/
PropertyPathEndpoint.java
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/
PropertyPathEndpoint.java
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/*
* Copyright 2015-2019 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
*
* https://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.cloud.config.monitor;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cloud.bus.event.RefreshRemoteApplicationEvent;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
/**
* HTTP endpoint for webhooks coming from repository providers.
*
* @author Dave Syer
*
*/
@RestController
@RequestMapping(path = "${spring.cloud.config.monitor.endpoint.path:}/monitor")
public class PropertyPathEndpoint implements ApplicationEventPublisherAware {
private static Log log = LogFactory.getLog(PropertyPathEndpoint.class);
private final PropertyPathNotificationExtractor extractor;
private ApplicationEventPublisher applicationEventPublisher;
private String busId;
public PropertyPathEndpoint(PropertyPathNotificationExtractor extractor, String busId) {
this.extractor = extractor;
this.busId = busId;
}
/* for testing */ String getBusId() {
return this.busId;
}
@Override
public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
this.applicationEventPublisher = applicationEventPublisher;
}
@PostMapping
public Set<String> notifyByPath(@RequestHeader HttpHeaders headers, @RequestBody Map<String, Object> request) {
PropertyPathNotification notification = this.extractor.extract(headers, request);
if (notification != null) {
Set<String> services = new LinkedHashSet<>();
for (String path : notification.getPaths()) {
services.addAll(guessServiceName(path));
}
if (this.applicationEventPublisher != null) {
for (String service : services) {
log.info("Refresh for: " + service);
this.applicationEventPublisher
.publishEvent(new RefreshRemoteApplicationEvent(this, this.busId, service));
}
return services;
}
}
return Collections.emptySet();
}
@PostMapping(consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
public Set<String> notifyByForm(@RequestHeader HttpHeaders headers, @RequestParam("path") List<String> request) {
Map<String, Object> map = new HashMap<>();
String key = "path";
map.put(key, request);
return notifyByPath(headers, map);
}
private Set<String> guessServiceName(String path) {
Set<String> services = new LinkedHashSet<>();
if (path != null) {
String stem = StringUtils.stripFilenameExtension(StringUtils.getFilename(StringUtils.cleanPath(path)));
// TODO: correlate with service registry
String name = stem + "-";
int index;
// support application name with dashes
while ((index = name.lastIndexOf("-")) >= 0) {
name = name.substring(0, index);
if ("application".equals(name)) {
services.add("*");
}
else {
services.add(name);
}
}
}
return services;
}
}