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Re: [2/2] calcite git commit: [CALCITE-2347] running ElasticSearch in embedded mode for unit tests of ES adapter (Andrei Sereda)


Hmm. Both master and c12cb4b0de work for me. Perhaps the issue is JDK 8 vs
9 ?

# JDK8 (oracle) /  macOS
$ mvn clean -DskipTests site

On Fri, Jun 22, 2018 at 5:56 PM Julian Hyde <jhyde@xxxxxxxxxx> wrote:

> I just tried it again. The following fails for me (jdk9, ubuntu):
>
> $ git checkout c12cb4b0de
> $ mvn clean -DskipTests site
>
> Constructing Javadoc information...
> 1 error
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Reactor Summary:
> [INFO]
> [INFO] Calcite 1.17.0-SNAPSHOT ............................ FAILURE [02:29
> min]
> [INFO] Calcite Linq4j ..................................... SKIPPED
> [INFO] Calcite Core ....................................... SKIPPED
> [INFO] Calcite Cassandra .................................. SKIPPED
> [INFO] Calcite Druid ...................................... SKIPPED
> [INFO] Calcite Elasticsearch .............................. SKIPPED
> [INFO] Calcite Elasticsearch5 ............................. SKIPPED
> [INFO] Calcite Examples ................................... SKIPPED
> [INFO] Calcite Example CSV ................................ SKIPPED
> [INFO] Calcite Example Function ........................... SKIPPED
> [INFO] Calcite File ....................................... SKIPPED
> [INFO] Calcite Geode ...................................... SKIPPED
> [INFO] Calcite MongoDB .................................... SKIPPED
> [INFO] Calcite Pig ........................................ SKIPPED
> [INFO] Calcite Piglet ..................................... SKIPPED
> [INFO] Calcite Plus ....................................... SKIPPED
> [INFO] Calcite Server ..................................... SKIPPED
> [INFO] Calcite Spark ...................................... SKIPPED
> [INFO] Calcite Splunk ..................................... SKIPPED
> [INFO] Calcite Ubenchmark 1.17.0-SNAPSHOT ................. SKIPPED
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 02:29 min
> [INFO] Finished at: 2018-06-22T14:53:13-07:00
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-site-plugin:3.7:site (default-site) on
> project calcite: Error generating maven-javadoc-plugin:3.0.1:test-aggregate
> report:
> [ERROR] Exit code: 1 -
> /home/jhyde/open1/calcite.4/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticNode.java:29:
> error: package org.elasticsearch.node.internal does not exist
> [ERROR] import org.elasticsearch.node.internal.InternalSettingsPreparer;
> [ERROR]                                       ^
> [ERROR]
> [ERROR] Command line was: /usr/lib/jvm/jdk9/bin/javadoc @options @packages
> @argfile
> [ERROR]
> [ERROR] Refer to the generated Javadoc files in
> '/home/jhyde/open1/calcite.4/target/site/testapidocs' dir.
> [ERROR] -> [Help 1]
> [ERROR]
> [ERROR] To see the full stack trace of the errors, re-run Maven with the
> -e switch.
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR]
> [ERROR] For more information about the errors and possible solutions,
> please read the following articles:
> [ERROR] [Help 1]
> http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
>
>
> > On Jun 22, 2018, at 2:41 PM, Michael Mior <mmior@xxxxxxxxxx> wrote:
> >
> > Odd, mvn clean site still works fine for me.
> > --
> > Michael Mior
> > mmior@xxxxxxxxxx
> >
> >
> >
> > Le ven. 22 juin 2018 à 17:12, Julian Hyde <jhyde@xxxxxxxxxx> a écrit :
> >
> >> Looks like this change broke “mvn site” (perhaps also “mvn
> >> javadoc:test-javadoc”).
> >>
> >> [ERROR] Failed to execute goal
> >> org.apache.maven.plugins:maven-site-plugin:3.7:site (default-site) on
> >> project calcite: Error generating
> maven-javadoc-plugin:3.0.1:test-aggregate
> >> report:
> >> [ERROR] Exit code: 1 -
> >>
> /home/jhyde/regress/calcite/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticNode.java:29:
> >> error: package org.elasticsearch.node.internal does not exist
> >> [ERROR] import org.elasticsearch.node.internal.InternalSettingsPreparer;
> >> [ERROR]                                       ^
> >> [ERROR]
> >>
> >>> On Jun 21, 2018, at 3:39 AM, mmior@xxxxxxxxxx wrote:
> >>>
> >>> [CALCITE-2347] running ElasticSearch in embedded mode for unit tests of
> >> ES adapter (Andrei Sereda)
> >>>
> >>> After discussion on dev-list Integration tests (for ES) have been
> >> removed. They're now
> >>> superseded by unit tests (which execute queries against a real elastic
> >> instance)
> >>>
> >>> Added local file (zips-mini.json) which contains a small subset of
> >> original zips.json
> >>> (allows to bootstrap tests faster)
> >>>
> >>> Created separate ES JUnit rule which can be re-used across different
> >> tests.
> >>>
> >>> Both v2 and v5 of ES adapters are supported.
