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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (C) 2017 Huawei Technologies Co., Ltd. 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.mso.adapters.vfc.util;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.openecomp.mso.adapters.vfc.model.RestfulResponse;
import org.openecomp.mso.logger.MsoAlarmLogger;
import org.openecomp.mso.properties.MsoPropertiesException;
import org.openecomp.mso.properties.MsoPropertiesFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* <br>
* <p>
* </p>
* utility to invoke restclient
*
* @author
* @version ONAP Amsterdam Release 2017-9-6
*/
public class RestfulUtil {
/**
* Log service
*/
private static final Logger LOGGER = LoggerFactory.getLogger(RestfulUtil.class);
private static final MsoAlarmLogger ALARMLOGGER = new MsoAlarmLogger();
private static final int DEFAULT_TIME_OUT = 60000;
private static final String ONAP_IP = "ONAP_IP";
private static final String DEFAULT_MSB_IP = "127.0.0.1";
private static final String DEFAULT_MSB_PORT = "80";
private static final MsoPropertiesFactory msoPropertiesFactory = new MsoPropertiesFactory();
public static String getMsbHost() {
String msbPort = DEFAULT_MSB_PORT;
// MSB_IP will be set as ONAP_IP environment parameter in install flow.
String msbIp = System.getenv().get(ONAP_IP);
try {
// if ONAP IP is not set. get it from config file.
if(null == msbIp || msbIp.isEmpty()) {
msbIp = msoPropertiesFactory.getMsoJavaProperties("MSO_PROP_TOPOLOGY").getProperty("msb-ip", DEFAULT_MSB_IP);
msbPort = msoPropertiesFactory.getMsoJavaProperties("MSO_PROP_TOPOLOGY").getProperty("msb-port", DEFAULT_MSB_PORT);
}
} catch(MsoPropertiesException e) {
LOGGER.error("Get msb properties failed",e);
}
return "http://" + msbIp + ":" + msbPort;
}
private RestfulUtil() {
}
public static RestfulResponse send(String url, String methodType, String content) {
String msbUrl = getMsbHost() + url;
LOGGER.info("Begin to sent message " + methodType +": " + msbUrl);
HttpRequestBase method = null;
HttpResponse httpResponse = null;
try {
int timeout = DEFAULT_TIME_OUT;
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(timeout).setConnectTimeout(timeout)
.setConnectionRequestTimeout(timeout).build();
HttpClient client = HttpClientBuilder.create().build();
if("POST".equalsIgnoreCase(methodType)) {
HttpPost httpPost = new HttpPost(msbUrl);
httpPost.setConfig(requestConfig);
httpPost.setEntity(new StringEntity(content, ContentType.APPLICATION_JSON));
method = httpPost;
} else if("PUT".equalsIgnoreCase(methodType)) {
HttpPut httpPut = new HttpPut(msbUrl);
httpPut.setConfig(requestConfig);
httpPut.setEntity(new StringEntity(content, ContentType.APPLICATION_JSON));
method = httpPut;
} else if("GET".equalsIgnoreCase(methodType)) {
HttpGet httpGet = new HttpGet(msbUrl);
httpGet.setConfig(requestConfig);
method = httpGet;
} else if("DELETE".equalsIgnoreCase(methodType)) {
HttpDelete httpDelete = new HttpDelete(msbUrl);
httpDelete.setConfig(requestConfig);
method = httpDelete;
}
// now VFC have no auth
// String userCredentials =
// SDNCAdapterProperties.getEncryptedProperty(Constants.SDNC_AUTH_PROP,
// Constants.DEFAULT_SDNC_AUTH, Constants.ENCRYPTION_KEY);
// String authorization = "Basic " +
// DatatypeConverter.printBase64Binary(userCredentials.getBytes());
// method.setHeader("Authorization", authorization);
httpResponse = client.execute(method);
String responseContent = null;
if(httpResponse.getEntity() != null) {
responseContent = EntityUtils.toString(httpResponse.getEntity(), "UTF-8");
}
int statusCode = httpResponse.getStatusLine().getStatusCode();
String statusMessage = httpResponse.getStatusLine().getReasonPhrase();
LOGGER.debug("VFC Response: " + statusCode + " " + statusMessage
+ (responseContent == null ? "" : System.lineSeparator() + responseContent));
if(httpResponse.getStatusLine().getStatusCode() >= 300) {
String errMsg = "VFC returned " + statusCode + " " + statusMessage;
logError(errMsg);
return createResponse(statusCode, errMsg);
}
httpResponse = null;
if(null != method) {
method.reset();
} else {
LOGGER.debug("method is NULL:");
}
method = null;
return createResponse(statusCode, responseContent);
} catch(SocketTimeoutException | ConnectTimeoutException e) {
String errMsg = "Request to VFC timed out";
logError(errMsg, e);
return createResponse(HttpURLConnection.HTTP_CLIENT_TIMEOUT, errMsg);
} catch(Exception e) {
String errMsg = "Error processing request to VFC";
logError(errMsg, e);
return createResponse(HttpURLConnection.HTTP_INTERNAL_ERROR, errMsg);
} finally {
if(httpResponse != null) {
try {
EntityUtils.consume(httpResponse.getEntity());
} catch(Exception e) {
LOGGER.debug("Exception :", e);
}
}
if(method != null) {
try {
method.reset();
} catch(Exception e) {
LOGGER.debug("Exception :", e);
}
}
}
}
private static void logError(String errMsg, Throwable t) {
LOGGER.error(errMsg, t);
ALARMLOGGER.sendAlarm("MsoInternalError", MsoAlarmLogger.CRITICAL, errMsg);
}
private static void logError(String errMsg) {
LOGGER.error(errMsg);
ALARMLOGGER.sendAlarm("MsoInternalError", MsoAlarmLogger.CRITICAL, errMsg);
}
private static RestfulResponse createResponse(int statusCode, String content) {
RestfulResponse rsp = new RestfulResponse();
rsp.setStatus(statusCode);
rsp.setResponseContent(content);
return rsp;
}
}
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