/*
 * 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.geode.internal.cache.functions;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.CancellationException;

import org.apache.logging.log4j.Logger;

import org.apache.geode.DataSerializable;
import org.apache.geode.DataSerializer;
import org.apache.geode.LogWriter;
import org.apache.geode.cache.CacheFactory;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.control.RebalanceFactory;
import org.apache.geode.cache.control.RebalanceOperation;
import org.apache.geode.cache.control.ResourceManager;
import org.apache.geode.cache.execute.Function;
import org.apache.geode.cache.execute.FunctionContext;
import org.apache.geode.cache.execute.FunctionInvocationTargetException;
import org.apache.geode.cache.execute.RegionFunctionContext;
import org.apache.geode.cache.execute.ResultSender;
import org.apache.geode.cache.partition.PartitionRegionHelper;
import org.apache.geode.cache.server.CacheServer;
import org.apache.geode.distributed.DistributedSystem;
import org.apache.geode.distributed.internal.InternalDistributedSystem;
import org.apache.geode.internal.Assert;
import org.apache.geode.internal.cache.CacheServerImpl;
import org.apache.geode.internal.cache.GemFireCacheImpl;
import org.apache.geode.internal.cache.PartitionedRegion;
import org.apache.geode.internal.cache.execute.InternalFunctionInvocationTargetException;
import org.apache.geode.internal.cache.execute.MyFunctionExecutionException;
import org.apache.geode.internal.cache.execute.RegionFunctionContextImpl;
import org.apache.geode.internal.cache.xmlcache.Declarable2;
import org.apache.geode.logging.internal.log4j.api.LogService;

public class TestFunction<T> implements Function<T>, Declarable2, DataSerializable {
  public static final String TEST_FUNCTION10 = "TestFunction10";
  public static final String TEST_FUNCTION9 = "TestFunction9";
  public static final String TEST_FUNCTION8 = "TestFunction8";
  public static final String TEST_FUNCTION6 = "TestFunction6";
  public static final String TEST_FUNCTION5 = "TestFunction5";
  public static final String TEST_FUNCTION7 = "TestFunction7";
  public static final String TEST_FUNCTION4 = "TestFunction4";
  public static final String TEST_FUNCTION3 = "TestFunction3";
  public static final String TEST_FUNCTION2 = "TestFunction2";
  public static final String TEST_FUNCTION1 = "TestFunction1";
  public static final String TEST_FUNCTION_EXCEPTION = "TestFunctionException";
  public static final String TEST_FUNCTION_ALWAYS_THROWS_EXCEPTION =
      "TestFunctionAlwaysThrowsException";
  public static final String TEST_FUNCTION_RESULT_SENDER = "TestFunctionResultSender";
  public static final String MEMBER_FUNCTION = "MemberFunction";
  public static final String TEST_FUNCTION_SOCKET_TIMEOUT = "SocketTimeOutFunction";
  public static final String TEST_FUNCTION_TIMEOUT = "executeTimeOut";
  public static final String TEST_FUNCTION_HA = "executeFunctionHA";
  public static final String TEST_FUNCTION_NONHA = "executeFunctionNonHA";
  public static final String TEST_FUNCTION_HA_SERVER = "executeFunctionHAOnServer";
  public static final String TEST_FUNCTION_NONHA_SERVER = "executeFunctionNonHAOnServer";
  public static final String TEST_FUNCTION_NONHA_REGION = "executeFunctionNonHAOnRegion";
  public static final String TEST_FUNCTION_HA_REGION = "executeFunctionHAOnRegion";
  public static final String TEST_FUNCTION_REEXECUTE_EXCEPTION =
      "executeFunctionReexecuteException";
  public static final String TEST_FUNCTION_ONSERVER_REEXECUTE_EXCEPTION =
      "executeFunctionReexecuteExceptionOnServer";
  public static final String TEST_FUNCTION_NO_LASTRESULT = "executeFunctionWithoutLastResult";
  public static final String TEST_FUNCTION_LASTRESULT = "executeFunctionWithLastResult";
  public static final String TEST_FUNCTION_SEND_EXCEPTION = "executeFunction_SendException";
  public static final String TEST_FUNCTION_THROW_EXCEPTION = "executeFunction_ThrowException";
  public static final String TEST_FUNCTION_RETURN_ARGS = "executeFunctionToReturnArgs";
  public static final String TEST_FUNCTION_ON_ONE_MEMBER_RETURN_ARGS =
      "executeFunctionOnOneMemberToReturnArgs";
  public static final String TEST_FUNCTION_RUNNING_FOR_LONG_TIME =
      "executeFunctionRunningForLongTime";
  public static final String TEST_FUNCTION_BUCKET_FILTER = "TestFunctionBucketFilter";
  public static final String TEST_FUNCTION_NONHA_NOP = "executeFunctionNoHANop";
  private static final String ID = "id";
  private static final String HAVE_RESULTS = "haveResults";
  private final Properties props;
  private static final String NOACKTEST = "NoAckTest";

