JangodEngineFactory.java

/**********************************************************************
Copyright (c) 2009 Asfun Net.

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 net.asfun.jangod.script;

import java.util.ArrayList;
import java.util.List;

import javax.script.Bindings;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.SimpleBindings;

import net.asfun.jangod.base.Constants;

public class JangodEngineFactory implements ScriptEngineFactory {

    protected Bindings globalBindings = new SimpleBindings();

    public void setGlobalBindings(Bindings bindings) {
	globalBindings = bindings;
    }

    @Override
    public String getEngineName() {
	return "ASFUN Jangod template engine";
    }

    @Override
    public String getEngineVersion() {
	return "0.28";
    }

    @Override
    public List<String> getExtensions() {
	List<String> ext = new ArrayList<String>();
	ext.add("god");
	ext.add("tpl");
	ext.add("html");
	ext.add("jangod");
	return ext;
    }

    @Override
    public String getLanguageName() {
	return "Jangod";
    }

    @Override
    public String getLanguageVersion() {
	return "1.0";
    }

    @Override
    public String getMethodCallSyntax(String obj, String m, String... args) {
	throw new UnsupportedOperationException();
    }

    @Override
    public List<String> getMimeTypes() {
	return new ArrayList<String>();
    }

    @Override
    public List<String> getNames() {
	List<String> names = new ArrayList<String>();
	names.add("Jangod");
	names.add("Django");
	names.add("Jinja");
	return names;
    }

    @Override
    public String getOutputStatement(String toDisplay) {
	throw new UnsupportedOperationException();
    }

    @Override
    public Object getParameter(String key) {
	if ("THREADING".equals(key))
	    return "THREAD-ISOLATED";
	else if (ScriptEngine.ENGINE.equals(key))
	    return getEngineName();
	else if (ScriptEngine.ENGINE_VERSION.equals(key))
	    return getEngineVersion();
	else if (ScriptEngine.NAME.equals(key))
	    return getEngineName();
	else if (ScriptEngine.LANGUAGE.equals(key))
	    return getLanguageName();
	else if (ScriptEngine.LANGUAGE_VERSION.equals(key))
	    return getLanguageVersion();
	else
	    return null;
    }

    @Override
    public String getProgram(String... statements) {
	StringBuilder buff = new StringBuilder();
	for (String statement : statements) {
	    buff.append(statement).append(Constants.STR_NEW_LINE);
	}
	return buff.toString();
    }

    @Override
    public ScriptEngine getScriptEngine() {
	return new JangodEngine(this);
    }

    @Override
    public String toString() {
	return getEngineName() + " v" + getEngineVersion();
    }

}