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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 org.apache.flink.runtime.rest.handler.dataset;

import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.jobgraph.IntermediateDataSetID;
import org.apache.flink.runtime.resourcemanager.ResourceManagerGateway;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.handler.async.AbstractAsynchronousOperationHandlers;
import org.apache.flink.runtime.rest.handler.async.AsynchronousOperationInfo;
import org.apache.flink.runtime.rest.handler.async.OperationKey;
import org.apache.flink.runtime.rest.handler.resourcemanager.AbstractResourceManagerHandler;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.TriggerId;
import org.apache.flink.runtime.rest.messages.TriggerIdPathParameter;
import org.apache.flink.runtime.rest.messages.dataset.ClusterDataSetDeleteStatusHeaders;
import org.apache.flink.runtime.rest.messages.dataset.ClusterDataSetDeleteStatusMessageParameters;
import org.apache.flink.runtime.rest.messages.dataset.ClusterDataSetDeleteTriggerHeaders;
import org.apache.flink.runtime.rest.messages.dataset.ClusterDataSetDeleteTriggerMessageParameters;
import org.apache.flink.runtime.rest.messages.dataset.ClusterDataSetIdPathParameter;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import org.apache.flink.util.SerializedThrowable;

import java.util.Map;
import java.util.concurrent.CompletableFuture;

/** Handler for {@link ClusterDataSetDeleteTriggerHeaders}. */
public class ClusterDataSetDeleteHandlers
        extends AbstractAsynchronousOperationHandlers {

    /** {@link TriggerHandler} implementation for the cluster data set delete operation. */
    public class ClusterDataSetDeleteTriggerHandler
            extends TriggerHandler<
                    RestfulGateway,
                    EmptyRequestBody,
                    ClusterDataSetDeleteTriggerMessageParameters> {

        private final GatewayRetriever resourceManagerGatewayRetriever;

        public ClusterDataSetDeleteTriggerHandler(
                GatewayRetriever leaderRetriever,
                Time timeout,
                Map responseHeaders,
                GatewayRetriever resourceManagerGatewayRetriever) {
            super(
                    leaderRetriever,
                    timeout,
                    responseHeaders,
                    ClusterDataSetDeleteTriggerHeaders.INSTANCE);
            this.resourceManagerGatewayRetriever = resourceManagerGatewayRetriever;
        }

        @Override
        protected CompletableFuture triggerOperation(
                HandlerRequest
                        request,
                RestfulGateway gateway)
                throws RestHandlerException {
            final IntermediateDataSetID clusterPartitionId =
                    request.getPathParameter(ClusterDataSetIdPathParameter.class);
            ResourceManagerGateway resourceManagerGateway =
                    AbstractResourceManagerHandler.getResourceManagerGateway(
                            resourceManagerGatewayRetriever);
            return resourceManagerGateway.releaseClusterPartitions(clusterPartitionId);
        }

        @Override
        protected OperationKey createOperationKey(
                HandlerRequest
                        request) {
            return new OperationKey(new TriggerId());
        }
    }

    /** {@link StatusHandler} implementation for the cluster data set delete operation. */
    public class ClusterDataSetDeleteStatusHandler
            extends StatusHandler<
                    RestfulGateway,
                    AsynchronousOperationInfo,
                    ClusterDataSetDeleteStatusMessageParameters> {

        public ClusterDataSetDeleteStatusHandler(
                GatewayRetriever leaderRetriever,
                Time timeout,
                Map responseHeaders) {
            super(
                    leaderRetriever,
                    timeout,
                    responseHeaders,
                    ClusterDataSetDeleteStatusHeaders.INSTANCE);
        }

        @Override
        protected OperationKey getOperationKey(
                HandlerRequest
                        request) {
            final TriggerId triggerId = request.getPathParameter(TriggerIdPathParameter.class);
            return new OperationKey(triggerId);
        }

        @Override
        protected AsynchronousOperationInfo exceptionalOperationResultResponse(
                Throwable throwable) {
            return AsynchronousOperationInfo.completeExceptional(
                    new SerializedThrowable(throwable));
        }

        @Override
        protected AsynchronousOperationInfo operationResultResponse(Void ignored) {
            return AsynchronousOperationInfo.complete();
        }
    }
}




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