CertificatesView.java

/*
** Module   : CertificateView.java
** Abstract : CertificateView represents a view to manage certificates.
**
** Copyright (c) 2017, Golden Code Development Corporation.
**
** -#- -I- --Date-- ----------------Description----------------------
** 001 SBI 20170601 Created initial version.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
** 
** Additional terms under GNU Affero GPL version 3 section 7:
** 
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
** 
**   0. Attribution Requirement.
** 
**     You must preserve all legal notices or author attributions in the covered
**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
**     credit already included within the covered work.
** 
**   1. No License To Use Trademarks.
** 
**     This license does not grant any license or rights to use the trademarks
**     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
**     of Golden Code Development Corporation. You are not authorized to use the
**     name Golden Code, FWD, or the names of any author or contributor, for
**     publicity purposes without written authorization.
** 
**   2. No Misrepresentation of Affiliation.
** 
**     You may not represent yourself as Golden Code Development Corporation or FWD.
** 
**     You may not represent yourself for publicity purposes as associated with
**     Golden Code Development Corporation, FWD, or any author or contributor to
**     the covered work, without written authorization.
** 
**   3. No Misrepresentation of Source or Origin.
** 
**     You may not represent the covered work as solely your work.  All modified
**     versions of the covered work must be marked in a reasonable way to make it
**     clear that the modified work is not originating from Golden Code Development
**     Corporation or FWD.  All modified versions must contain the notices of
**     attribution required in this license.
*/

package com.goldencode.p2j.admin.client.application.home.accounts.certificates;

import java.util.Collection;
import java.util.Set;

import org.gwtbootstrap3.client.ui.Button;
import org.gwtbootstrap3.client.ui.CheckBox;
import org.gwtbootstrap3.client.ui.Heading;
import org.gwtbootstrap3.client.ui.gwt.DataGrid;

import com.goldencode.p2j.admin.TaggedName;
import com.goldencode.p2j.admin.client.application.home.BaseViewWithUiHandlers;
import com.goldencode.p2j.admin.client.application.home.accounts.CertificatesOptions;
import com.goldencode.p2j.admin.client.widget.EnumRadioGroup;
import com.goldencode.p2j.admin.client.widget.GridHandle;
import com.goldencode.p2j.admin.client.widget.GridHelper;
import com.goldencode.p2j.admin.client.widget.dialog.InputDialog;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.view.client.MultiSelectionModel;
import com.google.gwt.view.client.SelectionChangeEvent;
import com.google.gwt.user.client.ui.HasEnabled;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.google.inject.Provider;

/**
 * CertificateView represents a view to manage certificates.
 */
public class CertificatesView
extends BaseViewWithUiHandlers<CertificatesUIHandlers>
implements CertificatesPresenter.MyView
{
   /**
    * GWT UI creator
    */
   interface Binder
   extends UiBinder<Widget, CertificatesView>
   {}
   
   /** The certificate role selector widget */
   @UiField
   EnumRadioGroup<CertificatesOptions> certsSelector;
   
   /** The certificates table view */
   @UiField(provided = true)
   DataGrid<TaggedName> certsGrid = GridHelper.<TaggedName>create();
   
   /** The certificates grid handle */
   private final GridHandle<TaggedName> certsGridHandle;
   
   /** The certificates selection model */
   private final MultiSelectionModel<TaggedName> certsSelectionModel;
   
   /** The accounts table view */
   @UiField(provided = true)
   DataGrid<TaggedName> accountsGrid = GridHelper.<TaggedName>create();
   
   /** The accounts grid handle */
   private final GridHandle<TaggedName> accountsGridHandle;
   
   /** The accounts header widget */
   @UiField
   Heading accountsHeader;
   
   /** The refresh button */
   @UiField
   Button refreshCerts;
   
   /** Add certificate button */
   @UiField
   Button addCert;
   
   /** Delete certificate button*/
   @UiField
   Button deleteCerts;
   
   /** Change certificate alias button */
   @UiField
   Button changeAlias;
   
   /** View details certificate button */
   @UiField
   Button viewCert;
   
   /** The unused certificate checkbox */
   @UiField
   CheckBox unassignedOnly;
   
   /** modal container */
   @UiField
   HasWidgets modalFragment;
   
   /** The certificate definition view */
   private final CertificateDefinitionView certDefView;
   
   /** The common input dialog provider */
   private final Provider<InputDialog> inputDialogProvider;
   
   /** The certificate details view */
   private final CertificateDetailsView certDetailsView;
   
   /** The flag indicating that the select action has been invoked */
   private boolean requestToselect = false;
   
