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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

package org.elasticsearch.client.internal;

import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.ActionRequest;
import org.elasticsearch.action.ActionResponse;
import org.elasticsearch.action.ActionType;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.tasks.TaskId;

/**
 * A {@linkplain Client} that sets the parent task on all requests that it makes. Use this to conveniently implement actions that cause
 * many other actions.
 */
public class ParentTaskAssigningClient extends FilterClient {
    private final TaskId parentTask;

    /**
     * Standard constructor.
     */
    public ParentTaskAssigningClient(Client in, TaskId parentTask) {
        super(in);
        this.parentTask = parentTask;
    }

    /**
     * Convenience constructor for building the TaskId out of what is usually at hand.
     */
    public ParentTaskAssigningClient(Client in, DiscoveryNode localNode, Task parentTask) {
        this(in, new TaskId(localNode.getId(), parentTask.getId()));
    }

    /**
     * Fetch the wrapped client. Use this to make calls that don't set {@link ActionRequest#setParentTask(TaskId)}.
     */
    public Client unwrap() {
        return in();
    }

    @Override
    protected  void doExecute(
        ActionType action,
        Request request,
        ActionListener listener
    ) {
        request.setParentTask(parentTask);
        super.doExecute(action, request, listener);
    }
}




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