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Apache Syncope Common REST API

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.syncope.common.rest.api;

/**
 * Preferences available to be specified during requests.
 *
 * @see RESTHeaders#PREFER
 * @see RESTHeaders#PREFERENCE_APPLIED
 */
public enum Preference {

    NONE(""),
    RETURN_CONTENT("return-content"),
    RETURN_NO_CONTENT("return-no-content");

    private final String literal;

    Preference(final String literal) {
        this.literal = literal;
    }

    @Override
    public String toString() {
        return literal;
    }

    public static Preference fromString(final String literal) {
        Preference result = null;

        for (Preference preference : values()) {
            if (preference.toString().equalsIgnoreCase(literal)) {
                result = preference;
            }
        }

        if (result == null) {
            result = NONE;
        }

        return result;
    }
}