eventhelper.java

来自「dorado 展现中间件是一款企业级的商用AJAX平台软件」· Java 代码 · 共 72 行

package sample.skills.table.test;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import com.bstek.dorado.common.log.Log;
import com.bstek.dorado.utils.xml.XmlBuilder;
import com.bstek.dorado.utils.xml.XmlDocument;
import com.bstek.dorado.utils.xml.XmlFactory;
import com.bstek.dorado.utils.xml.XmlNode;
import com.bstek.dorado.utils.xml.XmlParseException;

public class EventHelper {
  public static final String SYS_EVENTS_KEY = "View.Events";
  private static Map controls = null;

  public static Map getControlEvents(String control) {
    Map controls = getAllControls();
    return (Map)controls.get(control);
  }

  public static Map getAllControls() {
    if (controls != null) {
      return controls;
    }
    else {
      controls = new HashMap();
      try {
        InputStream in = EventHelper.class.getClassLoader().getResourceAsStream(
            "com/bstek/dorado/view/events.xml");
        if (in != null) {
          try {
            XmlBuilder builder = XmlFactory.createXmlBuilder();
            XmlDocument doc = builder.buildDocument(in);
            XmlNode root = doc.getRootNode().getChild("eventSets");
            XmlNode[] controlNodes = root.getChildren();

            for (int i = 0; i < controlNodes.length; i++) {
              XmlNode controlNode = controlNodes[i];
              String controlName = controlNode.getAttribute("name");

              Map events = new HashMap();
              XmlNode[] eventNodes = controlNode.getChildren();
              for (int j = 0; j < eventNodes.length; j++) {
                String name = eventNodes[j].getAttribute("name");
                String parameters = eventNodes[j].getAttribute("parameters");
                events.put(name, parameters);
              }
              controls.put(controlName, events);
            }
          }
          finally {
            in.close();
          }
        }

      }
      catch (XmlParseException ex) {
        Log.error(ex);
      }
      catch (IOException ex) {
        Log.error(ex);
      }

      return controls;
    }
  }

}