package at.gv.egovernment.moa.spss.server.service;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import at.gv.egovernment.moa.logging.LogMsg;
import at.gv.egovernment.moa.logging.Logger;
import at.gv.egovernment.moa.logging.LoggingContext;
import at.gv.egovernment.moa.logging.LoggingContextManager;
import at.gv.egovernment.moa.spss.server.config.ConfigurationProvider;
import at.gv.egovernment.moa.spss.server.iaik.config.IaikConfigurator;
import at.gv.egovernment.moa.spss.server.init.*;
import at.gv.egovernment.moa.spss.util.MessageProvider;
/**
* A servlet to initialize and update the MOA configuration.
*
* @author Fatemeh Philippi
* @author Patrick Peck
* @version $Id$
*/
public class ConfigurationServlet extends HttpServlet {
/** The document type of the HTML to generate. */
private static final String DOC_TYPE =
"\n";
/**
* Handle a HTTP GET request, used to indicated that the MOA
* configuration needs to be updated (reloaded).
*
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest, HttpServletResponse)
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
MessageProvider msg = MessageProvider.getInstance();
PrintWriter out;
// set up a logging context for logging the reconfiguration
LoggingContextManager.getInstance().setLoggingContext(
new LoggingContext("configuration update"));
response.setContentType("text/html");
out = response.getWriter();
out.println(DOC_TYPE);
out.println("MOA configuration update");
out.println("");
try {
// reconfigure the system
ConfigurationProvider config = ConfigurationProvider.reload();
IaikConfigurator iaikConfigurator = new IaikConfigurator();
iaikConfigurator.configure(config);
// print a status message
out.println("" + msg.getMessage("config.06", null) + "
");
Logger.info(new LogMsg(msg.getMessage("config.06", null)));
if (!config.getWarnings().isEmpty()) {
// print the warnings
List allWarnings = new ArrayList();
Iterator iter;
allWarnings.addAll(config.getWarnings());
allWarnings.addAll(iaikConfigurator.getWarnings());
out.println("" + msg.getMessage("config.29", null) + "
");
for (iter = allWarnings.iterator(); iter.hasNext();) {
out.println(iter.next() + "
");
}
out.println("" + msg.getMessage("config.28", null) + "
");
}
} catch (Throwable t) {
out.println("" + msg.getMessage("config.20", null) + "
");
out.println("" + msg.getMessage("config.28", null) + "
");
Logger.warn(new LogMsg(msg.getMessage("config.20", null)), t);
}
out.println("");
out.flush();
out.close();
// tear down the logging context
LoggingContextManager.getInstance().setLoggingContext(null);
}
/**
* Do the same as doGet.
*
* @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest, HttpServletResponse)
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
/**
* Perform some initial initialization tasks for the MOA web services
* application.
*
* Does an initial load of the MOA configuration to test if a working web
* service can be provided.
*
* @see javax.servlet.GenericServlet#init()
*/
public void init() throws ServletException {
SystemInitializer.init();
}
}