TemplateLanguageTest.java

/***************************************************************************
   Copyright 2013 Emily Estes

   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.metanotion.simpletemplate.interpreter;


import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import net.metanotion.functor.Block;
import net.metanotion.scripting.ObjectServer;
import net.metanotion.scripting.ScriptingObjectMagic;
import net.metanotion.scripting.Scriptable;
import net.metanotion.simpletemplate.NullTemplateHelper;
import net.metanotion.web.RequestObject;
import net.metanotion.web.concrete.BasicRequestObject;

@Scriptable("''") public final class TemplateLanguageTest {
	private static final Logger logger = LoggerFactory.getLogger(TemplateLanguageTest.class);
	private static final ScriptingObjectMagic som;

	static {
		som = new ScriptingObjectMagic(TemplateLanguageTest.class);
	}
	/*	Argument 0: folder of templates to test.
		Argument 1: folder of results to compare to.
	*/
	public static void main(final String[] args) throws Exception {
		Load loader = new Load(new NullTemplateHelper());
		File in = new File(args[0]);
		File out = new File(args[1]);
		for(File template: in.listFiles()) {
			if(!template.isFile()) { continue; }
			logger.debug("Processing: " + template.getName());
			FileInputStream f = new FileInputStream(template);
			List<Element> pieces = loader.load(f, new ArrayList());
			List<Object> result = new LinkedList<Object>();
			RequestObject ro = new BasicRequestObject();
			ObjectServer os = som.instance(new TemplateLanguageTest());
			for(Element e: pieces) { 
				try {
					result.add(e.eval(os, ro)); 
				} catch (Exception ex) {
					result.add("ERROR: " + ex.getMessage());
					logger.debug("****************************************", ex);
				}
			}
			StringBuilder b = new StringBuilder();
			for(Object o: result) {
				if(o instanceof Iterable) {
					doList(b, (Iterable) o);
				} else {
					b.append(o.toString()); 
				}
			}
			logger.debug("output:" + b.toString() + ":");
			Reader r = new InputStreamReader(new FileInputStream(out.getPath() + File.separator + "out." + template.getName()));
			// compare results.
			r.close();
			f.close();
		}
	}

	private static void doList(StringBuilder b, Iterable i) {
		if(i instanceof LTuple) {
			b.append("("); 
		} else {
			b.append("[");
		}
		String c = "";
		for(Object e: i) {
			b.append(c);
			if(e instanceof Iterable) {
				doList(b, (Iterable) e); 
			} else {
				b.append(e.toString());
			}
			c = ", ";
		}
		if(i instanceof LTuple) {
			b.append(")"); 
		} else {
			b.append("]");
		}
	}

	public Object foo(Object x) { return x; }
	public Object bar(Object y) { return "bar"; }
	public Object baz() { return "baz"; }
	public Long add(long a, long b) { return a + b; }
	public List map(Block f, Iterable list) throws Exception {
		LinkedList out = new LinkedList();
		for(Object o: list) {
			logger.debug("*********** " + o.getClass());
			out.add(f.eval(o)); 
		}
		return out;
	}

	public Object reduce(Block f, Object i, Iterable list) throws Exception {
		for(Object o: list) { i = f.eval(Arrays.asList(i, o)); }
		return i;
	}
}