ru.codeinside.gses.webui.components.HistoricTaskInstancesQuery.java Source code

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Here is the source code for ru.codeinside.gses.webui.components.HistoricTaskInstancesQuery.java

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/*
 * 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) 2013, MPL CodeInside http://codeinside.ru
 */

package ru.codeinside.gses.webui.components;

import com.google.common.base.Function;
import com.google.common.collect.Lists;
import com.vaadin.data.Item;
import com.vaadin.data.util.ObjectProperty;
import com.vaadin.data.util.PropertysetItem;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;
import org.activiti.engine.HistoryService;
import org.activiti.engine.history.HistoricTaskInstance;
import ru.codeinside.adm.AdminServiceProvider;
import ru.codeinside.adm.database.Bid;
import ru.codeinside.gses.lazyquerycontainer.Query;
import ru.codeinside.gses.service.Functions;
import ru.codeinside.gses.webui.executor.ArchiveFactory;

import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

public class HistoricTaskInstancesQuery implements Query, Serializable {
    private static final long serialVersionUID = 1L;
    private String processDefinitionId;
    private String taskId;

    public HistoricTaskInstancesQuery(String processDefinitionId, String taskId) {
        this.processDefinitionId = processDefinitionId;
        this.taskId = taskId;
    }

    @Override
    public int size() {
        List<HistoricTaskInstance> histories = Functions
                .withHistory(new Function<HistoryService, List<HistoricTaskInstance>>() {
                    public List<HistoricTaskInstance> apply(HistoryService srv) {
                        return srv.createHistoricTaskInstanceQuery().processInstanceId(processDefinitionId).list();
                    }
                });
        return histories.size();
    }

    @Override
    public List<Item> loadItems(final int startIndex, final int count) {
        List<HistoricTaskInstance> histories = Functions
                .withHistory(new Function<HistoryService, List<HistoricTaskInstance>>() {
                    public List<HistoricTaskInstance> apply(HistoryService srv) {
                        return srv.createHistoricTaskInstanceQuery().processInstanceId(processDefinitionId)
                                .listPage(startIndex, count);
                    }
                });
        List<Item> items = Lists.newArrayListWithExpectedSize(histories.size());
        for (final HistoricTaskInstance i : histories) {
            String startTime = new SimpleDateFormat("dd.MM.yyyy HH:mm:ss").format(i.getStartTime());
            String endTime = (i.getEndTime() != null)
                    ? new SimpleDateFormat("dd.MM.yyyy HH:mm:ss").format(i.getEndTime())
                    : "";
            Bid bid = AdminServiceProvider.get().getBidByTask(taskId);
            String bidId = bid != null ? bid.getId().toString() : "";
            PropertysetItem item = new PropertysetItem();
            item.addItemProperty("id", new ObjectProperty<String>(bidId));
            item.addItemProperty("hid", new ObjectProperty<HistoricTaskInstance>(i));
            item.addItemProperty("name", new ObjectProperty<String>(i.getName()));
            item.addItemProperty("startDate", new ObjectProperty<String>(startTime));
            item.addItemProperty("endDate", new ObjectProperty<String>(endTime));
            item.addItemProperty("assignee",
                    new ObjectProperty<String>(i.getAssignee() != null ? i.getAssignee() : ""));
            Date time = i.getEndTime() == null ? i.getStartTime() : i.getEndTime();
            Button button = new Button("?",
                    new ArchiveFactory.ShowClickListener(i.getTaskDefinitionKey(), bidId, time));
            button.setEnabled(i.getAssignee() != null);
            item.addItemProperty("form", new ObjectProperty<Component>(button));
            items.add(item);
        }
        return items;
    }

    @Override
    public void saveItems(List<Item> addedItems, List<Item> modifiedItems, List<Item> removedItems) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean deleteAllItems() {
        return true;
        //    throw new UnsupportedOperationException();
    }

    @Override
    public Item constructItem() {
        throw new UnsupportedOperationException();
    }
}