package ca.carleton.gcrc.couch.command;
import java.io.File;
import java.io.PrintStream;
import java.net.URL;
import java.util.Stack;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.rolling.RollingFileAppender;
import org.apache.log4j.rolling.TimeBasedRollingPolicy;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.DefaultServlet;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.eclipse.jetty.servlets.ProxyServlet;
import ca.carleton.gcrc.couch.command.impl.CommandSupport;
import ca.carleton.gcrc.couch.command.servlet.ConfigServlet;
import ca.carleton.gcrc.couch.export.ExportServlet;
import ca.carleton.gcrc.progress.ProgressServlet;
import ca.carleton.gcrc.upload.UploadServlet;
public class CommandRun implements Command {
@Override
public String getCommandString() {
return "run";
}
@Override
public boolean matchesKeyword(String keyword) {
if( getCommandString().equalsIgnoreCase(keyword) ) {
return true;
}
return false;
}
@Override
public boolean requiresAtlasDir() {
return true;
}
@Override
public void reportHelp(PrintStream ps) {
ps.println("Nunaliit2 Atlas Framework - Run Command");
ps.println();
ps.println("The run command starts a server which serves the atlas content");
ps.println("over the port specified during configuration. A user accesses");
ps.println("the atlas by pointing a web browser to this port.");
ps.println();
ps.println("Once the server is started, it can be stopped by pressing CTRL-C.");
ps.println();
ps.println("Command Syntax:");
ps.println(" nunaliit [<global-options>] run");
ps.println();
ps.println("Global Options");
CommandHelp.reportGlobalSettingAtlasDir(ps);
}
@Override
public void runCommand(
GlobalSettings gs
,Stack<String> argumentStack
) throws Exception {
File atlasDir = gs.getAtlasDir();
// Load properties for atlas
AtlasProperties atlasProperties = AtlasProperties.fromAtlasDir(atlasDir);
// Run command log4j configuration
{
Logger rootLogger = Logger.getRootLogger();
TimeBasedRollingPolicy rollingPolicy = new TimeBasedRollingPolicy();
File logDir = new File(gs.getAtlasDir(), "logs");
rollingPolicy.setFileNamePattern(logDir.getAbsolutePath()+"/nunaliit.%d.gz");
rollingPolicy.activateOptions();
RollingFileAppender fileAppender = new RollingFileAppender();
fileAppender.setRollingPolicy(rollingPolicy);
fileAppender.setTriggeringPolicy(rollingPolicy);
fileAppender.setLayout(new PatternLayout("%-5p [%t]: %m%n"));
fileAppender.activateOptions();
rootLogger.addAppender(fileAppender);
}
// Verify that connection to the database is available
CommandSupport.createCouchClient(gs, atlasProperties);
// Figure out URLs to CouchDb
URL serverUrl = null;
URL dbUrl = null;
URL siteRedirect = null;
{
serverUrl = atlasProperties.getCouchDbUrl();
String dbName = atlasProperties.getCouchDbName();
dbUrl = new URL(serverUrl,dbName);
siteRedirect = new URL(serverUrl,dbName+"/_design/site/_rewrite/");
}
// Figure out media directory
File mediaDir = new File(atlasDir, "media");
// Create server
Server server = new Server(atlasProperties.getServerPort());
ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
context.setContextPath("/");
server.setHandler(context);
// Proxy to server
{
ServletHolder servletHolder = new ServletHolder(new ProxyServlet.Transparent());
servletHolder.setInitParameter("ProxyTo", serverUrl.toExternalForm());
servletHolder.setInitParameter("Prefix", "/server");
context.addServlet(servletHolder,"/server/*");
}
// Proxy to database
{
ServletHolder servletHolder = new ServletHolder(new ProxyServlet.Transparent());
servletHolder.setInitParameter("ProxyTo", dbUrl.toExternalForm());
servletHolder.setInitParameter("Prefix", "/db");
context.addServlet(servletHolder,"/db/*");
}
// Proxy to media
{
ServletHolder servletHolder = new ServletHolder(new DefaultServlet());
servletHolder.setInitParameter("dirAllowed", "false");
servletHolder.setInitParameter("gzip", "true");
servletHolder.setInitParameter("pathInfoOnly", "true");
servletHolder.setInitParameter("resourceBase", mediaDir.getAbsolutePath());
context.addServlet(servletHolder,"/media/*");
}
// Servlet for configuration
{
ServletHolder servletHolder = new ServletHolder(new ConfigServlet());
servletHolder.setInitParameter("atlasDir", atlasDir.getAbsolutePath());
servletHolder.setInitParameter("installDir", gs.getInstallDir().getAbsolutePath());
servletHolder.setInitOrder(1);
context.addServlet(servletHolder,"/servlet/configuration/*");
}
// Servlet for upload
{
ServletHolder servletHolder = new ServletHolder(new UploadServlet());
servletHolder.setInitOrder(2);
context.addServlet(servletHolder,"/servlet/upload/*");
}
// Servlet for progress
{
ServletHolder servletHolder = new ServletHolder(new ProgressServlet());
servletHolder.setInitOrder(2);
context.addServlet(servletHolder,"/servlet/progress/*");
}
// Servlet for export
{
ServletHolder servletHolder = new ServletHolder(new ExportServlet());
servletHolder.setInitOrder(2);
context.addServlet(servletHolder,"/servlet/export/*");
}
// Proxy to site
{
ServletHolder servletHolder = new ServletHolder(new ProxyServlet.Transparent());
servletHolder.setInitParameter("ProxyTo", siteRedirect.toExternalForm());
servletHolder.setInitParameter("Prefix", "/");
context.addServlet(servletHolder,"/*");
}
// Start server
server.start();
server.join();
}
}