| /* |
| * 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 org.apache.jena.query; |
| |
| import java.io.InputStream ; |
| import java.util.ArrayList ; |
| import java.util.List ; |
| |
| import org.apache.jena.rdf.model.Model ; |
| import org.apache.jena.rdf.model.ModelFactory ; |
| import org.apache.jena.sparql.core.Var ; |
| import org.apache.jena.sparql.engine.QueryIterator ; |
| import org.apache.jena.sparql.engine.ResultSetStream ; |
| import org.apache.jena.sparql.engine.binding.Binding ; |
| import org.apache.jena.sparql.engine.binding.BindingInputStream ; |
| import org.apache.jena.sparql.engine.iterator.QueryIterPlainWrapper ; |
| |
| public class BIOInput |
| { |
| private static Model m = ModelFactory.createDefaultModel() ; |
| |
| public static ResultSet fromBIO(InputStream input) |
| { |
| // Scan the stream for VARS and accumulate the total variables. |
| // Trade off of guessing first line is all the VARS and coping with |
| // anything possible. -> Cope with anything possible. |
| BindingInputStream bin = new BindingInputStream(input) ; |
| List<Binding> bindings = new ArrayList<>() ; |
| List<Var> vars = new ArrayList<>() ; |
| while(bin.hasNext()) |
| { |
| Binding b = bin.next(); |
| bindings.add(b) ; |
| for ( Var v : bin.vars() ) |
| { |
| if ( ! vars.contains(v) ) |
| vars.add(v) ; |
| } |
| } |
| QueryIterator qIter = new QueryIterPlainWrapper(bindings.iterator()) ; |
| return new ResultSetStream(Var.varNames(vars), m, qIter) ; |
| } |
| } |