/*
* Copyright 2012-2016 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.boot.actuate.autoconfigure;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.assertj.core.api.Condition;
import org.junit.Before;
import org.junit.Test;
import org.springframework.boot.actuate.endpoint.AbstractEndpoint;
import org.springframework.boot.actuate.endpoint.mvc.AbstractMvcEndpoint;
import org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter;
import org.springframework.boot.actuate.endpoint.mvc.MvcEndpoint;
import org.springframework.boot.actuate.endpoint.mvc.MvcEndpoints;
import org.springframework.hateoas.Link;
import org.springframework.hateoas.ResourceSupport;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.context.support.StaticWebApplicationContext;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link LinksEnhancer}.
*
* @author Madhura Bhave
*/
public class LinksEnhancerTests {
@Before
public void setup() {
MockHttpServletRequest request = new MockHttpServletRequest();
RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(request));
}
@Test
public void useNameAsRelIfAvailable() throws Exception {
TestMvcEndpoint endpoint = new TestMvcEndpoint(new TestEndpoint("a"));
endpoint.setPath("something-else");
LinksEnhancer enhancer = getLinksEnhancer(
Collections.singletonList((MvcEndpoint) endpoint));
ResourceSupport support = new ResourceSupport();
enhancer.addEndpointLinks(support, "");
assertThat(support.getLink("a").getHref()).contains("/something-else");
}
@Test
public void usePathAsRelIfNameNotAvailable() throws Exception {
MvcEndpoint endpoint = new NoNameTestMvcEndpoint("/a", false);
LinksEnhancer enhancer = getLinksEnhancer(Collections.singletonList(endpoint));
ResourceSupport support = new ResourceSupport();
enhancer.addEndpointLinks(support, "");
assertThat(support.getLink("a").getHref()).contains("/a");
}
@Test
public void hrefNotAddedToRelTwice() throws Exception {
MvcEndpoint endpoint = new TestMvcEndpoint(new TestEndpoint("a"));
MvcEndpoint otherEndpoint = new TestMvcEndpoint(new TestEndpoint("a"));
LinksEnhancer enhancer = getLinksEnhancer(Arrays.asList(endpoint, otherEndpoint));
ResourceSupport support = new ResourceSupport();
enhancer.addEndpointLinks(support, "");
assertThat(support.getLinks()).haveExactly(1, getCondition("a", "a"));
}
@Test
public void multipleHrefsForSameRelWhenPathIsDifferent() throws Exception {
TestMvcEndpoint endpoint = new TestMvcEndpoint(new TestEndpoint("a"));
endpoint.setPath("endpoint");
TestMvcEndpoint otherEndpoint = new TestMvcEndpoint(new TestEndpoint("a"));
otherEndpoint.setPath("other-endpoint");
LinksEnhancer enhancer = getLinksEnhancer(
Arrays.asList((MvcEndpoint) endpoint, otherEndpoint));
ResourceSupport support = new ResourceSupport();
enhancer.addEndpointLinks(support, "");
assertThat(support.getLinks()).haveExactly(1, getCondition("a", "endpoint"));
assertThat(support.getLinks()).haveExactly(1,
getCondition("a", "other-endpoint"));
}
private LinksEnhancer getLinksEnhancer(List<MvcEndpoint> endpoints) throws Exception {
StaticWebApplicationContext context = new StaticWebApplicationContext();
for (MvcEndpoint endpoint : endpoints) {
context.getDefaultListableBeanFactory().registerSingleton(endpoint.toString(),
endpoint);
}
MvcEndpoints mvcEndpoints = new MvcEndpoints();
mvcEndpoints.setApplicationContext(context);
mvcEndpoints.afterPropertiesSet();
return new LinksEnhancer("", mvcEndpoints);
}
private Condition<Link> getCondition(final String rel, final String href) {
return new Condition<Link>() {
@Override
public boolean matches(Link link) {
return link.getRel().equals(rel)
&& link.getHref().equals("http://localhost/" + href);
}
};
}
private static class TestEndpoint extends AbstractEndpoint<Object> {
TestEndpoint(String id) {
super(id);
}
@Override
public Object invoke() {
return null;
}
}
private static class TestMvcEndpoint extends EndpointMvcAdapter {
TestMvcEndpoint(TestEndpoint delegate) {
super(delegate);
}
}
private static class NoNameTestMvcEndpoint extends AbstractMvcEndpoint {
NoNameTestMvcEndpoint(String path, boolean sensitive) {
super(path, sensitive);
}
}
}