> >>>
> >>> Close apache/calcite#716
> >>>
> >>>
> >>> Project: http://git-wip-us.apache.org/repos/asf/calcite/repo
> >>> Commit: http://git-wip-us.apache.org/repos/asf/calcite/commit/c12cb4b0
> >>> Tree: http://git-wip-us.apache.org/repos/asf/calcite/tree/c12cb4b0
> >>> Diff: http://git-wip-us.apache.org/repos/asf/calcite/diff/c12cb4b0
> >>>
> >>> Branch: refs/heads/master
> >>> Commit: c12cb4b0de1baa3f7cbb9952ee350fdd1701662d
> >>> Parents: 37944bb
> >>> Author: Andrei Sereda <andrei@xxxxxxxxxx>
> >>> Authored: Thu May 31 18:19:10 2018 -0400
> >>> Committer: Michael Mior <mmior@xxxxxxxxxxxx>
> >>> Committed: Thu Jun 21 06:38:50 2018 -0400
> >>>
> >>> ----------------------------------------------------------------------
> >>> .../AbstractElasticsearchTable.java             |  12 +
> >>> .../elasticsearch/ElasticsearchProject.java     |  61 ++-
> >>> elasticsearch2/pom.xml                          |   6 +
> >>> .../Elasticsearch2Enumerator.java               |  12 +-
> >>> .../elasticsearch2/Elasticsearch2Schema.java    |  16 +-
> >>> .../elasticsearch2/Elasticsearch2Table.java     |   9 +-
> >>> .../ElasticSearch2AdapterTest.java              | 395
> ++++++++++++++++++
> >>> .../elasticsearch2/EmbeddedElasticNode.java     | 147 +++++++
> >>> .../elasticsearch2/EmbeddedElasticRule.java     |  97 +++++
> >>> .../org/apache/calcite/test/ElasticChecker.java |  49 +++
> >>> .../calcite/test/Elasticsearch2AdapterIT.java   | 270 -------------
> >>> .../resources/elasticsearch-zips-model.json     |  50 ---
> >>> .../src/test/resources/zips-mini.json           | 149 +++++++
> >>> elasticsearch5/pom.xml                          |  31 ++
> >>> .../elasticsearch5/Elasticsearch5Schema.java    |  17 +-
> >>> .../elasticsearch5/Elasticsearch5Table.java     |  11 +-
> >>> .../ElasticSearch5AdapterTest.java              | 399
> +++++++++++++++++++
> >>> .../elasticsearch5/EmbeddedElasticNode.java     | 153 +++++++
> >>> .../elasticsearch5/EmbeddedElasticRule.java     |  98 +++++
> >>> .../org/apache/calcite/test/ElasticChecker.java |  49 +++
> >>> .../calcite/test/Elasticsearch5AdapterIT.java   | 270 -------------
> >>> .../resources/elasticsearch-zips-model.json     |  50 ---
> >>> elasticsearch5/src/test/resources/log4j2.xml    |  16 +
> >>> .../src/test/resources/zips-mini.json           | 149 +++++++
> >>> pom.xml                                         |  20 +-
> >>> 25 files changed, 1866 insertions(+), 670 deletions(-)
> >>> ----------------------------------------------------------------------
> >>>
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/core/src/main/java/org/apache/calcite/adapter/elasticsearch/AbstractElasticsearchTable.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/core/src/main/java/org/apache/calcite/adapter/elasticsearch/AbstractElasticsearchTable.java
> >>
> b/core/src/main/java/org/apache/calcite/adapter/elasticsearch/AbstractElasticsearchTable.java
> >>> index 0980469..8cc5933 100644
> >>> ---
> >>
> a/core/src/main/java/org/apache/calcite/adapter/elasticsearch/AbstractElasticsearchTable.java
> >>> +++
> >>
> b/core/src/main/java/org/apache/calcite/adapter/elasticsearch/AbstractElasticsearchTable.java
> >>> @@ -75,6 +75,18 @@ public abstract class AbstractElasticsearchTable
> >> extends AbstractQueryableTable
> >>>        relOptTable, this, null);
> >>>  }
> >>>
> >>> +  /**
> >>> +   * In ES 5.x scripted fields start with {@code params._source.foo}
> >> while in ES2.x
> >>> +   * {@code _source.foo}. Helper method to build correct query based
> on
> >> runtime version of elastic.
> >>> +   *
> >>> +   * @see <a href="
> >> https://github.com/elastic/elasticsearch/issues/20068";>_source
> >> variable</a>
> >>> +   * @see <a href="
> >>
> https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-scripting-fields.html
> ">Scripted
> >> Fields</a>
> >>> +   */
> >>> +  protected String scriptedFieldPrefix() {
> >>> +    // this is default pattern starting 5.x
> >>> +    return "params._source";
> >>> +  }
> >>> +
> >>>  /** Executes a "find" operation on the underlying type.
> >>>   *
> >>>   * <p>For example,
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/core/src/main/java/org/apache/calcite/adapter/elasticsearch/ElasticsearchProject.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/core/src/main/java/org/apache/calcite/adapter/elasticsearch/ElasticsearchProject.java
> >>
> b/core/src/main/java/org/apache/calcite/adapter/elasticsearch/ElasticsearchProject.java
> >>> index b42abd7..961c8b0 100644
> >>> ---
> >>
> a/core/src/main/java/org/apache/calcite/adapter/elasticsearch/ElasticsearchProject.java
> >>> +++
> >>
> b/core/src/main/java/org/apache/calcite/adapter/elasticsearch/ElasticsearchProject.java
> >>> @@ -27,11 +27,15 @@ import
> >> org.apache.calcite.rel.metadata.RelMetadataQuery;
> >>> import org.apache.calcite.rel.type.RelDataType;
> >>> import org.apache.calcite.rex.RexNode;
> >>> import org.apache.calcite.util.Pair;
> >>> -import org.apache.calcite.util.Util;
> >>> +
> >>> +import com.google.common.base.Function;
> >>> +import com.google.common.collect.Lists;
> >>>
> >>> import java.util.ArrayList;
> >>> import java.util.List;
> >>>
> >>> +import javax.annotation.Nullable;
> >>> +
> >>> /**
> >>> * Implementation of {@link org.apache.calcite.rel.core.Project}
> >>> * relational expression in Elasticsearch.
> >>> @@ -57,41 +61,60 @@ public class ElasticsearchProject extends Project
> >> implements ElasticsearchRel {
> >>>    implementor.visitChild(0, getInput());
> >>>
> >>>    final List<String> inFields =
> >>> -
> >> ElasticsearchRules.elasticsearchFieldNames(getInput().getRowType());
> >>> +
> >> ElasticsearchRules.elasticsearchFieldNames(getInput().getRowType());
> >>>    final ElasticsearchRules.RexToElasticsearchTranslator translator =
> >>> -        new ElasticsearchRules.RexToElasticsearchTranslator(
> >>> -            (JavaTypeFactory) getCluster().getTypeFactory(),
> inFields);
> >>> +            new ElasticsearchRules.RexToElasticsearchTranslator(
> >>> +                    (JavaTypeFactory) getCluster().getTypeFactory(),
> >> inFields);
> >>>
> >>> -    final List<String> findItems = new ArrayList<>();
> >>> -    final List<String> scriptFieldItems = new ArrayList<>();
> >>> +    final List<String> fields = new ArrayList<>();
> >>> +    final List<String> scriptFields = new ArrayList<>();
> >>>    for (Pair<RexNode, String> pair: getNamedProjects()) {
> >>>      final String name = pair.right;
> >>>      final String expr = pair.left.accept(translator);
> >>>
> >>>      if (expr.equals("\"" + name + "\"")) {
> >>> -        findItems.add(ElasticsearchRules.quote(name));
> >>> +        fields.add(name);
> >>>      } else if (expr.matches("\"literal\":.+")) {
> >>> -        scriptFieldItems.add(ElasticsearchRules.quote(name)
> >>> -            + ":{\"script\": "
> >>> -            + expr.split(":")[1] + "}");
> >>> +        scriptFields.add(ElasticsearchRules.quote(name)
> >>> +                + ":{\"script\": "
> >>> +                + expr.split(":")[1] + "}");
> >>>      } else {
> >>> -        scriptFieldItems.add(ElasticsearchRules.quote(name)
> >>> -            + ":{\"script\":\"params._source."
> >>> -            + expr.replaceAll("\"", "") + "\"}");
> >>> +        scriptFields.add(ElasticsearchRules.quote(name)
> >>> +                + ":{\"script\":"
> >>> +                // _source (ES2) vs params._source (ES5)
> >>> +                + "\"" +
> >> implementor.elasticsearchTable.scriptedFieldPrefix() + "."
