/*-- 

 Copyright (C) 2001 Brett McLaughlin.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions, and the following disclaimer.
 
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions, and the disclaimer that follows 
    these conditions in the documentation and/or other materials 
    provided with the distribution.

 3. The name "Java and XML" must not be used to endorse or promote products
    derived from this software without prior written permission.  For
    written permission, please contact brett@newInstance.com.
 
 In addition, we request (but do not require) that you include in the 
 end-user documentation provided with the redistribution and/or in the 
 software itself an acknowledgement equivalent to the following:
     "This product includes software developed for the
      'Java and XML' book, by Brett McLaughlin (O'Reilly & Associates)."

 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED.  IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGE.

 */
package javaxml2;

import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Calendar;
import java.util.Date;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;

import helma.xmlrpc.XmlRpc;
import helma.xmlrpc.XmlRpcClient;
import helma.xmlrpc.XmlRpcException;

/**
 * <b><code>SchedulerClient</code></b> is an XML-RPC client
 *   that makes XML-RPC requests to <code>Scheduler</code>.
 */
public class SchedulerClient {

    /**
     * <p>
     * Add events to the Scheduler.
     * </p>
     *
     * @param client <code>XmlRpcClient</code> to connect to
     */
    public static void addEvents(XmlRpcClient client) 
        throws XmlRpcException, IOException {
          
        System.out.println("\nAdding events...\n");          
          
        // Parameters for events
        Vector params = new Vector();
        
        // Add an event for next month
        params.addElement("Proofread final draft");
            
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.MONTH, 1);
        params.addElement(cal.getTime());
            
        // Add the event
        if (((Boolean)client.execute("scheduler.addEvent", params))
                            .booleanValue()) {
            System.out.println("Event added.");
        } else {
            System.out.println("Could not add event.");
        }        
            
        // Add an event for tomorrow
        params.clear();
        params.addElement("Submit final draft");
            
        cal = Calendar.getInstance();
        cal.add(Calendar.DAY_OF_MONTH, 1);
        params.addElement(cal.getTime());
        
        // Add the event
        if (((Boolean)client.execute("scheduler.addEvent", params))
                            .booleanValue()) {
            System.out.println("Event added.");
        } else {
            System.out.println("Could not add event.");
        }        
            
    }
    
    /**
     * <p>
     * List the events currently in the Scheduler.
     * </p>
     *
     * @param client <code>XmlRpcClient</code> to connect to
     */
    public static void listEvents(XmlRpcClient client) 
        throws XmlRpcException, IOException {  
          
        System.out.println("\nListing events...\n");                

        // Get the events in the scheduler
        Vector params = new Vector();
        Vector events = 
            (Vector)client.execute("scheduler.getListOfEvents", params);
        for (int i=0; i<events.size(); i++) {
            System.out.println((String)events.elementAt(i));
        }
    }
  
    /**
     * <p>
     * Static entry point for the demo.
     * </p>
     */
    public static void main(String args[]) {
        
        try {
            // Use the Apache Xerces SAX Parser Implementation
            XmlRpc.setDriver("org.apache.xerces.parsers.SAXParser");
          
            // Connect to server
            XmlRpcClient client = 
                new XmlRpcClient("http://localhost:8585/");                                         
              
            // Add some events
            addEvents(client);                        
            
            // List events
            listEvents(client);            
        
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
        
    }   
}