Hi Jon,
Where do I go to get the attached files?
Many Thanks
Simon
----- Original Message -----
From: "Jon Schuster" <[EMAIL PROTECTED]>
To: "'Lucene Users List'" <[EMAIL PROTECTED]>
Sent: Monday, August 23, 2004 6:25 PM
Subject: RE: Lucene Search Applet
> Hi all,
>
> The changes I made to get past the System.getProperty issues are
essentially
> the same in the three files org.apache.lucene.index.IndexWriter,
> org.apache.lucene.store.FSDirectory, and
> org.apache.lucene.search.BooleanQuery.
>
> Change the static initializations from a form like this:
>
> public static long WRITE_LOCK_TIMEOUT =
>
> Integer.parseInt(System.getProperty("org.apache.lucene.writeLockTimeout",
> "1000"));
>
> to a separate declaration and static initializer block like this:
>
> public static long WRITE_LOCK_TIMEOUT;
> static
> {
> try
> {
> WRITE_LOCK_TIMEOUT =
> Integer.parseInt(System.getProperty("org.apache.lucene.writeLockTimeout",
> "1000"));
> }
> catch ( Exception e )
> {
> WRITE_LOCK_TIMEOUT = 1000;
> }
> };
>
> As before, the variables are initialized when the class is loaded, but if
> the System.getProperty fails, the variable still gets initialized to its
> default value in the catch block.
>
> You can use a separate static block for each variable, or put them all
into
> a single static block. You could also add a setter for each variable if
you
> want the ability to set the value separately from the class init.
>
> In the FSDirectory class, the variables DISABLE_LOCKS and LOCK_DIR are
> marked final, which I had to remove to do the initialization as described.
>
> I've also attached the three modified files if you want to just copy and
> paste.
>
> --Jon
>
> -----Original Message-----
> From: Simon mcIlwaine [mailto:[EMAIL PROTECTED]
> Sent: Monday, August 23, 2004 7:37 AM
> To: Lucene Users List
> Subject: Re: Lucene Search Applet
>
> Hi,
>
> Just used the RODirectory and I'm now getting the following error:
> java.security.AccessControlException: access denied
> (java.util.PropertyPermission user.dir read) I'm reckoning that this is
what
> Jon was on about with System.getProperty() within certain files because im
> using an applet. Is this correct and if so can someone show me one of the
> hacked files so that I know what I need to modify.
>
> Many Thanks
>
> Simon
> .
> ----- Original Message -----
> From: "Simon mcIlwaine" <[EMAIL PROTECTED]>
> To: "Lucene Users List" <[EMAIL PROTECTED]>
> Sent: Monday, August 23, 2004 3:12 PM
> Subject: Re: Lucene Search Applet
>
> > Hi Stephane,
> >
> > A bit of a stupid question but how do you mean set the system property
> > disableLuceneLocks=true? Can I do it from a call from FSDirectory API or
> do
> > I have to actually hack the code? Also if I do use RODirectory how do I
go
> > about using it? Do I have to update the Lucene JAR archive file with
> > RODirectory class included as I tried using it and its not recognising
the
> > class?
> >
> > Many Thanks
> >
> > Simon
> >
> > ----- Original Message -----
> > From: "Stephane James Vaucher" <[EMAIL PROTECTED]>
> > To: "Lucene Users List" <[EMAIL PROTECTED]>
> > Sent: Monday, August 23, 2004 2:22 PM
> > Subject: Re: Lucene Search Applet
> >
> >
> > > Hi Simon,
> > >
> > > Does this work? From FSDirectory api:
> > >
> > > If the system property 'disableLuceneLocks' has the String value of
> > > "true", lock creation will be disabled.
> > >
> > > Otherwise, I think there was a Read-Only Directory hack:
> > >
> > >
http://www.mail-archive.com/[EMAIL PROTECTED]/msg05148.html
> > >
> > > HTH,
> > > sv
> > >
> > > On Mon, 23 Aug 2004, Simon mcIlwaine wrote:
> > >
> > > > Thanks Jon that works by putting the jar file in the archive
> attribute.
> > Now
> > > > im getting the disablelock error cause of the unsigned applet. Do I
> just
> > > > comment out the code anywhere where System.getProperty() appears in
> the
> > > > files that you specified and then update the JAR Archive?? Is it
> > possible
> > > > you could show me one of the hacked files so that I know what I'm
> > modifying?
