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/*-
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 NOKIA 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 services.service;
import java.util.Optional;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import services.config.AAIHttpClientConfiguration;
import services.utils.HttpUtils;
import javax.annotation.Nonnull;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Iterator;
import java.util.Map;
public class AAIExtendedHttpClientImpl implements AAIExtendedHttpClient {
private final CloseableHttpClient closeableHttpClient;
private final String aaiHost;
private final String aaiProtocol;
private final Integer aaiHostPortNumber;
@Autowired
public AAIExtendedHttpClientImpl (AAIHttpClientConfiguration aaiHttpClientConfiguration) {
final AAIHttpClient aaiHttpClient = new AAIHttpClientImpl(aaiHttpClientConfiguration);
closeableHttpClient = aaiHttpClient.getAAIHttpClient();
aaiHost = aaiHttpClientConfiguration.aaiHost();
aaiProtocol = aaiHttpClientConfiguration.aaiProtocol();
aaiHostPortNumber = aaiHttpClientConfiguration.aaiHostPortNumber();
}
@Override
public String getExtendedDetails(final String aaiAPIPath, final Map<String, String> queryParams,
final Map<String, String> headers) {
final URI extendedURI =
createAAIExtendedURI(aaiProtocol, aaiHost, aaiHostPortNumber, aaiAPIPath, queryParams);
if (extendedURI == null) {
return null;
}
final HttpGet getRequest = new HttpGet(extendedURI);
for (Map.Entry<String, String> headersEntry : headers.entrySet()) {
getRequest.addHeader(headersEntry.getKey(), headersEntry.getValue());
}
Optional<String> extendedDetails = Optional.empty();
try {
extendedDetails = closeableHttpClient.execute(getRequest, aaiResponseHandler());
} catch (IOException ex) {
//ToDo loging
}
// return response
if (extendedDetails.isPresent()) {
return extendedDetails.get();
} else {
return null;
}
}
private URI createAAIExtendedURI(final String protocol, final String hostName, final Integer portNumber,
final String path, Map<String, String> queryParams) {
final URIBuilder uriBuilder = new URIBuilder().setScheme(protocol).setHost(hostName).setPort(portNumber)
.setPath(path);
final String customQuery = createCustomQuery(queryParams);
if (StringUtils.isNoneBlank(customQuery)) {
uriBuilder.setCustomQuery(customQuery);
}
URI extendedURI = null;
try {
extendedURI = uriBuilder.build();
} catch (URISyntaxException e) {
// ToDo loging
}
return extendedURI;
}
private String createCustomQuery(@Nonnull final Map<String, String> queryParams) {
final StringBuilder queryStringBuilder = new StringBuilder("");
final Iterator<Map.Entry<String, String>> queryParamIterator = queryParams.entrySet().iterator();
while (queryParamIterator.hasNext()) {
final Map.Entry<String, String> queryParamsEntry = queryParamIterator.next();
queryStringBuilder.append(queryParamsEntry.getKey());
queryStringBuilder.append("=");
queryStringBuilder.append(queryParamsEntry.getValue());
if (queryParamIterator.hasNext()) {
queryStringBuilder.append("&");
}
}
return queryStringBuilder.toString();
}
private ResponseHandler<Optional<String>> aaiResponseHandler() {
return httpResponse -> {
final int responseCode = httpResponse.getStatusLine().getStatusCode();
final HttpEntity responseEntity = httpResponse.getEntity();
if (HttpUtils.isSuccessfulResponseCode(responseCode) && null != responseEntity) {
final String aaiResponse = EntityUtils.toString(responseEntity);
return Optional.of(aaiResponse);
} else {
String aaiResponse = responseEntity != null ? EntityUtils.toString(responseEntity) : "";
//ToDo loging
return Optional.empty();
}
};
}
}
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