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}).
032 *
033 * @since 7.3
034 */
035public class ScriptingCache implements ScriptEngineFactory {
036
037    protected final NashornScriptEngineFactory nashornScriptEngineFactory;
038
039    protected final boolean enabled;
040
041    public ScriptingCache(boolean enabled) {
042        this.nashornScriptEngineFactory = new NashornScriptEngineFactory();
043        this.enabled = enabled;
044    }
045
046    @Override
047    public ScriptEngine getScriptEngine() {
048        return enabled ? nashornScriptEngineFactory.getScriptEngine("-strict", "--persistent-code-cache",
049                "--class-cache-size=50") : nashornScriptEngineFactory.getScriptEngine();
050    }
051
052    @Override
053    public String getProgram(String... statements) {
054        return nashornScriptEngineFactory.getProgram(statements);
055    }
056
057    @Override
058    public Object getParameter(String key) {
059        return nashornScriptEngineFactory.getParameter(key);
060    }
061
062    @Override
063    public String getOutputStatement(String toDisplay) {
064        return nashornScriptEngineFactory.getOutputStatement(toDisplay);
065    }
066
067    @Override
068    public List<String> getNames() {
069        return nashornScriptEngineFactory.getNames();
070    }
071
072    @Override
073    public List<String> getMimeTypes() {
074        return nashornScriptEngineFactory.getMimeTypes();
075    }
076
077    @Override
078    public String getMethodCallSyntax(String obj, String method, String... args) {
079        return nashornScriptEngineFactory.getMethodCallSyntax(obj, method, args);
080    }
081
082    @Override
083    public String getLanguageVersion() {
084        return nashornScriptEngineFactory.getLanguageVersion();
085    }
086
087    @Override
088    public String getLanguageName() {
089        return nashornScriptEngineFactory.getLanguageName();
090    }
091
092    @Override
093    public List<String> getExtensions() {
094        return nashornScriptEngineFactory.getExtensions();
095    }
096
097    @Override
098    public String getEngineVersion() {
099        return nashornScriptEngineFactory.getEngineVersion();
100    }
101
102    @Override
103    public String getEngineName() {
104        return nashornScriptEngineFactory.getEngineName();
105    }
106}