NormalizeFilter.java

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package com.sun.jersey.server.impl.container.filter;

import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.server.impl.uri.UriHelper;
import com.sun.jersey.spi.container.ContainerRequest;
import com.sun.jersey.spi.container.ContainerRequestFilter;
import java.net.URI;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;

/**
 *
 * @author Paul.Sandoz@Sun.Com
 */
public class NormalizeFilter implements ContainerRequestFilter {
    @Context ResourceConfig resourceConfig;
    
    public ContainerRequest filter(ContainerRequest request) {
        if (resourceConfig.getFeature(ResourceConfig.FEATURE_NORMALIZE_URI)) {
            final URI uri = request.getRequestUri();
            final URI normalizedUri = UriHelper.normalize(uri,
                    !resourceConfig.getFeature(ResourceConfig.FEATURE_CANONICALIZE_URI_PATH));

            if (uri != normalizedUri) {
                if (resourceConfig.getFeature(ResourceConfig.FEATURE_REDIRECT)) {
                    throw new WebApplicationException(
                            Response.temporaryRedirect(normalizedUri).build());
                } else {
                    final URI baseUri = UriHelper.normalize(request.getBaseUri(),
                        !resourceConfig.getFeature(ResourceConfig.FEATURE_CANONICALIZE_URI_PATH));
                    request.setUris(baseUri, normalizedUri);
                }
            }
        }
        return request;
    }
}