/*
* Copyright 2012-2017 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.cloudfoundry;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import org.springframework.boot.actuate.endpoint.mvc.AbstractMvcEndpoint;
import org.springframework.boot.actuate.endpoint.mvc.MvcEndpoint;
import org.springframework.boot.actuate.endpoint.mvc.NamedMvcEndpoint;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
/**
* {@link MvcEndpoint} to expose HAL-formatted JSON for Cloud Foundry specific actuator
* endpoints.
*
* @author Madhura Bhave
*/
class CloudFoundryDiscoveryMvcEndpoint extends AbstractMvcEndpoint {
private final Set<NamedMvcEndpoint> endpoints;
CloudFoundryDiscoveryMvcEndpoint(Set<NamedMvcEndpoint> endpoints) {
super("", false);
this.endpoints = endpoints;
}
@RequestMapping(produces = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
public Map<String, Map<String, Link>> links(HttpServletRequest request) {
Map<String, Link> links = new LinkedHashMap<>();
String url = request.getRequestURL().toString();
if (url.endsWith("/")) {
url = url.substring(0, url.length() - 1);
}
links.put("self", Link.withHref(url));
AccessLevel accessLevel = AccessLevel.get(request);
for (NamedMvcEndpoint endpoint : this.endpoints) {
if (accessLevel != null && accessLevel.isAccessAllowed(endpoint.getPath())) {
links.put(endpoint.getName(),
Link.withHref(url + "/" + endpoint.getName()));
}
}
return Collections.singletonMap("_links", links);
}
/**
* Details for a link in the HAL response.
*/
static class Link {
private String href;
public String getHref() {
return this.href;
}
public void setHref(String href) {
this.href = href;
}
static Link withHref(Object href) {
Link link = new Link();
link.setHref(href.toString());
return link;
}
}
}