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A bundle containing code of all jar-based modules that provide JAX-RS and Jersey-related features. Such a bundle is *only intended* for developers that do not use Maven's dependency system. The bundle does not include code for contributes, tests and samples.

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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
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package com.sun.jersey.server.impl.uri.rules;

import com.sun.jersey.api.uri.UriPattern;
import com.sun.jersey.spi.uri.rules.UriMatchResultContext;
import com.sun.jersey.spi.uri.rules.UriRules;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.regex.MatchResult;

/**
 * Rules associated with instances of {@link UriPattern) and matched 
 * in order. Zero or more matches may occur.
 * 
 * @author [email protected]
 */
public final class SequentialMatchingPatterns implements UriRules {

    private final List> rules;

    public SequentialMatchingPatterns(List> rules) {
        this.rules = rules;
    }
    
    public Iterator match(CharSequence path, UriMatchResultContext resultContext) {
        return new XInterator(path, resultContext);
    }

    private final class XInterator implements Iterator {

        private final CharSequence path;
        private final UriMatchResultContext resultContext;
        private final Iterator> i;
        private R r;

        XInterator(CharSequence path, UriMatchResultContext resultContext) {
            this.path = path;
            this.resultContext = resultContext;
            this.i = rules.iterator();
        }
        
        public boolean hasNext() {
            if (r != null) return true;
            
            while(i.hasNext()) {
                final PatternRulePair prp = i.next();
                final MatchResult mr = prp.p.match(path);
                if (mr != null) {
                    resultContext.setMatchResult(mr);
                    r = prp.r;
                    return true;
                }                
            }
            r = null;
            return false;
        }

        public R next() {
            if (!hasNext()) throw new NoSuchElementException();

            final R _r = r;
            r = null;
            return _r;
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }
    }
}