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/*-
* ============LICENSE_START=======================================================
* rest
* ================================================================================
* Copyright (C) 2017 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.rest;
import java.io.IOException;
import java.util.Map;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class RESTManager {
private static final Logger logger = LoggerFactory.getLogger(RESTManager.class);
public class Pair<A, B> {
public final A a;
public final B b;
public Pair(A a, B b) {
this.a = a;
this.b = b;
}
}
public Pair<Integer, String> post(String url, String username, String password, Map<String, String> headers, String contentType, String body) {
CredentialsProvider credentials = new BasicCredentialsProvider();
credentials.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));
logger.debug("HTTP REQUEST: {} -> {} {} -> {}", url, username, ((password!=null)?password.length():"-"), contentType);
if (headers != null) {
logger.debug("Headers: ");
headers.forEach((name, value) -> {
logger.debug("{} -> {}", name, value);
});
}
logger.debug(body);
try (CloseableHttpClient client = HttpClientBuilder.create().setDefaultCredentialsProvider(credentials).build()) {
HttpPost post = new HttpPost(url);
if (headers != null) {
for (String key : headers.keySet()) {
post.addHeader(key, headers.get(key));
}
}
post.addHeader("Content-Type", contentType);
StringEntity input = new StringEntity(body);
input.setContentType(contentType);
post.setEntity(input);
HttpResponse response = client.execute(post);
if (response != null) {
String returnBody = EntityUtils.toString(response.getEntity(), "UTF-8");
logger.debug("HTTP POST Response Status Code: {}", response.getStatusLine().getStatusCode());
logger.debug("HTTP POST Response Body:");
logger.debug(returnBody);
return new Pair<Integer, String>(response.getStatusLine().getStatusCode(), returnBody);
} else {
logger.error("Response from {} is null", url);
return null;
}
} catch (Exception e) {
logger.error("Failed to POST to {}",url,e);
return null;
}
}
public Pair<Integer, String> get(String url, String username, String password, Map<String, String> headers) {
CredentialsProvider credentials = new BasicCredentialsProvider();
credentials.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));
try (CloseableHttpClient client = HttpClientBuilder.create().setDefaultCredentialsProvider(credentials).build()) {
HttpGet get = new HttpGet(url);
if (headers != null) {
for (String key : headers.keySet()) {
get.addHeader(key, headers.get(key));
}
}
HttpResponse response = client.execute(get);
String returnBody = EntityUtils.toString(response.getEntity(), "UTF-8");
logger.debug("HTTP GET Response Status Code: {}", response.getStatusLine().getStatusCode());
logger.debug("HTTP GET Response Body:");
logger.debug(returnBody);
return new Pair<Integer, String>(response.getStatusLine().getStatusCode(), returnBody);
} catch (IOException e) {
logger.error("Failed to GET to {}",url,e);
return null;
}
}
}
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