  private static int retryCount = 0;
  private static int retryCountForExecuteFunctionReexecuteException = 0;
  private static int firstExecutionCount = 0;

  // Default constructor for Declarable purposes
  public TestFunction() {
    super();
    this.props = new Properties();
  }

  public TestFunction(boolean haveResults, String id) {
    this.props = new Properties();
    this.props.setProperty(HAVE_RESULTS, Boolean.toString(haveResults));
    this.props.setProperty(ID, id);
  }

  public TestFunction(boolean haveResults, String id, boolean hashCodeId) {
    this.props = new Properties();
    this.props.setProperty(HAVE_RESULTS, Boolean.toString(haveResults));
    id = id + hashCode();
    this.props.setProperty(ID, id);
    this.props.setProperty(NOACKTEST, Boolean.toString(hashCodeId));

  }

  /**
   * Application execution implementation
   *
   * @since GemFire 5.8Beta
   */
  @Override
  public void execute(FunctionContext context) {
    String id = this.props.getProperty(ID);
    String noAckTest = this.props.getProperty(NOACKTEST);

    if (id.equals(TEST_FUNCTION1) || id.equals(TEST_FUNCTION_ON_ONE_MEMBER_RETURN_ARGS)) {
      execute1(context);
    } else if (id.equals(TEST_FUNCTION2)) {
      execute2(context);
    } else if (id.equals(TEST_FUNCTION3)) {
      execute3(context);
    } else if ((id.equals(TEST_FUNCTION4)) || (id.equals(TEST_FUNCTION7))) {
      execute4(context);
    } else if ((id.equals(TEST_FUNCTION5)) || (id.equals(TEST_FUNCTION6))) {
      execute5(context);
    } else if (id.equals(TEST_FUNCTION8)) {
      execute8(context);
    } else if (id.equals(TEST_FUNCTION9)) {
      execute9(context);
    } else if (id.equals(TEST_FUNCTION_ALWAYS_THROWS_EXCEPTION)) {
      executeAlwaysException(context);
    } else if (id.equals(TEST_FUNCTION_EXCEPTION)) {
      executeException(context);
    } else if (id.equals(TEST_FUNCTION_REEXECUTE_EXCEPTION)) {
      executeFunctionReexecuteException(context);
    } else if (id.equals(TEST_FUNCTION_RESULT_SENDER)) {
      executeResultSender(context);
    } else if (id.equals(MEMBER_FUNCTION)) {
      executeMemberFunction(context);
    } else if (id.equals(TEST_FUNCTION_TIMEOUT)) {
      executeTimeOut(context);
    } else if (id.equals(TEST_FUNCTION_SOCKET_TIMEOUT)) {
      executeSocketTimeOut(context);
    } else if (id.equals(TEST_FUNCTION_HA)) {
      executeHA(context);
    } else if (id.equals(TEST_FUNCTION_NONHA)) {
      executeHA(context);
    } else if (id.equals(TEST_FUNCTION_HA_SERVER) || id.equals(TEST_FUNCTION_NONHA_SERVER)) {
      executeHAAndNonHAOnServer(context);
    } else if (id.equals(TEST_FUNCTION_NONHA_REGION) || id.equals(TEST_FUNCTION_HA_REGION)) {
      executeHAAndNonHAOnRegion(context);
    } else if (id.equals(TEST_FUNCTION_ONSERVER_REEXECUTE_EXCEPTION)) {
      executeFunctionReexecuteExceptionOnServer(context);
    } else if (id.equals(TEST_FUNCTION_NO_LASTRESULT)) {
      executeWithNoLastResult(context);
    } else if (id.equals(TEST_FUNCTION_SEND_EXCEPTION)) {
      executeWithSendException(context);
    } else if (id.equals(TEST_FUNCTION_THROW_EXCEPTION)) {
      executeWithThrowException(context);
    } else if (id.equals(TEST_FUNCTION_LASTRESULT)) {
      executeWithLastResult(context);
    } else if (id.equals(TEST_FUNCTION_RETURN_ARGS)) {
      executeFunctionReturningArgs(context);
    } else if (id.equals(TEST_FUNCTION_RUNNING_FOR_LONG_TIME)) {
      executeFunctionRunningForLongTime(context);
    } else if (id.equals(TEST_FUNCTION_BUCKET_FILTER)) {
      executeFunctionBucketFilter(context);
    } else if (id.equals(TEST_FUNCTION_NONHA_NOP)) {
      execute1(context);
    } else if (noAckTest.equals("true")) {
      execute1(context);
    }
  }


