com.tcdng.jacklyn.common.utils.PageControllerSessionUtilsImpl Maven / Gradle / Ivy

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/*
 * Copyright 2018-2019 The Code Department.
 * 
 * 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.tcdng.jacklyn.common.utils;

import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.tcdng.jacklyn.common.annotation.CrudPanelList;
import com.tcdng.jacklyn.common.annotation.SessionAttr;
import com.tcdng.jacklyn.common.annotation.SessionLoading;
import com.tcdng.jacklyn.common.constants.CommonModuleNameConstants;
import com.tcdng.unify.core.AbstractUnifyComponent;
import com.tcdng.unify.core.UnifyException;
import com.tcdng.unify.core.annotation.Component;
import com.tcdng.unify.core.data.FactoryMap;
import com.tcdng.unify.core.database.Entity;
import com.tcdng.unify.core.util.ReflectUtils;
import com.tcdng.unify.web.PageController;
import com.tcdng.unify.web.ui.panel.TableCrudPanel;

/**
 * Page controller session utilities.
 * 
 * @author Lateef Ojulari
 * @since 1.0
 */
@Component(CommonModuleNameConstants.PAGECONTROLLERSESSIONUTILS)
public class PageControllerSessionUtilsImpl extends AbstractUnifyComponent implements PageControllerSessionUtils {

    private static final SessionLoadingConfig BLANK_CONFIG = new SessionLoadingConfig();

    private FactoryMap, SessionLoadingConfig> sessionLoadingConfigs;

    public PageControllerSessionUtilsImpl() {
        sessionLoadingConfigs = new FactoryMap, SessionLoadingConfig>() {

            @Override
            protected SessionLoadingConfig create(Class type, Object... params)
                    throws Exception {
                SessionLoadingConfig sessionLoadingConfig = BLANK_CONFIG;
                SessionLoading slsa = type.getAnnotation(SessionLoading.class);
                if (slsa != null) {
                    Map setAttributeConfigs = new HashMap();
                    for (SessionAttr saa : slsa.sessionAttributes()) {
                        setAttributeConfigs.put(saa.name(), saa.property());
                    }

                    Map crudPanelConfigs = new HashMap();
                    for (CrudPanelList cpl : slsa.crudPanelLists()) {
                        crudPanelConfigs.put(cpl.panel(), cpl.property());
                    }

                    sessionLoadingConfig = new SessionLoadingConfig(setAttributeConfigs, crudPanelConfigs);
                }
                return sessionLoadingConfig;
            }
        };
    }

    @SuppressWarnings("unchecked")
    @Override
    public  void loadSession(PageController pageController) throws UnifyException {
        SessionLoadingConfig slc = sessionLoadingConfigs.get(pageController.getClass());
        for (Map.Entry entry : slc.getSetAttributeConfigs().entrySet()) {
            setSessionAttribute(entry.getKey(), ReflectUtils.getNestedBeanProperty(pageController, entry.getValue()));
        }

        for (Map.Entry entry : slc.getCrudPanelConfigs().entrySet()) {
            ((TableCrudPanel) pageController.getPage().getWidgetByShortName(entry.getKey()))
                    .setRecordList((List) ReflectUtils.getNestedBeanProperty(pageController, entry.getValue()));
        }
    }

    @Override
    public void unloadSession(PageController pageController) throws UnifyException {
        SessionLoadingConfig slc = sessionLoadingConfigs.get(pageController.getClass());
        removeSessionAttributes(slc.getSetAttributeConfigs().keySet().toArray(new String[0]));
    }

    @Override
    protected void onInitialize() throws UnifyException {

    }

    @Override
    protected void onTerminate() throws UnifyException {

    }

    private static class SessionLoadingConfig {

        private Map setAttributeConfigs;

        private Map crudPanelConfigs;

        public SessionLoadingConfig() {
            setAttributeConfigs = Collections.emptyMap();
            crudPanelConfigs = Collections.emptyMap();
        }

        public SessionLoadingConfig(Map setAttributeConfigs, Map crudPanelConfigs) {
            this.setAttributeConfigs = setAttributeConfigs;
            this.crudPanelConfigs = crudPanelConfigs;
        }

        public Map getSetAttributeConfigs() {
            return setAttributeConfigs;
        }

        public Map getCrudPanelConfigs() {
            return crudPanelConfigs;
        }
    }
}