Java tutorial
/** * Copyright (c) 2015 Mustafa DUMLUPINAR, mdumlupinar@gmail.com * * This file is part of seyhan project. * * seyhan is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package models; import java.util.ArrayList; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import javax.persistence.Entity; import com.fasterxml.jackson.databind.node.ArrayNode; import com.fasterxml.jackson.databind.node.ObjectNode; import play.data.validation.Constraints; import play.db.ebean.Model; import play.i18n.Messages; import play.libs.Json; import utils.CacheUtils; import enums.Right; @Entity /** * @author mdpinar */ public class StockCategory extends BaseModel { private static final long serialVersionUID = 1L; public Integer par1Id; public Integer par2Id; public Integer par3Id; public Integer par4Id; public Integer par5Id; @Constraints.Required @Constraints.MinLength(1) @Constraints.MaxLength(30) public String name; public StockCategory() { super(); } public StockCategory(Integer parentid) { this(); StockCategory parent = findById(parentid); if (parent == null) return; if (parent.par1Id == null) { this.par1Id = parent.id; } else if (parent.par2Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.id; } else if (parent.par3Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.par2Id; this.par3Id = parent.id; } else if (parent.par4Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.par2Id; this.par3Id = parent.par3Id; this.par4Id = parent.id; } else if (parent.par5Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.par2Id; this.par3Id = parent.par3Id; this.par4Id = parent.par4Id; this.par5Id = parent.id; } } public StockCategory(StockCategory parent) { this(); if (parent == null) return; this.name = parent.name; if (parent.par1Id == null) { this.par1Id = parent.id; } else if (parent.par2Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.id; } else if (parent.par3Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.par2Id; this.par3Id = parent.id; } else if (parent.par4Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.par2Id; this.par3Id = parent.par3Id; this.par4Id = parent.id; } else if (parent.par5Id == null) { this.par1Id = parent.par1Id; this.par2Id = parent.par2Id; this.par3Id = parent.par3Id; this.par4Id = parent.par4Id; this.par5Id = parent.id; } } private static Model.Finder<Integer, StockCategory> find = new Model.Finder<Integer, StockCategory>( Integer.class, StockCategory.class); /** * Converts json tree what flat rows in database * * There are many repeated code blocks which same of the each other in this method, fix it * */ public static String listAllAsJson() { String result = CacheUtils.getValue(StockCategory.class, "listAll"); if (result != null) return result; List<StockCategory> rootList = new ArrayList<StockCategory>(); Map<Integer, List<StockCategory>> level1Map = new LinkedHashMap<Integer, List<StockCategory>>(); Map<Integer, List<StockCategory>> level2Map = new LinkedHashMap<Integer, List<StockCategory>>(); Map<Integer, List<StockCategory>> level3Map = new LinkedHashMap<Integer, List<StockCategory>>(); Map<Integer, List<StockCategory>> level4Map = new LinkedHashMap<Integer, List<StockCategory>>(); Map<Integer, List<StockCategory>> level5Map = new LinkedHashMap<Integer, List<StockCategory>>(); List<StockCategory> codeList = find.where().eq("workspace", CacheUtils.getWorkspaceId()).orderBy("name") .findList(); for (StockCategory item : codeList) { if (item.par5Id != null) { arrangeItems(level5Map, item, item.par5Id); } else if (item.par5Id == null && item.par4Id != null) { arrangeItems(level4Map, item, item.par4Id); } else if (item.par4Id == null && item.par3Id != null) { arrangeItems(level3Map, item, item.par3Id); } else if (item.par3Id == null && item.par2Id != null) { arrangeItems(level2Map, item, item.par2Id); } else if (item.par2Id == null && item.par1Id != null) { arrangeItems(level1Map, item, item.par1Id); } else if (item.par1Id == null) { rootList.add(item); } } /** * Root level */ ArrayNode rootAN = Json.newObject().arrayNode(); for (StockCategory rootItem : rootList) { ObjectNode itemRL = Json.newObject(); itemRL.put("key", rootItem.id); itemRL.put("title", rootItem.name); if (level1Map.containsKey(rootItem.id)) { itemRL.put("isFolder", true); /** * Level 1 */ ArrayNode level1AN = Json.newObject().arrayNode(); List<StockCategory> level1List = level1Map.get(rootItem.id); for (StockCategory level1Item : level1List) { ObjectNode item1L = Json.newObject(); item1L.put("key", level1Item.id); item1L.put("title", level1Item.name); if (level2Map.containsKey(level1Item.id)) { item1L.put("isFolder", true); /** * Level 2 */ ArrayNode level2AN = Json.newObject().arrayNode(); List<StockCategory> level2List = level2Map.get(level1Item.id); for (StockCategory level2Item : level2List) { ObjectNode item2L = Json.newObject(); item2L.put("key", level2Item.id); item2L.put("title", level2Item.name); if (level3Map.containsKey(level2Item.id)) { item2L.put("isFolder", true); /** * Level 3 */ ArrayNode level3AN = Json.newObject().arrayNode(); List<StockCategory> level3List = level3Map.get(level2Item.id); for (StockCategory level3Item : level3List) { ObjectNode item3L = Json.newObject(); item3L.put("key", level3Item.id); item3L.put("title", level3Item.name); if (level4Map.containsKey(level3Item.id)) { item3L.put("isFolder", true); /** * Level 4 */ ArrayNode level4AN = Json.newObject().arrayNode(); List<StockCategory> level4List = level4Map.get(level3Item.id); for (StockCategory level4Item : level4List) { ObjectNode item4L = Json.newObject(); item4L.put("key", level4Item.id); item4L.put("title", level4Item.name); if (level5Map.containsKey(level4Item.id)) { item4L.put("isFolder", true); /** * Level 5 */ ArrayNode level5AN = Json.newObject().arrayNode(); List<StockCategory> level5List = level5Map.get(level4Item.id); for (StockCategory level5Item : level5List) { ObjectNode item5L = Json.newObject(); item5L.put("key", level5Item.id); item5L.put("title", level5Item.name); level5AN.add(item5L); } item4L.put("children", level5AN); } level4AN.add(item4L); } item3L.put("children", level4AN); } level3AN.add(item3L); } item2L.put("children", level3AN); } level2AN.add(item2L); } item1L.put("children", level2AN); } level1AN.add(item1L); } itemRL.put("children", level1AN); } rootAN.add(itemRL); } result = Json.stringify(rootAN); CacheUtils.setValue(StockCategory.class, "listAll", result); return result; } private static void arrangeItems(Map<Integer, List<StockCategory>> map, StockCategory item, Integer parId) { List<StockCategory> list = map.get(parId); if (list == null) list = new ArrayList<StockCategory>(); if (!list.contains(item)) { list.add(item); } map.put(parId, list); } public static StockCategory findById(Integer id) { StockCategory result = CacheUtils.getById(StockCategory.class, id); if (result == null) { result = find.byId(id); if (result != null) CacheUtils.setById(StockCategory.class, id, result); } return result; } @Override public Right getAuditRight() { return Right.STOK_KATEGORI_TANITIMI; } @Override public String getAuditDescription() { return Messages.get("audit.name") + this.name; } @Override public String toString() { return name; } }