/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.etk.component.database;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author Tuan Nguyen (tuan08@users.sourceforge.net)
* @since Nov 25, 2004
* @version $Id: ObjectQuery.java 6006 2006-06-06 10:01:27Z thangvn $
*/
public class ObjectQuery
{
private static SimpleDateFormat ft_ = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
private Class type_;
private String orderBy_;
private String groupBy_;
private List<Parameter> parameters_;
private List<Parameter> selectParameter_;
public ObjectQuery(Class type)
{
type_ = type;
parameters_ = new ArrayList<Parameter>(3);
selectParameter_ = new ArrayList<Parameter>(10);
}
public ObjectQuery addEQ(String field, Object value)
{
if (value != null)
{
parameters_.add(new Parameter(" = ", field, value));
}
return this;
}
public ObjectQuery addGT(String field, Object value)
{
if (value != null)
{
parameters_.add(new Parameter(" > ", field, value));
}
return this;
}
public ObjectQuery addLT(String field, Object value)
{
if (value != null)
{
parameters_.add(new Parameter(" < ", field, value));
}
return this;
}
public ObjectQuery addLIKE(String field, String value)
{
if (value != null && value.length() > 0)
{
parameters_.add(new Parameter(" LIKE ", field, optimizeInputString(value)));
}
return this;
}
public String optimizeInputString(String value)
{
value = value.replace('*', '%');
return value;
}
public ObjectQuery addSUM(String field)
{
selectParameter_.add(new Parameter("SUM", field));
return this;
}
public ObjectQuery addSelect(String field)
{
selectParameter_.add(new Parameter("FIELDSELECT", field));
return this;
}
public ObjectQuery addSelectCount(String type)
{
selectParameter_.add(new Parameter("COUNTSELECT", type));
return this;
}
public ObjectQuery addSelectMaxMin(String op, String field)
{
selectParameter_.add(new Parameter(op, field));
return this;
}
public ObjectQuery setGroupBy(String field)
{
groupBy_ = " GROUP BY o." + field;
return this;
}
public ObjectQuery setAscOrderBy(String field)
{
orderBy_ = " ORDER BY o." + field + " asc";
return this;
}
public ObjectQuery setDescOrderBy(String field)
{
orderBy_ = " ORDER BY o." + field + " desc";
return this;
}
public String getHibernateQuery()
{
StringBuffer b = new StringBuffer();
b.append("from o in class ").append(type_.getName());
if (parameters_.size() > 0)
{
b.append(" WHERE ");
for (int i = 0; i < parameters_.size(); i++)
{
if (i > 0)
b.append(" AND ");
Parameter p = parameters_.get(i);
if (p.value_ instanceof String)
{
if (p.field_.startsWith("UPPER") || p.field_.startsWith("LOWER"))
{
b.append(p.field_).append(p.op_).append("'").append(p.value_).append("'");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append("'").append(p.value_).append("'");
}
}
else if (p.value_ instanceof Date)
{
String value = ft_.format((Date)p.value_);
b.append(" o.").append(p.field_).append(p.op_).append("'").append(value).append("'");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(p.value_);
}
}
}
if (orderBy_ != null)
b.append(orderBy_);
return b.toString();
}
/**
*
* @return
*/
public String getHibernateQueryWithBinding()
{
StringBuffer b = new StringBuffer();
b.append("from o in class ").append(type_.getName());
if (parameters_.size() > 0)
{
b.append(" WHERE ");
for (int i = 0; i < parameters_.size(); i++)
{
if (i > 0)
b.append(" AND ");
Parameter p = parameters_.get(i);
if (p.value_ instanceof String)
{
if (p.field_.startsWith("UPPER") || p.field_.startsWith("LOWER"))
{
b.append(p.field_).append(p.op_).append(":").append(p.field_.substring(6, p.field_.length() - 1))
.append(i);
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(":").append(p.field_).append(i);
}
}
else if (p.value_ instanceof Date)
{
String value = ft_.format((Date)p.value_);
b.append(" o.").append(p.field_).append(p.op_).append("'").append(value).append("'");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(p.value_);
}
}
}
if (orderBy_ != null)
{
b.append(orderBy_);
