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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle (jaxrs-ri.jar). Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from the command line.

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/*
 * Copyright (C) 2011 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.glassfish.jersey.internal.guava;

import java.util.Comparator;
import java.util.SortedSet;

import static org.glassfish.jersey.internal.guava.Preconditions.checkNotNull;

/**
 * Utilities for dealing with sorted collections of all types.
 *
 * @author Louis Wasserman
 */
final class SortedIterables {
    private SortedIterables() {
    }

    /**
     * Returns {@code true} if {@code elements} is a sorted collection using an ordering equivalent
     * to {@code comparator}.
     */
    public static boolean hasSameComparator(Comparator comparator, Iterable elements) {
        checkNotNull(comparator);
        checkNotNull(elements);
        Comparator comparator2;
        if (elements instanceof SortedSet) {
            comparator2 = comparator((SortedSet) elements);
        } else if (elements instanceof SortedIterable) {
            comparator2 = ((SortedIterable) elements).comparator();
        } else {
            return false;
        }
        return comparator.equals(comparator2);
    }

    @SuppressWarnings("unchecked")
    // if sortedSet.comparator() is null, the set must be naturally ordered
    private static  Comparator comparator(SortedSet sortedSet) {
        Comparator result = sortedSet.comparator();
        if (result == null) {
            result = (Comparator) Ordering.natural();
        }
        return result;
    }
}