  private void executeFunctionRunningForLongTime(FunctionContext context) {
    Logger logger = LogService.getLogger();

    try {
      Thread.sleep(2000);
    } catch (InterruptedException e) {
      logger.info("Exception in executeFunctionRunningForLongTime");
    }

    context.getResultSender().lastResult("Ran executeFunctionRunningForLongTime for 2000");
  }

  private void executeFunctionBucketFilter(FunctionContext context) {
    // int bucketIDAsFilter = ((Integer)context.getArguments()).intValue();
    // check if the node contains the bucket passed as filter
    RegionFunctionContextImpl rfc = (RegionFunctionContextImpl) context;
    PartitionedRegion pr = (PartitionedRegion) rfc.getDataSet();
    int[] bucketIDs = rfc.getLocalBucketArray(pr);
    pr.getGemFireCache().getLogger().fine("LOCAL BUCKETSET =" + bucketIDs);
    ResultSender<Integer> rs = context.<Integer>getResultSender();
    if (!pr.getDataStore().areAllBucketsHosted(bucketIDs)) {
      throw new AssertionError("bucket IDs =" + bucketIDs + " not all hosted locally");
    } else {
      for (int i = 1; i < bucketIDs[0]; ++i) {
        rs.sendResult(bucketIDs[i]);
      }
      rs.lastResult(bucketIDs[bucketIDs[0]]);
    }
  }


  private void executeFunctionReturningArgs(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.info("Executing executeFunctionReturningArgs in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (!hasResult()) {
      return;
    }
    Object[] args = (Object[]) context.getArguments();
    if (args != null) {
      context.getResultSender().lastResult(args[0]);
    } else {
      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void execute1(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.info("Executing execute1 in TestFunction on Member : " + ds.getDistributedMember()
        + "with Context : " + context);
    if (!hasResult()) {
      return;
    }
    if (context.getArguments() instanceof Boolean) {
      // context.getResultSender().sendResult();
      context.getResultSender().lastResult(context.getArguments());
    } else if (context.getArguments() instanceof String) {
      /*
       * String key = (String)context.getArguments(); return key;
       */