> >>> +                + expr.replaceAll("\"", "") + "\"}");
> >>> +      }
> >>> +    }
> >>> +
> >>> +    StringBuilder query = new StringBuilder();
> >>> +    if (scriptFields.isEmpty()) {
> >>> +      List<String> newList = Lists.transform(fields, new
> >> Function<String, String>() {
> >>> +        @Nullable
> >>> +        @Override public String apply(@Nullable String input) {
> >>> +          return ElasticsearchRules.quote(input);
> >>> +        }
> >>> +      });
> >>> +
> >>> +      final String findString = String.join(", ", newList);
> >>> +      query.append("\"_source\" : [").append(findString).append("]");
> >>> +    } else {
> >>> +      // if scripted fields are present, ES ignores _source attribute
> >>> +      for (String field: fields) {
> >>> +        scriptFields.add(ElasticsearchRules.quote(field) +
> >> ":{\"script\": "
> >>> +                // _source (ES2) vs params._source (ES5)
> >>> +                + "\"" +
> >> implementor.elasticsearchTable.scriptedFieldPrefix() + "."
> >>> +                + field + "\"}");
> >>>      }
> >>> +      query.append("\"script_fields\": {" + String.join(", ",
> >> scriptFields) + "}");
> >>>    }
> >>> -    final String findString = Util.toString(findItems, "", ", ", "");
> >>> -    final String scriptFieldString = "\"script_fields\": {"
> >>> -        + Util.toString(scriptFieldItems, "", ", ", "") + "}";
> >>> -    final String fieldString = "\"_source\" : [" + findString + "]"
> >>> -        + ", " + scriptFieldString;
> >>>
> >>>    for (String opfield : implementor.list) {
> >>>      if (opfield.startsWith("\"_source\"")) {
> >>>        implementor.list.remove(opfield);
> >>>      }
> >>>    }
> >>> -    implementor.add(fieldString);
> >>> +    implementor.add(query.toString());
> >>>  }
> >>> }
> >>>
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/pom.xml
> >>> ----------------------------------------------------------------------
> >>> diff --git a/elasticsearch2/pom.xml b/elasticsearch2/pom.xml
> >>> index f24622c..6fbee03 100644
> >>> --- a/elasticsearch2/pom.xml
> >>> +++ b/elasticsearch2/pom.xml
> >>> @@ -73,6 +73,12 @@ limitations under the License.
> >>>      <version>${elasticsearch-java-driver.version}</version>
> >>>    </dependency>
> >>>    <dependency>
> >>> +      <!-- Lang groovy dependency is needed for testing with embedded
> >> ES (scripted fields like loc[0]) -->
> >>> +      <groupId>org.elasticsearch.module</groupId>
> >>> +      <artifactId>lang-groovy</artifactId>
> >>> +      <scope>test</scope>
> >>> +    </dependency>
> >>> +    <dependency>
> >>>      <groupId>com.carrotsearch</groupId>
> >>>      <artifactId>hppc</artifactId>
> >>>      <version>${hppc.version}</version>
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Enumerator.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Enumerator.java
> >>
> b/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Enumerator.java
> >>> index 84370ab..c3d2ac0 100644
> >>> ---
> >>
> a/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Enumerator.java
> >>> +++
> >>
> b/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Enumerator.java
> >>> @@ -26,6 +26,7 @@ import org.elasticsearch.search.SearchHit;
> >>> import java.util.Date;
> >>> import java.util.Iterator;
> >>> import java.util.List;
> >>> +import java.util.Locale;
> >>> import java.util.Map;
> >>>
> >>> /**
> >>> @@ -101,15 +102,18 @@ public class Elasticsearch2Enumerator implements
> >> Enumerator<Object> {
> >>>  private static Function1<SearchHit, Object[]> listGetter(
> >>>      final List<Map.Entry<String, Class>> fields) {
> >>>    return new Function1<SearchHit, Object[]>() {
> >>> -      public Object[] apply(SearchHit searchHitFields) {
> >>> +      public Object[] apply(SearchHit hit) {
> >>>        Object[] objects = new Object[fields.size()];
> >>>        for (int i = 0; i < fields.size(); i++) {
> >>>          final Map.Entry<String, Class> field = fields.get(i);
> >>>          final String name = field.getKey();
> >>> -          if (searchHitFields.fields().isEmpty()) {
> >>> -            objects[i] =
> convert(searchHitFields.getSource().get(name),
> >> field.getValue());
> >>> +          if (hit.fields().isEmpty()) {
> >>> +            objects[i] = convert(hit.getSource().get(name),
> >> field.getValue());
> >>> +          } else if (hit.fields().containsKey(name)) {
> >>> +            objects[i] = convert(hit.field(name).getValue(),
> >> field.getValue());
> >>>          } else {
> >>> -            objects[i] =
> >> convert(searchHitFields.field(name).getValue(), field.getValue());
> >>> +            throw new IllegalStateException(
> >>> +                    String.format(Locale.getDefault(), "No result for
> >> %s", field));
> >>>          }
> >>>        }
> >>>        return objects;
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Schema.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Schema.java
> >>
> b/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Schema.java
> >>> index 668402b..46e3fc5 100644
> >>> ---
> >>
> a/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Schema.java
> >>> +++
> >>
> b/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Schema.java
> >>> @@ -22,6 +22,9 @@ import org.apache.calcite.schema.impl.AbstractSchema;
> >>>
> >>> import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
> >>>
> >>> +import com.google.common.annotations.VisibleForTesting;
> >>> +import com.google.common.base.Preconditions;
> >>> +
> >>> import com.google.common.collect.ImmutableList;
> >>> import com.google.common.collect.ImmutableMap;
> >>>
> >>> @@ -86,6 +89,16 @@ public class Elasticsearch2Schema extends
> >> AbstractSchema
> >>>    }
> >>>  }
> >>>
> >>> +  /**
> >>> +   * Allows schema to be instantiated from existing elastic search
> >> client.
> >>> +   * This constructor is used in tests.
> >>> +   */
> >>> +  @VisibleForTesting
> >>> +  Elasticsearch2Schema(Client client, String index) {
> >>> +    this.client = Preconditions.checkNotNull(client, "client");
> >>> +    this.index = Preconditions.checkNotNull(index, "index");
> >>> +  }
> >>> +
> >>>  @Override protected Map<String, Table> getTableMap() {
> >>>    final ImmutableMap.Builder<String, Table> builder =
> >> ImmutableMap.builder();
> >>>
> >>> @@ -120,7 +133,8 @@ public class Elasticsearch2Schema extends
> >> AbstractSchema
> >>>
> >>>    final List<DiscoveryNode> nodes =
> >> ImmutableList.copyOf(transportClient.connectedNodes());
> >>>    if (nodes.isEmpty()) {
> >>> -      throw new RuntimeException("Cannot connect to any elasticsearch
> >> nodes");
> >>> +      throw new IllegalStateException("Cannot connect to any
> >> elasticsearch node: "
> >>> +              + transportNodes);
> >>>    }
> >>>
> >>>    client = transportClient;
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Table.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Table.java
> >>
> b/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Table.java
> >>> index 636aa5f..2928835 100644
> >>> ---
> >>
> a/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Table.java
> >>> +++
> >>
> b/elasticsearch2/src/main/java/org/apache/calcite/adapter/elasticsearch2/Elasticsearch2Table.java
> >>> @@ -45,8 +45,15 @@ public class Elasticsearch2Table extends
> >> AbstractElasticsearchTable {
> >>>    this.client = client;
> >>>  }
> >>>
> >>> +  /**
> >>> +   * ES version 2.x. To access document attributes ES2 uses {@code
> >> _source.foo} syntax.
