src/test/java/tests/customext/elt/CustomExtElementSerializerTest.java

/*
 * 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 tests.customext.elt;

import junit.framework.TestCase;
import org.apache.ws.commons.schema.XmlSchema;
import org.apache.ws.commons.schema.XmlSchemaCollection;
import org.apache.ws.commons.schema.XmlSchemaElement;
import org.apache.ws.commons.schema.constants.Constants;
import org.w3c.dom.Document;
import tests.Resources;

import javax.xml.parsers.DocumentBuilderFactory;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.Iterator;
import java.util.Map;

/**
 *  Test class to run through the full cycle of build-serialize-build-check
 */
public class CustomExtElementSerializerTest extends TestCase {


    public void testSerialization() throws Exception {
        //set the system property for the custom extension registry
        System.setProperty(Constants.SystemConstants.EXTENSION_REGISTRY_KEY,
                CustomExtensionRegistry.class.getName());

        //create a DOM document
        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        documentBuilderFactory.setNamespaceAware(true);
        Document doc = documentBuilderFactory.newDocumentBuilder().
                parse(Resources.asURI("/external/externalElementAnnotations.xsd"));

        XmlSchemaCollection schemaCol = new XmlSchemaCollection();
        XmlSchema schema = schemaCol.read(doc,null);
        assertNotNull(schema);

        //now serialize it to a byte stream
        //and build a new document out of it
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        schema.write(baos);
        Document doc2 = documentBuilderFactory.newDocumentBuilder().
                parse(new ByteArrayInputStream(baos.toByteArray()));

        // we can't have two copies in the same collection.
        schemaCol = new XmlSchemaCollection();
        schema = schemaCol.read(doc2,null);
        assertNotNull(schema);

        // get the elements and check whether their annotations are properly
        // populated
        Iterator values = schema.getElements().getValues();
        while (values.hasNext()) {
            XmlSchemaElement elt =  (XmlSchemaElement) values.next();
            assertNotNull(elt);
            Map metaInfoMap = elt.getMetaInfoMap();
            assertNotNull(metaInfoMap);

            CustomElement customElt = (CustomElement)metaInfoMap.get(CustomElement.CUSTOM_ELT_QNAME);
            assertNotNull(customElt);

        }

        //remove our system property
        System.getProperties().remove(Constants.SystemConstants.EXTENSION_REGISTRY_KEY);

    }
}