com.sun.jersey.server.impl.uri.PathPattern 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
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.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2011 Oracle and/or its affiliates. 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
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/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 packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [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;
import com.sun.jersey.api.uri.UriPattern;
import com.sun.jersey.api.uri.UriTemplate;
import java.util.Comparator;
/**
* A URI pattern that is a regular expression generated from a URI path.
*
* @author [email protected]
*/
public final class PathPattern extends UriPattern {
/**
* Empty path.
* @see #PathPattern()
*/
public static final PathPattern EMPTY_PATH = new PathPattern();
/**
* The regular expression that represents the right hand side of
* a URI path.
*/
private static final String RIGHT_HAND_SIDE = "(/.*)?";
/**
* Defer to comparing the templates associated with the patterns.
*/
static public final Comparator COMPARATOR = new Comparator() {
public int compare(final PathPattern o1, final PathPattern o2) {
return UriTemplate.COMPARATOR.compare(o1.template, o2.template);
}
};
/**
* Empty UriTemplate, initialized just once in one of
* constructors.
* @see #PathPattern()
* @see #PathPattern(UriTemplate)
* @see #PathPattern(UriTemplate, String)
*/
private final UriTemplate template;
/**
* Private constructor, used only to instantiate EMPTY_PATH.
*/
private PathPattern() {
super();
this.template = UriTemplate.EMPTY;
}
/**
* Public constructor.
* @param template The template
*/
public PathPattern(final UriTemplate template) {
super(
PathPattern.postfixWithCapturingGroup(template.getPattern().getRegex()),
PathPattern.indexCapturingGroup(template.getPattern().getGroupIndexes())
);
this.template = template;
}
/**
* Public ctor.
* @param template The template
* @param rightHandSide Right hand side of the template
*/
public PathPattern(final UriTemplate template, final String rightHandSide) {
super(
PathPattern.postfixWithCapturingGroup(
template.getPattern().getRegex(),
rightHandSide
),
PathPattern.indexCapturingGroup(template.getPattern().getGroupIndexes())
);
this.template = template;
}
/**
* Get template.
* @return The template
*/
public UriTemplate getTemplate() {
return this.template;
}
/**
* Append tail-matching regex suffix to the regex provided.
* @param regex Regular expression
* @return The regex with the default suffix
* @see #PathPattern(UriTemplate)
*/
private static String postfixWithCapturingGroup(final String regex) {
return PathPattern.postfixWithCapturingGroup(
regex,
PathPattern.RIGHT_HAND_SIDE
);
}
/**
* Append tail-matching regex suffix to the regex provided.
* @param regex Regular expression
* @param rightHandSide The suffix to append
* @return The regex with the provided suffix
* @see #PathPattern(UriTemplate, String)
*/
private static String postfixWithCapturingGroup(final String regex, final String rightHandSide) {
return (regex.endsWith("/") ? regex.substring(0, regex.length() - 1) : regex)
+ rightHandSide;
}
/**
* Extend the list of group indexes by adding one more element
* the end of array, which is equal to last element plus 1.
* @param indexes Array of indexes
* @return New array
* @see #PathPattern(UriTemplate)
* @see #PathPattern(UriTemplate, String)
*/
private static int[] indexCapturingGroup(final int[] indexes) {
if (indexes.length == 0) {
return indexes;
}
final int[] cgIndexes = new int[indexes.length + 1];
System.arraycopy(indexes, 0, cgIndexes, 0, indexes.length);
cgIndexes[indexes.length] = cgIndexes[indexes.length - 1] + 1;
return cgIndexes;
}
}