/*
 * 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.eagle.query.aggregate.test;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.eagle.log.base.taggedlog.TaggedLogAPIEntity;
import org.apache.eagle.query.aggregate.BucketQuery;
import org.junit.Assert;
import org.junit.Test;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class TestBucketQuery {
    private static class SampleTaggedLogAPIEntity extends TaggedLogAPIEntity {
        private String description;

        @SuppressWarnings("unused")
        public String getDescription() {
            return description;
        }

        public void setDescription(String description) {
            this.description = description;
        }
    }

    @SuppressWarnings("unchecked")
    @Test
    public void testBucketQuery() {
        SampleTaggedLogAPIEntity e1 = new SampleTaggedLogAPIEntity();
        e1.setTags(new HashMap<String, String>());
        e1.getTags().put("cluster", "cluster1");
        e1.getTags().put("rack", "rack123");
        e1.setDescription("this is description 1");

        SampleTaggedLogAPIEntity e2 = new SampleTaggedLogAPIEntity();
        e2.setTags(new HashMap<String, String>());
        e2.getTags().put("cluster", "cluster1");
        e2.getTags().put("rack", "rack123");
        e2.setDescription("this is description 2");

        List<String> bucketFields = new ArrayList<String>();
        bucketFields.add("cluster");
        int limit = 1;

        BucketQuery query1 = new BucketQuery(bucketFields, limit);
        query1.put(e1);
        query1.put(e2);

        Map<String, Object> map = query1.get();

        List<TaggedLogAPIEntity> o = (List<TaggedLogAPIEntity>)map.get("cluster1");
        Assert.assertEquals(limit, o.size());

        JsonFactory factory = new JsonFactory();
        ObjectMapper mapper = new ObjectMapper(factory);
        mapper.setFilters(TaggedLogAPIEntity.getFilterProvider());
        try {
            String result = mapper.writeValueAsString(map);
            System.out.println(result);
        } catch (Exception ex) {
            ex.printStackTrace();
            Assert.fail("can not serialize bucket query result");
        }

        limit = 2;
        BucketQuery query2 = new BucketQuery(bucketFields, limit);
        query2.put(e1);
        query2.put(e2);
        Map<String, Object> map2 = query2.get();
        o = (List<TaggedLogAPIEntity>)map2.get("cluster1");
        try {
            String result = mapper.writeValueAsString(map2);
            System.out.println(result);
        } catch (Exception ex) {
            ex.printStackTrace();
            Assert.fail("can not serialize bucket query result");
        }
        Assert.assertEquals(limit, o.size());


        SampleTaggedLogAPIEntity e3 = new SampleTaggedLogAPIEntity();
        e3.setTags(new HashMap<String, String>());
        e3.getTags().put("cluster", "cluster1");
        e3.getTags().put("rack", "rack124");
        e3.setDescription("this is description 3");
        bucketFields.add("rack");
        limit = 2;
        BucketQuery query3 = new BucketQuery(bucketFields, limit);
        query3.put(e1);
        query3.put(e2);
        query3.put(e3);
        Map<String, Object> map3 = query3.get();
        Map<String, Object> o3 = (Map<String, Object>)map3.get("cluster1");
        List<TaggedLogAPIEntity> o4 = (List<TaggedLogAPIEntity>)o3.get("rack124");
        Assert.assertEquals(1, o4.size());
        List<TaggedLogAPIEntity> o5 = (List<TaggedLogAPIEntity>)o3.get("rack123");
        Assert.assertEquals(o5.size(), 2);

        try {
            String result = mapper.writeValueAsString(map3);
            System.out.println(result);
        } catch (Exception ex) {
            ex.printStackTrace();
            Assert.fail("can not serialize bucket query result");
        }


        SampleTaggedLogAPIEntity e4 = new SampleTaggedLogAPIEntity();
        e4.setTags(new HashMap<String, String>());
        e4.getTags().put("cluster", "cluster1");
        // rack is set to null
        //		e4.getTags().put("rack", "rack124");
        e4.setDescription("this is description 3");
        limit = 2;
        BucketQuery query4 = new BucketQuery(bucketFields, limit);
        query4.put(e1);
        query4.put(e2);
        query4.put(e3);
        query4.put(e4);
        Map<String, Object> map4 = query4.get();
        Map<String, Object> o6 = (Map<String, Object>)map4.get("cluster1");
        List<TaggedLogAPIEntity> o7 = (List<TaggedLogAPIEntity>)o6.get("rack124");
        Assert.assertEquals(1, o7.size());
        List<TaggedLogAPIEntity> o8 = (List<TaggedLogAPIEntity>)o6.get("rack123");
        Assert.assertEquals(o8.size(), 2);
        List<TaggedLogAPIEntity> o9 = (List<TaggedLogAPIEntity>)o6.get("unassigned");
        Assert.assertEquals(o9.size(), 1);

        try {
            String result = mapper.writeValueAsString(map4);
            System.out.println(result);
        } catch (Exception ex) {
            ex.printStackTrace();
            Assert.fail("can not serialize bucket query result");
        }
    }
}