/* File Name: CrossXClientFactory.java */

package explorer.client;

import java.io.*;
import java.rmi.*;
import java.net.*;
import explorer.*;
import java.util.*;
import explorer.server.*;
import java.rmi.registry.*;


    /**
     * Use to get the Client Systems List from the Server and to have the list
     * of the remote clients associated with it.
     * Looks up the remote object of the destination client system to copy,
     * move or delete files.
     */

public class CrossXClientFactory {
    private ClientRegister clientregister;
    private Vector clientSystemList;
    private Vector clientAcceptors;
    static int serverport;
    public static int clientport;
    static String hostname;
    public static boolean blnEnd=false;

    /**
     * Initialize the Server host name,Portnumber from the client.properties file.
     */
    private static ResourceBundle resources;

    static {
        try {
            resources = ResourceBundle.getBundle("resources.client",
            Locale.getDefault());
            hostname=resources.getString("explorer.server.hostname");
            serverport=Integer.parseInt(resources.getString("explorer.server.port"));
            clientport=Integer.parseInt(resources.getString("explorer.client.port"));
        }
        catch (MissingResourceException mre) {
            System.err.println("resources/client.properties not found");
            System.exit(1);
        }
    }

    /**
     * Constructor for CrossXClientFactory. Init the vector Object.
     */
    public CrossXClientFactory()  {
        clientSystemList=new Vector(0);
        clientAcceptors=new Vector(0);
        lookUpServer();
    }
    public void lookUpServer() {
        try {
            String uri="rmi://" + hostname + ":"+ serverport + "/ClientRegister";
            clientregister=(ClientRegister)Naming.lookup(uri);
        }
        catch(Exception e) {
            clientregister=null;
            e.printStackTrace();
            System.out.println("Server is not ready!");
            System.exit(0);
        }
    }
    /**
     * gets the SystemList from the server
     */
    public Vector getSystemList() throws RemoteException {
        clientSystemList=clientregister.refershSystemList();
        for(int i=0;i<clientSystemList.size();i++) {
            CrossXClient clientobj=(CrossXClient) clientSystemList.get(i);
            try {
                String uri="rmi://" + clientobj.getIPAddress().getHostAddress() + ":" +
                clientobj.getPort() + "/ClientAcceptor";
                ClientAcceptor clientacceptor=(ClientAcceptor)Naming.lookup(uri);
                clientAcceptors.add(clientacceptor);
            }
            catch(RemoteException e) {
                e.printStackTrace();
            }
            catch(Exception e) {
                e.printStackTrace();
            }
        }
        return clientSystemList;
    }

    /**
     * Check the Authentication of the clientSystem.
     */
    public boolean checkAuthenticate(String username,String pass,String IP) {
        try {
            return clientregister.checkAuthentication(username,pass,IP);
        }
        catch(RemoteException e) {
            e.printStackTrace();
            return false;
        }
        catch(Exception e) {
            e.printStackTrace();
            return false;
        }
    }
    /**
     * To get the Root fileSystem of the particular client.
     * It returns the array of FileSystemDAO Objects.
     */
    public FileSystemDAO[] getRootFiles(CrossXClient client) {
        ClientAcceptor clientacceptor=null;
        try {
            for(int i=0;i<clientSystemList.size();i++) {
                if(client.equalNode((CrossXClient)clientSystemList.get(i))) {
                    clientacceptor=(ClientAcceptor)clientAcceptors.get(i);
                    break;
                }
            }
            String str=clientacceptor.getRoots();
            FileSystemFactory FSFactory=new FileSystemFactory();
            return FSFactory.getDAOObjects(str);
        }
        catch(Exception e) {
            e.printStackTrace();
            return null;
        }
    }
    /**
     * To get the File objects in a  particular Path.
     * It returns the array of FileSystemDAO Objects.
     */
    public FileSystemDAO[] getFiles(CrossXClient client,String path) {
        ClientAcceptor clientacceptor=null;
        try {
            for(int i=0;i<clientSystemList.size();i++) {
                if(client.equalNode((CrossXClient)clientSystemList.get(i))) {
                    clientacceptor=(ClientAcceptor)clientAcceptors.get(i);
                    break;
                }
            }
            String str=clientacceptor.listFiles(path);
            if(str==null) return null;
            FileSystemFactory FSFactory=new FileSystemFactory();
            return FSFactory.getDAOObjects(str);
        }
        catch(RemoteException e) {
            e.printStackTrace();
            return null;
        }
        catch(Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * Used to get only the "Files" in a  particular Path
     * Checks if the file object is a file and then proceeds
     * It returns the array of FileSystemDAO Objects.
     */
    public FileSystemDAO[] getFilesOnly(CrossXClient client,String path) {
        FileSystemDAO[] DAOs=getFiles(client,path);
        int count=0,len=0,i;
        if(DAOs==null) return null;
        for(i=0;i<DAOs.length;i++)
            if(DAOs[i].isFile()) count++;
        FileSystemDAO[] filesonly=new FileSystemDAO[count];
        for(i=0;i<DAOs.length;i++) {
            if(DAOs[i].isFile()) {
                filesonly[len]=DAOs[i];
                len++;
            }
        }
        return filesonly;
    }