> >>> +   */
> >>> +  @Override protected String scriptedFieldPrefix() {
> >>> +    return "_source";
> >>> +  }
> >>> +
> >>>  @Override protected Enumerable<Object> find(String index, List<String>
> >> ops,
> >>> -      List<Map.Entry<String, Class>> fields) {
> >>> +                                              List<Map.Entry<String,
> >> Class>> fields) {
> >>>    final String dbName = index;
> >>>
> >>>    final String queryString = "{" + Util.toString(ops, "", ", ", "") +
> >> "}";
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/ElasticSearch2AdapterTest.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/ElasticSearch2AdapterTest.java
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/ElasticSearch2AdapterTest.java
> >>> new file mode 100644
> >>> index 0000000..287e094
> >>> --- /dev/null
> >>> +++
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/ElasticSearch2AdapterTest.java
> >>> @@ -0,0 +1,395 @@
> >>> +/*
> >>> + * 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.calcite.adapter.elasticsearch2;
> >>> +
> >>> +import org.apache.calcite.jdbc.CalciteConnection;
> >>> +import org.apache.calcite.schema.SchemaPlus;
> >>> +import org.apache.calcite.schema.impl.ViewTable;
> >>> +import org.apache.calcite.schema.impl.ViewTableMacro;
> >>> +import org.apache.calcite.test.CalciteAssert;
> >>> +import org.apache.calcite.test.ElasticChecker;
> >>> +
> >>> +import com.google.common.io.LineProcessor;
> >>> +import com.google.common.io.Resources;
> >>> +
> >>> +import org.elasticsearch.action.bulk.BulkItemResponse;
> >>> +import org.elasticsearch.action.bulk.BulkRequestBuilder;
> >>> +import org.elasticsearch.action.bulk.BulkResponse;
> >>> +import org.elasticsearch.common.xcontent.XContentBuilder;
> >>> +import org.elasticsearch.common.xcontent.XContentFactory;
> >>> +
> >>> +import org.junit.BeforeClass;
> >>> +import org.junit.ClassRule;
> >>> +import org.junit.Test;
> >>> +
> >>> +import java.io.IOException;
> >>> +import java.nio.charset.StandardCharsets;
> >>> +import java.sql.Connection;
> >>> +import java.sql.DriverManager;
> >>> +import java.sql.SQLException;
> >>> +import java.util.Arrays;
> >>> +import java.util.Collections;
> >>> +import java.util.Locale;
> >>> +
> >>> +/**
> >>> + * Set of tests for ES adapter. Uses real instance via {@link
> >> EmbeddedElasticRule}. Document
> >>> + * source is local {@code zips-mini.json} file (located in the
> >> classpath).
> >>> + */
> >>> +public class ElasticSearch2AdapterTest {
> >>> +
> >>> +  @ClassRule //init once for all tests
> >>> +  public static final EmbeddedElasticRule NODE =
> >> EmbeddedElasticRule.create();
> >>> +
> >>> +  private static final String ZIPS = "zips";
> >>> +
> >>> +  /**
> >>> +   * Used to create {@code zips} index and insert some data
> >>> +   */
> >>> +  @BeforeClass
> >>> +  public static void setupInstance() throws Exception {
> >>> +    // define mapping so fields are searchable (term query)
> >>> +    XContentBuilder mapping =
> >> XContentFactory.jsonBuilder().startObject()
> >>> +            .startObject("properties")
> >>> +            .startObject("city").field("type", "string")
> >>> +                  .field("index", "not_analyzed").endObject()
> >>> +            .startObject("state").field("type", "string")
> >>> +                  .field("index", "not_analyzed").endObject()
> >>> +            .startObject("pop").field("type", "long").endObject()
> >>> +            .endObject()
> >>> +            .endObject();
> >>> +
> >>> +    // create index
> >>> +    NODE.client().admin().indices()
> >>> +            .prepareCreate(ZIPS)
> >>> +            .addMapping(ZIPS, mapping)
> >>> +            .get();
> >>> +
> >>> +    BulkRequestBuilder bulk =
> >> NODE.client().prepareBulk().setRefresh(true);
> >>> +
> >>> +    // load records from file
> >>> +
> >>
> Resources.readLines(ElasticSearch2AdapterTest.class.getResource("/zips-mini.json"),
> >>> +            StandardCharsets.UTF_8, new LineProcessor<Void>() {
> >>> +              @Override public boolean processLine(String line) throws
> >> IOException {
> >>> +                line = line.replaceAll("_id", "id"); // _id is a
> >> reserved attribute in ES
> >>> +                bulk.add(NODE.client().prepareIndex(ZIPS,
> >> ZIPS).setSource(line));
> >>> +                return true;
> >>> +              }
> >>> +
> >>> +              @Override public Void getResult() {
> >>> +                return null;
> >>> +              }
> >>> +            });
> >>> +
> >>> +    if (bulk.numberOfActions() == 0) {
> >>> +      throw new IllegalStateException("No records to be indexed");
> >>> +    }
> >>> +
> >>> +    BulkResponse response = bulk.execute().get();
> >>> +
> >>> +    if (response.hasFailures()) {
> >>> +      throw new IllegalStateException(
> >>> +              String.format(Locale.getDefault(), "Failed to populate
> >> %s:\n%s", NODE.httpAddress(),
> >>> +
> >> Arrays.stream(response.getItems()).filter(BulkItemResponse::isFailed)
> >>> +
> >>
> .map(BulkItemResponse::getFailureMessage).findFirst().orElse("<unknown>")));
> >>> +    }
> >>> +
> >>> +  }
> >>> +
> >>> +  private CalciteAssert.ConnectionFactory newConnectionFactory() {
> >>> +    return new CalciteAssert.ConnectionFactory() {
> >>> +      @Override public Connection createConnection() throws
> >> SQLException {
> >>> +        final Connection connection =
> >> DriverManager.getConnection("jdbc:calcite:");
> >>> +        final SchemaPlus root =
> >> connection.unwrap(CalciteConnection.class).getRootSchema();
> >>> +
> >>> +        root.add("elastic", new Elasticsearch2Schema(NODE.client(),
> >> ZIPS));
> >>> +
> >>> +        // add calcite view programmatically
> >>> +        final String viewSql = "select cast(_MAP['city'] AS
> >> varchar(20)) AS \"city\", "
> >>> +               + " cast(_MAP['loc'][0] AS float) AS \"longitude\",\n"
> >>> +               + " cast(_MAP['loc'][1] AS float) AS \"latitude\",\n"
> >>> +              + " cast(_MAP['pop'] AS integer) AS \"pop\", "
> >>> +              +  " cast(_MAP['state'] AS varchar(2)) AS \"state\", "
> >>> +              +  " cast(_MAP['id'] AS varchar(5)) AS \"id\" "
> >>> +              +  "from \"elastic\".\"zips\"";
> >>> +
> >>> +        ViewTableMacro macro = ViewTable.viewMacro(root, viewSql,
> >>> +                Collections.singletonList("elastic"),
