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A JavaScript unit test plugin that processes JavaScript sources and Jasmine specs, prepares test runner HTML files, executes Jasmine specs headlessly with HtmlUnit, and produces JUnit XML reports

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package com.github.searls.jasmine;

import java.io.File;
import java.io.IOException;

import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.DefaultHandler;
import org.eclipse.jetty.server.handler.HandlerList;
import org.eclipse.jetty.server.handler.ResourceHandler;
import org.eclipse.jetty.server.nio.SelectChannelConnector;

import com.github.searls.jasmine.io.RelativizesFilePaths;
import com.github.searls.jasmine.server.JasmineResourceHandler;

/**
 * @goal bdd
 * @execute lifecycle="jasmine-lifecycle" phase="generate-sources"
 * @requiresDirectInvocation true
 */
public class ServerMojo extends AbstractJasmineMojo {

	private Server server = new Server();
	
	private RelativizesFilePaths relativizesFilePaths = new RelativizesFilePaths();
	
	@Override
	public void run() throws Exception {
		addConnectorToServer();
        addHandlersToServer();
        startServer();
	}

	private void addConnectorToServer() {
		SelectChannelConnector connector = new SelectChannelConnector();
		connector.setPort(serverPort);
		server.addConnector(connector);
	}

	private void addHandlersToServer() throws IOException {
		ResourceHandler resourceHandler = createResourceHandler();

        HandlerList handlers = new HandlerList();
        handlers.setHandlers(new Handler[] { resourceHandler, new DefaultHandler() });
        server.setHandler(handlers);
	}

	private ResourceHandler createResourceHandler() throws IOException {
		ResourceHandler resourceHandler = new JasmineResourceHandler(this);
        resourceHandler.setDirectoriesListed(true);       
        resourceHandler.setWelcomeFiles(new String[]{ manualSpecRunnerPath() });
        resourceHandler.setResourceBase(mavenProject.getBasedir().getAbsolutePath());
		return resourceHandler;
	}
	
	private void startServer() throws Exception {
		server.start();
        getLog().info(buildServerInstructions());
		server.join();
	}

	private String buildServerInstructions() {
		return "\n\n" +
				"Server started--it's time to spec some JavaScript! You can run your specs as you develop by visiting this URL in a web browser: \n\n\t" +
				"http://localhost:"+serverPort+
				"\n\n" +
				"Just leave this process running as you test-drive your code, refreshing your browser window to re-run your specs. You can kill the server with Ctrl-C when you're done.";
	}

	private String manualSpecRunnerPath() throws IOException {
		return relativizesFilePaths.relativize(mavenProject.getBasedir(), jasmineTargetDir) + File.separator +manualSpecRunnerHtmlFileName;
	}

}