co.cask.cdap.common.http.SecurityRequestContext.java Source code

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Here is the source code for co.cask.cdap.common.http.SecurityRequestContext.java

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/*
 * Copyright  2014 Cask Data, Inc.
 *
 * 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 co.cask.cdap.common.http;

import com.google.common.base.Optional;

/**
 * RequestContext that maintains a ThreadLocal with references to {@code AccessTokenIdentifier}.
 */
public final class SecurityRequestContext {
    private static final ThreadLocal<String> userId = new InheritableThreadLocal<>();

    private SecurityRequestContext() {
    }

    /**
     * @return the userId set on the current thread
     */
    public static Optional<String> getUserId() {
        return Optional.fromNullable(userId.get());
    }

    /**
     * Set the userId on the current thread.
     * @param userIdParam userId to be set
     */
    public static void setUserId(String userIdParam) {
        userId.set(userIdParam);
    }
}