feat(db): add exception

Former-commit-id: b2a9deb7df0544a303858fff7f4d6eddf3e6b1f7

cpp/src/db/Exception.h

+/*******************************************************************************
+ * Copyright 上海赜睿信息科技有限公司(Zilliz) - All Rights Reserved
+ * Unauthorized copying of this file, via any medium is strictly prohibited.
+ * Proprietary and confidential.
+ ******************************************************************************/
+#pragma once
+
+#include <exception>
+#include <string>
+
+namespace zilliz {
+namespace vecwise {
+namespace engine {
+
+class Exception : public std::exception {
+public:
+    Exception(const std::string& message)
+        : message_(message) {
+        }
+
+    Exception()
+        : message_() {
+        }
+
+    virtual const char* what() const throw() {
+        if (message_.empty()) {
+            return "Default Exception.";
+        } else {
+            return message_.c_str();
+        }
+    }
+
+    virtual ~Exception() throw() {};
+
+protected:
+
+    std::string message_;
+};
+
+class InvalidArgumentException : public Exception {
+public:
+    InvalidArgumentException() : Exception("Invalid Argument"){};
+    InvalidArgumentException(const std::string& message) : Exception(message) {};
+};
+
+class OutOfRangeException : public Exception {
+public:
+    OutOfRangeException() : Exception("Out Of Range"){};
+    OutOfRangeException(const std::string& message) : Exception(message) {};
+};
+
+} // namespace engine
+} // namespace vecwise
+} // namespace zilliz

cpp/src/db/Options.cpp

@@ -11,6 +11,7 @@
 #include "Options.h"
 #include "Env.h"
 #include "DBMetaImpl.h"
+#include "Exception.h"
 
 namespace zilliz {
 namespace vecwise {
@@ -46,24 +47,29 @@ void ArchiveConf::ParseCritirias(const std::string& criterias) {
             LOG(WARNING) << "Invalid ArchiveConf Criterias: " << token << " Ignore!";
             continue;
         }
-        auto value = std::stoi(kv[1]);
-        criterias_[kv[0]] = value;
+        try {
+            auto value = std::stoi(kv[1]);
+            criterias_[kv[0]] = value;
+        }
+        catch (std::out_of_range&){
+            LOG(ERROR) << "Out of range: '" << kv[1] << "'";
+            throw OutOfRangeException();
+        }
+        catch (...){
+            LOG(ERROR) << "Invalid argument: '" << kv[1] << "'";
+            throw InvalidArgumentException();
+        }
     }
 }
 
 void ArchiveConf::ParseType(const std::string& type) {
     if (type != "delete" && type != "swap") {
-        LOG(ERROR) << "Invalid Archive";
-        assert(false);
+        LOG(ERROR) << "Invalid argument: type='" << type << "'";
+        throw InvalidArgumentException();
     }
     type_ = type;
 }
 
-/* DBMetaOptions::DBMetaOptions(const std::string& dbpath, */
-/*         const std::string& uri) */
-/*     : path(dbpath), backend_uri(uri) { */
-/* } */
-
 } // namespace engine
 } // namespace vecwise
 } // namespace zilliz