> >> Arrays.asList("elastic", "view"), false);
> >>> +        root.add("ZIPS", macro);
> >>> +
> >>> +        return connection;
> >>> +      }
> >>> +    };
> >>> +  }
> >>> +
> >>> +  private CalciteAssert.AssertThat calciteAssert() {
> >>> +    return CalciteAssert.that()
> >>> +            .with(newConnectionFactory());
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Tests using calcite view
> >>> +   */
> >>> +  @Test
> >>> +  public void view() throws Exception {
> >>> +    calciteAssert()
> >>> +          .query("select * from zips where \"city\" = 'BROOKLYN'")
> >>> +          .returns("city=BROOKLYN; longitude=-73.956985;
> >> latitude=40.646694; "
> >>> +                  + "pop=111396; state=NY; id=11226\n")
> >>> +          .returnsCount(1);
> >>> +  }
> >>> +
> >>> +  @Test
> >>> +  public void emptyResult() {
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from zips limit 0")
> >>> +            .returnsCount(0);
> >>> +
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from \"elastic\".\"zips\" where
> >> _MAP['Foo'] = '_MISSING_'")
> >>> +            .returnsCount(0);
> >>> +  }
> >>> +
> >>> +  @Test
> >>> +  public void basic() throws Exception {
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from \"elastic\".\"zips\" where
> >> _MAP['city'] = 'BROOKLYN'")
> >>> +            .returnsCount(1);
> >>> +
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from \"elastic\".\"zips\" where"
> >>> +                    + " _MAP['city'] in ('BROOKLYN', 'WASHINGTON')")
> >>> +            .returnsCount(2);
> >>> +
> >>> +    // lower-case
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from \"elastic\".\"zips\" where "
> >>> +                    + "_MAP['city'] in ('brooklyn', 'Brooklyn',
> >> 'BROOK') ")
> >>> +            .returnsCount(0);
> >>> +
> >>> +    // missing field
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from \"elastic\".\"zips\" where
> >> _MAP['CITY'] = 'BROOKLYN'")
> >>> +            .returnsCount(0);
> >>> +
> >>> +    // limit works
> >>> +    CalciteAssert.that()
> >>> +            .with(newConnectionFactory())
> >>> +            .query("select * from \"elastic\".\"zips\" limit 42")
> >>> +            .returnsCount(42);
> >>> +
> >>> +  }
> >>> +
> >>> +  @Test public void testSort() {
> >>> +    final String explain = "PLAN=ElasticsearchToEnumerableConverter\n"
> >>> +            + "  ElasticsearchSort(sort0=[$4], dir0=[ASC])\n"
> >>> +            + "    ElasticsearchProject(city=[CAST(ITEM($0,
> >> 'city')):VARCHAR(20) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\"], longitude=[CAST(ITEM(ITEM($0, 'loc'),
> >> 0)):FLOAT], latitude=[CAST(ITEM(ITEM($0, 'loc'), 1)):FLOAT],
> >> pop=[CAST(ITEM($0, 'pop')):INTEGER], state=[CAST(ITEM($0,
> >> 'state')):VARCHAR(2) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\"], id=[CAST(ITEM($0, 'id')):VARCHAR(5)
> >> CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\"])\n"
> >>> +            + "      ElasticsearchTableScan(table=[[elastic, zips]])";
> >>> +
> >>> +    calciteAssert()
> >>> +            .query("select * from zips order by \"state\"")
> >>> +            .returnsCount(10)
> >>> +            .explainContains(explain);
> >>> +  }
> >>> +
> >>> +  @Test public void testSortLimit() {
> >>> +    final String sql = "select \"state\", \"id\" from zips\n"
> >>> +            + "order by \"state\", \"id\" offset 2 rows fetch next 3
> >> rows only";
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .returnsUnordered("state=AK; id=99801",
> >>> +                    "state=AL; id=35215",
> >>> +                    "state=AL; id=35401")
> >>> +            .queryContains(
> >>> +                    ElasticChecker.elasticsearchChecker(
> >>> +                            "\"_source\" : [\"state\", \"id\"]",
> >>> +                            "\"sort\": [ {\"state\": \"asc\"},
> {\"id\":
> >> \"asc\"}]",
> >>> +                            "\"from\": 2",
> >>> +                            "\"size\": 3"));
> >>> +  }
> >>> +
> >>> +
> >>> +
> >>> +  @Test public void testOffsetLimit() {
> >>> +    final String sql = "select \"state\", \"id\" from zips\n"
> >>> +            + "offset 2 fetch next 3 rows only";
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .runs()
> >>> +            .queryContains(
> >>> +                    ElasticChecker.elasticsearchChecker(
> >>> +                            "\"from\": 2",
> >>> +                            "\"size\": 3",
> >>> +                            "\"_source\" : [\"state\", \"id\"]"));
> >>> +  }
> >>> +
> >>> +  @Test public void testLimit() {
> >>> +    final String sql = "select \"state\", \"id\" from zips\n"
> >>> +            + "fetch next 3 rows only";
> >>> +
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .runs()
> >>> +            .queryContains(
> >>> +                    ElasticChecker.elasticsearchChecker(
> >>> +                            "\"size\": 3",
> >>> +                            "\"_source\" : [\"state\", \"id\"]"));
> >>> +  }
> >>> +
> >>> +  @Test public void testFilterSort() {
> >>> +    final String sql = "select * from zips\n"
> >>> +            + "where \"state\" = 'CA' and \"id\" >= '70000'\n"
> >>> +            + "order by \"state\", \"id\"";
> >>> +    final String explain = "PLAN=ElasticsearchToEnumerableConverter\n"
> >>> +            + "  ElasticsearchSort(sort0=[$4], sort1=[$5], dir0=[ASC],
> >> dir1=[ASC])\n"
> >>> +            + "    ElasticsearchProject(city=[CAST(ITEM($0,
> >> 'city')):VARCHAR(20) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\"], longitude=[CAST(ITEM(ITEM($0, 'loc'),
> >> 0)):FLOAT], latitude=[CAST(ITEM(ITEM($0, 'loc'), 1)):FLOAT],
> >> pop=[CAST(ITEM($0, 'pop')):INTEGER], state=[CAST(ITEM($0,
> >> 'state')):VARCHAR(2) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\"], id=[CAST(ITEM($0, 'id')):VARCHAR(5)
> >> CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\"])\n"
> >>> +            + "
> ElasticsearchFilter(condition=[AND(=(CAST(ITEM($0,
> >> 'state')):VARCHAR(2) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\", 'CA'), >=(CAST(ITEM($0, 'id')):VARCHAR(5)
> >> CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\",
> >> '70000'))])\n"
> >>> +            + "        ElasticsearchTableScan(table=[[elastic,
> zips]])";
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .returnsOrdered("city=LOS ANGELES; longitude=-118.258189;
