Java tutorial
/** * Warlock, the open-source cross-platform game client * * Copyright 2008, Warlock LLC, and individual contributors as indicated * by the @authors tag. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package cc.warlock.core.script.configuration; import java.io.File; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import java.util.TreeSet; import org.dom4j.DocumentHelper; import org.dom4j.Element; import cc.warlock.core.client.IProperty; import cc.warlock.core.client.internal.Property; import cc.warlock.core.configuration.ConfigurationUtil; import cc.warlock.core.configuration.IConfigurationProvider; import cc.warlock.core.script.javascript.JavascriptEngine; public class ScriptConfiguration implements IConfigurationProvider { protected TreeSet<File> scriptDirectories = new TreeSet<File>(); protected Property<Boolean> autoScan, suppressExceptions; protected Property<Long> scanTimeout; protected String scriptPrefix; protected HashMap<String, ArrayList<String>> engineExtensions = new HashMap<String, ArrayList<String>>(); protected static ScriptConfiguration _instance; public static ScriptConfiguration instance() { if (_instance == null) _instance = new ScriptConfiguration(); return _instance; } protected ScriptConfiguration() { autoScan = new Property<Boolean>(true); suppressExceptions = new Property<Boolean>(true); scanTimeout = new Property<Long>(500L); scriptPrefix = "."; addEngineExtension(JavascriptEngine.ENGINE_ID, "js"); scriptDirectories.add(ConfigurationUtil.getUserDirectory("scripts", false)); scriptDirectories.add(ConfigurationUtil.getUserDirectory("warlock-scripts", false)); scriptDirectories.add(ConfigurationUtil.getConfigurationDirectory("scripts", false)); } protected void clear() { scriptDirectories.clear(); autoScan.set(true); suppressExceptions.set(false); scanTimeout.set((long) 500); engineExtensions.clear(); scriptPrefix = "."; } public List<Element> getTopLevelElements() { ArrayList<Element> elements = new ArrayList<Element>(); Element scriptConfig = DocumentHelper.createElement("script-config"); elements.add(scriptConfig); addScriptConfigElements(scriptConfig); return elements; } protected void addScriptConfigElements(Element scriptConfig) { for (File dir : scriptDirectories) { Element dirElement = DocumentHelper.createElement("dir"); dirElement.setText(dir.getAbsolutePath()); scriptConfig.add(dirElement); } Element autoScanElement = DocumentHelper.createElement("autoScan"); autoScanElement.addAttribute("timeout", "" + scanTimeout.get()); autoScanElement.setText(autoScan.get() + ""); scriptConfig.add(autoScanElement); Element suppressExceptionsElement = DocumentHelper.createElement("suppressExceptions"); suppressExceptionsElement.setText(suppressExceptions.get() + ""); scriptConfig.add(suppressExceptionsElement); Element scriptPrefixElement = DocumentHelper.createElement("script-prefix"); scriptPrefixElement.setText(scriptPrefix); scriptConfig.add(scriptPrefixElement); addEngineExtensionsConfig(scriptConfig); } public void addEngineExtension(String engineId, String extension) { ArrayList<String> extensions; if (engineExtensions.containsKey(engineId)) { extensions = engineExtensions.get(engineId); } else { extensions = new ArrayList<String>(); engineExtensions.put(engineId, extensions); } // If we already have the extension, don't add it if (!extensions.contains(extension)) extensions.add(extension); } protected void addEngineExtensionsConfig(Element scriptConfig) { for (Map.Entry<String, ArrayList<String>> entry : engineExtensions.entrySet()) { Element engineElement = DocumentHelper.createElement("engine-file-extensions"); engineElement.addAttribute("engineId", entry.getKey()); scriptConfig.add(engineElement); for (String extension : entry.getValue()) { Element extElement = DocumentHelper.createElement("extension"); extElement.setText(extension); engineElement.add(extElement); } } } public void parseElement(Element element) { if (element.getName().equals("script-config")) { parseScriptConfig(element); } } public void parseScriptConfig(Element scriptConfig) { // clear(); for (Element element : (List<Element>) scriptConfig.elements()) { if ("dir".equals(element.getName())) { scriptDirectories.add(new File(element.getTextTrim())); } else if ("autoScan".equals(element.getName())) { scanTimeout.set(Long.parseLong(element.attributeValue("timeout"))); autoScan.set(Boolean.parseBoolean(element.getTextTrim())); } else if ("suppressExceptions".equals(element.getName())) { suppressExceptions.set(Boolean.parseBoolean(element.getTextTrim())); } else if ("script-prefix".equals(element.getName())) { scriptPrefix = element.getTextTrim(); } else if ("engine-file-extensions".equals(element.getName())) { for (Element extElement : (List<Element>) element.elements()) { addEngineExtension(element.attributeValue("engineId"), extElement.getTextTrim()); } } } } public boolean supportsElement(Element element) { if (element.getName().equals("script-config")) { return true; } return false; } public IProperty<Boolean> getAutoScan() { return autoScan; } public IProperty<Long> getScanTimeout() { return scanTimeout; } public IProperty<Boolean> getSupressExceptions() { return suppressExceptions; } public List<String> getEngineExtensions(String engineId) { if (engineExtensions.containsKey(engineId)) return engineExtensions.get(engineId); return Collections.emptyList(); } public Set<File> getScriptDirectories() { return scriptDirectories; } public String getScriptPrefix() { return scriptPrefix; } public void setScriptPrefix(String scriptPrefix) { this.scriptPrefix = scriptPrefix; } }