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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) 2010, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.message.internal;

import java.text.ParseException;
import java.util.Collections;
import java.util.Set;

import jakarta.ws.rs.core.EntityTag;

import org.glassfish.jersey.internal.LocalizationMessages;

/**
 * A matching entity tag.
 * 
 * Note that this type and it's super type cannot be used to create request
 * header values for {@code If-Match} and {@code If-None-Match}
 * of the form {@code If-Match: *} or {@code If-None-Match: *} as
 * {@code *} is not a valid entity tag.
 *
 * @author Paul Sandoz
 * @author Marek Potociar
 */
public class MatchingEntityTag extends EntityTag {

    /**
     * An empty set that corresponds to {@code If-Match: *} or {@code If-None-Match: *}.
     */
    public static final Set ANY_MATCH = Collections.emptySet();

    /**
     * Create new strongly validating entity tag.
     *
     * @param value ETag header value.
     */
    public MatchingEntityTag(String value) {
        super(value, false);
    }

    /**
     * Create new matching entity tag.
     *
     * @param value ETag header value.
     * @param weak should be set to false, if strong validation is required,
     *            otherwise should be set to true.
     */
    public MatchingEntityTag(String value, boolean weak) {
        super(value, weak);
    }

    /**
     * Create new matching entity tag out of provided header reader.
     *
     * @param reader HTTP header content reader.
     * @return a new matching entity tag.
     * @throws ParseException in case the header could not be parsed.
     */
    public static MatchingEntityTag valueOf(HttpHeaderReader reader) throws ParseException {
        final CharSequence tagString = reader.getRemainder();

        HttpHeaderReader.Event e = reader.next(false);
        if (e == HttpHeaderReader.Event.QuotedString) {
            return new MatchingEntityTag(reader.getEventValue().toString());
        } else if (e == HttpHeaderReader.Event.Token) {
            CharSequence ev = reader.getEventValue();
            if (ev != null && ev.length() == 1 && 'W' == ev.charAt(0)) {
                reader.nextSeparator('/');
                return new MatchingEntityTag(reader.nextQuotedString().toString(), true);
            }
        }

        throw new ParseException(LocalizationMessages.ERROR_PARSING_ENTITY_TAG(tagString), reader.getIndex());
    }
}