> >> latitude=34.007856; "
> >>> +                            + "pop=96074; state=CA; id=90011",
> >>> +                    "city=BELL GARDENS; longitude=-118.17205;
> >> latitude=33.969177; "
> >>> +                            + "pop=99568; state=CA; id=90201",
> >>> +                    "city=NORWALK; longitude=-118.081767;
> >> latitude=33.90564; "
> >>> +                            + "pop=94188; state=CA; id=90650")
> >>> +            .queryContains(
> >>> +                    ElasticChecker.elasticsearchChecker("\"query\" : "
> >>> +                                    +
> >> "{\"constant_score\":{\"filter\":{\"bool\":"
> >>> +                                    +
> >> "{\"must\":[{\"term\":{\"state\":\"CA\"}},"
> >>> +                                    +
> >> "{\"range\":{\"id\":{\"gte\":\"70000\"}}}]}}}}",
> >>> +                            "\"script_fields\":
> >> {\"longitude\":{\"script\":\"_source.loc[0]\"}, "
> >>> +                                    +
> >> "\"latitude\":{\"script\":\"_source.loc[1]\"}, "
> >>> +                                    + "\"city\":{\"script\":
> >> \"_source.city\"}, "
> >>> +                                    + "\"pop\":{\"script\":
> >> \"_source.pop\"}, "
> >>> +                                    + "\"state\":{\"script\":
> >> \"_source.state\"}, "
> >>> +                                    + "\"id\":{\"script\": \"_
> source.id
> >> \"}}",
> >>> +                            "\"sort\": [ {\"state\": \"asc\"},
> {\"id\":
> >> \"asc\"}]"))
> >>> +            .explainContains(explain);
> >>> +  }
> >>> +
> >>> +  @Test public void testFilterSortDesc() {
> >>> +    final String sql = "select * from zips\n"
> >>> +            + "where \"pop\" BETWEEN 95000 AND 100000\n"
> >>> +            + "order by \"state\" desc, \"pop\"";
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .limit(4)
> >>> +            .returnsOrdered(
> >>> +             "city=LOS ANGELES; longitude=-118.258189;
> >> latitude=34.007856; pop=96074; state=CA; id=90011",
> >>> +             "city=BELL GARDENS; longitude=-118.17205;
> >> latitude=33.969177; pop=99568; state=CA; id=90201");
> >>> +  }
> >>> +
> >>> +  @Test public void testFilterRedundant() {
> >>> +    final String sql = "select * from zips\n"
> >>> +            + "where \"state\" > 'CA' and \"state\" < 'AZ' and
> >> \"state\" = 'OK'";
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .runs()
> >>> +            .queryContains(
> >>> +                    ElasticChecker.elasticsearchChecker(""
> >>> +                                    + "\"query\" :
> >> {\"constant_score\":{\"filter\":{\"bool\":"
> >>> +                                    +
> >> "{\"must\":[{\"term\":{\"state\":\"OK\"}}]}}}}",
> >>> +                            "\"script_fields\":
> >> {\"longitude\":{\"script\":\"_source.loc[0]\"}, "
> >>> +                                    +
> >> "\"latitude\":{\"script\":\"_source.loc[1]\"}, "
> >>> +                                    +   "\"city\":{\"script\":
> >> \"_source.city\"}, "
> >>> +                                    +   "\"pop\":{\"script\":
> >> \"_source.pop\"}, \"state\":{\"script\": \"_source.state\"}, "
> >>> +                                    +            "\"id\":{\"script\":
> >> \"_source.id\"}}"
> >>> +                    ));
> >>> +  }
> >>> +
> >>> +  @Test public void testInPlan() {
> >>> +    final String[] searches = {
> >>> +        "\"query\" :
> >> {\"constant_score\":{\"filter\":{\"bool\":{\"should\":"
> >>> +                 +
> >>
> "[{\"bool\":{\"must\":[{\"term\":{\"pop\":96074}}]}},{\"bool\":{\"must\":[{\"term\":"
> >>> +                 + "{\"pop\":99568}}]}}]}}}}",
> >>> +        "\"script_fields\":
> >> {\"longitude\":{\"script\":\"_source.loc[0]\"}, "
> >>> +                 +  "\"latitude\":{\"script\":\"_source.loc[1]\"}, "
> >>> +                 +  "\"city\":{\"script\": \"_source.city\"}, "
> >>> +                 +  "\"pop\":{\"script\": \"_source.pop\"}, "
> >>> +                 +  "\"state\":{\"script\": \"_source.state\"}, "
> >>> +                 +  "\"id\":{\"script\": \"_source.id\"}}"
> >>> +    };
> >>> +
> >>> +    calciteAssert()
> >>> +            .query("select * from zips where \"pop\" in (96074,
> 99568)")
> >>> +            .returnsUnordered(
> >>> +                    "city=BELL GARDENS; longitude=-118.17205;
> >> latitude=33.969177; pop=99568; state=CA; id=90201",
> >>> +                    "city=LOS ANGELES; longitude=-118.258189;
> >> latitude=34.007856; pop=96074; state=CA; id=90011"
> >>> +                    )
> >>> +
> >> .queryContains(ElasticChecker.elasticsearchChecker(searches));
> >>> +  }
> >>> +
> >>> +  @Test public void testZips() {
> >>> +    calciteAssert()
> >>> +         .query("select \"state\", \"city\" from zips")
> >>> +         .returnsCount(10);
> >>> +  }
> >>> +
> >>> +  @Test public void testProject() {
> >>> +    final String sql = "select \"state\", \"city\", 0 as \"zero\"\n"
> >>> +            + "from zips\n"
> >>> +            + "order by \"state\", \"city\"";
> >>> +
> >>> +    calciteAssert()
> >>> +            .query(sql)
> >>> +            .limit(2)
> >>> +            .returnsUnordered("state=AK; city=ANCHORAGE; zero=0",
> >>> +                    "state=AK; city=FAIRBANKS; zero=0")
> >>> +            .queryContains(
> >>> +
> >> ElasticChecker.elasticsearchChecker("\"script_fields\": "
> >>> +                                    + "{\"zero\":{\"script\": \"0\"},
> "
> >>> +                                    + "\"state\":{\"script\":
> >> \"_source.state\"}, "
> >>> +                                    + "\"city\":{\"script\":
> >> \"_source.city\"}}",
> >>> +                            "\"sort\": [ {\"state\": \"asc\"},
> >> {\"city\": \"asc\"}]"));
> >>> +  }
> >>> +
> >>> +  @Test public void testFilter() {
> >>> +    final String explain = "PLAN=ElasticsearchToEnumerableConverter\n"
> >>> +            + "  ElasticsearchProject(state=[CAST(ITEM($0,
> >> 'state')):VARCHAR(2) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\"], city=[CAST(ITEM($0, 'city')):VARCHAR(20)
> >> CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\"])\n"
> >>> +            + "    ElasticsearchFilter(condition=[=(CAST(ITEM($0,
> >> 'state')):VARCHAR(2) CHARACTER SET \"ISO-8859-1\" COLLATE
> >> \"ISO-8859-1$en_US$primary\", 'CA')])\n"
