001/*
002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Stephane Lacoin <slacoin@nuxeo.com>
018 *     Vladimir Pasquier <vpasquier@nuxeo.com>
019 */
020package org.nuxeo.automation.scripting.internals;
021
022import java.util.List;
023
024import javax.script.ScriptEngine;
025import javax.script.ScriptEngineFactory;
026
027import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
028
029/**
030 * This script factory configure the Nashorn engine with cache (following
031 * {@link org.nuxeo.automation.scripting.internals.ScriptingCache#enabled}) and with Class Filter.
032 *
033 * @since 7.3
034 */
035public class ScriptingCacheClassFilter implements ScriptEngineFactory {
036
037    protected final NashornScriptEngineFactory nashornScriptEngineFactory;
038
039    protected final boolean cacheEnable;
040
041    public ScriptingCacheClassFilter(boolean cacheEnable) {
042        this.nashornScriptEngineFactory = new NashornScriptEngineFactory();
043        this.cacheEnable = cacheEnable;
044    }
045
046    @Override
047    public ScriptEngine getScriptEngine() {
048        if (cacheEnable) {
049            return nashornScriptEngineFactory.getScriptEngine(new String[] { "-strict", "--persistent-code-cache",
050                    "--class-cache-size=50" }, null, new AutomationScriptingClassFilter());
051        } else {
052            return nashornScriptEngineFactory.getScriptEngine(new AutomationScriptingClassFilter());
053        }
054    }
055
056    @Override
057    public String getProgram(String... statements) {
058        return nashornScriptEngineFactory.getProgram(statements);
059    }
060
061    @Override
062    public Object getParameter(String key) {
063        return nashornScriptEngineFactory.getParameter(key);
064    }
065
066    @Override
067    public String getOutputStatement(String toDisplay) {
068        return nashornScriptEngineFactory.getOutputStatement(toDisplay);
069    }
070
071    @Override
072    public List<String> getNames() {
073        return nashornScriptEngineFactory.getNames();
074    }
075
076    @Override
077    public List<String> getMimeTypes() {
078        return nashornScriptEngineFactory.getMimeTypes();
079    }
080
081    @Override
082    public String getMethodCallSyntax(String obj, String method, String... args) {
083        return nashornScriptEngineFactory.getMethodCallSyntax(obj, method, args);
084    }
085
086    @Override
087    public String getLanguageVersion() {
088        return nashornScriptEngineFactory.getLanguageVersion();
089    }
090
091    @Override
092    public String getLanguageName() {
093        return nashornScriptEngineFactory.getLanguageName();
094    }
095
096    @Override
097    public List<String> getExtensions() {
098        return nashornScriptEngineFactory.getExtensions();
099    }
100
101    @Override
102    public String getEngineVersion() {
103        return nashornScriptEngineFactory.getEngineVersion();
104    }
105
106    @Override
107    public String getEngineName() {
108        return nashornScriptEngineFactory.getEngineName();
109    }
110}