      context.getResultSender().lastResult(context.getArguments());
    } else if (context.getArguments() instanceof Set) {
      Set origKeys = (Set) context.getArguments();
      ArrayList vals = new ArrayList();
      for (Object val : origKeys) {
        if (val != null) {
          vals.add(val);
        }
      }
      /* return vals; */
      context.getResultSender().lastResult(vals);
    } else {
      /* return Boolean.FALSE; */
      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void execute2(FunctionContext context) {
    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext rfContext = (RegionFunctionContext) context;
      rfContext.getDataSet().getCache().getLogger()
          .info("Executing function :  TestFunction2.execute " + rfContext);
      if (rfContext.getArguments() instanceof Boolean) {
        /* return rfContext.getArguments(); */
        if (hasResult()) {
          rfContext.getResultSender().lastResult(rfContext.getArguments());
        } else {
          rfContext.getDataSet().getCache().getLogger()
              .info("Executing function :  TestFunction2.execute " + rfContext);
          while (!rfContext.getDataSet().isDestroyed()) {
            rfContext.getDataSet().getCache().getLogger().info("For Bug43513 ");
            try {
              Thread.sleep(100);
            } catch (InterruptedException ie) {
              Thread.currentThread().interrupt();
              return;
            }
          }
        }
      } else if (rfContext.getArguments() instanceof String) {
        String key = (String) rfContext.getArguments();
        if (key.equals("TestingTimeOut")) { // for test
                                            // PRFunctionExecutionDUnitTest#testRemoteMultiKeyExecution_timeout
          try {
            Thread.sleep(2000);
          } catch (InterruptedException e) {
            rfContext.getDataSet().getCache().getLogger()
                .warning("Got Exception : Thread Interrupted" + e);
          }
        }
        if (PartitionRegionHelper.isPartitionedRegion(rfContext.getDataSet())) {
          /*
           * return (Serializable)PartitionRegionHelper.getLocalDataForContext(rfContext).get(key);
           */
          rfContext.getResultSender().lastResult(
              PartitionRegionHelper.getLocalDataForContext(rfContext).get(key));
        } else {
          rfContext.getResultSender().lastResult(rfContext.getDataSet().get(key));
        }
        /* return (Serializable)rfContext.getDataSet().get(key); */
      } else if (rfContext.getArguments() instanceof Set) {
        Set origKeys = (Set) rfContext.getArguments();
        ArrayList vals = new ArrayList();
        for (Object key : origKeys) {
          Object val = PartitionRegionHelper.getLocalDataForContext(rfContext).get(key);
          if (val != null) {
            vals.add(val);
          }
        }
        rfContext.getResultSender().lastResult(vals);
        /* return vals; */
      } else if (rfContext.getArguments() instanceof HashMap) {
        HashMap putData = (HashMap) rfContext.getArguments();
        for (Object o : putData.entrySet()) {
          Map.Entry me = (Map.Entry) o;
          rfContext.getDataSet().put(me.getKey(), me.getValue());
        }
        rfContext.getResultSender().lastResult(Boolean.TRUE);
      } else {
        rfContext.getResultSender().lastResult(Boolean.FALSE);
      }
    } else {
      if (hasResult()) {
        context.getResultSender().lastResult(Boolean.FALSE);
      } else {
        DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
        LogWriter logger = ds.getLogWriter();
        logger.info("Executing in TestFunction on Server : " + ds.getDistributedMember()
            + "with Context : " + context);
        while (ds.isConnected()) {
          logger.fine("Just executing function in infinite loop for Bug43513");
          try {
            Thread.sleep(250);
          } catch (InterruptedException e) {
            return;
          }
        }
      }
    }

