ProcessHistoryWidget.java

package pl.net.bluesoft.rnd.processtool.ui.basewidgets;

import com.vaadin.data.util.BeanItemContainer;
import com.vaadin.ui.*;
import com.vaadin.ui.themes.Reindeer;
import pl.net.bluesoft.rnd.processtool.model.BpmTask;
import pl.net.bluesoft.rnd.processtool.model.ProcessInstance;
import pl.net.bluesoft.rnd.processtool.model.ProcessInstanceLog;
import pl.net.bluesoft.rnd.processtool.ui.widgets.ProcessToolDataWidget;
import pl.net.bluesoft.rnd.processtool.ui.widgets.ProcessToolVaadinRenderable;
import pl.net.bluesoft.rnd.processtool.ui.widgets.ProcessToolWidget;
import pl.net.bluesoft.rnd.processtool.ui.widgets.annotations.AliasName;
import pl.net.bluesoft.rnd.processtool.ui.widgets.annotations.AperteDoc;
import pl.net.bluesoft.rnd.processtool.ui.widgets.annotations.AutoWiredProperty;
import pl.net.bluesoft.rnd.processtool.ui.widgets.annotations.ChildrenAllowed;
import pl.net.bluesoft.rnd.processtool.ui.widgets.impl.BaseProcessToolVaadinWidget;
import pl.net.bluesoft.rnd.processtool.ui.widgets.impl.BaseProcessToolWidget;
import pl.net.bluesoft.util.lang.Strings;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import static pl.net.bluesoft.util.lang.Formats.nvl;
import static pl.net.bluesoft.util.lang.Strings.hasText;

/**
 * @author tlipski@bluesoft.net.pl
 */
@AliasName(name = "ProcessHistory")
@AperteDoc(humanNameKey="widget.process_history.name", descriptionKey="widget.process_history.description")
@ChildrenAllowed(false)
public class ProcessHistoryWidget extends BaseProcessToolVaadinWidget implements ProcessToolDataWidget, ProcessToolVaadinRenderable {

    @AutoWiredProperty(required = false)
    @AperteDoc(
            humanNameKey="widget.process_history.property.table.name",
            descriptionKey="widget.process_history.property.table.description"
    )
	private Boolean table;

	private List<ProcessLogInfo> logInfos = new ArrayList<ProcessLogInfo>();

	@Override
	public void addChild(ProcessToolWidget child) {
		throw new IllegalArgumentException("Not supported!");
	}

	@Override
	public Collection<String> validateData(BpmTask task, boolean skipRequired) {
		return null;
	}

	@Override
	public void saveData(BpmTask task) {
		//nothing
	}

	@Override
	public void loadData(BpmTask task) {
        ProcessInstance pi = task.getProcessInstance().getRootProcessInstance();
		List<ProcessInstanceLog> processLogs = new ArrayList(pi.getProcessLogs());
		Collections.sort(processLogs, ProcessInstanceLog.DEFAULT_COMPARATOR);
		for (ProcessInstanceLog pl : processLogs) {
			logInfos.add(getProcessLogInfo(pl));
		}
	}

    //TODO refactor & reuse common code with ProcessInstanceAdminManagerPane
    private ProcessLogInfo getProcessLogInfo(ProcessInstanceLog pl) {
        ProcessLogInfo plInfo = new ProcessLogInfo();
        String userDescription = pl.getUser() != null ? nvl(pl.getUser().getRealName(), pl.getUser().getLogin()) : "";
        if (pl.getUserSubstitute() != null) {
            String substituteDescription = nvl(pl.getUserSubstitute().getRealName(), pl.getUserSubstitute().getLogin());
            plInfo.userDescription = substituteDescription + "(" + getMessage("awf.basewidgets.process-history.substituting") + " " + userDescription  + ")";
        }
        else {
            plInfo.userDescription = userDescription;
        }
        plInfo.entryDescription = nvl(pl.getAdditionalInfo(), pl.getLogValue());
        plInfo.actionDescription = i18NSource.getMessage(pl.getEventI18NKey());
        if (hasText(plInfo.getEntryDescription())) {
            plInfo.actionDescription = plInfo.actionDescription + " - " + getMessage(plInfo.entryDescription);
        }
        plInfo.performDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(pl.getEntryDate().getTime());
        plInfo.stateDescription = pl.getState() != null ? nvl(pl.getState().getDescription(), pl.getState().getName()) : "";
        return plInfo;

