118 lines
2.8 KiB
C++
118 lines
2.8 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#ifndef DORIS_BE_PLUGIN_PLUGIN_LOADER_H
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#define DORIS_BE_PLUGIN_PLUGIN_LOADER_H
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#include <string>
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#include <memory>
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#include <vector>
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#include "gen_cpp/Types_types.h"
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#include "common/status.h"
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#include "plugin/plugin.h"
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namespace doris {
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class PluginLoader {
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public:
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PluginLoader(const std::string& name, int type): _name(name), _type(type), _close(false) {}
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virtual ~PluginLoader() {};
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virtual Status install() = 0;
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virtual Status uninstall() = 0;
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virtual std::shared_ptr<Plugin>& plugin() {
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return _plugin;
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};
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const std::string& name() {
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return _name;
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}
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int type() {
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return _type;
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}
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protected:
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virtual Status open_valid();
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virtual Status close_valid();
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protected:
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std::string _name;
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int _type;
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std::shared_ptr<Plugin> _plugin;
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bool _close;
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};
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class DynamicPluginLoader: public PluginLoader {
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public:
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DynamicPluginLoader(const std::string& name, int type, const std::string& source, const std::string& so_name,
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const std::string& install_path) : PluginLoader(name, type), _source(source), _so_name(so_name),
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_install_path(install_path), _plugin_handler(nullptr) {
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};
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virtual ~DynamicPluginLoader() {
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// just close plugin, but don't clean install path (maybe other plugin has used)
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WARN_IF_ERROR(close_plugin(), "close plugin failed.");
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};
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virtual Status install();
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virtual Status uninstall();
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private:
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Status open_plugin();
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Status close_plugin();
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private:
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std::string _source;
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std::string _so_name;
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std::string _install_path;
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void* _plugin_handler;
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};
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class BuiltinPluginLoader : public PluginLoader {
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public:
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BuiltinPluginLoader(const std::string& name, int type, const Plugin* plugin);
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virtual ~BuiltinPluginLoader() {
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WARN_IF_ERROR(uninstall(), "close plugin failed.");
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}
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virtual Status install();
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virtual Status uninstall();
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};
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}
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#endif //DORIS_BE_PLUGIN_PLUGIN_LOADER_H
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