org.apache.flink.runtime.rest.handler.router.RoutedRequest Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of flink-runtime_2.11 Show documentation
There is a newer version: 1.13.6
/*
 * 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.flink.runtime.rest.handler.router;

import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpRequest;
import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.QueryStringDecoder;
import org.apache.flink.shaded.netty4.io.netty.util.ReferenceCountUtil;
import org.apache.flink.shaded.netty4.io.netty.util.ReferenceCounted;

import java.util.Optional;

import static org.apache.flink.util.Preconditions.checkNotNull;

/**
 * Class for handling {@link HttpRequest} with associated {@link RouteResult}.
 */
public class RoutedRequest implements ReferenceCounted {
	private final RouteResult result;
	private final HttpRequest request;

	private final Optional requestAsReferenceCounted;
	private final QueryStringDecoder queryStringDecoder;

	public RoutedRequest(RouteResult result, HttpRequest request) {
		this.result = checkNotNull(result);
		this.request = checkNotNull(request);
		this.requestAsReferenceCounted = Optional.ofNullable((request instanceof ReferenceCounted) ? (ReferenceCounted) request : null);
		this.queryStringDecoder = new QueryStringDecoder(request.uri());
	}

	public RouteResult getRouteResult() {
		return result;
	}

	public HttpRequest getRequest() {
		return request;
	}

	public String getPath() {
		return queryStringDecoder.path();
	}

	@Override
	public int refCnt() {
		if (requestAsReferenceCounted.isPresent()) {
			return requestAsReferenceCounted.get().refCnt();
		}
		return 0;
	}

	@Override
	public boolean release() {
		if (requestAsReferenceCounted.isPresent()) {
			return requestAsReferenceCounted.get().release();
		}
		return true;
	}

	@Override
	public boolean release(int arg0) {
		if (requestAsReferenceCounted.isPresent()) {
			return requestAsReferenceCounted.get().release(arg0);
		}
		return true;
	}

	@Override
	public ReferenceCounted retain() {
		if (requestAsReferenceCounted.isPresent()) {
			requestAsReferenceCounted.get().retain();
		}
		return this;
	}

	@Override
	public ReferenceCounted retain(int arg0) {
		if (requestAsReferenceCounted.isPresent()) {
			requestAsReferenceCounted.get().retain(arg0);
		}
		return this;
	}

	@Override
	public ReferenceCounted touch() {
		if (requestAsReferenceCounted.isPresent()) {
			ReferenceCountUtil.touch(requestAsReferenceCounted.get());
		}
		return this;
	}

	@Override
	public ReferenceCounted touch(Object hint) {
		if (requestAsReferenceCounted.isPresent()) {
			ReferenceCountUtil.touch(requestAsReferenceCounted.get(), hint);
		}
		return this;
	}
}