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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, 2019 Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2018 Payara Foundation and/or its affiliates.
 *
 * 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.client.internal.inject;

import org.glassfish.jersey.client.inject.ParameterUpdater;

/**
 * Update value of the parameter by returning the first string parameter value
 * found in the list of string parameter values.
 * 
 * This class can be seen as a special, optimized, case of {@link SingleValueUpdater}.
 *
 * @author Paul Sandoz
 * @author Marek Potociar
 * @author Gaurav Gupta ([email protected])
 */
final class SingleStringValueUpdater implements ParameterUpdater {

    private final String paramName;
    private final String defaultValue;

    /**
     * Create new single string value updater.
     *
     * @param parameterName string parameter name.
     * @param defaultValue  default value.
     */
    public SingleStringValueUpdater(String parameterName, String defaultValue) {
        this.paramName = parameterName;
        this.defaultValue = defaultValue;
    }

    @Override
    public String getName() {
        return paramName;
    }

    @Override
    public String getDefaultValueString() {
        return defaultValue;
    }

    /**
     * {@inheritDoc}
     * 
     * This implementation return s the first String value found in the list of
     * potential multiple string parameter values. Any other values in the multi-value
     * list will be ignored.
     *
     * @param parameters map of parameters.
     * @return updated single string parameter value.
     */
    @Override
    public String update(String value) {
        return (value != null) ? value : defaultValue;
    }
}