Java tutorial
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We also recommend that a // file or class name and description of purpose be included on the // same "printed page" as the copyright notice for easier // identification within third-party archives. // // Copyright [yyyy] [name of copyright owner] // // 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 org.caldfir.rawxml.tools; import java.io.FileNotFoundException; import java.io.FileReader; import java.util.HashMap; import java.util.Scanner; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantReadWriteLock; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.collections.map.MultiValueMap; public class Relationship { private static Relationship instance; private MultiValueMap map; private HashMap<String, String> redirect; private final ReentrantReadWriteLock rwl; private final Lock r; private final Lock w; public static Relationship getInstance() { if (instance == null) { instance = new Relationship(); } return instance; } private Relationship() { map = new MultiValueMap(); redirect = buildRedirect(); rwl = new ReentrantReadWriteLock(); r = rwl.readLock(); w = rwl.writeLock(); } private HashMap<String, String> buildRedirect() { HashMap<String, String> direct = new HashMap<String, String>(); try { String s; FileReader f = new FileReader("Paramaters/directory.txt"); Scanner scn = new Scanner(f); Pattern pSimp = Pattern.compile("[\"]([0-9a-zA-Z_]*)[\"][ \t]*[\"]([0-9a-zA-Z_]*)[\"]"); Matcher mSimp; while (scn.hasNextLine()) { s = scn.nextLine(); mSimp = pSimp.matcher(s); if (mSimp.matches()) { direct.put(mSimp.group(1), mSimp.group(2)); } } } catch (FileNotFoundException e) { ErrorWriter ew = ErrorWriter.getInstance(); ew.write("could not locate \"Paramaters/directory.txt\""); } // direct.put("ATTACK", "ATTACK"); // direct.put("BODY_APPEARANCE_MODIFIER", "BODY_APPEARANCE_MODIFIER"); // direct.put("BP_APPEARANCE_MODIFIER", "BODY_APPEARANCE_MODIFIER"); // direct.put("BODY_DETAIL_PLAN", "BODY_DETAIL_PLAN"); // direct.put("CASTE", "CASTE"); // direct.put("SELECT_CASTE", "CASTE"); // direct.put("COLOR", "COLOR"); // direct.put("CREATURE", "CREATURE"); // direct.put("CAN_DO_INTERACTION", "CAN_DO_INTERACTION"); // direct.put("CE_CAN_DO_INTERACTION", "CAN_DO_INTERACTION"); // direct.put("CE_BODY_TRANSFORMATION", "CE_BODY_TRANSFORMATION"); // direct.put("EXTRA_BUTCHER_OBJECT", "EXTRA_BUTCHER_OBJECT"); // direct.put("OBJECT", "OBJECT"); // direct.put("INTERACTION", "INTERACTION"); // direct.put("I_TARGET", "I_TARGET"); // direct.put("I_EFFECT", "I_EFFECT"); // direct.put("I_SOURCE", "I_SOURCE"); // direct.put("BASIC_MAT", "MATERIAL"); // direct.put("MATERIAL_TEMPLATE", "MATERIAL"); // direct.put("MATERIAL", "MATERIAL"); // direct.put("SELECT_MATERIAL", "MATERIAL"); // direct.put("USE_MATERIAL", "MATERIAL"); // direct.put("USE_MATERIAL_TEMPLATE", "MATERIAL"); // direct.put("INORGANIC", "INORGANIC"); // direct.put("TISSUE_LAYER", "TISSUE_LAYER"); // direct.put("SELECT_TISSUE_LAYER", "TISSUE_LAYER"); // direct.put("SET_TL_GROUP", "TISSUE_LAYER"); // direct.put("SET_BP_GROUP", "SET_BP_GROUP"); // direct.put("TISSUE_LAYER_APPEARANCE_MODIFIER","TISSUE_LAYER_APPEARANCE_MODIFIER"); // direct.put("TISSUE_STYLE_UNIT", "TISSUE_STYLE_UNIT"); // direct.put("TISSUE_TEMPLATE", "TISSUE"); // direct.put("TISSUE", "TISSUE"); // direct.put("SELECT_TISSUE", "TISSUE"); // direct.put("USE_TISSUE_TEMPLATE", "TISSUE"); // direct.put("USE_TISSUE", "TISSUE"); // direct.put("TL_COLOR_MODIFIER", "TL_COLOR_MODIFIER"); // direct.put("LAYS_EGGS", "LAYS_EGGS"); // direct.put("SYNDROME", "SYNDROME"); // direct.put("BP", "BP"); // direct.put("BODY", "BODY"); // direct.put("BUILDING_FURNACE", "BUILDING_WORKSHOP"); // direct.put("BUILDING_WORKSHOP", "BUILDING_WORKSHOP"); // direct.put("BUILD_ITEM", "BUILD_ITEM"); // direct.put("CV_CONVERT_TAG", "CV_CONVERT_TAG"); // direct.put("CREATURE_VARIATION", "CREATURE_VARIATION"); // direct.put("COLOR_PATTERN", "COLOR_PATTERN"); // direct.put("SHAPE", "SHAPE"); // direct.put("ENTITY", "ENTITY"); // direct.put("WEAPON", "WEAPON"); // direct.put("POSITION", "POSITION"); // direct.put("TISSUE_STYLE", "TISSUE_STYLE"); // direct.put("ITEM_WEAPON", "ITEM_WEAPON"); // direct.put("ITEM_TOY", "ITEM_TOY"); // direct.put("ITEM_TOOL", "ITEM_TOOL"); // direct.put("ITEM_INSTRUMENT", "ITEM_INSTRUMENT"); // direct.put("ITEM_TRAPCOMP", "ITEM_TRAPCOMP"); // direct.put("ITEM_AMMO", "ITEM_AMMO"); // direct.put("ITEM_SIEGEAMMO", "ITEM_SIEGEAMMO"); // direct.put("ITEM_ARMOR", "ITEM_ARMOR"); // direct.put("ITEM_GLOVES", "ITEM_ARMOR"); // direct.put("ITEM_SHOES", "ITEM_ARMOR"); // direct.put("ITEM_SHIELD", "ITEM_ARMOR"); // direct.put("ITEM_HELM", "ITEM_ARMOR"); // direct.put("ITEM_PANTS", "ITEM_ARMOR"); // direct.put("ITEM_FOOD", "ITEM_FOOD"); // direct.put("SYMBOL", "SYMBOL"); // direct.put("TRANSLATION", "TRANSLATION"); // direct.put("WORD", "WORD"); // direct.put("NOUN", "NOUN"); // direct.put("ADJ", "ADJ"); // direct.put("VERB", "VERB"); // direct.put("PREFIX", "PREFIX"); // direct.put("PLANT", "PLANT"); // direct.put("REACTION", "REACTION"); // direct.put("REAGENT", "REAGENT"); // direct.put("PRODUCT", "PRODUCT"); return direct; } public boolean lookup(String parent, String child) { r.lock(); if (map.getCollection(parent) == null) { try { r.unlock(); w.lock(); FileReader f = new FileReader("Paramaters/" + redirect.get(parent) + ".txt"); Scanner scn = new Scanner(f); while (scn.hasNextLine()) { map.put(parent, scn.nextLine()); } } catch (FileNotFoundException e) { map.put(parent, ""); } finally { w.unlock(); r.lock(); } } boolean contains = map.containsValue(parent, child); r.unlock(); return contains; } }