}
return b.toString();
}
/**
*
* @return
*/
public Map<String, Object> getBindingFields()
{
Map<String, Object> binding = new HashMap<String, Object>();
if (parameters_.size() > 0)
{
for (int i = 0; i < parameters_.size(); i++)
{
Parameter p = parameters_.get(i);
if (p.value_ instanceof String)
{
if (p.field_.startsWith("UPPER") || p.field_.startsWith("LOWER"))
{
binding.put(p.field_.substring(6, p.field_.length() - 1) + i, p.value_);
}
else
{
binding.put(p.field_ + i, p.value_);
}
}
}
}
return binding;
}
public String getHibernateGroupByQuery()
{
StringBuffer b = new StringBuffer();
b.append("select ");
if (selectParameter_.size() > 0)
{
for (int i = 0; i < selectParameter_.size(); i++)
{
Parameter p = selectParameter_.get(i);
if (p.op_.equals("fieldselect"))
{
b.append("o.").append(p.field_);
}
else if (p.op_.equals("countselect"))
{
b.append("COUNT");
if (!(p.field_.equals("")) || p.field_.length() > 0)
{
b.append("(").append(p.field_).append(" o)");
}
else
{
b.append("(o)");
}
}
else
{
b.append(p.op_).append("(").append("o.").append(p.field_).append(") ");
}
if (i < selectParameter_.size() - 1)
b.append(" , ");
}
}
b.append(" from o in class ").append(type_.getName());
if (parameters_.size() > 0)
{
b.append(" where ");
for (int i = 0; i < parameters_.size(); i++)
{
if (i > 0)
b.append(" and ");
Parameter p = parameters_.get(i);
if (p.value_ instanceof String)
{
b.append(" o.").append(p.field_).append(p.op_).append("'").append(p.value_).append("'");
}
else if (p.value_ instanceof Date)
{
String value = ft_.format((Date)p.value_);
b.append(" o.").append(p.field_).append(p.op_).append("'").append(value).append("'");
}
else if (p.op_.equals("MAX") || p.op_.equals("MIN"))
{
b.append(p.op_).append("(").append("o.").append(p.field_).append(") ");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(p.value_);
}
}
}
if (groupBy_ != null)
b.append(groupBy_);
if (orderBy_ != null)
b.append(orderBy_);
return b.toString();
}
public String getHibernateCountQuery()
{
StringBuffer b = new StringBuffer();
b.append("SELECT COUNT(o) FROM o IN CLASS ").append(type_.getName());
if (parameters_.size() > 0)
{
b.append(" WHERE ");
for (int i = 0; i < parameters_.size(); i++)
{
if (i > 0)
b.append(" AND ");
Parameter p = parameters_.get(i);
if (p.value_ instanceof String)
{
if (p.field_.startsWith("UPPER") || p.field_.startsWith("LOWER"))
{
b.append(p.field_).append(p.op_).append("'").append(p.value_).append("'");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append("'").append(p.value_).append("'");
}
}
else if (p.value_ instanceof Date)
{
String value = ft_.format((Date)p.value_);
b.append(" o.").append(p.field_).append(p.op_).append("'").append(value).append("'");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(p.value_);
}
}
}
return b.toString();
}
/**
*
* @return
*/
public String getHibernateCountQueryWithBinding()
{
StringBuffer b = new StringBuffer();
b.append("SELECT COUNT(o) FROM o IN CLASS ").append(type_.getName());
if (parameters_.size() > 0)
{
b.append(" WHERE ");
for (int i = 0; i < parameters_.size(); i++)
{
if (i > 0)
b.append(" AND ");
Parameter p = parameters_.get(i);
if (p.value_ instanceof String)
{
if (p.field_.startsWith("UPPER") || p.field_.startsWith("LOWER"))
{
b.append(p.field_).append(p.op_).append(":").append(p.field_.substring(6, p.field_.length() - 1))
.append(i);
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(":").append(p.field_).append(i);
}
}
else if (p.value_ instanceof Date)
{
String value = ft_.format((Date)p.value_);
b.append(" o.").append(p.field_).append(p.op_).append("'").append(value).append("'");
}
else
{
b.append(" o.").append(p.field_).append(p.op_).append(p.value_);
}
}
}
return b.toString();
}
static class Parameter
{
String op_;
String field_;
String label_;
Object value_;
Parameter(String op, String field, Object value)
{
op_ = op;
field_ = field;
value_ = value;
}
Parameter(String op, String field)
{
op_ = op;
field_ = field;
}
}
}