AbstractNoOpCompiler.java

package org.apache.sling.webresource.compiler.impl;

import java.io.InputStream;
import java.util.Map;

import javax.jcr.Node;
import javax.jcr.RepositoryException;
import org.apache.sling.webresource.exception.WebResourceCompileException;
import org.apache.sling.webresource.util.JCRUtils;

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

/**
 * 
 * Abstract NoOp class for processing JS and CSS files.
 * 
 * @author bpaulin
 * 
 */
public abstract class AbstractNoOpCompiler {
	private final Logger log = LoggerFactory.getLogger(getClass());

	/**
	 * 
	 * This should not be called on a CSS or JS file.
	 * 
	 * @param webResourceScript
	 * @return
	 * @throws WebResourceCompileException
	 */
	public InputStream compile(InputStream webResourceScript)
			throws WebResourceCompileException {
		return compile(webResourceScript, null);
	}

	/**
	 * 
	 * This should not be called on a CSS or JS file.
	 * 
	 * @param webResourceScript
	 * @param compileOptions
	 * @return
	 * @throws WebResourceCompileException
	 */
	public InputStream compile(InputStream webResourceScript,
			Map<String, Object> compileOptions)
			throws WebResourceCompileException {
		throw new WebResourceCompileException(
				"NoOp compile method should never be called");
	}

	public String getCacheRoot() {
		return "/";
	}

	public boolean canCompileNode(Node sourceNode) {
		String extension = null;
		try {

			extension = JCRUtils.getNodeExtension(sourceNode);

		} catch (RepositoryException e) {
			// Log Exception
			log.info("Node Name can not be read.  Skipping node.");
		}

		return compiledScriptExtension().equals(extension);
	}

	public abstract String compiledScriptExtension();
}