| /* |
| * 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.sparql.sse.writers; |
| |
| import java.util.List ; |
| |
| import org.apache.jena.atlas.io.IndentedWriter ; |
| import org.apache.jena.graph.Node ; |
| import org.apache.jena.graph.Node_Triple; |
| import org.apache.jena.graph.Triple ; |
| import org.apache.jena.sparql.core.Quad ; |
| import org.apache.jena.sparql.core.Var ; |
| import org.apache.jena.sparql.serializer.SerializationContext ; |
| import org.apache.jena.sparql.sse.Tags ; |
| import org.apache.jena.sparql.util.FmtUtils ; |
| |
| public class WriterNode |
| { |
| private static final int NL = WriterLib.NL ; |
| private static final int NoNL = WriterLib.NoNL ; |
| private static final int NoSP = WriterLib.NoSP ; |
| |
| public static void output(IndentedWriter out, Triple triple, SerializationContext naming) |
| { |
| WriterLib.startOneLine(out, Tags.tagTriple) ; |
| outputPlain(out, triple, naming) ; |
| WriterLib.finishOneLine(out, Tags.tagTriple) ; |
| } |
| |
| public static void outputNoTag(IndentedWriter out, Triple triple, SerializationContext naming) |
| { |
| // No tag, with () |
| out.print("(") ; |
| outputPlain(out, triple, naming) ; |
| out.print(")") ; |
| } |
| |
| public static void outputPlain(IndentedWriter out, Triple triple, SerializationContext naming) |
| { |
| // No tag, no () |
| output(out, triple.getSubject(), naming) ; |
| out.print(" ") ; |
| output(out, triple.getPredicate(), naming) ; |
| out.print(" ") ; |
| output(out, triple.getObject(), naming) ; |
| } |
| |
| public static void output(IndentedWriter out, Quad quad, SerializationContext naming) |
| { |
| WriterLib.startOneLine(out, Tags.tagQuad) ; |
| outputPlain(out, quad, naming) ; |
| WriterLib.finishOneLine(out, Tags.tagQuad) ; |
| } |
| |
| public static void outputNoTag(IndentedWriter out, Quad quad, SerializationContext naming) |
| { |
| // No tag, with () |
| out.print("(") ; |
| outputPlain(out, quad, naming) ; |
| out.print(")") ; |
| } |
| |
| public static void outputPlain(IndentedWriter out, Quad quad, SerializationContext naming) |
| { |
| output(out, quad.getGraph(), naming) ; |
| out.print(" ") ; |
| output(out, quad.getSubject(), naming) ; |
| out.print(" ") ; |
| output(out, quad.getPredicate(), naming) ; |
| out.print(" ") ; |
| output(out, quad.getObject(), naming) ; |
| } |
| |
| public static void output(IndentedWriter out, Node node, SerializationContext naming) |
| { |
| if ( node.isNodeTriple() ) { |
| Triple t = Node_Triple.triple(node); |
| out.print("<< "); |
| output(out, t.getSubject(), naming); |
| out.print(" "); |
| output(out, t.getPredicate(), naming); |
| out.print(" "); |
| output(out, t.getObject(), naming); |
| out.print(" >>"); |
| } else |
| out.print(FmtUtils.stringForNode(node, naming)) ; |
| } |
| |
| public static void output(IndentedWriter out, List<Node> nodeList, SerializationContext naming) |
| { |
| out.print("(") ; |
| boolean first = true ; |
| for ( Node node : nodeList ) |
| { |
| if ( ! first ) |
| out.print(" ") ; |
| output(out, node, naming); |
| first = false ; |
| } |
| out.print(")") ; |
| } |
| |
| public static void outputVars(IndentedWriter out, List<Var> vars, SerializationContext sContext) |
| { |
| WriterLib.start(out, Tags.tagVars, WriterLib.NoSP) ; |
| for ( Var v : vars ) |
| { |
| out.print(" ?") ; |
| out.print(v.getVarName()) ; |
| } |
| WriterLib.finish(out, Tags.tagVars) ; |
| } |
| |
| } |