/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hp.hpl.jena.sparql.sse.builders;
import java.util.ArrayList ;
import java.util.List ;
import com.hp.hpl.jena.query.ResultSet ;
import com.hp.hpl.jena.sparql.core.Var ;
import com.hp.hpl.jena.sparql.engine.QueryIterator ;
import com.hp.hpl.jena.sparql.engine.ResultSetStream ;
import com.hp.hpl.jena.sparql.engine.binding.Binding ;
import com.hp.hpl.jena.sparql.engine.iterator.QueryIterPlainWrapper ;
import com.hp.hpl.jena.sparql.sse.Item ;
import com.hp.hpl.jena.sparql.sse.ItemList ;
import com.hp.hpl.jena.sparql.sse.Tags ;
public class BuilderResultSet
{
public static ResultSet build(Item item)
{
BuilderLib.checkTagged(item, Tags.tagResultSet, "Not a (resultset ...)") ;
ItemList list = item.getList() ;
List<Var> vars = BuilderNode.buildVarList(list.get(1)) ;
// skip tag, skip vars.
int start = 2 ;
List<Binding> bindings = new ArrayList<Binding>() ;
for ( int i = start ; i < list.size() ; i++ )
{
Item itemRow = list.get(i) ;
Binding b = BuilderBinding.build(itemRow) ;
bindings.add(b) ;
}
QueryIterator qIter = new QueryIterPlainWrapper(bindings.listIterator()) ;
return new ResultSetStream(Var.varNames(vars), null, qIter) ;
}
}