org.apache.lens.driver.es.QueryTranslationTest.java Source code

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Here is the source code for org.apache.lens.driver.es.QueryTranslationTest.java

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/**
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.lens.driver.es;

import java.io.IOException;

import org.apache.lens.cube.parse.BetweenTimeRangeWriter;
import org.apache.lens.cube.parse.CubeQueryConfUtil;
import org.apache.lens.driver.es.translator.ESVisitor;
import org.apache.lens.server.api.error.LensException;

import org.apache.hadoop.conf.Configuration;

import org.testng.Assert;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import com.google.common.collect.ImmutableList;

public class QueryTranslationTest extends ESDriverTest {

    private static class ValidQuery {
        private final String name;
        private final String hql;
        private final JsonNode expectedJson;

        @JsonCreator
        ValidQuery(@JsonProperty("name") String name, @JsonProperty("hql") String hql,
                @JsonProperty("expectedJson") JsonNode expectedJson) {
            this.name = name;
            this.hql = hql;
            this.expectedJson = expectedJson;
        }
    }

    private static class InvalidQuery {
        private final String name;
        private final String hql;

        @JsonCreator
        InvalidQuery(@JsonProperty("name") String name, @JsonProperty("hql") String hql) {
            this.name = name;
            this.hql = hql;
        }
    }

    private static <T> T loadResource(String resourcePath, Class<T> type) {
        try {
            return OBJECT_MAPPER
                    .readValue(QueryTranslationTest.class.getClassLoader().getResourceAsStream(resourcePath), type);
        } catch (IOException e) {
            throw new RuntimeException("FATAL! Cannot initialize test resource : " + resourcePath);
        }
    }

    public static final String VALID_QUERIES_RESOURCE_PATH = "valid-queries.data";
    public static final String INVALID_QUERIES_RESOURCE_PATH = "invalid-queries.data";
    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
    private static final ImmutableList<ValidQuery> VALID_QUERIES;
    private static final ImmutableList<InvalidQuery> IN_VALID_QUERIES;
    static {
        OBJECT_MAPPER.configure(JsonParser.Feature.ALLOW_COMMENTS, true); // Jackson 1.2+
        VALID_QUERIES = ImmutableList.copyOf(loadResource(VALID_QUERIES_RESOURCE_PATH, ValidQuery[].class));
        IN_VALID_QUERIES = ImmutableList.copyOf(loadResource(INVALID_QUERIES_RESOURCE_PATH, InvalidQuery[].class));
    }

    @BeforeTest
    @Override
    public void beforeTest() throws LensException {
        super.beforeTest();
    }

    @Override
    protected void initializeConfig(Configuration config) {
        config.setInt(ESDriverConfig.TERM_FETCH_SIZE_KEY, 10000);
        config.setInt(ESDriverConfig.QUERY_TIME_OUT_LENS_KEY, 10000);
        config.setInt(ESDriverConfig.MAX_ROW_SIZE_KEY, -1);
        config.setInt(ESDriverConfig.AGGR_BUCKET_SIZE_LENS_KEY, 100);
        config.setStrings(ESDriverConfig.CLIENT_CLASS_KEY, MockClientES.class.getCanonicalName());
        config.setBoolean(CubeQueryConfUtil.FAIL_QUERY_ON_PARTIAL_DATA, false);
        config.setStrings(CubeQueryConfUtil.DRIVER_SUPPORTED_STORAGES, "es_storage");
        config.setStrings(CubeQueryConfUtil.TIME_RANGE_WRITER_CLASS,
                BetweenTimeRangeWriter.class.getCanonicalName());
        config.setStrings(CubeQueryConfUtil.PART_WHERE_CLAUSE_DATE_FORMAT, "yyyy-MM-dd'T'HH:mm:ss");
    }

    @Test
    public void testQueryTranslation() throws LensException {
        for (final ValidQuery query : VALID_QUERIES) {
            Assert.assertEquals(ESVisitor.rewrite(esDriverConfig, query.hql).getQuery(),
                    query.expectedJson.toString(), "Test case '" + query.name + "' failed.");
        }
    }

    @Test
    public void testInvalidQueries() {
        for (final InvalidQuery invalidQuery : IN_VALID_QUERIES) {
            try {
                ESVisitor.rewrite(esDriverConfig, invalidQuery.hql);
                Assert.fail("The invalid query" + invalidQuery.name + "did not suffer any exception");
            } catch (Throwable e) {
                continue;
            }
        }
    }

}