extensions/java/xpcom/tests/TestJavaProxy.java

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is Java XPCOM Bindings.
  15  *
  16  * The Initial Developer of the Original Code is IBM Corporation.
  17  * Portions created by the Initial Developer are Copyright (C) 2007
  18  * IBM Corporation. All Rights Reserved.
  19  *
  20  * Contributor(s):
  21  *   Javier Pedemonte (jhpedemonte@gmail.com)
  22  *
  23  * Alternatively, the contents of this file may be used under the terms of
  24  * either the GNU General Public License Version 2 or later (the "GPL"), or
  25  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  26  * in which case the provisions of the GPL or the LGPL are applicable instead
  27  * of those above. If you wish to allow use of your version of this file only
  28  * under the terms of either the GPL or the LGPL, and not to allow others to
  29  * use your version of this file under the terms of the MPL, indicate your
  30  * decision by deleting the provisions above and replace them with the notice
  31  * and other provisions required by the GPL or the LGPL. If you do not delete
  32  * the provisions above, a recipient may use your version of this file under
  33  * the terms of any one of the MPL, the GPL or the LGPL.
  34  *
  35  * ***** END LICENSE BLOCK ***** */
  36
  37 import java.io.File;
  38 import java.io.FileNotFoundException;
  39 import java.util.Properties;
  40
  41 import org.mozilla.xpcom.GREVersionRange;
  42 import org.mozilla.xpcom.Mozilla;
  43 import org.mozilla.interfaces.nsIFile;
  44 import org.mozilla.interfaces.nsILocalFile;
  45 import org.mozilla.interfaces.nsISimpleEnumerator;
  46 import org.mozilla.interfaces.nsISupports;
  47
  48
  49 /**
  50  * Tests that if calls to XPCOM functions return the same object, then
  51  * the JavaXPCOM interface creates the proper Java proxies.
  52  * <p>
  53  * The XPCOM call to <code>nsISupports supp = entries.getNext()</code> returns
  54  * an object, for which we create an <code>nsISupports</code> Java proxy.  Then,
  55  * the XPCOM call to <code>supp.queryInterface(nsIFile.NS_IFILE_IID)</code>
  56  * will return the same object (same address).  JavaXPCOM needs to be smart
  57  * enough to create a new <code>nsIFile</code> proxy, rather than reusing the
  58  * <code>nsISupports</code> one that was previously created.
  59  * </p>
  60  */
  61 public class TestJavaProxy {
  62         public static void main(String [] args) throws Exception {
  63     GREVersionRange[] range = new GREVersionRange[1];
  64     range[0] = new GREVersionRange("1.8", true, "1.9+", true);
  65     Properties props = null;
  66
  67     File grePath = null;
  68     try {
  69       grePath = Mozilla.getGREPathWithProperties(range, props);
  70     } catch (FileNotFoundException e) { }
  71
  72     if (grePath == null) {
  73       System.out.println("found no GRE PATH");
  74       return;
  75     }
  76     System.out.println("GRE PATH = " + grePath.getPath());
  77
  78     Mozilla Moz = Mozilla.getInstance();
  79     try {
  80       Moz.initXPCOM(grePath, null);
  81     } catch (IllegalArgumentException e) {
  82       System.out.println("no javaxpcom.jar found in given path");
  83       return;
  84     } catch (Throwable t) {
  85       System.out.println("initXPCOM failed");
  86       t.printStackTrace();
  87       return;
  88     }
  89     System.out.println("\n--> initialized\n");
  90
  91                 nsILocalFile directory = Moz.newLocalFile("/usr", false);
  92                 nsISimpleEnumerator entries = (nsISimpleEnumerator)
  93         directory.getDirectoryEntries();
  94                 while (entries.hasMoreElements()) {
  95                         nsISupports supp = entries.getNext();
  96                         nsIFile file = (nsIFile) supp.queryInterface(nsIFile.NS_IFILE_IID);
  97                         System.out.println(file.getPath());
  98                 }
  99
 100     // cleanup
 101     directory = null;
 102     entries = null;
 103
 104                 Moz.shutdownXPCOM(null);
 105         }
 106 }