  }

  private void execute3(FunctionContext context) {

    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext prContext = (RegionFunctionContext) context;
      prContext.getDataSet().getCache().getLogger()
          .info("Executing function : TestFunction3.execute " + prContext);
      if (prContext.getArguments() instanceof Set) {
        Set origKeys = (Set) prContext.getArguments();
        ArrayList vals = new ArrayList();
        for (Object origKey : origKeys) {
          Object val = PartitionRegionHelper.getLocalDataForContext(prContext).get(origKey);
          if (val != null) {
            vals.add(val);
          }
        }
        prContext.getResultSender().lastResult(vals);
        /* return vals; */
      } else if (prContext.getFilter() != null) {
        Set origKeys = prContext.getFilter();
        ArrayList vals = new ArrayList();
        for (Object origKey : origKeys) {
          Object val = PartitionRegionHelper.getLocalDataForContext(prContext).get(origKey);
          if (val != null) {
            vals.add(val);
          }
        }
        prContext.getResultSender().lastResult(vals);
      } else {
        prContext.getResultSender().lastResult(Boolean.FALSE);
      }
    } else {

      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void execute4(FunctionContext context) {

    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext prContext = (RegionFunctionContext) context;
      prContext.getDataSet().getCache().getLogger()
          .info("Executing function :  TestFunction4-7.execute " + prContext);
      if (prContext.getArguments() instanceof Boolean) {
        /* return prContext.getArguments(); */
        if (hasResult())
          prContext.getResultSender().lastResult(prContext.getArguments());
      } else if (prContext.getArguments() instanceof String) {
        String key = (String) prContext.getArguments();
        /* return (Serializable)PartitionRegionHelper.getLocalDataForContext(prContext).get(key); */
        prContext.getResultSender().lastResult(
            PartitionRegionHelper.getLocalDataForContext(prContext).get(key));
      } else if (prContext.getArguments() instanceof Set) {
        Set origKeys = (Set) prContext.getArguments();
        ArrayList vals = new ArrayList();
        for (Object origKey : origKeys) {
          Object val = PartitionRegionHelper.getLocalDataForContext(prContext).get(origKey);
          if (val != null) {
            vals.add(val);
          }
        }
        if (hasResult())
          prContext.getResultSender().lastResult(vals);
      } else if (prContext.getArguments() instanceof HashMap) {
        HashMap putData = (HashMap) prContext.getArguments();
        for (Object o : putData.entrySet()) {
          Map.Entry me = (Map.Entry) o;
          prContext.getDataSet().put(me.getKey(), me.getValue());
        }
        if (hasResult())
          prContext.getResultSender().lastResult(Boolean.TRUE);
      } else {
        if (hasResult())
          prContext.getResultSender().lastResult(Boolean.FALSE);
      }
    } else {
      if (hasResult())
        context.getResultSender().lastResult(Boolean.FALSE);
    }

  }

  private void execute5(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.info("Executing executeException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (this.hasResult()) {
      if (context.getArguments() instanceof String) {
        context.getResultSender().lastResult("Success");
      } else {
        context.getResultSender().lastResult("Failure");
      }
    }
  }


  private void executeMemberFunction(FunctionContext context) {
    if (this.hasResult()) {
      if (context.getArguments() instanceof String) {
        String args = (String) context.getArguments();
        if (!args.equalsIgnoreCase("Key")) {
          Assert.assertTrue(
              args.equals(
                  InternalDistributedSystem.getAnyInstance().getDistributedMember().getId()),
              "Args was supposed to be ["
                  + InternalDistributedSystem.getAnyInstance().getDistributedMember().getId()
                  + "] but was:[" + args + "]");
        }
        context.getResultSender().lastResult("Success");
      } else {
        context.getResultSender().lastResult("Failure");
      }
    }
  }

  private void execute8(FunctionContext context) {
    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext rfContext = (RegionFunctionContext) context;
      rfContext.getDataSet().getCache().getLogger()
          .info("Executing function :  TestFunction8.execute " + rfContext);

