/*
Copyright 1999-2011 (c) My-Channels
Copyright (c) 2012-2014 Software AG, Darmstadt, Germany and/or Software AG USA Inc., Reston, VA, USA, and/or its subsidiaries and/or its affiliates and/or their licensors.

Use, reproduction, transfer, publication or disclosure is prohibited except as specifically provided for in your License Agreement with Software AG.
*/

package com.pcbsys.nirvana.apps;

import com.pcbsys.nirvana.client.*;

/**
 * Adds a remote realm to the local one
 */
public class addRealm extends nSampleApp {

	private static addRealm mySelf = null;

	/**
	 * This method demonstrates the Nirvana API calls necessary to add a realm
	 * It is called after all command line arguments have been received and
	 * validated
	 * 
	 * @param realmDetails
	 *            a String[] containing the possible RNAME values
	 * @param arealm
	 *            the  nRealm object to be added to the current realm
	 */
	private void doit(String[] realmDetails, nRealm arealm) {

		mySelf.constructSession(realmDetails);

		// Add the remote realm object to the local realm. The object contains
		// all the
		// necessary information for the 2 realms to start communicating.
		try {
			mySession.addRealm(arealm);
		} catch (nSessionPausedException pas) {
		} catch (nIllegalArgumentException ex) {
		}
		// Handle errors
		catch (nRealmNotFoundException rnfe) {
			System.out.println("The REALM specified is could not be located.");
			rnfe.printStackTrace();
			System.exit(1);
		} catch (nRealmAlreadyBoundException rabe) {
			System.out.println("The REALM specified is already bound.");
			rabe.printStackTrace();
			System.exit(1);
		} catch (nRealmUnreachableException rue) {
			System.out
					.println("The REALM specified by the RNAME value is not reachable.");
			System.out
					.println("Please ensure the realm is up and check your RNAME value.");
			rue.printStackTrace();
			System.exit(1);
		} catch (nSecurityException se) {
			System.out
					.println("Insufficient permissions for the requested operation.");
			System.out.println("Please check the ACL settings on the server.");
			se.printStackTrace();
			System.exit(1);
		} catch (nSessionNotConnectedException snce) {
			System.out
					.println("The session object used is not physically connected to the Nirvana realm.");
			System.out
					.println("Please ensure the realm is up and check your RNAME value.");
			snce.printStackTrace();
			System.exit(1);
		} catch (nUnexpectedResponseException ure) {
			System.out
					.println("The Nirvana REALM has returned an unexpected response.");
			System.out
					.println("Please ensure the Nirvana REALM and client API used are compatible.");
			ure.printStackTrace();
			System.exit(1);
		} catch (nRequestTimedOutException rtoe) {
			System.out
					.println("The requested operation has timed out waiting for a response from the REALM.");
			System.out
					.println("If this is a very busy REALM ask your administrator to increase the client timeout values.");
			rtoe.printStackTrace();
			System.exit(1);
		} catch (nNameSpaceConflictException nce) {
			System.out
					.println("The requested operation causes a conflict with the existing namespace.");
			System.out
					.println("Please ensure the REALM name and details are correct.");
			nce.printStackTrace();
			System.exit(1);
		}
		// Close the session we opened
		try {
			nSessionFactory.close(mySession);
		} catch (Exception ex) {
		}
		// Close any other sessions within this JVM so that we can exit
		nSessionFactory.shutdown();
	}

	protected void processArgs(String[] args) {
		switch (args.length) {
		case 3:
			System.getProperties().put("MOUNTPOINT", args[2]);
		case 2:
			System.getProperties().put("REALMDETAILS", args[1]);
		case 1:
			if (args[0].equals("-?")) {
				Usage();
				UsageEnv();
			}
			System.getProperties().put("REALMNAME", args[0]);
			break;
		}
	}

	public static void main(String[] args) {

		// Create an instance for this class
		mySelf = new addRealm();

		// Process command line arguments
		mySelf.processArgs(args);

		// Process Environment Variables
		nSampleApp.processEnvironmentVariables();

		// Check the remote realm name specified
		String realmName = null;
		if (System.getProperty("REALMNAME") != null)
			realmName = System.getProperty("REALMNAME");
		else {
			Usage();
			System.exit(1);
		}

		// Check the remote realm RNAME details specified
		String REALMDETAILS = null;
		if (System.getProperty("REALMDETAILS") != null)
			REALMDETAILS = System.getProperty("REALMDETAILS");
		else {
			Usage();
			System.exit(1);
		}

		// Check the remote realm mountpoint details specified
		String mountPnt = null;
		mountPnt = System.getProperty("MOUNTPOINT");

		// Check the local realm details
		String RNAME = null;
		if (System.getProperty("RNAME") != null)
			RNAME = System.getProperty("RNAME");
		else {
			Usage();
			System.exit(1);
		}

		// Process the local REALM RNAME details
		String[] rproperties = new String[4];
		rproperties = nSampleApp.parseRealmProperties(RNAME);

		try {
			// Create an instance of the Nirvana Realm object to be added
			nRealm nr = new nRealm(realmName, nSampleApp
					.parseRealmProperties(REALMDETAILS));
			// Set the mountpoint in the local realm's Namespace
			if (mountPnt != null) {
				if (mountPnt.trim().length() > 0) {
					nr.setMountPoint(mountPnt);
				}
			}
			// Add the remote realm to the local one
			mySelf.doit(rproperties, nr);
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}

	/**
	 * Prints the usage string for this class
	 */
	private static void Usage() {

		System.out.println("Usage ...\n");
		System.out
				.println("naddrealm <realm name> <realm details> [mount point] \n");

		System.out.println("<Required Arguments> \n");
		System.out
				.println("<realm name> - Realm name parameter for the realm to add");
		System.out
				.println("<realm details> - Realm details parameter for the realm to add. Same form as RNAME");
		System.out.println("\n[Optional Arguments] \n");
		System.out
				.println("[mount point] - Where you would like to mount the realm within the namespace, for example /eur/uk");
		System.out
				.println("\n\nNote: -? provides help on environment variables \n");
	}

} // End of addRealm Class