123 lines
3.4 KiB
Java
123 lines
3.4 KiB
Java
/*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.l2jserver.gameserver.scripting;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.util.Map;
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import java.util.logging.Logger;
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import javax.script.Compilable;
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import javax.script.CompiledScript;
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import javax.script.ScriptEngine;
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import javax.script.ScriptException;
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import javolution.util.FastMap;
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import com.l2jserver.Config;
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/**
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* Cache of Compiled Scripts
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* @author KenM
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*/
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public class CompiledScriptCache implements Serializable
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{
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/**
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* Version 1
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*/
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private static final long serialVersionUID = 1L;
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private static final Logger LOG = Logger.getLogger(CompiledScriptCache.class.getName());
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private final Map<String, CompiledScriptHolder> _compiledScriptCache = new FastMap<>();
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private transient boolean _modified = false;
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public CompiledScript loadCompiledScript(ScriptEngine engine, File file) throws FileNotFoundException, ScriptException
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{
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int len = L2ScriptEngineManager.SCRIPT_FOLDER.getPath().length() + 1;
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String relativeName = file.getPath().substring(len);
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CompiledScriptHolder csh = _compiledScriptCache.get(relativeName);
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if ((csh != null) && csh.matches(file))
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{
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if (Config.DEBUG)
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{
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LOG.fine("Reusing cached compiled script: " + file);
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}
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return csh.getCompiledScript();
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}
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if (Config.DEBUG)
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{
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LOG.info("Compiling script: " + file);
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}
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Compilable eng = (Compilable) engine;
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BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
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// TODO lock file
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CompiledScript cs = eng.compile(reader);
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if (cs instanceof Serializable)
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{
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synchronized (_compiledScriptCache)
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{
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_compiledScriptCache.put(relativeName, new CompiledScriptHolder(cs, file));
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_modified = true;
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}
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}
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return cs;
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}
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public boolean isModified()
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{
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return _modified;
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}
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public void purge()
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{
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synchronized (_compiledScriptCache)
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{
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for (String path : _compiledScriptCache.keySet())
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{
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File file = new File(L2ScriptEngineManager.SCRIPT_FOLDER, path);
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if (!file.isFile())
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{
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_compiledScriptCache.remove(path);
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_modified = true;
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}
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}
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}
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}
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public void save() throws FileNotFoundException, IOException
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{
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synchronized (_compiledScriptCache)
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{
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try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File(L2ScriptEngineManager.SCRIPT_FOLDER, "CompiledScripts.cache"))))
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{
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oos.writeObject(this);
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}
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_modified = false;
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}
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}
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}
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