   /**
    * Constructs this view used by MPV gwtplatform of ArcBees Inc.
    * 
    * @param    binder
    *           GWT UI Binder
    * @param    inputDialogProvider
    *           The dialog provider
    * @param    certDefView
    *           The certificate definition view
    * @param    certDetailsView
    *           The certificate details view
    */
   @Inject
   public CertificatesView(Binder binder,
                           Provider<InputDialog> inputDialogProvider,
                           CertificateDefinitionView certDefView,
                           CertificateDetailsView certDetailsView)
   {
      initWidget(binder.createAndBindUi(this));
      setupModalSlot(CertificatesPresenter.MODAL_CONTENT, modalFragment);
      this.inputDialogProvider = inputDialogProvider;
      this.certDefView = certDefView;
      addDialog(certDefView);
      this.certDetailsView = certDetailsView;
      addDialog(certDetailsView);
      this.certsGridHandle = GridHelper.<TaggedName>initListGrid(
               certsGrid,
               true,
               new GridHelper.ColumnInfo<TaggedName>(
                        "Alias",
                        (tn) -> tn.getName(),
                        null),
               new GridHelper.ColumnInfo<TaggedName>(
                        "Description",
                        (tn) -> tn.getTag(),
                        null));
      this.certsSelectionModel =
               (MultiSelectionModel<TaggedName>) this.certsGridHandle.getSelectionModel();
      
      this.certsSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler()
      {
         @Override
         public void onSelectionChange(SelectionChangeEvent event)
         {
            Set<TaggedName> selected = CertificatesView.this.certsSelectionModel.getSelectedSet();
            if (!selected.isEmpty() && !requestToselect)
            {
               getUiHandlers().onCertsSelected(selected.toArray(new TaggedName[selected.size()]),
                        certsSelector.getValue(), unassignedOnly.getValue());
            }
         }
      });
      
      this.certsSelector.addValueChangeHandler(new ValueChangeHandler<CertificatesOptions>()
      {
         @Override
         public void onValueChange(ValueChangeEvent<CertificatesOptions> event)
         {
            logger.info("certsSelector changed " + event.getValue());
            getUiHandlers().certificatesOptionsChanged(event.getValue(),
                     unassignedOnly.getValue());
         }
      });
      
      this.unassignedOnly.addValueChangeHandler(new ValueChangeHandler<Boolean>()
      {
         @Override
         public void onValueChange(ValueChangeEvent<Boolean> event)
         {
            logger.info("unassignedOnly changed");
            getUiHandlers().certificatesOptionsChanged(certsSelector.getValue(), event.getValue());
         }
      });
      
      this.accountsGridHandle = GridHelper.<TaggedName>initListGrid(
               accountsGrid,
               false,
               new GridHelper.ColumnInfo<TaggedName>(
                        "Account",
                        (tn) -> tn.getName(),
                        null),
               new GridHelper.ColumnInfo<TaggedName>(
                        "Description",
                        (tn) -> tn.getTag(),
                        null));
      
   }
   
   /**
    * Returns the widgets that are managed by its view state machine.
    * 
    * @return   The widgets that are managed by its view state machine
    */
   @Override
   public HasEnabled[] get()
   {
      return new HasEnabled[]
               {
                  refreshCerts,
                  addCert,
                  deleteCerts,
                  changeAlias,
                  viewCert,
                  unassignedOnly
               };
   }

   /**
    * Changes accounts table header depending on the selected certificate role.
    * 
    * @param    option
    *           The selected certificate role
    */
   @Override
   public void toggleAccountsHeader(CertificatesOptions option)
   {
      if (CertificatesOptions.PEER == option)
      {
         CertificatesView.this.accountsHeader.setText("Associated Accounts");
      }
      else
      {
         CertificatesView.this.accountsHeader.setText("Certificate Hierarchy");
      }
      if (CertificatesView.this.certsSelector.getValue() != option)
      {
         CertificatesView.this.certsSelector.setValue(option, false);
      }
   }
   
   /**
    * Sets certificates
    * 
    * @param    certs
    *           The certificates data (model)
    */
   @Override
   public void setCerts(TaggedName[] certs)
   {
      this.certsGridHandle.clearGrid();
      if (certs != null)
      {
         this.certsGridHandle.addRows(certs);
         this.certsGridHandle.getDataProvider().flush();
      }
   }

   /**
    * The refresh button click handler.
    * 
    * @param    event
    *           Click event
    */
   @UiHandler("refreshCerts")
   public void onRefreshCerts(ClickEvent event)
   {
      getUiHandlers().onRefreshCertificatesList(certsSelector.getValue(),
               unassignedOnly.getValue());
   }
   
   /**
    * The add button click handler.
    * 
    * @param    event
    *           Click event
    */
   @UiHandler("addCert")
   public void onAddCert(ClickEvent event)
   {
      // trigger for auto opened "add certificate" dialog
      this.certDefView.setCertificateOption(certsSelector.getValue());
   }
   
