com.mtt.myapp.operation.cotroller.SystemConfigController.java Source code

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Here is the source code for com.mtt.myapp.operation.cotroller.SystemConfigController.java

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/* 
 * 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. 
 */
package com.mtt.myapp.operation.cotroller;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;

import com.mtt.myapp.common.controller.BaseController;
import com.mtt.myapp.operation.service.SystemConfigService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

/**
 * System configuration controller.
 *
 * @author Alex Qin
 * @since 3.1
 */
@Controller
@RequestMapping("/operation/system_config")
public class SystemConfigController extends BaseController {

    @Autowired
    private SystemConfigService systemConfigService;

    /**
     * Open the system configuration editor.
     *
     * @param model model
     * @return operation/system_config
     */
    @RequestMapping("")
    public String getOne(ModelMap model) {
        model.addAttribute("content", systemConfigService.getOne());
        return "operation/system_config";
    }

    /**
     * Save the system configuration.
     *
     * @param content system configuration content to be saved
     * @param model   model
     * @return operation/system_config
     */
    @RequestMapping("/save")
    public String save(@RequestParam final String content, ModelMap model) {
        systemConfigService.save(content);
        model.clear();
        return "redirect:/operation/system_config";
    }

    /**
     * Get the system configuration.
     *
     * @return system configuration
     */
    //@RestAPI
    @RequestMapping(value = "/api", method = RequestMethod.GET)
    public HttpEntity<String> getOne() {
        return toJsonHttpEntity(systemConfigService.getOne());
    }

    /**
     * Save the system configuration.
     *
     * @param content system configuration content to be saved
     * @return true if succeeded
     */
    //@RestAPI
    @RequestMapping(value = "/api", method = RequestMethod.POST)
    public HttpEntity<String> save(@RequestParam(required = true) final String content) {
        checkState(StringUtils.isBlank(content), "content should NOT be empty.");
        systemConfigService.save(content);
        return successJsonHttpEntity();
    }
}