adding default values for model

Author: udaij12

frontend/archive/src/main/java/org/pytorch/serve/archive/model/ModelConfig.java

@@ -127,12 +127,9 @@ public static ModelConfig build(Map<String, Object> yamlMap) {
                         case "startupTimeout":
                             if (v instanceof Integer) {
                                 modelConfig.setStartupTimeout((int) v);
-                            } else if {
+                            } else {
                                 logger.warn("Invalid startupTimeout: {}, should be integer", v);
                             }
-                            else {
-                                modelConfig.setStartupTimeout(startupTimeout);
-                            }
                             break;
                         case "deviceType":
                             if (v instanceof String) {

frontend/server/src/main/java/org/pytorch/serve/wlm/Model.java

@@ -190,12 +190,29 @@ public JsonObject getModelState(boolean isDefaultVersion) {
     }
 
     public void setModelState(JsonObject modelInfo) {
-        minWorkers = modelInfo.get(MIN_WORKERS).getAsInt();
-        maxWorkers = modelInfo.get(MAX_WORKERS).getAsInt();
-        maxBatchDelay = modelInfo.get(MAX_BATCH_DELAY).getAsInt();
-        responseTimeout = modelInfo.get(RESPONSE_TIMEOUT).getAsInt();
-        startupTimeout = modelInfo.get(STARTUP_TIMEOUT).getAsInt();
-        batchSize = modelInfo.get(BATCH_SIZE).getAsInt();
+        minWorkers = modelInfo.has(MIN_WORKERS) && !modelInfo.get(MIN_WORKERS).isJsonNull()
+                ? modelInfo.get(MIN_WORKERS).getAsInt()
+                : 1;  // default value for minWorkers
+
+        maxWorkers = modelInfo.has(MAX_WORKERS) && !modelInfo.get(MAX_WORKERS).isJsonNull()
+                ? modelInfo.get(MAX_WORKERS).getAsInt()
+                : 5;  // default value for maxWorkers
+
+        maxBatchDelay = modelInfo.has(MAX_BATCH_DELAY) && !modelInfo.get(MAX_BATCH_DELAY).isJsonNull()
+                ? modelInfo.get(MAX_BATCH_DELAY).getAsInt()
+                : 100;  // default value for maxBatchDelay
+
+        responseTimeout = modelInfo.has(RESPONSE_TIMEOUT) && !modelInfo.get(RESPONSE_TIMEOUT).isJsonNull()
+                ? modelInfo.get(RESPONSE_TIMEOUT).getAsInt()
+                : 120;  // default value for responseTimeout
+
+        startupTimeout = modelInfo.has(STARTUP_TIMEOUT) && !modelInfo.get(STARTUP_TIMEOUT).isJsonNull()
+                ? modelInfo.get(STARTUP_TIMEOUT).getAsInt()
+                : 120;  // default value for startupTimeout
+
+        batchSize = modelInfo.has(BATCH_SIZE) && !modelInfo.get(BATCH_SIZE).isJsonNull()
+                ? modelInfo.get(BATCH_SIZE).getAsInt()
+                : 1;  // default value for batchSize
 
         JsonElement runtime = modelInfo.get(RUNTIME_TYPE);
         String runtime_str = Manifest.RuntimeType.PYTHON.getValue();