com.epam.eco.kafkamanager.ui.metrics.udm.UDMetricsController Maven / Gradle / Ivy

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 *  Copyright 2022 EPAM Systems
 *
 *  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.epam.eco.kafkamanager.ui.metrics.udm;

import java.util.Map;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import com.epam.eco.kafkamanager.udmetrics.UDMetric;
import com.epam.eco.kafkamanager.udmetrics.UDMetricSearchCriteria;


/**
 * @author Andrei_Tytsik
 */
@Controller
public class UDMetricsController extends UDMAbstractController {

    private static final int PAGE_SIZE = 30;

    public static final String VIEW = "udmetrics";

    public static final String ATTR_PAGE = "page";
    public static final String ATTR_SEARCH_CRITERIA = "searchCriteria";
    public static final String ATTR_TOTAL_COUNT = "totalCount";
    public static final String HAS_ERRORS = "hasErrors";

    public static final String MAPPING = "/udmetrics";

    @RequestMapping(value=MAPPING, method=RequestMethod.GET)
    public String metrics(
            @RequestParam(required=false) Integer page,
            @RequestParam Map paramsMap,
            Model model) {
        if (!isUdmEnabled()) {
            return VIEW_UDM_DISABLED;
        }

        UDMetricSearchCriteria searchCriteria = UDMetricSearchCriteria.fromJson(paramsMap);
        page = page != null && page > 0 ? page -1 : 0;

        Page metricPage = udMetricManager.page(
                searchCriteria,
                PageRequest.of(page, PAGE_SIZE));

        model.addAttribute(ATTR_SEARCH_CRITERIA, searchCriteria);
        model.addAttribute(ATTR_PAGE, wrap(metricPage));
        model.addAttribute(ATTR_TOTAL_COUNT, udMetricManager.getCount());
        model.addAttribute(HAS_ERRORS, udMetricManager.hasErrors());

        return VIEW;
    }

    @RequestMapping(value=MAPPING, method=RequestMethod.PATCH)
    public String updateFailed() {
        udMetricManager.updateAllFailed();
        return "redirect:/" + VIEW;
    }

    private Page wrap(Page page) {
        return page.map(UDMetricWrapper::wrap);
    }

}