import java.util.Arrays;
public class RoutingBackwardCompatibilityTests extends ElasticsearchTestCase {
public void testBackwardCompatibility() throws Exception {
InternalNode node = new InternalNode();
try {
try (BufferedReader reader = new BufferedReader(new InputStreamReader(RoutingBackwardCompatibilityTests.class.getResourceAsStream("/org/elasticsearch/cluster/routing/shard_routes.txt"), "UTF-8"))) {
for (String line = reader.readLine(); line != null; line = reader.readLine()) {
if (line.startsWith("#")) { // comment
continue;
}
String[] parts = line.split("\t");
assertEquals(Arrays.toString(parts), 7, parts.length);
final String index = parts[0];
final int numberOfShards = Integer.parseInt(parts[1]);
final String type = parts[2];
final String id = parts[3];
final String routing = "null".equals(parts[4]) ? null : parts[4];
final int pre20ExpectedShardId = Integer.parseInt(parts[5]);
final int currentExpectedShard = Integer.parseInt(parts[6]);
OperationRouting operationRouting = node.injector().getInstance(OperationRouting.class);
for (Version version : allVersions()) {
final Settings settings = settings(version).build();
IndexMetaData indexMetaData = IndexMetaData.builder(index).settings(settings).numberOfShards(numberOfShards).numberOfReplicas(randomInt(3)).build();
MetaData.Builder metaData = MetaData.builder().put(indexMetaData, false);
RoutingTable routingTable = RoutingTable.builder().addAsNew(indexMetaData).build();
ClusterState clusterState = ClusterState.builder(ClusterName.DEFAULT).metaData(metaData).routingTable(routingTable).build();
final int shardId = operationRouting.indexShards(clusterState, index, type, id, routing).shardId().getId();
if (version.before(Version.V_2_0_0)) {
assertEquals(pre20ExpectedShardId, shardId);
} else {
assertEquals(currentExpectedShard, shardId);
}
}
}
}
} finally {
node.close();
}
}