Son-handler microservice seed code

[dcaegen2/services/son-handler.git] / src / main / java / com / wipro / www / sonhms / Application.java

diff --git a/src/main/java/com/wipro/www/sonhms/Application.java b/src/main/java/com/wipro/www/sonhms/Application.java
new file mode 100644 (file)
index 0000000..4c831b4
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+++ b/src/main/java/com/wipro/www/sonhms/Application.java
@@ -0,0 +1,128 @@
+/*******************************************************************************
+ * ============LICENSE_START=======================================================
+ * pcims
+ *  ================================================================================
+ *  Copyright (C) 2018 Wipro Limited.
+ *  ==============================================================================
+ *   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 com.wipro.www.sonhms;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.wipro.www.sonhms.dmaap.DmaapClient;
+import com.wipro.www.sonhms.restclient.PolicyRestClient;
+import com.wipro.www.sonhms.utils.FileIo;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.annotation.PostConstruct;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    @Autowired
+    DmaapClient dmaapClient;
+
+    @Autowired
+    MainThreadComponent mainThreadComponent;
+
+    private static Logger log = LoggerFactory.getLogger(Application.class);
+
+    /**
+     * Main method where the pci context is initially set.
+     */
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class);
+
+    }
+
+    /**
+     * initialization.
+     */
+    @PostConstruct
+    void init() {
+        getConfig();
+        fetchIntialConfigFromPolicy();
+        NewNotification newNotification = new NewNotification(false);
+        dmaapClient.initClient(newNotification);
+        mainThreadComponent.init(newNotification);
+    }
+
+    /**
+     * Gets configuration from policy.
+     */
+    @SuppressWarnings("unchecked")
+    private void fetchIntialConfigFromPolicy() {
+        log.debug("fetch initial config from policy");
+        String configPolicyResponseJson = PolicyRestClient.fetchConfigFromPolicy();
+        if (configPolicyResponseJson.equals("Post failed")) {
+            log.debug("cannot fetch config from policy");
+            return;
+        }
+        ObjectMapper mapper = new ObjectMapper();
+        List<HashMap<String, Object>> configPolicyResponse = new ArrayList<>();
+        try {
+            configPolicyResponse = mapper.readValue(configPolicyResponseJson, List.class);
+        } catch (IOException e) {
+            log.debug("exception during parsing response from policy", e);
+        }
+        String configPolicyJson = null;
+        if (configPolicyResponse != null) {
+            configPolicyJson = (String) configPolicyResponse.get(0).get("config");
+        } else {
+            return;
+        }
+        Map<String, Object> configPolicyMap = new HashMap<>();
+        try {
+            configPolicyMap = mapper.readValue(configPolicyJson, HashMap.class);
+        } catch (IOException e) {
+            log.debug("exception during parsing config body from policy", e);
+        }
+        ConfigPolicy configPolicy = ConfigPolicy.getInstance();
+        configPolicy.setConfig(configPolicyMap);
+        if (log.isDebugEnabled()) {
+            log.debug(configPolicy.toString());
+        }
+    }
+
+    /**
+     * Gets config from config.json.
+     *
+     */
+    private void getConfig() {
+        log.debug("getting initial config");
+        String configJson = FileIo.readFromFile("/etc/config.json");
+        ObjectMapper mapper = new ObjectMapper();
+        Configuration configuration = Configuration.getInstance();
+        try {
+            mapper.readerForUpdating(configuration).readValue(configJson);
+            if (log.isDebugEnabled()) {
+                log.debug(configuration.toString());
+            }
+        } catch (IOException e) {
+            log.debug("exception during parsing configuration", e);
+        }
+    }
+}