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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2020 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.openecomp.sdc.config;
import org.apache.http.client.HttpRequestRetryHandler;
import org.apache.http.client.UserTokenHandler;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.config.SocketConfig;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.ssl.SSLContexts;
import org.openecomp.sdc.common.api.Constants;
import org.openecomp.sdc.common.http.client.api.HttpClientConfigImmutable;
import org.openecomp.sdc.common.http.config.HttpClientConfig;
import org.openecomp.sdc.common.http.config.Timeouts;
import org.openecomp.sdc.common.log.wrappers.Logger;
public class HttpClientFactory {
private static final int DEFAULT_CONNECTION_POOL_SIZE = 30;
private static final int DEFAULT_MAX_CONNECTION_PER_ROUTE = 5;
private static final int VALIDATE_CONNECTION_AFTER_INACTIVITY_MS = 10000;
private static final int CONNECT_TIMEOUT_MS = 15000;
private static final Logger log = Logger.getLogger(HttpClientFactory.class);
private static final UserTokenHandler userTokenHandler = context -> null;
private HttpClientConnectionManager createConnectionManager(){
SSLConnectionSocketFactory sslsf = getSslConnectionSocketFactory();
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
.register(Constants.HTTP, PlainConnectionSocketFactory.getSocketFactory())
.register(Constants.HTTPS, sslsf).build();
PoolingHttpClientConnectionManager manager = new PoolingHttpClientConnectionManager(registry);
manager.setMaxTotal(DEFAULT_CONNECTION_POOL_SIZE);
manager.setDefaultMaxPerRoute(DEFAULT_MAX_CONNECTION_PER_ROUTE);
manager.setValidateAfterInactivity(VALIDATE_CONNECTION_AFTER_INACTIVITY_MS);
SocketConfig socketConfig = SocketConfig.custom()
.setSoTimeout(CONNECT_TIMEOUT_MS)
.build();
manager.setDefaultSocketConfig(socketConfig);
return manager;
}
private SSLConnectionSocketFactory getSslConnectionSocketFactory() {
return new SSLConnectionSocketFactory(SSLContexts.createSystemDefault());
}
/*
The difference between this client factory and the one in common api,
is that this one returns an apache httpclient instance, rather than a custom created custom.
*/
public CloseableHttpClient createHttpClient() {
int connectTimeoutMs = 5000;
int readTimeoutMs = 10000;
HttpClientConnectionManager connManager = createConnectionManager();
HttpClientConfig httpClientConfig = new HttpClientConfig(new Timeouts(connectTimeoutMs, readTimeoutMs));
HttpClientConfigImmutable immutableHttpClientConfig = new HttpClientConfigImmutable(httpClientConfig);
RequestConfig requestConfig = createClientTimeoutConfiguration(immutableHttpClientConfig);
return HttpClients.custom()
.setConnectionManager(connManager)
.setDefaultRequestConfig(requestConfig)
.setUserTokenHandler(userTokenHandler)
.setRetryHandler(resolveRetryHandler(immutableHttpClientConfig))
.build();
}
private RequestConfig createClientTimeoutConfiguration(HttpClientConfigImmutable config) {
return RequestConfig.custom()
.setConnectTimeout(config.getConnectTimeoutMs())
.setSocketTimeout(config.getReadTimeoutMs())
.setConnectionRequestTimeout(config.getConnectPoolTimeoutMs())
.build();
}
private HttpRequestRetryHandler resolveRetryHandler(HttpClientConfigImmutable config) {
return config.getNumOfRetries() > 0 ? config.getRetryHandler() : null;
}
}
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