ru.codeinside.adm.ui.BusinessCalendar.java Source code

Introduction

Here is the source code for ru.codeinside.adm.ui.BusinessCalendar.java

Source

/*
 * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 * If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 * Copyright (c) 2014, MPL CodeInside http://codeinside.ru
 */

package ru.codeinside.adm.ui;

import com.vaadin.data.Property;
import com.vaadin.ui.Button;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Upload;
import com.vaadin.ui.VerticalLayout;
import org.apache.tika.mime.MimeTypes;
import ru.codeinside.adm.AdminServiceProvider;
import ru.codeinside.gses.activiti.Pair;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;

import static com.vaadin.ui.Window.Notification.TYPE_ERROR_MESSAGE;
import static com.vaadin.ui.Window.Notification.TYPE_TRAY_NOTIFICATION;

/**
 *  ? ? ?  ??
 */
public class BusinessCalendar extends VerticalLayout implements Upload.Receiver, Upload.SucceededListener {
    private final BusinessDatesTable datesTable;
    private ByteArrayOutputStream outputStream;
    private Button removeButton;

    public BusinessCalendar() {
        Upload upload = new Upload();
        upload.setImmediate(false);
        upload.setButtonCaption("  ");
        upload.setReceiver(this);
        upload.addListener(this);

        datesTable = new BusinessDatesTable();
        removeButton = createButton("");

        VerticalLayout vr = new VerticalLayout();
        vr.setSizeFull();
        vr.setSpacing(true);
        vr.setMargin(true);

        HorizontalLayout horLayout = new HorizontalLayout();
        horLayout.setSizeFull();
        horLayout.setSpacing(true);
        horLayout.setMargin(true);
        horLayout.addComponent(upload);
        horLayout.addComponent(removeButton);
        vr.addComponent(horLayout);
        vr.addComponent(datesTable);

        addComponent(vr);
        vr.setExpandRatio(horLayout, .1f);
        vr.setExpandRatio(datesTable, .9f);
        datesTable.addListener(new Property.ValueChangeListener() {
            @Override
            public void valueChange(Property.ValueChangeEvent event) {
                removeButton.setVisible(event.getProperty().getValue() != null);
            }
        });
        setSizeFull();
    }

    private Button createButton(String buttonCaption) {
        final Button button = new Button(buttonCaption, new Button.ClickListener() {
            @Override
            public void buttonClick(Button.ClickEvent event) {
                datesTable.deleteBusinessCalendarItem();
            }
        });
        button.setVisible(false);
        return button;
    }

    @Override
    public OutputStream receiveUpload(String filename, String mimeType) {
        this.outputStream = new ByteArrayOutputStream();
        return outputStream;
    }

    @Override
    public void uploadSucceeded(Upload.SucceededEvent event) {
        byte[] buffer = outputStream.toByteArray();
        boolean isPlainText = MimeTypes.PLAIN_TEXT.equals(new MimeTypes().getMimeType(buffer).getName());
        if (isPlainText) {
            loadBusinessCalendarData(new ByteArrayInputStream(buffer));
        } else {
            getWindow().showNotification(" ",
                    "? ?  .",
                    TYPE_ERROR_MESSAGE);
        }
    }

    private void loadBusinessCalendarData(ByteArrayInputStream stream) {
        try {
            Pair<Integer, Integer> count = AdminServiceProvider.get().importBusinessCalendar(stream);
            datesTable.refresh();
            getWindow().showNotification(" ?",
                    " ?: " + count.get_1() + ", ?: " + count.get_2(),
                    TYPE_TRAY_NOTIFICATION);
        } catch (Exception e) {
            Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, e.getMessage(), e);
            getWindow().showNotification(" ",
                    "       "
                            + e.getMessage(),
                    TYPE_ERROR_MESSAGE);
        }
        //      ...
    }
}