D-Net

package eu.dnetlib.data.utils;

import java.security.KeyManagementException;

import java.security.KeyStoreException;

import java.security.NoSuchAlgorithmException;

import java.util.concurrent.TimeUnit;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.apache.http.conn.ssl.SSLConnectionSocketFactory;

import org.apache.http.impl.client.HttpClientBuilder;

import org.apache.http.ssl.SSLContextBuilder;

import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;

import org.springframework.web.client.RestTemplate;

public class RestTemplateFactory {

	private static final Log log = LogFactory.getLog(RestTemplateFactory.class);

	private static final SSLContextBuilder sslContextBuilder = new SSLContextBuilder();

	private static SSLConnectionSocketFactory sslSocketFactory;

	static {

		try {

			sslContextBuilder.loadTrustMaterial(null, (chain, authType) -> true);

			sslSocketFactory = new SSLConnectionSocketFactory(sslContextBuilder.build());

		} catch (final NoSuchAlgorithmException | KeyStoreException | KeyManagementException e) {

			log.error(e);;

		}

	}

	private static final HttpComponentsClientHttpRequestFactory httpRequestFactory = new HttpComponentsClientHttpRequestFactory(HttpClientBuilder

			.create()

			.setConnectionTimeToLive(0, TimeUnit.MILLISECONDS)

			.setMaxConnPerRoute(1)

			.setMaxConnTotal(1)

			.disableAutomaticRetries()

			.disableConnectionState()

			.setSSLSocketFactory(sslSocketFactory)

			.build());

	public static RestTemplate newInstance() {

		return new RestTemplate(httpRequestFactory);

	}

}