EditDocumentCloneServer.java

Go to the documentation of this file.

/*
 * Project: Server for annotations sharing
 * Author: Ing. Jaroslav Dytrych idytrych@fit.vutbr.cz
 * File: EditDocumentCloneServer.java
 * Description: Backbean for pages for adding, editing and deleting of document clonner approved servers
 */

/**
 * @file EditDocumentCloneServer.java
 *
 * @brief Backbean of pages for managing document clonner approved servers 
 */
package cz.vutbr.fit.knot.annotations.web;

import cz.vutbr.fit.knot.annotations.app.AppBean;
import cz.vutbr.fit.knot.annotations.app.Constants;
import cz.vutbr.fit.knot.annotations.documentCloner.DocClonerServer;
import java.io.Serializable;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;

/**
 * Backbean of pages for managing document clonner approved servers 
 *
 * @brief Backbean of pages for managing document clonner approved servers 
 * @author Martin Petr (xpetrm05)
 */
@ManagedBean
@ViewScoped
public class EditDocumentCloneServer implements Serializable {
  /** IP address of server */
  private String ipAddress;
  /** Variable holds database entity of cloner approved server */
  private DocClonerServer docClonerServer;
  /** Error message that be displayed in form */
  private String errorMessage;

  /**
   * Constructor
   */
  public EditDocumentCloneServer() {
  }

  /**
   * Gets IP address of approved server for document cloner
   *
   * @return Returns IP address of approved server
   */
  public String getIpAddress() {
    if(docClonerServer == null){
      docClonerServer = SessionManager.getSession().getActualClonerServer();
    }
    
    DocClonerServer backup = null;
    if (SessionManager.getSession().getFormBackup() != null) {
       if (SessionManager.getSession().getFormBackup().getClass().getName().endsWith("DocClonerServer")) {
         backup = (DocClonerServer) SessionManager.getSession().getFormBackup();
         if (backup.getId() != docClonerServer.getId()) {
          backup = null;
        }
       }
    }
    
    if(ipAddress == null && backup != null) {
      ipAddress = backup.getIpAddress();
    } else if(ipAddress == null && docClonerServer != null) {
      ipAddress = docClonerServer.getIpAddress();
    } else if(ipAddress == null) {
      ipAddress = "";
    }
    
    return ipAddress;
  }

  /**
   * Sets IP address of approved server for document cloner 
   *
   * @param ipAddress IP address of approved server
   */
  public void setIpAddress(String ipAddress) {
    this.ipAddress = ipAddress;
  }

  /**
   * Gets error message displayed in form
   *
   * @return Returns error message displayed in form
   */
  public String getErrorMessage() {
    return errorMessage;
  }

  /**
   * Sets error message to be displayed in form
   *
   * @param errorMessage Error message to be displayed in form
   */
  public void setErrorMessage(String errorMessage) {
    this.errorMessage = errorMessage;
  }
  
  /**
   * Action listener for save button in the page for editing of the cloner approved server
   *
   * @return Returns page outcome (identificator of next page or null to stay here)
   */
  public String btnNewAction() {
    if(ipAddress.isEmpty() || ipAddress == null){
      //error
      return null;
    }
    
    docClonerServer = new DocClonerServer();
    docClonerServer.setIpAddress(ipAddress);
    
    //persist new server ip
    if(AppBean.getPersistenceManager().persistEntity(docClonerServer)){
      errorMessage = MessageProvider.getMessage("CSAddDatabaseFailure");
      if (Constants.LOG_LEVEL >= Constants.LOG_LEVEL_SERVER_ERRORS) {
        String msg = "Persisting of new document cloner approved server failed.";
        Logger.getLogger(EditStoryScope.class.getName()).log(Level.SEVERE, msg);
      }
      return null;
    }
    
    SessionManager.getSession().setActualClonerServer(null);
    return "cancel";
  }
  
  /**
   * Action listener for save button on page for adding new cloner approved server
   *
   * @return Returns page outcome (identificator of next page or null to stay here)
   */
  public String btnEditAction() {
    if(ipAddress.isEmpty() || ipAddress == null){
     //error
     return null;
    }
    
    docClonerServer.setIpAddress(ipAddress);
    
    //change server ip
    DocClonerServer saved = (DocClonerServer) AppBean.getPersistenceManager().saveEntityChanges(docClonerServer);
    if (saved == null) {
      errorMessage = MessageProvider.getMessage("CSEditDatabaseFailure");
      if (Constants.LOG_LEVEL >= Constants.LOG_LEVEL_SERVER_ERRORS) {
        String msg = "Persisting of new document cloner approved server failed.";
        Logger.getLogger(EditStoryScope.class.getName()).log(Level.SEVERE, msg);
      }
      return null;
    } else {  // if changes was successfully saved
      docClonerServer = saved;
    }

    SessionManager.getSession().setActualClonerServer(null);
    return "cancel";
  }
  
  /**
   * Action listener for delete button on deleting page. 
   *
   * @return Returns page outcome (identificator of next page or null to stay here)
   */
  public String btnDeleteAction() {
    if(ipAddress.isEmpty() || ipAddress == null){
     //error
     return null;
    }
    
    if(AppBean.getPersistenceManager().removeEntity(docClonerServer)){
      errorMessage = MessageProvider.getMessage("CSDeleteDatabaseFailure");
      if (Constants.LOG_LEVEL >= Constants.LOG_LEVEL_SERVER_ERRORS) {
        String msg = "DB failure during deleting document cloner approved server.";
        Logger.getLogger(EditStoryScope.class.getName()).log(Level.SEVERE, msg);
      }
    }
    
    SessionManager.getSession().setActualClonerServer(null);
    return "cancel";
  }
  
  /**
   * Action listener for cancel button
   *
   * @return Returns page outcome
   */
  public String btnCancelAction() {
    SessionManager.getSession().setActualClonerServer(null);
    return "cancel";
  }
}