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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 jakarta.servlet.annotation;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

import jakarta.servlet.annotation.ServletSecurity.EmptyRoleSemantic;
import jakarta.servlet.annotation.ServletSecurity.TransportGuarantee;

/**
 * This annotation represents the security constraints that are applied to all requests with HTTP protocol method types
 * that are not otherwise represented by a corresponding {@link jakarta.servlet.annotation.HttpMethodConstraint} in a
 * {@link jakarta.servlet.annotation.ServletSecurity} annotation.
 *
 * @since Servlet 3.0
 */
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface HttpConstraint {

    /**
     * The EmptyRoleSemantic determines the behaviour when the rolesAllowed list is empty.
     *
     * @return empty role semantic
     */
    EmptyRoleSemantic value() default EmptyRoleSemantic.PERMIT;

    /**
     * Determines whether SSL/TLS is required to process the current request.
     *
     * @return transport guarantee
     */
    TransportGuarantee transportGuarantee() default TransportGuarantee.NONE;

    /**
     * The authorized roles' names. The container may discard duplicate role names during processing of the annotation.
     * N.B. The String "*" does not have a special meaning if it occurs as a role name.
     *
     * @return array of names. The array may be of zero length, in which case the EmptyRoleSemantic applies; the
     *             returned value determines whether access is to be permitted or denied regardless of the identity and
     *             authentication state in either case, PERMIT or DENY.

     *             Otherwise, when the array contains one or more role names access is permitted if the user a member of
     *             at least one of the named roles. The EmptyRoleSemantic is not applied in this case.
     */
    String[] rolesAllowed() default {};

}