> >>> +            + "      ElasticsearchTableScan(table=[[elastic, zips]])";
> >>> +    calciteAssert()
> >>> +            .query("select \"state\", \"city\" from zips where
> >> \"state\" = 'CA'")
> >>> +            .limit(3)
> >>> +            .returnsUnordered("state=CA; city=BELL GARDENS",
> >>> +                    "state=CA; city=LOS ANGELES",
> >>> +                    "state=CA; city=NORWALK")
> >>> +            .explainContains(explain);
> >>> +  }
> >>> +
> >>> +  @Test public void testFilterReversed() {
> >>> +    calciteAssert()
> >>> +          .query("select \"state\", \"city\" from zips where 'WI' <
> >> \"state\" order by \"city\"")
> >>> +          .limit(2)
> >>> +          .returnsUnordered("state=WV; city=BECKLEY",
> >>> +                    "state=WY; city=CHEYENNE");
> >>> +    calciteAssert()
> >>> +          .query("select \"state\", \"city\" from zips where \"state\"
> >>> 'WI' order by \"city\"")
> >>> +          .limit(2)
> >>> +          .returnsUnordered("state=WV; city=BECKLEY",
> >>> +                    "state=WY; city=CHEYENNE");
> >>> +  }
> >>> +
> >>> +}
> >>> +
> >>> +// End ElasticSearch2AdapterTest.java
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticNode.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticNode.java
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticNode.java
> >>> new file mode 100644
> >>> index 0000000..4474add
> >>> --- /dev/null
> >>> +++
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticNode.java
> >>> @@ -0,0 +1,147 @@
> >>> +/*
> >>> + * 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.calcite.adapter.elasticsearch2;
> >>> +
> >>> +import com.google.common.base.Preconditions;
> >>> +import com.google.common.io.Files;
> >>> +
> >>> +import org.elasticsearch.Version;
> >>> +import org.elasticsearch.action.admin.cluster.node.info.NodeInfo;
> >>> +import org.elasticsearch.action.admin.cluster.node.info
> >> .NodesInfoResponse;
> >>> +import org.elasticsearch.client.Client;
> >>> +import org.elasticsearch.common.settings.Settings;
> >>> +import org.elasticsearch.common.transport.TransportAddress;
> >>> +import org.elasticsearch.node.Node;
> >>> +import org.elasticsearch.node.internal.InternalSettingsPreparer;
> >>> +import org.elasticsearch.plugins.Plugin;
> >>> +import org.elasticsearch.script.groovy.GroovyPlugin;
> >>> +
> >>> +import java.io.File;
> >>> +import java.util.Arrays;
> >>> +import java.util.Collection;
> >>> +import java.util.Collections;
> >>> +
> >>> +/**
> >>> + * Represents a single elastic search node which can run embedded in a
> >> java application.
> >>> + * Intended for unit and integration tests. Settings and plugins are
> >> crafted for Calcite.
> >>> + */
> >>> +class EmbeddedElasticNode implements AutoCloseable {
> >>> +
> >>> +  private final LocalNode node;
> >>> +  private volatile boolean  isStarted;
> >>> +
> >>> +  private EmbeddedElasticNode(LocalNode node) {
> >>> +    this.node = Preconditions.checkNotNull(node, "node");
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Having separate class to expose (protected) constructor which
> >> allows to install
> >>> +   * different plugins. In our case it is {@code GroovyPlugin} for
> >> scripted fields like
> >>> +   * {@code loc[0]} or {@code loc[1]['foo']}.
> >>> +   */
> >>> +  private static class LocalNode extends Node {
> >>> +    private LocalNode(Settings settings, Collection<Class<? extends
> >> Plugin>> classpathPlugins) {
> >>> +      super(InternalSettingsPreparer.prepareEnvironment(settings,
> null),
> >>> +              Version.CURRENT,
> >>> +              classpathPlugins);
> >>> +    }
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Creates an instance with existing settings
> >>> +   */
> >>> +  private static EmbeddedElasticNode create(Settings settings) {
> >>> +    // ensure GroovyPlugin is installed or otherwise scripted fields
> >> would not work
> >>> +    LocalNode node = new LocalNode(settings,
> >> Collections.singleton(GroovyPlugin.class));
> >>> +    return new EmbeddedElasticNode(node);
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Creates elastic node as single member of a cluster. Node will not
> >> be started
> >>> +   * unless {@link #start()} is explicitly called.
> >>> +   */
> >>> +  public static EmbeddedElasticNode create() {
> >>> +    File data = Files.createTempDir();
> >>> +    data.deleteOnExit();
> >>> +    File home = Files.createTempDir();
> >>> +    home.deleteOnExit();
> >>> +
> >>> +    Settings settings = Settings.builder()
> >>> +            .put("node.name", "fake-elastic")
> >>> +            .put("path.home", home.getAbsolutePath())
> >>> +            .put("path.data", data.getAbsolutePath())
> >>> +            .put("script.inline", true)  // requires GroovyPlugin
> >>> +            .put("script.indexed", true) // requires GroovyPlugin
> >>> +            .put("cluster.routing.allocation.disk.threshold_enabled",
> >> false)
> >>> +            .put("node.local", true)
> >>> +            .put("node.data", true)
> >>> +            .put("network.host", "localhost")
> >>> +            .build();
> >>> +
> >>> +    return create(settings);
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Starts current node
> >>> +   */
> >>> +  public void start() {
> >>> +    Preconditions.checkState(!isStarted, "already started");
> >>> +    node.start();
> >>> +    this.isStarted = true;
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Returns current address to connect to with HTTP client.
> >>> +   */
> >>> +  public TransportAddress httpAddress() {
> >>> +    Preconditions.checkState(isStarted, "node is not started");
> >>> +
> >>> +    NodesInfoResponse response =
> >> client().admin().cluster().prepareNodesInfo()
> >>> +            .execute().actionGet();
> >>> +    if (response.getNodes().length != 1) {
> >>> +      throw new IllegalStateException("Expected single node but got "
> >>> +              + response.getNodes().length);
> >>> +    }
> >>> +    NodeInfo node = response.getNodes()[0];
> >>> +    return node.getHttp().address().boundAddresses()[0];
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Exposes elastic
> >>> +   * <a href="
> >>
> https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/transport-client.html
> ">transport
> >> client</a>
> >>> +   *
> >>> +   * (use of HTTP client is preferred).
