VESMapper relying on CBS interface

Issue-ID: DCAEGEN2-3097

Signed-off-by: Mukesh Paliwal <mukesh.paliwal1@huawei.com>
Change-Id: Ic163248396d8b0ba135de2b95d79fc6a0c8b115b

3 files changed, 4 insertions, 237 deletions

diff --git a/UniversalVesAdapter/pom.xml b/UniversalVesAdapter/pom.xml
index c08155c..ad34a6f 100644
--- a/UniversalVesAdapter/pom.xml
+++ b/UniversalVesAdapter/pom.xml
@@ -28,11 +28,11 @@
 
     <groupId>org.onap.dcaegen2.services.mapper.vesadapter</groupId>
     <artifactId>UniversalVesAdapter</artifactId>
-    <version>1.3.3-SNAPSHOT</version>
+    <version>1.4.0-SNAPSHOT</version>
     <parent>
         <groupId>org.onap.dcaegen2.services.mapper</groupId>
         <artifactId>mapper</artifactId>
-        <version>1.3.3-SNAPSHOT</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
     <properties>
 
diff --git a/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/service/VESAdapterInitializer.java b/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/service/VESAdapterInitializer.java
index 01da983..e996669 100644
--- a/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/service/VESAdapterInitializer.java
+++ b/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/service/VESAdapterInitializer.java
@@ -3,6 +3,7 @@
  * ONAP : DCAE
  * ================================================================================
  * Copyright 2018-2019 TechMahindra
+ * Copyright (C) 2022 Huawei Technologies Co., Ltd.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -41,7 +42,7 @@ import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsClientConfiguration;
 import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
 import org.onap.universalvesadapter.utils.CollectorConfigPropertyRetrieval;
-import org.onap.universalvesadapter.utils.FetchDynamicConfig;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -95,22 +96,13 @@ public class VESAdapterInitializer implements CommandLineRunner, Ordered {
         // Create the client and use it to get the configuration
         CbsClientFactory.createCbsClient(env).flatMapMany(cbsClient -> cbsClient.updates(request, initialDelay, period))
         .subscribe(jsonObject -> {
-
-            // If env details not fetched static configuration file will be used
-            if (env.consulHost() != null && env.cbsName() != null && env.appName() != null) {
-                debugLogger.info(">>>Dynamic configuration to be used");
-                FetchDynamicConfig.cbsCall(defaultConfigFilelocation);
-            }
-
             readJsonToMap(defaultConfigFilelocation);
 
             debugLogger.info("Triggering controller's start url ");
             fetchResultFromDestination("http://localhost:" + serverPort + "/start");
-
         }, throwable -> {
             debugLogger.warn("Cannot Connect", throwable);
         });
-
     }
 
