/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* Licensed 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 cascading.operation.xml;
import java.io.IOException;
import java.util.Iterator;
import cascading.CascadingTestCase;
import cascading.operation.Filter;
import cascading.operation.Function;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
import org.junit.Test;
/**
*
*/
public class XPathTest extends CascadingTestCase
{
public XPathTest()
{
}
@Test
public void testParserMultipleXPaths() throws IOException
{
String[][] namespaces = {new String[]{"a", "http://foo.com/a"},
new String[]{"b", "http://bar.com/b"}};
String xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
"<document xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:a=\"http://foo.com/a\" xmlns:b=\"http://bar.com/b\" xmlns=\"http://baz.com/c\">" +
" <a:top>" +
" <a:first>first-value</a:first>" +
" <a:second>" +
" <b:top-first>nested-top-first</b:top-first>" +
" <b:top-second>nested-top-second</b:top-second>" +
" </a:second>" +
" </a:top>" +
"</document>";
Function function = new XPathParser( new Fields( "first", "second" ), namespaces, "//a:top/a:first/text()", "//a:second/b:top-second/text()" );
Tuple tuple = invokeFunction( function, new Tuple( xml ), new Fields( "first", "second" ) ).iterator().next();
assertEquals( "first-value", tuple.getString( 0 ) );
assertEquals( "nested-top-second", tuple.getString( 1 ) );
}
@Test
public void testGeneratorMultipleXPaths() throws IOException
{
String[][] namespaces = {new String[]{"a", "http://foo.com/a"},
new String[]{"b", "http://bar.com/b"}};
String xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
"<document xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:a=\"http://foo.com/a\" xmlns:b=\"http://bar.com/b\" xmlns=\"http://baz.com/c\">" +
" <a:top>" +
" <a:first>first-value</a:first>" +
" <a:first>first-value</a:first>" +
" <a:second>" +
" <b:top-first>nested-top-first</b:top-first>" +
" <b:top-second>nested-top-second</b:top-second>" +
" </a:second>" +
" </a:top>" +
"</document>";
Function function = new XPathGenerator( new Fields( "first" ), namespaces, "//a:top/a:first/text()", "//a:second/b:top-second/text()" );
Iterator<Tuple> tupleIterator = invokeFunction( function, new Tuple( xml ), new Fields( "first" ) ).iterator();
assertEquals( "first-value", tupleIterator.next().getString( 0 ) );
assertEquals( "first-value", tupleIterator.next().getString( 0 ) );
assertEquals( "nested-top-second", tupleIterator.next().getString( 0 ) );
}
@Test
public void testFilterXPaths()
{
String[][] namespaces = {new String[]{"a", "http://foo.com/a"},
new String[]{"b", "http://bar.com/b"}};
String xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
"<document xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:a=\"http://foo.com/a\" xmlns:b=\"http://bar.com/b\" xmlns=\"http://baz.com/c\">" +
" <a:top>" +
" <a:first>first-value</a:first>" +
" <a:second>" +
" <b:top-first>nested-top-first</b:top-first>" +
" <b:top-second>nested-top-second</b:top-second>" +
" </a:second>" +
" </a:top>" +
"</document>";
Filter filter = new XPathFilter( namespaces, "//a:top/a:first/text() != 'first-value'" );
assertTrue( invokeFilter( filter, new Tuple( xml ) ) );
}
}