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 * 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
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package org.elasticsearch.action.search;

import org.elasticsearch.Version;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.util.concurrent.AtomicArray;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.search.SearchPhaseResult;
import org.elasticsearch.search.SearchShardTarget;
import org.elasticsearch.test.ESTestCase;

import java.io.IOException;

public class TransportSearchHelperTests extends ESTestCase {

    public void testParseScrollId() throws IOException {
        AtomicArray<SearchPhaseResult> array = new AtomicArray<>(3);
        DiscoveryNode node1 = new DiscoveryNode("node_1", buildNewFakeTransportAddress(), Version.CURRENT);
        DiscoveryNode node2 = new DiscoveryNode("node_2", buildNewFakeTransportAddress(), Version.CURRENT);
        DiscoveryNode node3 = new DiscoveryNode("node_3", buildNewFakeTransportAddress(), Version.CURRENT);
        SearchAsyncActionTests.TestSearchPhaseResult testSearchPhaseResult1 = new SearchAsyncActionTests.TestSearchPhaseResult(1, node1);
        testSearchPhaseResult1.setSearchShardTarget(new SearchShardTarget("node_1", new ShardId("idx", "uuid1", 2), "cluster_x", null));
        SearchAsyncActionTests.TestSearchPhaseResult testSearchPhaseResult2 = new SearchAsyncActionTests.TestSearchPhaseResult(12, node2);
        testSearchPhaseResult2.setSearchShardTarget(new SearchShardTarget("node_2", new ShardId("idy", "uuid2", 42), "cluster_y", null));
        SearchAsyncActionTests.TestSearchPhaseResult testSearchPhaseResult3 = new SearchAsyncActionTests.TestSearchPhaseResult(42, node3);
        testSearchPhaseResult3.setSearchShardTarget(new SearchShardTarget("node_3", new ShardId("idy", "uuid2", 43), null, null));
        array.setOnce(0, testSearchPhaseResult1);
        array.setOnce(1, testSearchPhaseResult2);
        array.setOnce(2, testSearchPhaseResult3);


        String scrollId = TransportSearchHelper.buildScrollId(array);
        ParsedScrollId parseScrollId = TransportSearchHelper.parseScrollId(scrollId);
        assertEquals(3, parseScrollId.getContext().length);
        assertEquals("node_1", parseScrollId.getContext()[0].getNode());
        assertEquals("cluster_x", parseScrollId.getContext()[0].getClusterAlias());
        assertEquals(1, parseScrollId.getContext()[0].getScrollId());

        assertEquals("node_2", parseScrollId.getContext()[1].getNode());
        assertEquals("cluster_y", parseScrollId.getContext()[1].getClusterAlias());
        assertEquals(12, parseScrollId.getContext()[1].getScrollId());

        assertEquals("node_3", parseScrollId.getContext()[2].getNode());
        assertNull(parseScrollId.getContext()[2].getClusterAlias());
        assertEquals(42, parseScrollId.getContext()[2].getScrollId());
    }
}