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/**
* Copyright 2017-2021 ZTE Corporation.
* <p>
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.
*/
package org.onap.holmes.common.config;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import org.apache.commons.lang3.StringUtils;
import org.onap.holmes.common.constant.AlarmConst;
import org.onap.holmes.common.utils.JerseyClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.onap.holmes.common.utils.CommonUtils.getEnv;
public class MicroServiceConfig {
final static public String CONSUL_ADDR_SUF = ":8500/v1/catalog/service/";
final static public String CONSUL_HOST = "CONSUL_HOST";
final static public String HOSTNAME = "HOSTNAME";
final static public String POD_IP = "POD_IP";
final static public String CONFIG_BINDING_SERVICE = "CONFIG_BINDING_SERVICE";
final static public String MSB_ADDR = "MSB_ADDR";
final static public String MSB_IAG_SERVICE_HOST = "MSB_IAG_SERVICE_HOST";
final static public String MSB_IAG_SERVICE_PORT = "MSB_IAG_SERVICE_PORT";
final static public String BASE_URL = "BASE_URL";
final static public String PRE_ADDR = "PRE_ADDR";
final static public String POST_ADDR = "POST_ADDR";
final static public String AAI_ADDR = "AAI_ADDR";
final static public String PROTOCOL_HTTP = "http";
final static public String PROTOCOL_HTTPS = "https";
final static public int PLAIN_PORT = 80;
final static public int TLS_PORT = 443;
final static public Logger log = LoggerFactory.getLogger(MicroServiceConfig.class);
public static String getConsulAddrInfo() {
return "http://" + getEnv(CONSUL_HOST) + CONSUL_ADDR_SUF;
}
public static String getServiceAddrInfoFromDcaeConsulByHostName(String hostname) {
String ret = null;
String queryString = getConsulAddrInfo() + hostname;
log.info("Query the " + hostname + " address using the URL: " + queryString);
try {
JsonArray addrArray = JsonParser.parseString(execQuery(queryString)).getAsJsonArray();
if (addrArray.size() > 0) {
JsonObject addrJson = addrArray.get(0).getAsJsonObject();
if (addrJson != null && addrJson.get("ServiceAddress") != null
&& addrJson.get("ServicePort") != null) {
ret = "http://" + addrJson.get("ServiceAddress").getAsString() + ":" + addrJson
.get("ServicePort").getAsString();
}
} else {
log.info("No service info is returned from DCAE Consul. Hostname: {}", hostname);
}
} catch (Exception e) {
log.warn(e.getMessage(), e);
}
log.info("The " + hostname + " address is " + ret);
return ret;
}
private static String execQuery(String queryString) {
return JerseyClient.newInstance().get(queryString);
}
public static String getServiceConfigInfoFromCBS(String hostname) {
String url = getServiceAddrInfoFromDcaeConsulByHostName(getEnv(CONFIG_BINDING_SERVICE)) + "/service_component/" + hostname;
String ret = execQuery(url);
log.info("The query url is: " + url + ". The corresponding configurations are " + ret);
return ret;
}
public static String getMsbServerAddrWithHttpPrefix() {
String[] addrInfo = getMsbIpAndPort();
String ret = addrInfo[0] + ":" + addrInfo[1];
if (!ret.startsWith(AlarmConst.HTTP) || !ret.startsWith(AlarmConst.HTTPS)) {
ret = AlarmConst.HTTP + ret;
}
return ret;
}
public static String getAaiAddr() {
boolean tlsEnabled = Boolean.valueOf(getEnv("ENABLE_ENCRYPT"));
return String.format("%s://%s%s%s.%s:%d",
tlsEnabled ? PROTOCOL_HTTPS : PROTOCOL_HTTP,
nullToEmptyString(getEnv(PRE_ADDR)),
nullToEmptyString(getEnv(AAI_ADDR)),
nullToEmptyString(getEnv(POST_ADDR)),
nullToEmptyString(getEnv(BASE_URL)),
tlsEnabled ? TLS_PORT : PLAIN_PORT);
}
public static String[] getMsbIpAndPort() {
return new String[]{getEnv(MSB_IAG_SERVICE_HOST), getEnv(MSB_IAG_SERVICE_PORT)};
}
public static String[] getMicroServiceIpAndPort() {
String info = getEnv(POD_IP);
if (info != null) {
return split(info);
} else {
return split(getEnv(HOSTNAME));
}
}
private static String[] split(String addr) {
String ip;
String port = "80";
if (addr.lastIndexOf(":") == -1) {
ip = addr;
} else if (addr.lastIndexOf(":") < 5 && addr.indexOf("://") != -1) {
ip = addr.substring(addr.indexOf("//") + 2); //remove the http(s):// prefix
} else {
ip = addr.substring(addr.indexOf("://") != -1 ? addr.indexOf("//") + 2 : 0, addr.lastIndexOf(":"));
port = addr.substring(addr.lastIndexOf(":") + 1);
}
return new String[]{ip, port};
}
private static String nullToEmptyString(String input) {
return input == null ? StringUtils.EMPTY : input;
}
}
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