/*
 * Copyright 2005-2010 the original author or authors.
 *
 * 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.springframework.ws.server.endpoint.adapter.method.dom;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.springframework.core.MethodParameter;
import org.springframework.ws.server.endpoint.adapter.method.AbstractPayloadMethodProcessorTestCase;
import org.springframework.ws.server.endpoint.adapter.method.AbstractPayloadSourceMethodProcessor;
import org.springframework.ws.server.endpoint.annotation.RequestPayload;
import org.springframework.ws.server.endpoint.annotation.ResponsePayload;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public class DomPayloadMethodProcessorTest extends AbstractPayloadMethodProcessorTestCase {

	@Override
	protected AbstractPayloadSourceMethodProcessor createProcessor() {
		return new DomPayloadMethodProcessor();
	}

	@Override
	protected MethodParameter[] createSupportedParameters() throws NoSuchMethodException {
		return new MethodParameter[]{
				new MethodParameter(getClass().getMethod("element", Element.class), 0)};
	}

	@Override
	protected MethodParameter[] createSupportedReturnTypes() throws NoSuchMethodException {
		return new MethodParameter[]{new MethodParameter(getClass().getMethod("element", Element.class), -1)};
	}

	@Override
	protected void testArgument(Object argument, MethodParameter parameter) {
		assertTrue("argument not a element", argument instanceof Element);
		Element element = (Element) argument;
		assertEquals("Invalid namespace", NAMESPACE_URI, element.getNamespaceURI());
		assertEquals("Invalid local name", LOCAL_NAME, element.getLocalName());
	}

	@Override
	protected Element getReturnValue(MethodParameter returnType) throws ParserConfigurationException {
		DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
		DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
		Document document = documentBuilder.newDocument();
		return document.createElementNS(NAMESPACE_URI, LOCAL_NAME);
	}

	@ResponsePayload
	public Element element(@RequestPayload Element element) {
		return element;
	}

}