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https://issues.apache.org/jira/browse/HTTPCORE-104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roland Weber updated HTTPCORE-104:
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Fix Version/s: (was: 4.0-beta1)
(was: 4.0-rc1)
> Handler Registry Should Match Using Regular Expressions
> -------------------------------------------------------
>
> Key: HTTPCORE-104
> URL: https://issues.apache.org/jira/browse/HTTPCORE-104
> Project: HttpComponents Core
> Issue Type: Improvement
> Components: HttpCore
> Affects Versions: 4.0-alpha4, 4.0-alpha5, 4.0-alpha6, 4.0-beta1, 4.0-rc1
> Reporter: Nels N. Nelson
> Fix For: 4.0-alpha6
>
>
> Hello!
> In HttpRequestHandlerRegistry, the method matchUriRequestPattern(final String
> pattern, final String requestUri) uses what is, in my opinion, a poor
> strategy for pattern matching.
> This method is better and provides more flexibility to developers trying to
> add new Handlers:
> <code>
> protected boolean matchUriRequestPattern(final String pattern,
> final URI requestUri)
> {
> try {
> String path = requestUri.getPath();
> Pattern p = Pattern.compile(pattern);
> Matcher matcher = p.matcher(path);
> return matcher.matches();
> }
> catch (java.util.regex.PatternSyntaxException ex) {
> return false;
> }
> }
> </code>
> These changes would make this code far more accurate:
> <code>
> protected void doService(
> final HttpRequest request,
> final HttpResponse response,
> final HttpContext context) throws HttpException, IOException {
> HttpRequestHandler handler = null;
> if (this.handlerResolver != null) {
> URI requestURI = request.getRequestLine().getUri();
> handler = this.handlerResolver.lookup(requestURI);
> }
> if (handler != null) {
> handler.handle(request, response, context);
> } else {
> response.setStatusCode(HttpStatus.SC_NOT_IMPLEMENTED);
> }
> }
> </code>
> These changes would allow developers to add new custom handlers in this way:
> <code>
> String pattern = ".*\\.extension";
> HttpRequestHandler handler = new HttpServletHandler(...);
> HttpRequestHandlerRegistry reqistry = new HttpRequestHandlerRegistry();
> reqistry.register(pattern, handler);
> </code>
> Currently, my version of the HttpComponents core software uses
> <code>URI</code> to represent the <code>requestURI</code> parameter
> throughout the code. This has provided greater convenience, error handling
> (in the instantiation of the <code>BasicRequestLine</code> class, for
> instance), and flexibility of extension. I can enumerate the specifics on
> this, if necessary, but I believe that would be a discussion for a separate
> Jira Issue, which I will happily create, if I am convinced that its priority
> would be at least major, which currently, I am not. Such a change would
> cause several changes throughout multiple classes, stemming from changes to
> the <code>RequestLine</code> interface as follows:
> <code>
> public interface RequestLine {
> String getMethod();
> HttpVersion getHttpVersion();
> URI getUri();
>
> }
> </code>
> Thanks for your attention to this issue.
> -Nels
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