> >>> +   */
> >>> +  public Client client() {
> >>> +    Preconditions.checkState(isStarted, "node is not started");
> >>> +    return node.client();
> >>> +  }
> >>> +
> >>> +  @Override public void close() throws Exception {
> >>> +    node.close();
> >>> +    // cleanup data dirs
> >>> +    File data = new File(node.settings().get("path.data"));
> >>> +    File home = new File(node.settings().get("path.home"));
> >>> +    for (File file: Arrays.asList(data, home)) {
> >>> +      if (file.exists()) {
> >>> +        file.delete();
> >>> +      }
> >>> +    }
> >>> +  }
> >>> +}
> >>> +
> >>> +// End EmbeddedElasticNode.java
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticRule.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticRule.java
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticRule.java
> >>> new file mode 100644
> >>> index 0000000..a633078
> >>> --- /dev/null
> >>> +++
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/adapter/elasticsearch2/EmbeddedElasticRule.java
> >>> @@ -0,0 +1,97 @@
> >>> +/*
> >>> + * 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.calcite.adapter.elasticsearch2;
> >>> +
> >>> +import com.google.common.base.Preconditions;
> >>> +
> >>> +import org.elasticsearch.client.Client;
> >>> +import org.elasticsearch.common.transport.TransportAddress;
> >>> +import org.junit.rules.ExternalResource;
> >>> +
> >>> +/**
> >>> + * Used to initialize a single elastic node. For performance reasons
> >> (node startup costs),
> >>> + * same instance is usually shared across multiple tests.
> >>> + *
> >>> + * This rule should be used as follows:
> >>> + * <pre>
> >>> + *  {@code
> >>> + *
> >>> + *  public class MyTest {
> >>> + *    @literal @ClassRule
> >>> + *    public static final ElasticSearchRule RULE =
> >> ElasticSearchRule.create();
> >>> + *
> >>> + *    @literal @BeforeClass
> >>> + *    public void setup() {
> >>> + *       // ... populate instance
> >>> + *    }
> >>> + *
> >>> + *    @literal @Test
> >>> + *    public void myTest() {
> >>> + *      TransportAddress address = RULE.httpAddress();
> >>> + *      // ....
> >>> + *    }
> >>> + *  }
> >>> + *  }
> >>> + * </pre>
> >>> + *
> >>> + * @see ExternalResource
> >>> + */
> >>> +class EmbeddedElasticRule extends ExternalResource {
> >>> +
> >>> +  private final EmbeddedElasticNode node;
> >>> +
> >>> +  private EmbeddedElasticRule(EmbeddedElasticNode resource) {
> >>> +    this.node = Preconditions.checkNotNull(resource, "resource");
> >>> +  }
> >>> +
> >>> +  @Override protected void before() throws Throwable {
> >>> +    node.start();
> >>> +  }
> >>> +
> >>> +  @Override protected void after() {
> >>> +    try {
> >>> +      node.close();
> >>> +    } catch (Exception e) {
> >>> +      throw new RuntimeException(e);
> >>> +    }
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Factory method to create this rule.
> >>> +   */
> >>> +  public static EmbeddedElasticRule create() {
> >>> +    return new EmbeddedElasticRule(EmbeddedElasticNode.create());
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * Exposes current ES transport client.
> >>> +   */
> >>> +  Client client() {
> >>> +    return node.client();
> >>> +  }
> >>> +
> >>> +  /**
> >>> +   * HTTP address for rest clients (can be ES native or any other).
> >>> +   */
> >>> +  TransportAddress httpAddress() {
> >>> +    return node.httpAddress();
> >>> +  }
> >>> +
> >>> +
> >>> +}
> >>> +
> >>> +// End EmbeddedElasticRule.java
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/test/java/org/apache/calcite/test/ElasticChecker.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/test/java/org/apache/calcite/test/ElasticChecker.java
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/test/ElasticChecker.java
> >>> new file mode 100644
> >>> index 0000000..21fc491
> >>> --- /dev/null
> >>> +++
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/test/ElasticChecker.java
> >>> @@ -0,0 +1,49 @@
> >>> +/*
> >>> + * 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.calcite.test;
> >>> +
> >>> +import com.google.common.base.Function;
> >>> +
> >>> +import java.util.List;
> >>> +
> >>> +import javax.annotation.Nullable;
> >>> +
> >>> +/**
> >>> + * Internal util methods for ElasticSearch tests
> >>> + */
> >>> +public class ElasticChecker {
> >>> +
> >>> +  private ElasticChecker() {}
> >>> +
> >>> +
> >>> +  /** Returns a function that checks that a particular Elasticsearch
> >> pipeline is
> >>> +   * generated to implement a query. */
> >>> +  public static Function<List, Void> elasticsearchChecker(final
> >> String... strings) {
> >>> +    return new Function<List, Void>() {
> >>> +      @Nullable
> >>> +      @Override public Void apply(@Nullable List actual) {
> >>> +        Object[] actualArray = actual == null || actual.isEmpty() ?
> null
> >>> +            : ((List) actual.get(0)).toArray();
> >>> +        CalciteAssert.assertArrayEqual("expected Elasticsearch query
> >> not found", strings,
> >>> +            actualArray);
> >>> +        return null;
> >>> +      }
> >>> +    };
> >>> +  }
> >>> +}
> >>> +
> >>> +// End ElasticChecker.java
> >>>
> >>>
> >>
> http://git-wip-us.apache.org/repos/asf/calcite/blob/c12cb4b0/elasticsearch2/src/test/java/org/apache/calcite/test/Elasticsearch2AdapterIT.java
> >>> ----------------------------------------------------------------------
> >>> diff --git
> >>
> a/elasticsearch2/src/test/java/org/apache/calcite/test/Elasticsearch2AdapterIT.java
> >>
> b/elasticsearch2/src/test/java/org/apache/calcite/test/Elasticsearch2AdapterIT.java
> >>> deleted file mode 100644
> >>> index 4e0c2b6..0000000
> >>> ---
> >>
> a/elasticsearch2/src/test/java/org/apache/calcite/test/Elasticsearch2AdapterIT.java
> >>> +++ /dev/null
> >>> @@ -1,270 +0,0 @@
> >>> -/*
> >>> - * 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.calcite.test;
> >>> -
> >>> -import org.apache.calcite.util.Util;
> >>> -
> >>> -import com.google.common.base.Function;
> >>> -import com.google.common.collect.ImmutableMap;
> >>> -
> >>> -import org.junit.Test;
> >>> -
> >>> -import java.util.List;
> >>> -import javax.annotation.Nullable;
> >>> -
> >>> -/**
> >>> - * Tests for the {@code org.apache.calcite.adapter.elasticsearch2}
> >> package.
> >>> - *
> >>> - * <p>Before calling this test, you need to populate Elasticsearch, as
> >> follows:
> >>> - *
> >>> - * <blockquote><code>
> >>> - * git clone https://github.com/vlsi/calcite-test-dataset<br>
> >>> - * cd calcite-test-dataset<br>
> >>> - * mvn install
> >>> - * </code></blockquote>
> >>> - *
> >>> - * <p>This will create a virtual machine with Elastic


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