| /* |
| * 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.engine.binding; |
| |
| import java.io.ByteArrayInputStream ; |
| import java.io.ByteArrayOutputStream ; |
| import java.util.ArrayList ; |
| import java.util.List ; |
| |
| import org.apache.jena.atlas.junit.BaseTest ; |
| import org.apache.jena.atlas.legacy.BaseTest2 ; |
| import org.apache.jena.graph.Node ; |
| import org.apache.jena.graph.NodeFactory ; |
| import org.apache.jena.riot.RiotException ; |
| import org.apache.jena.riot.system.PrefixMap ; |
| import org.apache.jena.riot.system.PrefixMapFactory ; |
| import org.apache.jena.riot.tokens.Tokenizer ; |
| import org.apache.jena.riot.tokens.TokenizerFactory ; |
| import org.apache.jena.sparql.core.Var ; |
| import org.apache.jena.sparql.graph.NodeConst ; |
| import org.apache.jena.sparql.resultset.ResultSetCompare ; |
| import org.apache.jena.sparql.sse.Item ; |
| import org.apache.jena.sparql.sse.SSE ; |
| import org.apache.jena.sparql.sse.builders.BuilderBinding ; |
| import org.apache.jena.sparql.util.NodeUtils ; |
| import org.junit.AfterClass ; |
| import org.junit.BeforeClass ; |
| import org.junit.Test ; |
| |
| |
| public class TestBindingStreams extends BaseTest |
| { |
| @BeforeClass public static void beforeClass() |
| { |
| BaseTest2.setTestLogging() ; |
| } |
| |
| @AfterClass public static void afterClass() |
| { |
| BaseTest2.unsetTestLogging() ; |
| } |
| |
| static Binding b12 = build("(?a 1) (?b 2)") ; |
| static Binding b19 = build("(?a 1) (?b 9)") ; |
| static Binding b02 = build("(?b 2)") ; |
| static Binding b10 = build("(?a 1)") ; |
| static Binding b0 = build("") ; |
| static Binding bb1 = build("(?a _:XYZ) (?b 1)"); |
| |
| static Binding bb2 = build("(?a 'a\"b\"c') (?b 1)"); |
| static Binding bb3 = build("(?a 'aΩc') (?b 1)"); |
| |
| static PrefixMap pmap = PrefixMapFactory.create() ; |
| static { |
| pmap.add(":", "http://example/") ; |
| } |
| |
| static Binding x10 = build("(?x <http://example/abc>)") ; |
| |
| @Test public void bindingStream_01() { testRead("VARS ?a ?b . 1 2 .", b12) ; } |
| @Test public void bindingStream_02() { testRead("VARS ?a ?b . - 2 .", b02) ; } |
| @Test public void bindingStream_03() { testRead("VARS ?a ?b . - 2 . 1 - . ", b02, b10) ; } |
| @Test public void bindingStream_04() { testRead("VARS ?a . 1 . VARS ?b . 2 . ", b10, b02) ; } |
| |
| @Test(expected=RiotException.class) |
| public void bindingStream_05() { testRead("VARS ?a ?b . 99 . ") ; } |
| @Test(expected=RiotException.class) |
| public void bindingStream_06() { testRead("VARS ?a ?b . 99 11 22 . ") ; } |
| |
| @Test public void bindingStream_10() { testRead("VARS ?a ?b . 1 2 . * 9 .", b12, b19) ; } |
| @Test public void bindingStream_11() { testRead("VARS ?a ?b ?c . 1 2 - . * 9 - .", b12, b19) ; } |
| |
| @Test |
| public void bindingStream_12() { |
| BindingMap b = BindingFactory.create(); |
| b.add(Var.alloc("a"), NodeConst.nodeTrue); |
| b.add(Var.alloc("c"), NodeConst.nodeFalse); |
| testRead("VARS ?a ?b ?c . true - false . ", b); |
| } |
| |
| @Test public void bindingStream_20() { testRead("PREFIX : <http://example/> . VARS ?x .\n:abc .\n- .", x10, b0) ; } |
| |
| @Test public void bindingStream_50() { testWriteRead(b12) ; } |
| @Test public void bindingStream_51() { testWriteRead(b0) ; } |
| @Test public void bindingStream_52() { testWriteRead(pmap, b12,x10,b19) ; } |
| |
| @Test public void bindingStream_60() { testWriteRead(bb1) ; } |
| |
| @Test |
| public void bindingStream_61() |
| { |
| BindingMap b = BindingFactory.create() ; |
| Node bn = NodeFactory.createBlankNode("unusual") ; |
| b.add(Var.alloc("v"), bn) ; |
| testWriteRead(b) ; |
| } |
| |
| @Test public void bindingStream_62() { testWriteRead(bb2) ; } |
| |
| @Test public void bindingStream_63() { testWriteRead(bb3) ; } |
| |
| |
| static void testRead(String x, Binding ... bindings) |
| { |
| Tokenizer t = TokenizerFactory.makeTokenizerString(x) ; |
| BindingInputStream inStream = new BindingInputStream(t) ; |
| |
| if ( bindings.length == 0 ) |
| { |
| for ( ; inStream.hasNext() ; ) |
| inStream.next() ; |
| return ; |
| } |
| |
| int i ; |
| for ( i = 0 ; inStream.hasNext() ; i++ ) |
| { |
| Binding b = inStream.next() ; |
| assertTrue("Bindings do not match: expected="+bindings[i]+" got="+b, equalBindings(bindings[i], b)) ; |
| } |
| |
| assertEquals("Wrong length: expect= "+bindings.length+" got="+i,bindings.length, i) ; |
| } |
| |
| static void testWriteRead(Binding ... bindings) { testWriteRead(null, bindings) ; } |
| |
| static void testWriteRead(PrefixMap prefixMap, Binding ... bindings) |
| { |
| ByteArrayOutputStream out = new ByteArrayOutputStream() ; |
| BindingOutputStream output = new BindingOutputStream(out, prefixMap) ; |
| |
| for ( Binding b : bindings ) |
| output.write(b) ; |
| output.flush() ; |
| |
| // When the going gets tough, the tough put in trace statements: |
| //System.out.println("T: \n"+out.toString()) ; |
| |
| ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()) ; |
| BindingInputStream input = new BindingInputStream(in) ; |
| |
| List<Binding> results = new ArrayList<>() ; |
| for ( ; input.hasNext() ; ) |
| { |
| results.add(input.next()) ; |
| } |
| assertEquals(bindings.length, results.size()) ; |
| for ( int i = 0 ; i < bindings.length ; i++ ) |
| { |
| Binding b1 = bindings[i] ; |
| Binding b2 = results.get(i) ; |
| assertTrue("Bindings do not match: expected="+b1+" got="+b2, equalBindings(b1, b2)) ; |
| } |
| } |
| |
| |
| private static boolean equalBindings(Binding binding1, Binding binding2) |
| { |
| // Need to have the exact same terms coming back (therefore we can't use BNodeIso to compare values) |
| return ResultSetCompare.equal(binding1, binding2, NodeUtils.sameNode) ; |
| } |
| |
| |
| private static Binding build(String string) |
| { |
| Item item = SSE.parse("(binding "+string+")") ; |
| return BuilderBinding.build(item) ; |
| } |
| } |