/*
 * 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.
 */
/*
 * IUMJUnitTest.java
 * 
 * @ TASK IUM 4 & IUM 3 Created on April 29, 2005, 10:14 AM
 */
package org.apache.geode.cache.query.functional;

import static org.junit.Assert.fail;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.Set;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import org.apache.geode.cache.Region;
import org.apache.geode.cache.query.CacheUtils;
import org.apache.geode.cache.query.Index;
import org.apache.geode.cache.query.IndexType;
import org.apache.geode.cache.query.Query;
import org.apache.geode.cache.query.QueryService;
import org.apache.geode.cache.query.SelectResults;
import org.apache.geode.cache.query.Struct;
import org.apache.geode.cache.query.Utils;
import org.apache.geode.cache.query.data.Portfolio;
import org.apache.geode.cache.query.data.Position;
import org.apache.geode.cache.query.internal.QueryObserverAdapter;
import org.apache.geode.cache.query.internal.QueryObserverHolder;
import org.apache.geode.cache.query.types.StructType;
import org.apache.geode.test.junit.categories.IntegrationTest;

@Category(IntegrationTest.class)
public class IUMJUnitTest {
  StructType resType1 = null;
  StructType resType2 = null;
  StructType resType3 = null;

  String[] strg1 = null;
  String[] strg2 = null;
  String[] strg3 = null;

  int resSize1 = 0;
  int resSize2 = 0;
  int resSize3 = 0;

  Object valPf1 = null;
  Object valPos1 = null;

  Object valPf2 = null;
  Object valPos2 = null;

  Object valPf3 = null;
  Object valPos3 = null;

  Iterator itert1 = null;
  Iterator itert2 = null;
  Iterator itert3 = null;

  Set set1 = null;
  Set set2 = null;
  Set set3 = null;

  boolean isActive1 = false;
  boolean isActive2 = false;
  boolean isActive3 = true;

  @Before
  public void setUp() throws java.lang.Exception {
    CacheUtils.startCache();
  }

  @After
  public void tearDown() throws java.lang.Exception {
    CacheUtils.closeCache();
  }

  @Test
  public void testComparisonBetnWithAndWithoutIndexCreation() throws Exception {

    Region region = CacheUtils.createRegion("pos", Portfolio.class);

    for (int i = 0; i < 4; i++) {
      region.put("" + i, new Portfolio(i));
    }
    QueryService qs;
    qs = CacheUtils.getQueryService();
    String queries[] = {"SELECT DISTINCT * FROM /pos,  positions.values where status='active'"
        // TASK IUM4
    };
    SelectResults r[][] = new SelectResults[queries.length][2];
    for (int i = 0; i < queries.length; i++) {
      Query q = null;
      try {
        q = CacheUtils.getQueryService().newQuery(queries[i]);
        QueryObserverImpl observer = new QueryObserverImpl();
        QueryObserverHolder.setInstance(observer);
        r[i][0] = (SelectResults) q.execute();

        if (!observer.isIndexesUsed) {
          CacheUtils.log("NO INDEX USED");
        }
      } catch (Exception e) {
        e.printStackTrace();
        fail(q.getQueryString());
      }
    }

    // Create an Index on status and execute the same query again.

    qs = CacheUtils.getQueryService();
    qs.createIndex("statusIndex", IndexType.FUNCTIONAL, "status", "/pos");

    for (int i = 0; i < queries.length; i++) {
      Query q = null;
      try {
        q = CacheUtils.getQueryService().newQuery(queries[i]);
        QueryObserverImpl observer2 = new QueryObserverImpl();
        QueryObserverHolder.setInstance(observer2);
        r[i][1] = (SelectResults) q.execute();

        if (observer2.isIndexesUsed) {
          CacheUtils.log("YES INDEX IS USED!");
        } else {
          fail("Index NOT Used");
        }

      } catch (Exception e) {
        e.printStackTrace();
        fail(q.getQueryString());
      }
    }
    CacheUtils.compareResultsOfWithAndWithoutIndex(r, this);
    // BUG : Types are not Equal in both the cases as when Indexes are used the Iterator Names
    // are getting Overwritten as iter1,iter2 and so on instead of the complied values of the
    // iterator names used in the Query.

    // if ((resType1).equals(resType2)){
    // CacheUtils.log("Both Search Results are of the same Type i.e.--> "+resType1);
    // }else {
    // fail("FAILED:Search result Type is different in both the cases");
    // }
    // if (resSize1==resSize2 || resSize1 != 0 ){
    // CacheUtils.log("Both Search Results are non-zero and of Same Size i.e. Size= "+resSize1);
    // }else {
    // fail("FAILED:Search result Type is different in both the cases");
    // }
    //
  }

  @Test
  public void testWithOutIndexCreatedMultiCondQueryTest() throws Exception {
    Region region = CacheUtils.createRegion("portfolios", Portfolio.class);
    for (int i = 0; i < 4; i++) {
      region.put("" + i, new Portfolio(i));
      // CacheUtils.log(new Portfolio(i));
    }
    CacheUtils.getQueryService();

    String queries[] = {
        "SELECT DISTINCT * from /portfolios pf , pf.positions.values pos where pos.getSecId = 'IBM' and status = 'inactive'"
        // TASK IUM3
    };
    for (int i = 0; i < queries.length; i++) {
      Query q = null;
      try {
        q = CacheUtils.getQueryService().newQuery(queries[i]);
        Object r3 = q.execute();
        resType3 = (StructType) ((SelectResults) r3).getCollectionType().getElementType();
        resSize3 = (((SelectResults) r3).size());
        // CacheUtils.log(resType3);
        strg3 = resType3.getFieldNames();
        // CacheUtils.log(strg3[0]);
        // CacheUtils.log(strg2[1]);

        set3 = (((SelectResults) r3).asSet());
        Iterator iter = set3.iterator();
        while (iter.hasNext()) {
          Struct stc3 = (Struct) iter.next();
          valPf2 = stc3.get(strg3[0]);
          valPos2 = stc3.get(strg3[1]);
          isActive3 = ((Portfolio) stc3.get(strg3[0])).isActive();
          // CacheUtils.log(valPf2);
          // CacheUtils.log(valPos2);
        }

      } catch (Exception e) {
        e.printStackTrace();
        fail(q.getQueryString());
      }
    }

    itert3 = set3.iterator();
    while (itert3.hasNext()) {
      Struct stc3 = (Struct) itert3.next();
      if (!((Position) stc3.get(strg3[1])).secId.equals("IBM"))
        fail("FAILED:  secId found is not IBM");
      if (((Portfolio) stc3.get(strg3[0])).isActive() != false)
        fail("FAILED:Portfolio in Search result is Active");
    }

  }

  class QueryObserverImpl extends QueryObserverAdapter {
    boolean isIndexesUsed = false;
    ArrayList indexesUsed = new ArrayList();

    public void beforeIndexLookup(Index index, int oper, Object key) {
      indexesUsed.add(index.getName());
    }

    public void afterIndexLookup(Collection results) {
      if (results != null) {
        isIndexesUsed = true;
      }
    }
  }
}
