/*
* JEF - Copyright 2009-2010 Jiyi (mr.jiyi@gmail.com)
*
* 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 jef.script.javascript;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.script.ScriptEngine;
import jef.script.util.ScriptEngineFactoryBase;
/**
* Factory to create RhinoScriptEngine
*
* @version 1.0
* @author Mike Grogan
* @since 1.5
*/
public class RhinoScriptEngineFactory extends ScriptEngineFactoryBase {
public RhinoScriptEngineFactory() {
}
public List<String> getExtensions() {
return extensions;
}
public List<String> getMimeTypes() {
return mimeTypes;
}
public List<String> getNames() {
return names;
}
public Object getParameter(String key) {
if (key.equals(ScriptEngine.NAME)) {
return "javascript";
} else if (key.equals(ScriptEngine.ENGINE)) {
return "Mozilla Rhino";
} else if (key.equals(ScriptEngine.ENGINE_VERSION)) {
return "1.5";
} else if (key.equals(ScriptEngine.LANGUAGE)) {
return "ECMAScript";
} else if (key.equals(ScriptEngine.LANGUAGE_VERSION)) {
return "1.5";
} else if (key.equals("THREADING")) {
return "MULTITHREADED";
} else {
throw new IllegalArgumentException("Invalid key");
}
}
public ScriptEngine getScriptEngine() {
RhinoScriptEngine ret = new RhinoScriptEngine();
ret.setEngineFactory(this);
return ret;
}
public String getMethodCallSyntax(String obj, String method, String... args) {
String ret = obj + "." + method + "(";
int len = args.length;
if (len == 0) {
ret += ")";
return ret;
}
for (int i = 0; i < len; i++) {
ret += args[i];
if (i != len - 1) {
ret += ",";
} else {
ret += ")";
}
}
return ret;
}
public String getOutputStatement(String toDisplay) {
StringBuffer buf = new StringBuffer();
int len = toDisplay.length();
buf.append("print(\"");
for (int i = 0; i < len; i++) {
char ch = toDisplay.charAt(i);
switch (ch) {
case '"':
buf.append("\\\"");
break;
case '\\':
buf.append("\\\\");
break;
default:
buf.append(ch);
break;
}
}
buf.append("\")");
return buf.toString();
}
public String getProgram(String... statements) {
int len = statements.length;
String ret = "";
for (int i = 0; i < len; i++) {
ret += statements[i] + ";";
}
return ret;
}
public static void main(String[] args) {
RhinoScriptEngineFactory fact = new RhinoScriptEngineFactory();
System.out.println(fact.getParameter(ScriptEngine.ENGINE_VERSION));
}
private static List<String> names;
private static List<String> mimeTypes;
private static List<String> extensions;
static {
names = new ArrayList<String>(6);
names.add("js");
names.add("rhino");
names.add("JavaScript");
names.add("javascript");
names.add("ECMAScript");
names.add("ecmascript");
names = Collections.unmodifiableList(names);
mimeTypes = new ArrayList<String>(4);
mimeTypes.add("application/javascript");
mimeTypes.add("application/ecmascript");
mimeTypes.add("text/javascript");
mimeTypes.add("text/ecmascript");
mimeTypes = Collections.unmodifiableList(mimeTypes);
extensions = new ArrayList<String>(1);
extensions.add("js");
extensions = Collections.unmodifiableList(extensions);
}
}