    /**
     * Used to get only the "Directories" in a  particular Path
     * Checks if the file object is a directory and then proceeds
     * It returns the array of FileSystemDAO Objects.
     */
    public FileSystemDAO[] getDirectoriesOnly(CrossXClient client,String path) {
        FileSystemDAO[] DAOs=getFiles(client,path);
        int count=0,len=0,i;
        if(DAOs==null) return null;
        for(i=0;i<DAOs.length;i++)
            if(DAOs[i].isDirectory()) count++;
        FileSystemDAO[] directoryonly=new FileSystemDAO[count];
        for(i=0;i<DAOs.length;i++) {
            if(DAOs[i].isDirectory()) {
                directoryonly[len]=DAOs[i];
                len++;
            }
        }
        return directoryonly;
    }

    /**
     * Used to lookup to the destination client while copying a file
     */
    public boolean copyFileTo(final CrossXClient destinationClient, final String destinationFile,
    final CrossXClient srcClient, final String srcfile) {
        Thread r = new Thread(new Runnable() {
            public void run() {
                try {
                    String uri="rmi://" + srcClient.getIPAddress().getHostAddress() + ":"
                    + srcClient.getPort() + "/FILE_HANDLER";
                    FileHandle handler = (FileHandle)Naming.lookup(uri);
                    CrossXClientFactory.blnEnd = false;
                    handler.copyFileTo(destinationClient, destinationFile, srcfile);
                    CrossXClientFactory.blnEnd = true;
                }
                catch(RemoteException e) {
                    e.printStackTrace();
                }
                catch(Exception e) {
                    e.printStackTrace();
                }
            }
        });
        r.start();

        return true;
    }
     /**
     * Used to lookup to the destination client while moving a file
     */
    public boolean moveFileTo(final CrossXClient destinationClient, final String destinationFile,
    final CrossXClient srcClient, final String srcfile) {
        Thread r = new Thread(new Runnable() {
            public void run() {
                try {
                    //   CrossXClient clientobj = new CrossXClient(destination,
                    //               InetAddress.getByName(destination),
                    //              CrossXClientFactory.clientport);

                    String uri="rmi://" + srcClient.getIPAddress().getHostAddress() + ":"
                    + srcClient.getPort() + "/FILE_HANDLER";
                    CrossXClientFactory.blnEnd = false;
                    FileHandle handler = (FileHandle)Naming.lookup(uri);
                    handler.moveFileTo(destinationClient, destinationFile, srcfile);
                    CrossXClientFactory.blnEnd = true;
                }
                catch(RemoteException e) {
                    e.printStackTrace();
                }
                catch(Exception e) {
                    e.printStackTrace();
                }
            }
        });
        r.start();


        return true;
    }
    /**
     * Used to lookup to the destination client while Setting properties
     * of a file
     */
    public boolean setProperties(CrossXClient client, FileSystemDAO fileInfo,
    String name) {
        try {
            String uri="rmi://" + client.getIPAddress().getHostAddress() + ":"
            + client.getPort() + "/FILE_HANDLER";
            FileHandle handler = (FileHandle)Naming.lookup(uri);

            if(fileInfo.isReadOnly()) {
                if(handler.setReadOnly(fileInfo.getFilePath())) {
                    return false;
                }
            }

            if(!fileInfo.getFileName().equals(name)) {
                if(handler.renameFile(fileInfo.getFilePath(), name)) {
                    return true;
                }
            }
            return false;
        }
        catch(RemoteException e) {
            e.printStackTrace();
        }
        catch(Exception e) {
            e.printStackTrace();
        }

        return true;
    }

     /**
     * Used to lookup to the destination client while deleting a file
     */
    public boolean deleteFile(CrossXClient clientobj, String destinationFile) {
        try {
            String uri="rmi://" + clientobj.getIPAddress().getHostAddress() + ":"
            + clientobj.getPort() + "/FILE_HANDLER";
            FileHandle handler = (FileHandle)Naming.lookup(uri);
            handler.deleteFile(destinationFile);
        }
        catch(RemoteException e) {
            e.printStackTrace();
        }
        catch(Exception e) {
            e.printStackTrace();
        }

        return true;
    }
}<!--'"</title></head>-->

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