/*
* 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 org.apache.clerezza.triaxrs.blackbox;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.replay;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.WritableByteChannel;
import java.util.HashSet;
import java.util.Set;
import javax.ws.rs.Consumes;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.core.Application;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.Provider;
import junit.framework.Assert;
import org.easymock.EasyMock;
import org.junit.Test;
import org.apache.clerezza.triaxrs.JaxRsHandler;
import org.wymiwyg.wrhapi.HeaderName;
import org.wymiwyg.wrhapi.Method;
import org.wymiwyg.wrhapi.Request;
import org.wymiwyg.wrhapi.RequestURI;
import org.wymiwyg.wrhapi.Response;
import org.wymiwyg.wrhapi.util.MessageBody2Write;
/**
*
* @author hasan
*
* since version 0.5
*/
public class TestCascadingProviders {
static final String RESOURCE_PATH = "/rsrc";
static final String MESSAGE_1 = "My Message 1";
static final String MESSAGE_2 = "My Message 2";
static MyMessage receivedBody;
@Path(RESOURCE_PATH)
public static class MyResource {
@PUT
public void handlePut(MyMessage body) {
receivedBody = body;
}
}
public static interface MyMessage {
}
@Provider
@Consumes("application/x-mymessage")
public static class MyReader1 implements MessageBodyReader<MyMessage> {
@Override
public boolean isReadable(Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return MyMessage.class.isAssignableFrom(type);
}
@Override
public MyMessage readFrom(Class<MyMessage> type, Type genericType,
Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException,
WebApplicationException {
return new MyMessage() {
@Override
public String toString() {
return MESSAGE_1;
}
};
}
}
@Provider
@Consumes("application/x-mymessage")
public static class MyReader2 implements MessageBodyReader<MyMessage> {
@Override
public boolean isReadable(Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return MyMessage.class.isAssignableFrom(type);
}
@Override
public MyMessage readFrom(Class<MyMessage> type, Type genericType,
Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException,
WebApplicationException {
return new MyMessage() {
@Override
public String toString() {
return MESSAGE_2;
}
};
}
}
@Test
public void testCascadingProviders1() throws Exception {
JaxRsHandler handler = getJaxRsHandlerUsingRegComp("/foo", "/bar");
testCascadingProviders(handler, "/foo"+RESOURCE_PATH, MESSAGE_1);
handler = getJaxRsHandlerUsingApplConfig("/foo", "/bar");
testCascadingProviders(handler, "/foo"+RESOURCE_PATH, MESSAGE_1);
}
@Test
public void testCascadingProviders2() throws Exception {
JaxRsHandler handler = getJaxRsHandlerUsingRegComp("/foo/bar", "/foo");
testCascadingProviders(handler, "/foo/bar"+RESOURCE_PATH, MESSAGE_1);
handler = getJaxRsHandlerUsingApplConfig("/foo/bar", "/foo");
testCascadingProviders(handler, "/foo/bar"+RESOURCE_PATH, MESSAGE_1);
}
@Test
public void testCascadingProviders3() throws Exception {
JaxRsHandler handler = new JaxRsHandler() {
{
registerComponent(new MyResource(), "/foo/bar");
registerComponent(new MyReader2(), "/foo");
}
};
testCascadingProviders(handler, "/foo/bar"+RESOURCE_PATH, MESSAGE_2);
}
@Test
public void testCascadingProviders4() throws Exception {
JaxRsHandler handler = new JaxRsHandler() {
{
registerComponent(new MyResource(), "/foo/bar");
registerComponent(new MyReader1(), "/foo");
MyReader2 mbr = new MyReader2();
registerComponent(mbr, "/foo/bar");
unregisterComponent(mbr, "/foo/bar");
}
};
testCascadingProviders(handler, "/foo/bar"+RESOURCE_PATH, MESSAGE_1);
}
private void testCascadingProviders(JaxRsHandler handler,
String currentRequestUri, String expectedMessage) throws Exception {
receivedBody = null;
Request requestMock = EasyMock.createNiceMock(Request.class);
Response responseMock = EasyMock.createNiceMock(Response.class);
RequestURI requestURI = EasyMock.createNiceMock(RequestURI.class);
expect(requestMock.getMethod()).andReturn(Method.PUT).anyTimes();
String[] contentTypeHeader = { "application/x-mymessage" };
expect(requestMock.getHeaderValues(HeaderName.CONTENT_TYPE)).andReturn(
contentTypeHeader).anyTimes();
// this redundancy makes me prefer not to use mocks
Set<HeaderName> headerNames = new HashSet<HeaderName>();
headerNames.add(HeaderName.CONTENT_TYPE);
expect(requestMock.getHeaderNames()).andReturn(headerNames).anyTimes();
final String message = "The message in the body";
expect(requestMock.getMessageBody()).andReturn(new MessageBody2Write() {
@Override
public void writeTo(WritableByteChannel out) throws IOException {
out.write(ByteBuffer.wrap(message.getBytes()));
}
});
expect(requestURI.getPath()).andReturn(currentRequestUri);
expect(requestMock.getRequestURI()).andReturn(requestURI).anyTimes();
replay(requestMock);
replay(requestURI);
replay(responseMock);
handler.handle(requestMock, responseMock);
Assert.assertNotNull(receivedBody);
Assert.assertEquals(expectedMessage, receivedBody.toString());
}
public static JaxRsHandler getJaxRsHandlerUsingRegComp(
final String pathPrefix1, final String pathPrefix2) {
JaxRsHandler handler = new JaxRsHandler() {
{
registerComponent(new MyResource(), pathPrefix1);
registerComponent(new MyResource(), pathPrefix2);
registerComponent(new MyReader1(), pathPrefix1);
registerComponent(new MyReader2(), pathPrefix2);
}
};
return handler;
}
public static JaxRsHandler getJaxRsHandlerUsingApplConfig(
final String pathPrefix1, final String pathPrefix2) {
final Application applicationConfig = new Application() {
@Override
public Set<Class<?>> getClasses() {
Set<Class<?>> result = new HashSet<Class<?>>();
result.add(MyResource.class);
result.add(MyReader1.class);
return result;
}
};
JaxRsHandler handler = new JaxRsHandler() {
{
registerComponent(new MyResource(), pathPrefix2);
registerComponent(new MyReader2(), pathPrefix2);
registerApplicationConfig(applicationConfig, pathPrefix1);
}
};
return handler;
}
}