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/*
 * Copyright 2005-2024 the original author or authors.
 *
 * 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 org.ameba.http.multitenancy.feign;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.ameba.Constants;
import org.ameba.tenancy.TenantHolder;

/**
 * A TenantRequestInterceptor intercepts Feign client calls and adds the tenant header to each call.
 *
 * @author Heiko Scherrer
 */
class TenantRequestInterceptor implements RequestInterceptor {

    /**
     * {@inheritDoc}
     *
     * Add the {@value Constants#HEADER_VALUE_X_TENANT} header.
     */
    @Override
    public void apply(RequestTemplate template) {
        TenantHolder.currentTenant().ifPresent(s -> template.header(Constants.HEADER_VALUE_X_TENANT, s));
    }
}