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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.elasticsearch.client.transport.support;

import com.google.common.collect.ImmutableMap;
import org.elasticsearch.action.*;
import org.elasticsearch.client.transport.TransportClientNodesService;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.collect.MapBuilder;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.transport.TransportService;

import java.util.Map;

/**
 *
 */
public class TransportProxyClient {

    private final TransportClientNodesService nodesService;
    private final ImmutableMap proxies;

    @Inject
    public TransportProxyClient(Settings settings, TransportService transportService, TransportClientNodesService nodesService, Map actions) {
        this.nodesService = nodesService;
        MapBuilder actionsBuilder = new MapBuilder<>();
        for (GenericAction action : actions.values()) {
            if (action instanceof Action) {
                actionsBuilder.put((Action) action, new TransportActionNodeProxy(settings, action, transportService));
            }
        }
        this.proxies = actionsBuilder.immutableMap();
    }

    public > void execute(final Action action, final Request request, ActionListener listener) {
        final TransportActionNodeProxy proxy = proxies.get(action);
        nodesService.execute(new TransportClientNodesService.NodeListenerCallback() {
            @Override
            public void doWithNode(DiscoveryNode node, ActionListener listener) {
                proxy.execute(node, request, listener);
            }
        }, listener);
    }
}




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