dubbo-rpc-extensions/dubbo-rpc-rest/src/test/java/org/apache/dubbo/rpc/protocol/rest/filter/TraceRequestAndResponseFilter.java

/*
 * 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.dubbo.rpc.protocol.rest.filter;

import javax.annotation.Priority;
import javax.ws.rs.Priorities;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import java.io.IOException;

@Priority(Priorities.USER)
public class TraceRequestAndResponseFilter implements ContainerRequestFilter, ContainerResponseFilter {

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {

        requestContext.getHeaders().add("test-response", "header-result");
    }

    @Override
    public void filter(
            ContainerRequestContext containerRequestContext, ContainerResponseContext containerResponseContext)
            throws IOException {

        String headerString = containerRequestContext.getHeaderString("test-response");
        containerResponseContext.setEntity(headerString);
    }
}