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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.endpoints.http.client;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Properties;
import org.apache.commons.lang3.StringUtils;
import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
import org.onap.policy.common.endpoints.http.client.internal.JerseyClient;
import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
import org.onap.policy.common.endpoints.utils.PropertyUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* HTTP client factory implementation indexed by name.
*/
class IndexedHttpClientFactory implements HttpClientFactory {
/**
* Logger.
*/
private static Logger logger = LoggerFactory.getLogger(IndexedHttpClientFactory.class);
protected HashMap<String, HttpClient> clients = new HashMap<>();
@Override
public synchronized HttpClient build(BusTopicParams busTopicParams) throws HttpClientConfigException {
if (clients.containsKey(busTopicParams.getClientName())) {
return clients.get(busTopicParams.getClientName());
}
JerseyClient client;
try {
client = new JerseyClient(busTopicParams);
} catch (KeyManagementException | NoSuchAlgorithmException | ClassNotFoundException e) {
throw new HttpClientConfigException(e);
}
if (busTopicParams.isManaged()) {
clients.put(busTopicParams.getClientName(), client);
}
return client;
}
@Override
public synchronized List<HttpClient> build(Properties properties) throws HttpClientConfigException {
ArrayList<HttpClient> clientList = new ArrayList<>();
String clientNames = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES);
if (StringUtils.isBlank(clientNames)) {
return clientList;
}
for (String clientName : clientNames.split("\\s*,\\s*")) {
addClient(clientList, clientName, properties);
}
return clientList;
}
private void addClient(ArrayList<HttpClient> clientList, String clientName, Properties properties) {
String clientPrefix = PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + clientName;
PropertyUtils props = new PropertyUtils(properties, clientPrefix,
(name, value, ex) ->
logger.warn("{}: {} {} is in invalid format for http client {} ", this, name, value, clientName));
int port = props.getInteger(PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, -1);
if (port < 0) {
logger.warn("No HTTP port for client in {}", clientName);
return;
}
boolean https = props.getBoolean(PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX, false);
try {
HttpClient client = this.build(BusTopicParams.builder()
.clientName(clientName)
.useHttps(https)
.allowSelfSignedCerts(https)
.hostname(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, null))
.port(port)
.basePath(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_URL_SUFFIX, null))
.userName(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX,
null))
.password(props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX,
null))
.managed(props.getBoolean(PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, true))
.serializationProvider(props.getString(
PolicyEndPointProperties.PROPERTY_HTTP_SERIALIZATION_PROVIDER, null))
.build());
clientList.add(client);
} catch (Exception e) {
logger.error("http-client-factory: cannot build client {}", clientName, e);
}
}
@Override
public synchronized HttpClient get(String name) {
if (clients.containsKey(name)) {
return clients.get(name);
}
throw new IllegalArgumentException("Http Client " + name + " not found");
}
@Override
public synchronized List<HttpClient> inventory() {
return new ArrayList<>(this.clients.values());
}
@Override
public synchronized void destroy(String name) {
if (!clients.containsKey(name)) {
return;
}
HttpClient client = clients.remove(name);
try {
client.shutdown();
} catch (IllegalStateException e) {
logger.error("http-client-factory: cannot shutdown client {}", client, e);
}
}
@Override
public void destroy() {
List<HttpClient> clientsInventory = this.inventory();
for (HttpClient client : clientsInventory) {
client.shutdown();
}
synchronized (this) {
this.clients.clear();
}
}
}
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