org.springframework.web.client.AsyncRequestCallback.java Source code

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/*
 * Copyright 2002-2017 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
 *
 *      https://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.springframework.web.client;

import java.io.IOException;

/**
 * Callback interface for code that operates on an
 * {@link org.springframework.http.client.AsyncClientHttpRequest}. Allows to
 * manipulate the request headers, and write to the request body.
 *
 * <p>Used internally by the {@link AsyncRestTemplate}, but also useful for
 * application code.
 *
 * @author Arjen Poutsma
 * @see org.springframework.web.client.AsyncRestTemplate#execute
 * @since 4.0
 * @deprecated as of Spring 5.0, in favor of
 * {@link org.springframework.web.reactive.function.client.ExchangeFilterFunction}
 */
@FunctionalInterface
@Deprecated
public interface AsyncRequestCallback {

    /**
     * Gets called by {@link AsyncRestTemplate#execute} with an opened {@code ClientHttpRequest}.
     * Does not need to care about closing the request or about handling errors:
     * this will all be handled by the {@code RestTemplate}.
     * @param request the active HTTP request
     * @throws java.io.IOException in case of I/O errors
     */
    void doWithRequest(org.springframework.http.client.AsyncClientHttpRequest request) throws IOException;

}