/*
 * 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.soap.server.endpoint.adapter.method;

import java.util.List;
import javax.xml.namespace.QName;

import org.springframework.core.MethodParameter;
import org.springframework.ws.context.MessageContext;
import org.springframework.ws.server.endpoint.adapter.method.AbstractMethodArgumentResolverTestCase;
import org.springframework.ws.soap.SoapHeaderElement;
import org.springframework.ws.soap.SoapMessage;
import org.springframework.ws.soap.server.endpoint.annotation.SoapHeader;

import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 * @author Tareq Abedrabbo
 */
public class SoapHeaderElementMethodArgumentResolverTest extends AbstractMethodArgumentResolverTestCase {

	private static final QName HEADER_QNAME = new QName(NAMESPACE_URI, "header");

	private static final String HEADER_CONTENT = "content";

	private SoapHeaderElementMethodArgumentResolver resolver;

	private MessageContext messageContext;

	private MethodParameter soapHeaderWithEmptyValue;

	private MethodParameter soapHeaderElementParameter;

	private MethodParameter soapHeaderElementListParameter;

	private MethodParameter soapHeaderMismatch;

	private MethodParameter soapHeaderMismatchList;

	@Before
	public void setUp() throws Exception {
		resolver = new SoapHeaderElementMethodArgumentResolver();
		messageContext = createSaajMessageContext();
		SoapMessage message = (SoapMessage) messageContext.getRequest();
		for (int i = 0; i < 3; i++) {
			SoapHeaderElement element = message.getSoapHeader().addHeaderElement(HEADER_QNAME);
			element.setText(HEADER_CONTENT + i);
		}
		soapHeaderWithEmptyValue =
				new MethodParameter(getClass().getMethod("soapHeaderWithEmptyValue", SoapHeaderElement.class), 0);
		soapHeaderElementParameter =
				new MethodParameter(getClass().getMethod("soapHeaderElement", SoapHeaderElement.class), 0);
		soapHeaderElementListParameter =
				new MethodParameter(getClass().getMethod("soapHeaderElementList", List.class), 0);
		soapHeaderMismatch =
				new MethodParameter(getClass().getMethod("soapHeaderMismatch", SoapHeaderElement.class), 0);
		soapHeaderMismatchList = new MethodParameter(getClass().getMethod("soapHeaderMismatchList", List.class), 0);
	}

	@Test
	public void supportsParameter() throws Exception {
		assertTrue("resolver does not support soapHeaderElement",
				resolver.supportsParameter(soapHeaderElementParameter));
		assertTrue("resolver does not support List<soapHeaderElement>",
				resolver.supportsParameter(soapHeaderElementListParameter));
	}

	@Test(expected = IllegalArgumentException.class)
	public void failOnEmptyValue() throws Exception {
		resolver.resolveArgument(messageContext, soapHeaderWithEmptyValue);
	}

	@Test
	public void resolveSoapHeaderElement() throws Exception {
		Object result = resolver.resolveArgument(messageContext, soapHeaderElementParameter);

		assertTrue("result must be a SoapHeaderElement", SoapHeaderElement.class.isAssignableFrom(result.getClass()));

		SoapHeaderElement element = (SoapHeaderElement) result;

		assertTrue("headers must be equal", element.getName().equals(HEADER_QNAME));
		assertEquals("header text must be equal to [" + HEADER_CONTENT + "0]", HEADER_CONTENT + "0", element.getText());
	}

	@Test
	@SuppressWarnings("unchecked")
	public void resolveSoapHeaderElementList() throws Exception {
		Object result = resolver.resolveArgument(messageContext, soapHeaderElementListParameter);

		assertTrue("result must be a List", List.class.isAssignableFrom(result.getClass()));

		List<SoapHeaderElement> elements = (List) result;

		assertTrue("size", elements.size() > 1);
		for (int i = 0; i < elements.size(); i++) {
			SoapHeaderElement element = elements.get(i);
			assertTrue("headers must be equal", element.getName().equals(HEADER_QNAME));
			assertEquals("header must be equal to [" + HEADER_CONTENT + i + "]", HEADER_CONTENT + i,
					elements.get(i).getText());
		}
	}

	@Test
	public void resolveSoapHeaderMismatch() throws Exception {
		Object result = resolver.resolveArgument(messageContext, soapHeaderMismatch);
		assertNull(result);
	}

	@Test
	public void resolveSoapHeaderMismatchList() throws Exception {
		Object result = resolver.resolveArgument(messageContext, soapHeaderMismatchList);
		assertTrue("result must be a List", List.class.isAssignableFrom(result.getClass()));
		assertTrue("result List must be empty", ((List<?>) result).isEmpty());
	}

	public void soapHeaderWithEmptyValue(@SoapHeader("") SoapHeaderElement element) {
	}

	public void soapHeaderElement(@SoapHeader("{http://springframework.org/ws}header") SoapHeaderElement element) {
	}

	public void soapHeaderElementList(@SoapHeader(
			"{http://springframework.org/ws}header") List<SoapHeaderElement> elements) {
	}

	public void soapHeaderMismatch(@SoapHeader("{http://springframework.org/ws}xxx") SoapHeaderElement element) {
	}

	public void soapHeaderMismatchList(@SoapHeader(
			"{http://springframework.org/ws}xxx") List<SoapHeaderElement> elements) {
	}


}