()) ){
- bf.append(SQLQueryObjectCore.GROUP_BY_SEPARATOR);
- Iterator<String> it = this.getGroupByConditions().iterator();
- boolean first = true;
- while(it.hasNext()){
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(it.next());
- }
- }
-
- // Condizione OrderBy
- if(!this.orderBy.isEmpty()){
- bf.append(SQLQueryObjectCore.ORDER_BY_SEPARATOR);
- Iterator<String> it = this.orderBy.iterator();
- boolean first = true;
- while(it.hasNext()){
- String column = it.next();
- if(!first)
- bf.append(",");
- else
- first = false;
- bf.append(column);
- boolean sortTypeAsc = this.sortTypeAsc;
- if(this.orderBySortType.containsKey(column)){
- sortTypeAsc = this.orderBySortType.get(column);
- }
- if(sortTypeAsc){
- bf.append(SQLQueryObjectCore.ASC_SEPARATOR);
- }else{
- bf.append(SQLQueryObjectCore.DESC_SEPARATOR);
- }
- }
- }
-
- // Limit e Offset
- /**if(this.limit>0 || this.offset>0){*/
- // Rilascio vincolo di order by in caso di limit impostato.
- // Il vincolo rimane per l'offset, per gestire le select annidate di qualche implementazioni come Oracle,SQLServer ...
- if(this.offset>=0 &&
- (this.orderBy.isEmpty())
- ){
- throw new SQLQueryObjectException(SQLQueryObjectCore.CONDIZIONI_ORDER_BY_RICHESTE);
- }
-
- // Offset
- if(this.offset>=0){
- bf.append(" OFFSET ");
- bf.append(this.offset);
- bf.append(" ROWS ");
- }
-
- // Limit
- if(this.limit>0){
- bf.append(" FETCH NEXT ");
- bf.append(this.limit);
- bf.append(" ROWS ONLY ");
- }
-
- return bf.toString();
-
- }
- @Override
- public String createSQLUnionCount(boolean unionAll, String aliasCount,
- ISQLQueryObject... sqlQueryObject) throws SQLQueryObjectException {
- // Controllo parametro su cui effettuare la UNION
- this.checkUnionField(true,sqlQueryObject);
-
- if(aliasCount==null){
- throw new SQLQueryObjectException("Alias per il count non definito");
- }
-
- StringBuilder bf = new StringBuilder();
-
- bf.append("SELECT count(*) "+this.getDefaultAliasFieldKeyword()+" ");
- bf.append(aliasCount);
- bf.append(SQLQueryObjectCore.FROM_SEPARATOR_APERTURA);
-
- bf.append( this.createSQLUnion(unionAll, sqlQueryObject) );
-
- bf.append(SQLQueryObjectCore.AS_SUBQUERY_SUFFIX+getSerial()+" ");
-
- return bf.toString();
- }
-
-
-
- @Override
- public String createSQLUpdateEngine() throws SQLQueryObjectException {
- StringBuilder bf = new StringBuilder();
- bf.append("UPDATE ");
- bf.append(this.updateTable);
- bf.append(" SET ");
- for(int i=0; i<this.updateFieldsName.size(); i++){
- if(i>0)
- bf.append(" , ");
- bf.append(this.updateFieldsName.get(i));
- bf.append(" = ");
- bf.append(this.updateFieldsValue.get(i));
- }
- bf.append(getSQL(false,true,false,false));
- return bf.toString();
- }
-
-
-
- /* ---------------- WHERE CONDITIONS ------------------ */
-
- @Override
- public String createSQLConditionsEngine() throws SQLQueryObjectException {
-
- StringBuilder bf = new StringBuilder();
- bf.append(getSQL(false,false,true,false));
- return bf.toString();
- }
-
-
-
-
-
-
- }