      if (rfContext.getArguments() instanceof Boolean) {
        /* return rfContext.getArguments(); */
        // rfContext.getResultSender().sendResult(rfContext.getArguments());
        rfContext.getResultSender().lastResult(rfContext.getArguments());
      } else if (rfContext.getArguments() instanceof String) {
        String op = (String) rfContext.getArguments();
        if (op.equals("DELETE")) {
          Region r = rfContext.getDataSet();
          Set s = rfContext.getFilter();
          if (s == null) {
            rfContext.getResultSender().lastResult(Boolean.FALSE);
          }
          for (Object value : s) {
            r.destroy(value);
          }
          rfContext.getResultSender().lastResult(Boolean.TRUE);
        } else if (op.equals("GET")) {
          Region r = rfContext.getDataSet();
          Set s = rfContext.getFilter();
          if (s == null) {
            rfContext.getResultSender().lastResult(Boolean.FALSE);
          }
          Iterator itr = s.iterator();
          ArrayList vals = new ArrayList();
          while (itr.hasNext()) {
            vals.add(r.get(itr.next()));
          }
          rfContext.getResultSender().lastResult(vals);
        }
        rfContext.getResultSender().lastResult(Boolean.FALSE);
      } else {
        rfContext.getResultSender().lastResult(Boolean.FALSE);
      }
    } else {
      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void execute9(FunctionContext context) {
    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext rfContext = (RegionFunctionContext) context;
      rfContext.getDataSet().getCache().getLogger()
          .info("Executing function :  TestFunction9.execute " + rfContext);
      if (rfContext.getArguments() instanceof Boolean) {
        rfContext.getResultSender().lastResult(rfContext.getArguments());
      } else if (rfContext.getArguments() instanceof String) {
        String key = (String) rfContext.getArguments();
        if (key.equals("TestingTimeOut")) { // for test
                                            // PRFunctionExecutionDUnitTest#testRemoteMultiKeyExecution_timeout
          try {
            synchronized (this) {
              this.wait(2000);
            }
          } catch (InterruptedException e) {
            rfContext.getDataSet().getCache().getLogger()
                .warning("Got Exception : Thread Interrupted" + e);
          }
        }
        if (context instanceof RegionFunctionContext) {
          RegionFunctionContext prContext = (RegionFunctionContext) context;
          if (PartitionRegionHelper.isPartitionedRegion(prContext.getDataSet())) {
            rfContext.getResultSender().lastResult(
                PartitionRegionHelper.getLocalDataForContext(prContext).get(key));
          }
        }
      } else if (rfContext.getArguments() instanceof Set) {
        Set origKeys = (Set) rfContext.getArguments();
        ArrayList vals = new ArrayList();
        for (Iterator i = origKeys.iterator(); i.hasNext();) {
          Object val;
          if (context instanceof RegionFunctionContext) {
            RegionFunctionContext prContext = (RegionFunctionContext) context;
            val = PartitionRegionHelper.getLocalDataForContext(prContext).get(i.next());
          } else {
            val = rfContext.getDataSet().get(i.next());
          }

          if (i.hasNext())
            rfContext.getResultSender().sendResult(val);
          else
            rfContext.getResultSender().lastResult(val);

          if (val != null) {
            vals.add(val);
          }
        }
      } else if (rfContext.getArguments() instanceof HashMap) {
        HashMap putData = (HashMap) rfContext.getArguments();
        for (Object o : putData.entrySet()) {
          Map.Entry me = (Map.Entry) o;
          rfContext.getDataSet().put(me.getKey(), me.getValue());
        }
        rfContext.getResultSender().lastResult(Boolean.TRUE);
      } else {
        rfContext.getResultSender().lastResult(Boolean.TRUE);
      }
    }
    context.getResultSender().lastResult("ABCD");
  }