   /**
    * The change button click handler.
    * 
    * @param    event
    *           Click event
    */
   @UiHandler("changeAlias")
   public void onChangeAlias(ClickEvent event)
   {
      TaggedName selectedCert = this.certsSelectionModel.getSelectedSet().toArray(
               new TaggedName[1])[0];
      InputDialog.Field fAlias;
      // trigger for auto opened "Change Alias" dialog
      InputDialog inputDialog = this.inputDialogProvider.get();
      inputDialog.build("Change Certificate Alias", "", new InputDialog.Field[]
      {
         fAlias = new InputDialog.Field("New Alias", selectedCert.getName(), false)
      });
      inputDialog.show(modalFragment, true, values ->
      {
         if (values != null)
         {
            String newAlias = (String) values.get(fAlias);
            TaggedName selected = certsSelectionModel.getSelectedSet().toArray(
                     new TaggedName[1])[0];
            getUiHandlers().changeAlias(selected, newAlias);
            logger.info("inputDialog -> " + newAlias);
         }
      });
   }
   
   /**
    * The view button click handler.
    * 
    * @param    event
    *           Click event
    */
   @UiHandler("viewCert")
   public void onViewCert(ClickEvent event)
   {
      // trigger for auto opened "view certificate" dialog
      Set<TaggedName> selected = CertificatesView.this.certsSelectionModel.getSelectedSet();
      getUiHandlers().viewCertificate(selected.toArray(new TaggedName[1])[0]);

   }
   
   /**
    * The delete button click handler.
    * 
    * @param    event
    *           Click event
    */
   @UiHandler("deleteCerts")
   public void onDeleteCerts(ClickEvent event)
   {
      // trigger "Delete certificate" dialog
      Set<TaggedName> selected = CertificatesView.this.certsSelectionModel.getSelectedSet();
      getUiHandlers().onDeleteSelectedCertificates(selected);
   }

   /**
    * Returns the certificate definition view.
    * 
    * @return   The certificate definition view
    */
   @Override
   public CertificateDefinitionView getCertificateDefinitionView()
   {
      return this.certDefView;
   }

   /**
    * Sets accounts
    * 
    * @param    accounts
    *           The accounts data (model)
    */
   @Override
   public void setAccounts(TaggedName[] accounts)
   {
      this.accountsGridHandle.clearGrid();
      if (accounts != null)
      {
         this.accountsGridHandle.addRows(accounts);
         this.accountsGridHandle.getDataProvider().flush();
      }
   }

   /**
    * Tests if this set of certificates is selected
    * 
    * @param    selected
    *           The set of certificates
    * 
    * @return   True iff theses certificates have been selected, otherwise false.
    */
   @Override
   public boolean isSelectedCertificates(Set<TaggedName> selected)
   {
      Set<TaggedName> selectedCerts = certsSelectionModel.getSelectedSet();
      return (selected != null) && selectedCerts.containsAll(selected) &&
               selected.containsAll(selectedCerts);
   }
   
   /**
    * Tests if this certificate is selected
    * 
    * @param    selected
    *           The target certificate
    * 
    * @return   True iff this target certificate has been selected, otherwise false.
    */
   @Override
   public boolean isSelectedCertificate(TaggedName selected)
   {
      Set<TaggedName> selectedCerts = certsSelectionModel.getSelectedSet();
      return (selected != null) && selectedCerts.contains(selected) &&
               (selectedCerts.size() == 1);
   }

   /**
    * Select the given certificate by its tagged name.
    * 
    * @param    cert
    *           The certificate tagged name.
    */
   @Override
   public void selectCertificate(TaggedName cert)
   {
      requestToselect = true;
      Scheduler.get().scheduleDeferred(new ScheduledCommand()
      {
         @Override
         public void execute()
         {
            certsSelectionModel.setSelected(cert, true);
            requestToselect = false;
         }
      });
   }

   /**
    * Returns the certificate details view.
    * 
    * @return   The certificate details view
    */
   @Override
   public CertificateDetailsView getCertificateDetailsView()
   {
      return this.certDetailsView;
   }

   /**
    * Select the given certificate by its alias.
    * 
    * @param    alias
    *           The certificate alias
    */
   @Override
   public void selectCertificate(String alias)
   {
      Predicate<TaggedName> searchFilter = record ->
      {
         if (record.getName().equals(alias))
         {
            return true;
         }

         return false;
      };

      Collection<TaggedName> results = Collections2.filter(
               certsGridHandle.getDataProvider().getList(), searchFilter);
      results.forEach(cert -> {
         selectCertificate(cert); logger.info("select certificate " + cert.getName()); });
   }
}