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/*
* Copyright (c) 2019 AT&T Intellectual Property.
* Modifications Copyright © 2018 IBM.
*
* 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.
*
*
* Unless otherwise specified, all documentation contained herein is licensed
* under the Creative Commons License, Attribution 4.0 Intl. (the "License");
* you may not use this documentation except in compliance with the License.
* You may obtain a copy of the License at
*
* https://creativecommons.org/licenses/by/4.0/
*
* Unless required by applicable law or agreed to in writing, documentation
* 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.onap.optf.cmso.aaf;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
/**
* Intent is to use AAF vanity URL however, this allows us to support a list of URLs.
*/
@Component
public class BaseEndpoints {
@Autowired
Environment env;
private Map<EndpointInterface, List<String>> endpointMap = new HashMap<>();
private Map<EndpointInterface, String> endpointMapOk = new HashMap<>();
/**
* Gets the endpoint.
*
* @param ep the ep
* @param endpoints the endpoints
* @return the endpoint
*/
public String getEndpoint(EndpointInterface ep, List<String> endpoints) {
loadUrls(ep);
endpoints.clear();
endpoints.addAll(endpointMap.get(ep));
String endpoint = null;
if (endpoints.size() > 0) {
// Make an attempt to return the most recent "working" endpoint.
//
synchronized (endpointMapOk) {
endpoint = endpointMapOk.get(ep);
if (endpoint == null) {
endpoint = endpoints.get(0);
endpointMapOk.put(ep, endpoint);
}
}
endpoints.remove(endpoint);
}
return endpoint;
}
// Call this if the previous enpoint failed to connect.
/**
* Gets the next endpoint.
*
* @param ep the ep
* @param endpoints the endpoints
* @return the next endpoint
*/
// An attempt to track the most recent "working" endpoint.
public String getNextEndpoint(EndpointInterface ep, List<String> endpoints) {
String endpoint = null;
if (endpoints.size() > 0) {
endpoint = endpoints.remove(0);
synchronized (endpointMapOk) {
// Let's hope this one works.
endpointMapOk.put(ep, endpoint);
}
}
return endpoint;
}
private synchronized void loadUrls(EndpointInterface endpoint) {
endpointMap = new HashMap<>();
String urls = env.getProperty(AafProperties.aafUrls.toString());
String[] list = urls.split("\\|");
for (String url : list) {
for (EndpointInterface ep : endpoint.getValues()) {
addToEndpointMap(ep, url);
}
}
}
private void addToEndpointMap(EndpointInterface ep, String endpoint) {
List<String> list = endpointMap.get(ep);
if (list == null) {
list = new ArrayList<>();
endpointMap.put(ep, list);
}
String path = env.getProperty(ep.getPathName().toString(), ep.defaultPath());
list.add(endpoint + path);
}
}
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