     /**
diff --git a/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/utils/FetchDynamicConfig.java b/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/utils/FetchDynamicConfig.java
deleted file mode 100644
index b8fa00f..0000000
--- a/UniversalVesAdapter/src/main/java/org/onap/universalvesadapter/utils/FetchDynamicConfig.java
+++ /dev/null
@@ -1,225 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- * ONAP : DCAE
- * ================================================================================
- * Copyright 2019 TechMahindra
- * ================================================================================
- * 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.universalvesadapter.utils;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.PrintWriter;
-import java.nio.file.Files;
-import org.apache.http.HttpResponse;
-import org.apache.http.client.ClientProtocolException;
-import org.apache.http.client.HttpClient;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.HttpClientBuilder;
-import org.json.JSONArray;
-import org.json.JSONObject;
-import org.json.JSONTokener;
-import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsRequests;
-import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsRequest;
-import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsClientConfiguration;
-import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Component;
-import org.springframework.util.ResourceUtils;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-
-@Component
-public class FetchDynamicConfig {
-
-    // @Value("${defaultProtocol}")
-    static String defaultProtocol = "http";
-
-    private static final Logger debugLogger = LoggerFactory.getLogger("debugLogger");
-    private static final Logger errorLogger = LoggerFactory.getLogger("errorLogger");
-
-    private static String url;
-    public static String retString;
-    public static String retCBSString;
-
-    // Generate RequestID and InvocationID which will be used when logging and in
-    // HTTP requests
-    final RequestDiagnosticContext diagnosticContext = RequestDiagnosticContext.create();
-    final CbsRequest request = CbsRequests.getConfiguration(diagnosticContext);
-
-    // Read necessary properties from the environment
-    static final CbsClientConfiguration env = CbsClientConfiguration.fromEnvironment();
-
-    public FetchDynamicConfig() {
-
-    }
-
-    public static void cbsCall(String configFile) {
-
-        Boolean areEqual;
-        // Call consul api and identify the CBS Service address and port
-        getconsul();
-        // Construct and invoke CBS API to get application Configuration
-        getCBS();
-        // Verify if data has changed
-        areEqual = verifyConfigChange(configFile);
-
-        if (!areEqual) {
-            FetchDynamicConfig fc = new FetchDynamicConfig();
-            if (retCBSString != null) {
-                fc.writefile(retCBSString, configFile);
-            } else {
-                debugLogger.debug("No content recieved from server");
-            }
-        } else {
-            debugLogger.info("New config pull results identical -  {} NOT refreshed", configFile);
-        }
-    }
-
-    private static void getconsul() {
-        url = defaultProtocol + "://" + env.consulHost() + ":" + env.consulPort() + "/v1/catalog/service/"
-                + env.cbsName();
-        retString = fetchResultFromDestination(url);
-        debugLogger.info("CBS details fetched from Consul");
-    }
-
-    public static boolean verifyConfigChange(String configFile) {
-
-        boolean areEqual = false;
-        // Read current data
-        try {
-
-            File f = new File(ClassLoader.getSystemResource(configFile.trim()).getFile());
-
-            if (f.exists() && !f.isDirectory()) {
-                debugLogger.info("Comparing local configuration with the configuration fethed from CBS ");
-
-                String jsonData = readFile(configFile);
-                JSONObject jsonObject = new JSONObject(jsonData);
-
-                ObjectMapper mapper = new ObjectMapper();
-
-                JsonNode tree1 = mapper.readTree(jsonObject.toString());
-                JsonNode tree2 = mapper.readTree(retCBSString);
-                areEqual = tree1.equals(tree2);
-                debugLogger.info("Comparison value:{}", areEqual);
-            } else {
-                debugLogger.info("First time config file read: {}",configFile);
-            }
-
-        } catch (IOException e) {
-            errorLogger.error("Comparison with new fetched data failed", e);
-
-        }
-
-        return areEqual;
-
-    }
-
-    public static void getCBS() {
-
-        // consul return as array
-        JSONTokener temp = new JSONTokener(retString);
-        JSONObject cbsjobj = (JSONObject) new JSONArray(temp).get(0);
-
-        String urlPart1 = null;
-        if (cbsjobj.has("ServiceAddress") && cbsjobj.has("ServicePort")) {
-
-            urlPart1 = cbsjobj.getString("ServiceAddress") + ":" + cbsjobj.getInt("ServicePort");
-
-        }
-        debugLogger.info("CONFIG_BINDING_SERVICE HOST:PORT is {}", urlPart1);
-
-        if (env.appName() != null) {
-            url = defaultProtocol + "://" + urlPart1 + "/service_component/" + env.appName();
-            retCBSString = fetchResultFromDestination(url);
-            debugLogger.info("Configuration fetched from CBS successfully..");
-        } else {
-            errorLogger.error("Service name environment variable - APP_NAME/SERVICE_NAME not found within container ");
-        }
-    }
-
-    public void writefile(String retCBSString, String configFile) {
-
-        String indentedretstring = (new JSONObject(retCBSString)).toString(4);
-        try {
-            debugLogger.info("Overwriting local configuration file {} with configuartions received from CBS",
-                    configFile);
-
-            File file2 = ResourceUtils.getFile("classpath:" + configFile);
-            try (FileWriter fstream = new FileWriter(file2, false);
-                    PrintWriter printWriter = new PrintWriter(fstream)) {
-                printWriter.print(indentedretstring);
-            }
-
-            debugLogger.info("New Config successfully written to local file to {}", configFile);
-        } catch (IOException e) {
-            errorLogger.error(
-                    "Error in writing configuration into local KV file " + configFile + retString, e);
-        }
-    }
-
-    public static String readFile(String configFileName) {
-        String content = null;
-        File file = null;
-
-        try {
-            file = ResourceUtils.getFile("classpath:" + configFileName);
-            content = new String(Files.readAllBytes(file.toPath()));
-        } catch (FileNotFoundException e) {
-            errorLogger.error("colud not find file :{}", configFileName);
-        } catch (IOException e) {
-            errorLogger.error("unable to read the file , reason:", e);
-        } catch (Exception e) {
-            errorLogger.error("Exception occured , reason:", e);
-        }
-
-        return content;
-    }
-
-    private static String fetchResultFromDestination(String url) {
-        debugLogger.debug("FetchDynamicConfig : fetchResultFromDestination : START");
-
-        StringBuffer sb = new StringBuffer();
-        try {
-            HttpClient client = HttpClientBuilder.create().build();
-            HttpGet request = new HttpGet(url);
-            HttpResponse response = client.execute(request);
-            BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
-            String line = "";
-            while ((line = rd.readLine()) != null) {
-                sb.append(line);
-                sb.append('\n');
-            }
-        } catch (ClientProtocolException e) {
-            debugLogger.debug("FetchDynamicConfig : fetchResultFromDestination : ClientProtocolException thrown.", e);
-        } catch (UnsupportedOperationException e) {
-            debugLogger.debug("FetchDynamicConfig : fetchResultFromDestination : UnsupportedOperationException thrown.",
-                    e);
-        } catch (IOException e) {
-            debugLogger.debug("FetchDynamicConfig : fetchResultFromDestination : IOException thrown.", e);
-        }
-
-        debugLogger.debug("FetchDynamicConfig : fetchResultFromDestination : END");
-        return sb.toString();
-    }
-
-}