com.sun.jersey.server.impl.uri.rules.SequentialMatchingPatterns Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jersey-bundle Show documentation

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.

There is a newer version: 1.19.4

Show newest version

/*
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * 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 https://jersey.dev.java.net/CDDL+GPL.html
 * or jersey/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at jersey/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
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();
        }
    }
}