tablecontrolactionlistener.java

esri的ArcGIS Server超级学习模板程序（for java）

package com.esri.solutions.jitk.web.faces.component;

import com.esri.adf.web.data.results.ResultNode;

import com.esri.solutions.jitk.web.data.results.RenderControlledResults;
import com.esri.solutions.jitk.web.data.results.SortedResultsTableModel;
import com.esri.solutions.jitk.web.data.results.TableModel;
import com.esri.solutions.jitk.web.faces.event.TableEvent;

import org.apache.log4j.Logger;

import javax.faces.event.AbortProcessingException;
import javax.faces.event.ActionEvent;
import javax.faces.event.ActionListener;


public class TableControlActionListener implements ActionListener {
    private static Logger _logger = Logger.getLogger(TableControlActionListener.class);

    public void processAction(ActionEvent event)
        throws AbortProcessingException {
        TableControl tc = null;

        try {
            if ((event == null) || !(event instanceof TableEvent)) {
                return;
            }

            if (!(event.getSource() instanceof TableControl)) {
                _logger.warn("Invalid event source - aborting action");
                _logger.debug(
                    "Invalid event source - aborting action.  Event source is not of type " +
                    TableControl.class.getName());

                return;
            }

            Object data = ((TableEvent) event).getData();
            String action = ((TableEvent) event).getAction();
            tc = (TableControl) event.getSource();

            if (action != null) {
                if ((data != null) && data instanceof ResultNode) {
                    ((ResultNode) data).processAction(action);
                } else if (tc.getValue() instanceof SortedResultsTableModel &&
                        action.toLowerCase().equalsIgnoreCase("sort") &&
                        (data != null) && data instanceof String) {
                    SortedResultsTableModel tableModel = (SortedResultsTableModel) tc.getValue();
                    tableModel.setSortByColumnName((String) data);

                    //If results are render controlled, request rerender
                    if (tableModel instanceof RenderControlledResults) {
                        ((RenderControlledResults) tableModel).setShouldRender(true);
                    }
                } else {
                    TableModel tableModel = (TableModel) tc.getValue();

                    if ("next".equals(action.toLowerCase())) {
                        tableModel.setPageIndex(((TableModel) tc.getValue()).getPageIndex() +
                            1);
                    } else if ("previous".equals(action.toLowerCase())) {
                        tableModel.setPageIndex(((TableModel) tc.getValue()).getPageIndex() -
                            1);
                    } else if ("first".equals(action.toLowerCase())) {
                        tableModel.setPageIndex(0);
                    } else if ("last".equals(action.toLowerCase())) {
                        tableModel.setPageIndex(((TableModel) tc.getValue()).getPageCount() -
                            1);
                    } else {
                        try {
                            tableModel.setPageIndex(Integer.parseInt(action) -
                                1);
                        } catch (NumberFormatException e) {
                            _logger.error("Unexpected Action error in event handling phase",
                                e);
                        }
                    }

                    //If results are render controlled, request rerender
                    if (tableModel instanceof RenderControlledResults) {
                        ((RenderControlledResults) tableModel).setShouldRender(true);
                    }
                }
            }
        } catch (Exception ex) {
            _logger.error("Unexpected error in event handling phase", ex);
        }
    }
}