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Re: Scanning classes with VFS
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created by <a href="http://community.jboss.org/people/grossetieg">Guillaume Grossetie</a> in <i>JBoss Microcontainer Development POJO Server</i> - <a href="http://community.jboss.org/message/561308#561308">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>Thanks for the quick reply. I'm running <span>JBoss</span> 6.0.0.M3.</span></p><p>I will migrate to JBoss 6.0.0.M4 today to try the new scanning lib. I tried debugging :</p><pre class="jive-pre"><code class="jive-code jive-java" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: transparent; border-collapse: collapse; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; font-size: 1em; list-style-type: none; list-style-position: initial; list-style-image: initial; outline-width: 0px; outline-style: initial; outline-color: initial; background-position: initial initial; background-repeat: initial initial; padding: 0px; margin: 0px; border: 0px initial initial;"><span>URL resource = <span>cld</span>.<span>getResource</span>(<span>pkgPath</span>);</span></code></pre><p>With <em style="font-style: italic;"><span><span>pkgPath</span> = <span>mypackage</span>.etc.enumeration.action</span></em>, give me URL :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span><span>vfs</span>:/home/<span>g</span>.<span>grossetie</span>/business/profiles/<span>jboss</span>-6.0.0.20100429-m3/server/default/deploy/deploy/1-calliope.ear/lib/framework-<span>ejbimpl</span>-2.0-SNAPSHOT-common.jar/<span>mypackage</span>/etc/enumeration/action/</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>I guess that my <span>VirtualFile</span> is created correctly. Then when I call :</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">file.getChildrenRecursively()
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">    <font color="darkgreen">/**
     * Get all the children recursively<p>
     * <p/>
     * This always uses {@link VisitorAttributes#RECURSE}
     *
     * @return the children
     *
     * @throws IOException for any problem accessing the virtual file system
     * @throws IllegalStateException if the file is closed
     */</font>
    <font color="navy"><b>public</b></font> List<VirtualFile> getChildrenRecursively() <font color="navy"><b>throws</b></font> IOException <font color="navy">{</font>
        <font color="navy"><b>return</b></font> getChildrenRecursively(<font color="navy"><b>null</b></font>);
    <font color="navy">}</font>
 
    <font color="darkgreen">/**
     * Get all the children recursively<p>
     * <p/>
     * This always uses {@link VisitorAttributes#RECURSE}
     *
     * @param filter to filter the children
     *
     * @return the children
     *
     * @throws IOException for any problem accessing the virtual file system
     * @throws IllegalStateException if the file is closed or it is a leaf node
     */</font>
    <font color="navy"><b>public</b></font> List<VirtualFile> getChildrenRecursively(VirtualFileFilter filter) <font color="navy"><b>throws</b></font> IOException <font color="navy">{</font>
        <font color="navy"><b>if</b></font> (!isDirectory())
            <font color="navy"><b>return</b></font> Collections.emptyList();
        <font color="navy"><b>if</b></font> (filter == <font color="navy"><b>null</b></font>)
            filter = MatchAllVirtualFileFilter.INSTANCE;
        FilterVirtualFileVisitor visitor = <font color="navy"><b>new</b></font> FilterVirtualFileVisitor(filter, VisitorAttributes.RECURSE);
        visit(visitor);
        <font color="navy"><b>return</b></font> visitor.getMatched();
    <font color="navy">}</font>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>the method return <span style="font-family: monospace; white-space: pre; "><span>Collections.<span>emptyList</span>();</span></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"> <font color="navy"><b>if</b></font> (!isDirectory())
            <font color="navy"><b>return</b></font> Collections.emptyList();
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So I can't interact with my classes because my package isn't a directory ?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Guillaume.</p><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">/**</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * Get all the children recursively<<span>p</span>></span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     * <p/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * This always uses {@link <span>VisitorAttributes</span>#<span>RECURSE</span>}</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     *</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     * @return the children</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     *</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * @throws <span>IOException</span> for any problem accessing the virtual file system</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     * @throws IllegalStateException if the file is closed</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     */</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>    public List<<span>VirtualFile</span>> <span>getChildrenRecursively</span>() throws <span>IOException</span> {</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">        return getChildrenRecursively(null);</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">    }</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"> </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">    /**</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * Get all the children recursively<<span>p</span>></span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     * <p/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * This always uses {@link <span>VisitorAttributes</span>#<span>RECURSE</span>}</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     *</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * @<span>param</span> filter to filter the children</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     *</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     * @return the children</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     *</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>     * @throws <span>IOException</span> for any problem accessing the virtual file system</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     * @throws IllegalStateException if the file is closed or it is a leaf node</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">     */</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>    public List<<span>VirtualFile</span>> <span>getChildrenRecursively</span>(<span>VirtualFileFilter</span> filter) throws <span>IOException</span> {</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">        if (!isDirectory())</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>            return Collections.<span>emptyList</span>();</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">        if (filter == null)</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>            filter = <span>MatchAllVirtualFileFilter</span>.INSTANCE;</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>        <span>FilterVirtualFileVisitor</span> visitor = new <span>FilterVirtualFileVisitor</span>(filter, <span>VisitorAttributes</span>.<span>RECURSE</span>);</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">        visit(visitor);</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"><span>        return visitor.<span>getMatched</span>();</span></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 57px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">    }</div></div>
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