/*
* 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.algebra.table ;
import java.util.Iterator ;
import org.apache.jena.atlas.io.IndentedLineBuffer ;
import org.apache.jena.atlas.io.IndentedWriter ;
import com.hp.hpl.jena.graph.Node ;
import com.hp.hpl.jena.sparql.algebra.Table ;
import com.hp.hpl.jena.sparql.core.Var ;
import com.hp.hpl.jena.sparql.engine.Plan ;
import com.hp.hpl.jena.sparql.engine.QueryIterator ;
import com.hp.hpl.jena.sparql.engine.binding.Binding ;
import com.hp.hpl.jena.sparql.serializer.SerializationContext ;
import com.hp.hpl.jena.sparql.util.FmtUtils ;
public class TableWriter {
public static String asSSE(Table table) {
IndentedLineBuffer out = new IndentedLineBuffer() ;
TableWriter.output(table, out) ;
return out.asString() ;
}
public static void output(Table table, IndentedWriter out) {
output(table, out, null) ;
}
public static void output(Table table, IndentedWriter out, SerializationContext sCxt) {
if ( sCxt != null ) {} // Prefix. But then qnames are wrong.
out.print("(table") ;
out.incIndent() ;
QueryIterator qIter = table.iterator(null) ;
for (; qIter.hasNext();) {
out.println() ;
Binding binding = qIter.nextBinding() ;
output(binding, out, sCxt) ;
}
out.decIndent() ;
out.print(")") ;
}
private static void output(Binding binding, IndentedWriter out, SerializationContext sCxt) {
out.print("(row") ;
for (Iterator<Var> iter = binding.vars(); iter.hasNext();) {
Var v = iter.next() ;
Node n = binding.get(v) ;
out.print(" ") ;
out.print(Plan.startMarker2) ;
out.print(FmtUtils.stringForNode(v)) ;
out.print(" ") ;
out.print(FmtUtils.stringForNode(n)) ;
out.print(Plan.finishMarker2) ;
}
out.print(")") ;
}
}