> > > > Does anyone else know if there is another way of doing this without
> > having
> > > > to hack the source code?
> > > >
> > > > Many thanks.
> > > >
> > > > Simon
> > > >
> > > > ----- Original Message -----
> > > > From: "Jon Schuster" <[EMAIL PROTECTED]>
> > > > To: "Lucene Users List" <[EMAIL PROTECTED]>
> > > > Sent: Saturday, August 21, 2004 2:08 AM
> > > > Subject: Re: Lucene Search Applet
> > > >
> > > >
> > > > > I have Lucene working in an applet and I've seen this problem only
> > when
> > > > > the jar file really was not available (typo in the jar name),
which
> is
> > > > > what you'd expect. It's possible that the classpath for your
> > > > > application is not the same as the classpath for the applet;
perhaps
> > > > > they're using different VMs or JREs from different locations.
> > > > >
> > > > > Try referencing the Lucene jar file in the archive attribute of
the
> > > > > applet tag.
> > > > >
> > > > > Also, to get Lucene to work from an unsigned applet, I had to
modify
> a
> > > > > few classes that call System.getProperty(), because the properties
> > that
> > > > > were being requested were disallowed for applets. I think the
> classes
> > > > > were IndexWriter, FSDirectory, and BooleanQuery.
> > > > >
> > > > > --Jon
> > > > >
> > > > >
> > > > > On Aug 20, 2004, at 6:57 AM, Simon mcIlwaine wrote:
> > > > >
> > > > > > Im a new Lucene User and I'm not too familiar with Applets
either
> > but
> > > > > > I've
> > > > > > been doing a bit of testing on java applet security and if im
> > correct
> > > > > > in
> > > > > > saying that applets can read anything below there codebase then
my
> > > > > > problem
> > > > > > is not a security restriction one. The error is reading
> > > > > > java.lang.NoClassDefFoundError and the classpath is set as I
have
> it
> > > > > > working
> > > > > > in a Swing App. Does someone actually have Lucene working in an
> > > > > > Applet? Can
> > > > > > it be done?? Please help.
> > > > > >
> > > > > > Thanks
> > > > > >
> > > > > > Simon
> > > > > >
> > > > > > ----- Original Message -----
> > > > > >
> > > > > > From: "Terry Steichen" <[EMAIL PROTECTED]>
> > > > > > To: "Lucene Users List" <[EMAIL PROTECTED]>
> > > > > > Sent: Wednesday, August 18, 2004 4:17 PM
> > > > > > Subject: Re: Lucene Search Applet
> > > > > >
> > > > > >
> > > > > > I suspect it has to do with the security restrictions of the
> applet,
> > > > > > 'cause
> > > > > > it doesn't appear to be finding your Lucene jar file. Also,
> > regarding
> > > > > > the
> > > > > > lock files, I believe you can disable the locking stuff just for
> > > > > > purposes
> > > > > > like yours (read-only index).
> > > > > >
> > > > > > Regards,
> > > > > >
> > > > > > Terry
> > > > > > ----- Original Message -----
> > > > > > From: Simon mcIlwaine
> > > > > > To: Lucene Users List
> > > > > > Sent: Wednesday, August 18, 2004 11:03 AM
> > > > > > Subject: Lucene Search Applet
> > > > > >
> > > > > >
> > > > > > Im developing a Lucene CD-ROM based search which will search
> html
> > > > > > pages on
> > > > > > CD-ROM, using an applet as the UI. I know that theres a problem
> with
> > > > > > lock
> > > > > > files and also security restrictions on applets so I am using
the
> > > > > > RAMDirectory. I have it working in a Swing application however
> when
> > I
> > > > > > put it
> > > > > > into an applet its giving me problems. It compiles but when I go
> to
> > > > > > run the
> > > > > > applet I get the error below. Can anyone help? Thanks in
advance.
