manifesthtmldisplayer.java

OSGI这是一个中间件,与UPNP齐名,是用于移植到嵌入式平台之上

/*
 * Copyright (c) 2003, KNOPFLERFISH project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials
 *   provided with the distribution.
 *
 * - Neither the name of the KNOPFLERFISH project nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.knopflerfish.bundle.desktop.swing;

import org.osgi.framework.*;
import org.osgi.service.startlevel.*;

import javax.swing.table.*;
import javax.swing.*;
import javax.swing.event.*;

import java.awt.event.*;
import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.dnd.*;

import java.util.*;



public class ManifestHTMLDisplayer extends DefaultSwingBundleDisplayer {

  public ManifestHTMLDisplayer(BundleContext bc) {
    super(bc, "Manifest", "Shows bundle manifest", true); 
  }

  public JComponent newJComponent() {
    return new JHTML(this);
  }

  public void valueChanged(long  bid) {
    Bundle[] bl = Activator.desktop.getSelectedBundles();
    
    for(Iterator it = components.iterator(); it.hasNext(); ) {
      JHTML comp = (JHTML)it.next();
      comp.valueChanged(bl);
    }
  }

  class JHTML extends JHTMLBundle {
    JHTML(DefaultSwingBundleDisplayer displayer) {
      super(displayer);
    }

    public StringBuffer  bundleInfo(Bundle b) {
      StringBuffer sb = new StringBuffer();
      
      Dictionary headers = b.getHeaders();
      
      sb.append("<table border=0 cellspacing=1 cellpadding=0>\n");
      appendRow(sb, "Location", "" + b.getLocation());
      appendRow(sb, "State",    Util.stateName(b.getState()));
      
      StartLevel sls = (StartLevel)Activator.desktop.slTracker.getService();
      if(sls != null) {
	String level = "";
	try {
	  level = Integer.toString(sls.getBundleStartLevel(b));
	} catch (IllegalArgumentException e) {
	  level = "not managed";
	}
	appendRow(sb, "Start level", level);
      }
      
      for(Enumeration e = headers.keys(); e.hasMoreElements(); ) {
	String  key   = (String)e.nextElement();
	String  value = (String)headers.get(key);
	if(value != null && !"".equals(value)) {
          value = Strings.replace(value, "<", "&lt;");
          value = Strings.replace(value, ">", "&gt;");
	  if("Import-Package".equals(key) ||
	     "Export-Service".equals(key) ||
	     "Bundle-Classpath".equals(key) ||
	     "Classpath".equals(key) ||
	     "Import-Service".equals(key) ||
	     "Export-Package".equals(key)) {
	    value = Strings.replace(value, ",", "<br>");
	  } else {
	    if(value.startsWith("http:") ||
	       value.startsWith("https:") ||
	       value.startsWith("ftp:") ||
	       value.startsWith("file:")) {
	      value = "<a href=\"" + value + "\">" + value + "</a>";
	    }
	  }
	  appendRow(sb, key, value);
	}
      }
      
      sb.append("</table>");
      return sb;
    }    
  }
  
}