/**
 * Copyright (c) 2015, biezhi 王爵 (biezhi.me@gmail.com)
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.
 */
package com.blade.mvc.route.loader;

import com.blade.Blade;
import com.blade.exception.RouteException;
import com.blade.ioc.Ioc;
import com.blade.kit.StringKit;

/**
 * ClassPath controller of loader
 *
 * @author <a href="mailto:biezhi.me@gmail.com" target="_blank">biezhi</a>
 * @since 1.5
 */
public class ClassPathControllerLoader implements ControllerLoader {

    private String basePackage;

    private ClassLoader classLoader = ClassPathControllerLoader.class.getClassLoader();

    private Ioc ioc = Blade.$().ioc();

    public ClassPathControllerLoader() {
        this("");
    }

    public ClassPathControllerLoader(String basePackage) {
        this.basePackage = basePackage;

        if (StringKit.isNotBlank(basePackage)) {
            if (!this.basePackage.endsWith(".")) {
                this.basePackage += '.';
            }
        }
    }

    @Override
    public Object load(String controllerName) throws RouteException {
        String className = basePackage + controllerName;

        try {
            // Load controller instance
            Class<?> controllerClass = classLoader.loadClass(className);

            Object controller = ioc.getBean(controllerClass);
            if (null == controller) {
                ioc.addBean(controllerClass);
                controller = ioc.getBean(controllerClass);
            }
            return controller;
        } catch (Exception e) {
            throw new RouteException(e);
        }
    }

    public String getBasePackage() {
        return basePackage;
    }

    public void setBasePackage(String basePackage) {
        this.basePackage = basePackage;
    }

    public ClassLoader getClassLoader() {
        return classLoader;
    }

    public void setClassLoader(ClassLoader classLoader) {
        this.classLoader = classLoader;
    }

}