> > > > > > Simon
> > > > > >
> > > > > > Error:
> > > > > >
> > > > > > Java.lang.noClassDefFoundError:
> org/apache/lucene/store/Directory
> > > > > >
> > > > > > At: Java.lang.Class.getDeclaredConstructors0(Native Method)
> > > > > >
> > > > > > At:
> > Java.lang.Class.privateGetDeclaredConstructors(Class.java:1610)
> > > > > >
> > > > > > At: Java.lang.Class.getConstructor0(Class.java:1922)
> > > > > >
> > > > > > At: Java.lang.Class.newInstance0(Class.java:278)
> > > > > >
> > > > > > At: Java.lang.Class.newInstance(Class.java:261)
> > > > > >
> > > > > > At: sun.applet.AppletPanel.createApplet(AppletPanel.java:617)
> > > > > >
> > > > > > At: sun.applet.AppletPanel.runloader(AppletPanel.java:546)
> > > > > >
> > > > > > At: sun.applet.AppletPanel.run(AppletPanel.java:298)
> > > > > >
> > > > > > At: java.lang.Thread.run(Thread.java:534)
> > > > > >
> > > > > > Code:
> > > > > >
> > > > > > import org.apache.lucene.search.IndexSearcher;
> > > > > >
> > > > > > import org.apache.lucene.search.Query;
> > > > > >
> > > > > > import org.apache.lucene.search.TermQuery;
> > > > > >
> > > > > > import org.apache.lucene.store.RAMDirectory;
> > > > > >
> > > > > > import org.apache.lucene.store.Directory;
> > > > > >
> > > > > > import org.apache.lucene.index.Term;
> > > > > >
> > > > > > import org.apache.lucene.search.Hits;
> > > > > >
> > > > > > import java.awt.*;
> > > > > >
> > > > > > import java.awt.event.*;
> > > > > >
> > > > > > import javax.swing.*;
> > > > > >
> > > > > > import java.io.*;
> > > > > >
> > > > > > public class MemorialApp2 extends JApplet implements
> > ActionListener{
> > > > > >
> > > > > > JLabel prompt;
> > > > > >
> > > > > > JTextField input;
> > > > > >
> > > > > > JButton search;
> > > > > >
> > > > > > JPanel panel;
> > > > > >
> > > > > > String indexDir = "C:/Java/lucene/index-list";
> > > > > >
> > > > > > private static RAMDirectory idx;
> > > > > >
> > > > > > public void init(){
> > > > > >
> > > > > > Container cp = getContentPane();
> > > > > >
> > > > > > panel = new JPanel();
> > > > > >
> > > > > > panel.setLayout(new FlowLayout(FlowLayout.CENTER, 4, 4));
> > > > > >
> > > > > > prompt = new JLabel("Keyword search:");
> > > > > >
> > > > > > input = new JTextField("",20);
> > > > > >
> > > > > > search = new JButton("Search");
> > > > > >
> > > > > > search.addActionListener(this);
> > > > > >
> > > > > > panel.add(prompt);
> > > > > >
> > > > > > panel.add(input);
> > > > > >
> > > > > > panel.add(search);
> > > > > >
> > > > > > cp.add(panel);
> > > > > >
> > > > > > }
> > > > > >
> > > > > > public void actionPerformed(ActionEvent e){
> > > > > >
> > > > > > if (e.getSource() == search){
> > > > > >
> > > > > > String surname = (input.getText());
> > > > > >
> > > > > > try {
> > > > > >
> > > > > > findSurname(indexDir, surname);
> > > > > >
> > > > > > } catch(Exception ex) {
> > > > > >
> > > > > > System.err.println(ex);
> > > > > >
> > > > > > }
> > > > > >
> > > > > > }
> > > > > >
> > > > > > }
> > > > > >
> > > > > > public static void findSurname(String indexDir, String
surname)
> > > > > > throws
> > > > > > Exception{
> > > > > >
> > > > > > idx = new RAMDirectory(indexDir);
> > > > > >
> > > > > > IndexSearcher searcher = new IndexSearcher(idx);
> > > > > >
> > > > > > Query query = new TermQuery(new Term("surname", surname));
> > > > > >
> > > > > > Hits hits = searcher.search(query);
> > > > > >
> > > > > > for (int i = 0; i < hits.length(); i++) {
> > > > > >
> > > > > > //Document doc = hits.doc(i);
> > > > > >
> > > > > > System.out.println("Surname: " + hits.doc(i).get("surname"));
> > > > > >
> > > > > > }
> > > > > >
> > > > > > }
> > > > > >
> > > > > > }
> > > > > >
> > > > > >
> > > > > >
> > > > >
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