BaseCtlSchemasGrid.java

/*
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.kaaproject.kaa.server.admin.client.mvp.view.schema;

import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.cellview.client.Column;
import com.google.gwt.user.cellview.client.DataGrid;
import com.google.gwt.user.cellview.client.Header;
import com.google.gwt.user.cellview.client.SafeHtmlHeader;

import org.kaaproject.avro.ui.gwt.client.widget.grid.cell.ActionsButtonCell;
import org.kaaproject.avro.ui.gwt.client.widget.grid.event.RowActionEvent;
import org.kaaproject.kaa.common.dto.BaseSchemaDto;
import org.kaaproject.kaa.server.admin.client.mvp.view.grid.AbstractKaaGrid;
import org.kaaproject.kaa.server.admin.client.mvp.view.grid.KaaRowAction;
import org.kaaproject.kaa.server.admin.client.util.Utils;

import java.util.Comparator;

public class BaseCtlSchemasGrid<T extends BaseSchemaDto> extends AbstractKaaGrid<T, String> {

  private static final int DEFAULT_PAGE_SIZE = 12;

  private Column<T, T> downloadSchemaColumn;

  public BaseCtlSchemasGrid() {
    super(Unit.PX, false, DEFAULT_PAGE_SIZE);
  }

  @Override
  protected float constructColumnsImpl(DataGrid<T> table) {
    float prefWidth = 0;

    prefWidth += constructStringColumn(table,
        Utils.constants.version(),
        new StringValueProvider<T>() {
          @Override
          public String getValue(T item) {
            return item.getVersion() + "";
          }
        },
        new Comparator<T>() {
          @Override
          public int compare(T o1, T o2) {
            return o1.compareTo(o2);
          }
        },
        Boolean.FALSE,
        80);

    prefWidth += constructStringColumn(table,
        Utils.constants.name(),
        new StringValueProvider<T>() {
          @Override
          public String getValue(T item) {
            return item.getName();
          }
        },
        new Comparator<T>() {
          @Override
          public int compare(T o1, T o2) {
            return o1.getName().compareToIgnoreCase(o2.getName());
          }
        },
        null,
        true,
        80);

    prefWidth += constructStringColumn(table,
        Utils.constants.author(),
        new StringValueProvider<T>() {
          @Override
          public String getValue(T item) {
            return item.getCreatedUsername();
          }
        }, 60);

    prefWidth += constructStringColumn(table,
        Utils.constants.dateCreated(),
        new StringValueProvider<T>() {
          @Override
          public String getValue(T item) {
            return Utils.millisecondsToDateString(item.getCreatedTime());
          }
        }, 40);
    return prefWidth;
  }

  @Override
  protected float constructActions(DataGrid<T> table, float prefWidth) {
    float result = 0;
    if (downloadSchemaColumn == null || table.getColumnIndex(downloadSchemaColumn) == -1) {
      Header<SafeHtml> downloadRecordSchemaHeader = new SafeHtmlHeader(
          SafeHtmlUtils.fromSafeConstant(Utils.constants.downloadRecordSchema()));
      downloadSchemaColumn = constructDownloadSchemaColumn();
      table.addColumn(downloadSchemaColumn, downloadRecordSchemaHeader);
      table.setColumnWidth(downloadSchemaColumn, 60, Unit.PX);
      result += 60;
    }
    return result;
  }

  protected Column<T, T> constructDownloadSchemaColumn() {
    ActionsButtonCell<T> cell = new ActionsButtonCell<>(
        Utils.resources.export(), Utils.constants.export());
    cell.addMenuItem(Utils.constants.shallow(), new ActionsButtonCell.ActionMenuItemListener<T>() {
      @Override
      public void onMenuItemSelected(T value) {
        RowActionEvent<String> schemaEvent =
            new RowActionEvent<>(value.getCtlSchemaId(), KaaRowAction.CTL_EXPORT_SHALLOW);
        fireEvent(schemaEvent);
      }
    });
    cell.addMenuItem(Utils.constants.deep(), new ActionsButtonCell.ActionMenuItemListener<T>() {
      @Override
      public void onMenuItemSelected(T value) {
        RowActionEvent<String> schemaEvent =
            new RowActionEvent<>(value.getCtlSchemaId(), KaaRowAction.CTL_EXPORT_DEEP);
        fireEvent(schemaEvent);
      }
    });
    cell.addMenuItem(Utils.constants.flat(), new ActionsButtonCell.ActionMenuItemListener<T>() {
      @Override
      public void onMenuItemSelected(T value) {
        RowActionEvent<String> schemaEvent =
            new RowActionEvent<>(value.getCtlSchemaId(), KaaRowAction.CTL_EXPORT_FLAT);
        fireEvent(schemaEvent);
      }
    });
    cell.addMenuItem(
        Utils.constants.javaLibrary(), new ActionsButtonCell.ActionMenuItemListener<T>() {
          @Override
          public void onMenuItemSelected(T value) {
            RowActionEvent<String> schemaEvent =
                new RowActionEvent<>(value.getCtlSchemaId(), KaaRowAction.CTL_EXPORT_LIBRARY);
            fireEvent(schemaEvent);
          }
        });

    Column<T, T> column = new Column<T, T>(cell) {
      @Override
      public T getValue(T item) {
        return item;
      }
    };
    return column;
  }

}