	}

    public class ProcessLogInfo {
		public String userDescription;
		public String actionDescription;
		public String entryDescription;
		public String stateDescription;
		public String performDate;

		public String getUserDescription() {
			return userDescription;
		}

		public void setUserDescription(String userDescription) {
			this.userDescription = userDescription;
		}

		public String getActionDescription() {
			return actionDescription;
		}

		public void setActionDescription(String actionDescription) {
			this.actionDescription = actionDescription;
		}

		public String getEntryDescription() {
			return entryDescription;
		}

		public void setEntryDescription(String entryDescription) {
			this.entryDescription = entryDescription;
		}

		public String getStateDescription() {
			return stateDescription;
		}

		public void setStateDescription(String stateDescription) {
			this.stateDescription = stateDescription;
		}

		public String getPerformDate() {
			return performDate;
		}

		public void setPerformDate(String performDate) {
			this.performDate = performDate;
		}
	}

	@Override
	public Component render() {
		if (nvl(table, false)) {
			Table table = new Table();
			table.setWidth("100%");
			table.setHeight("180px");

			table.setImmediate(true); // react at once when something is selected
			table.setSelectable(true);
			table.addStyleName("components-inside");
			table.addStyleName("small");

			BeanItemContainer<ProcessLogInfo> bic = new BeanItemContainer<ProcessLogInfo>(ProcessLogInfo.class);
			bic.addAll(logInfos);
			table.setContainerDataSource(bic);
			Object[] cols = {
					"userDescription",
					"performDate",
					"stateDescription",
					"actionDescription"};
			table.setVisibleColumns(cols);

//			int[] widths = new int[]{100, 100, -1, -1, -1};

			for (Object o : table.getVisibleColumns()) {
				table.setColumnHeader(o, getMessage("awf.basewidgets.process-history." + o));
			}
//			for (int i = 0; i < widths.length; i++) {
//				table.setColumnWidth(cols[i], widths[i]);
//			}

			return table;
		} else {
			Panel p = new Panel();
			p.setStyleName(Reindeer.PANEL_LIGHT);
			p.setWidth("100%");
			p.setHeight("240px");

			VerticalLayout layout = (VerticalLayout) p.getContent();
//			layout.setMargin(true);
			layout.setSpacing(true);

			for (ProcessLogInfo pli : logInfos) {
				HorizontalLayout hl;
				hl = new HorizontalLayout();
                hl.addStyleName("history-item-header");
				hl.setSpacing(true);
	            hl.setWidth("100%");
				if (hasText(pli.getUserDescription()))
					hl.addComponent(label("<b class=\"header-author\">" + pli.getUserDescription() + "</b>", 150));
				else
					hl.addComponent(label("<b class=\"header-author\">System</b>", 150));

				hl.addComponent(label("<b class=\"header-time\">" + pli.getPerformDate() + "</b>", 150));
                if (Strings.hasText(pli.getStateDescription())) {
                    hl.addComponent(new Label("<b class=\"header-state\">" + getMessage("awf.basewidgets.process-history.stateDescription") + "</b>", Label.CONTENT_XHTML));
                    Label label = label(getMessage(pli.getStateDescription()), 350);
                    label.setStyleName("header-state");
					hl.addComponent(label);
                }
                Label spacer = new Label("");
                hl.addComponent(spacer);
                hl.setExpandRatio(spacer, 1);
				layout.addComponent(hl);
				hl = new HorizontalLayout();
                hl.addStyleName("history-item-body");
				hl.setSpacing(true);
	            hl.setWidth("100%");
				hl.setMargin(new Layout.MarginInfo(false, false, true, true));
				Label l = new Label(pli.getActionDescription(), Label.CONTENT_XHTML);
				l.setWidth("730px");
				hl.addComponent(l);
				layout.addComponent(hl);
			}
			return p;
		}
	}

	public static Label label(String message, int width) {
		Label l = new Label(message, Label.CONTENT_XHTML);
		l.setWidth(width +"px");
		return l;
	}

	public Boolean getTable() {
		return table;
	}

	public void setTable(Boolean table) {
		this.table = table;
	}

}