svn commit: r161687 - jakarta/commons/proper/betwixt/trunk/src/test/org/apache/commons/betwixt/TestReferenceMapping.java

[rd...@apache.org]

Author: rdonkin
Date: Sun Apr 17 12:51:06 2005
New Revision: 161687

URL: http://svn.apache.org/viewcvs?view=rev&rev=161687
Log:
Added support for polymorphic elements. Contributed by Thomas Dudziak. Bugzilla issue #34443.

Added:
    jakarta/commons/proper/betwixt/trunk/src/test/org/apache/commons/betwixt/TestReferenceMapping.java

Added: jakarta/commons/proper/betwixt/trunk/src/test/org/apache/commons/betwixt/TestReferenceMapping.java
URL: http://svn.apache.org/viewcvs/jakarta/commons/proper/betwixt/trunk/src/test/org/apache/commons/betwixt/TestReferenceMapping.java?view=auto&rev=161687
==============================================================================
--- jakarta/commons/proper/betwixt/trunk/src/test/org/apache/commons/betwixt/TestReferenceMapping.java (added)
+++ jakarta/commons/proper/betwixt/trunk/src/test/org/apache/commons/betwixt/TestReferenceMapping.java Sun Apr 17 12:51:06 2005
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2005 The Apache Software Foundation.
+ * 
+ * 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 org.apache.commons.betwixt;
+
+
+import java.beans.IntrospectionException;
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+
+import org.apache.commons.betwixt.io.BeanReader;
+import org.apache.commons.betwixt.io.BeanWriter;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/**
+ * Tests the multi-mapping of polymorphic references.
+ * 
+ * @author Thomas Dudziak (tomdz at apache.org)
+ */
+public class TestReferenceMapping extends AbstractTestCase
+{
+    public static class Container
+    {
+        private Element _element1;
+        private Element _element2;
+
+        public Element getElement1()
+        {
+            return _element1;
+        }
+
+        public void setElement1(Element element)
+        {
+            _element1 = element;
+        }
+
+        public Element getElement2()
+        {
+            return _element2;
+        }
+
+        public void setElement2(Element element)
+        {
+            _element2 = element;
+        }
+    }
+
+    public static interface Element
+    {}
+
+    public static class ElementA implements Element
+    {}
+
+    public static class ElementB implements Element
+    {}
+
+    private static final String MAPPING =
+        "<?xml version=\"1.0\"?>\n"+
+        "<betwixt-config>\n"+
+        "  <class name=\"org.apache.commons.betwixt.TestReferenceMapping$Container\">\n"+
+        "    <element name=\"container\">\n"+
+        "      <element property=\"element1\"/>\n"+
+        "      <element name=\"element2\" property=\"element2\"/>\n"+
+        "    </element>\n"+
+        "  </class>\n"+
+        "  <class name=\"org.apache.commons.betwixt.TestReferenceMapping$ElementA\">\n"+
+        "    <element name=\"elementA\"/>\n"+
+        "  </class>\n"+
+        "  <class name=\"org.apache.commons.betwixt.TestReferenceMapping$ElementB\">\n"+
+        "    <element name=\"elementB\"/>\n"+
+        "  </class>\n"+
+        "</betwixt-config>";
+    private static final String EXPECTED =
+        "<?xml version=\"1.0\" ?>\n"+
+        "  <container>\n"+
+        "    <elementB/>\n"+
+        "    <element2/>\n"+
+        "  </container>\n";
+    
+    public TestReferenceMapping(String testName)
+    {
+        super(testName);
+    }
+
+    public void testRoundTripWithSingleMappingFile() throws IOException, SAXException, IntrospectionException
+    {
+        Container container = new Container();
+
+        container.setElement1(new ElementB());
+        container.setElement2(new ElementA());
+
+        StringWriter outputWriter = new StringWriter();
+
+        outputWriter.write("<?xml version=\"1.0\" ?>\n");
+
+        BeanWriter beanWriter = new BeanWriter(outputWriter);
+
+        beanWriter.enablePrettyPrint();
+        beanWriter.setWriteEmptyElements(true);
+        beanWriter.getBindingConfiguration().setMapIDs(false);
+        beanWriter.getXMLIntrospector().register(new InputSource(new StringReader(MAPPING)));
+        beanWriter.write(container);
+
+        String output = outputWriter.toString();
+
+        assertEquals(EXPECTED, output);
+            
+        BeanReader beanReader = new BeanReader();
+
+        beanReader.registerMultiMapping(new InputSource(new StringReader(MAPPING)));
+
+        StringReader xmlReader = new StringReader(output);
+
+        container = (Container)beanReader.parse(xmlReader);
+
+        assertTrue(container.getElement1() instanceof ElementB);
+        // betwixt cannot know which type the element has
+        assertNull(container.getElement2());
+    }
+}



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