  private void executeException(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.fine("Executing executeException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (context.getArguments() instanceof Boolean) {
      logger.fine("MyFunctionExecutionException Exception is intentionally thrown");
      throw new MyFunctionExecutionException("I have been thrown from TestFunction");
    } else if (context.getArguments() instanceof String) {
      String key = (String) context.getArguments();
      logger.fine("Result sent back :" + key);
      context.getResultSender().lastResult(key);
    } else if (context.getArguments() instanceof Set) {
      Set origKeys = (Set) context.getArguments();
      ArrayList vals = new ArrayList();
      for (Object val : origKeys) {
        if (val != null) {
          vals.add(val);
        }
      }
      logger.fine("Result sent back :" + vals);
      context.getResultSender().lastResult(vals);
    } else {
      logger.fine("Result sent back :" + Boolean.FALSE);
      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void executeAlwaysException(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.fine("Executing executeException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    logger.fine("MyFunctionExecutionException Exception is intentionally thrown");
    throw new MyFunctionExecutionException("I have been thrown from TestFunction");
  }


  private void executeWithSendException(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.fine("Executing executeWithSendException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (context.getArguments() instanceof Boolean) {
      context.getResultSender()
          .sendException(new MyFunctionExecutionException("I have been send from TestFunction"));
    } else if (context.getArguments() instanceof String) {
      String arg = (String) context.getArguments();
      if (arg.equals("Multiple")) {
        logger.fine("Sending Exception First time");
        context.getResultSender()
            .sendException(new MyFunctionExecutionException("I have been send from TestFunction"));
        logger.fine("Sending Exception Second time");
        context.getResultSender()
            .sendException(new MyFunctionExecutionException("I have been send from TestFunction"));
      }
    } else if (context.getArguments() instanceof Set) {
      Set args = (Set) context.getArguments();
      for (int i = 0; i < args.size(); i++) {
        context.getResultSender().sendResult(i);
      }
      context.getResultSender().sendException(
          new MyFunctionExecutionException("I have been thrown from TestFunction with set"));
    } else {
      logger.fine("Result sent back :" + Boolean.FALSE);
      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void executeWithThrowException(FunctionContext context) {
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    RegionFunctionContext rfContext = (RegionFunctionContext) context;
    LogWriter logger = ds.getLogWriter();
    logger.fine("Executing executeWithThrowException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (context.getArguments() instanceof Boolean) {
      logger.fine("MyFunctionExecutionException Exception is intentionally thrown");
      throw new MyFunctionExecutionException("I have been thrown from TestFunction");
    } else if (rfContext.getArguments() instanceof Set) {
      Set origKeys = (Set) rfContext.getArguments();
      for (Object origKey : origKeys) {
        Region r = PartitionRegionHelper.getLocalDataForContext(rfContext);
        Object key = origKey;
        Object val = r.get(key);
        if (val != null) {
          throw new MyFunctionExecutionException("I have been thrown from TestFunction");
        }
      }
    } else {
      logger.fine("Result sent back :" + Boolean.FALSE);
      rfContext.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private synchronized void executeFunctionReexecuteException(FunctionContext context) {
    retryCountForExecuteFunctionReexecuteException++;
    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.fine("Executing executeException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (retryCountForExecuteFunctionReexecuteException >= 5) {
      logger.fine("Tried Function Execution 5 times. Now Returning after 5 attempts");
      context.getResultSender()
          .lastResult(retryCountForExecuteFunctionReexecuteException);
      retryCountForExecuteFunctionReexecuteException = 0;
      return;
    }
    if (context.getArguments() instanceof Boolean) {
      logger.fine("MyFunctionExecutionException is intentionally thrown");
      throw new FunctionInvocationTargetException(
          new MyFunctionExecutionException("I have been thrown from TestFunction"));
    }
  }

  private void executeResultSender(FunctionContext context) {
    ResultSender resultSender = context.getResultSender();
    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext rfContext = (RegionFunctionContext) context;
      rfContext.getDataSet().getCache().getLogger()
          .info("Executing function :  TestFunctionexecuteResultSender.execute " + rfContext);
      if (rfContext.getArguments() instanceof Boolean) {
        if (this.hasResult()) {
          resultSender.lastResult(rfContext.getArguments());
        }
      } else if (rfContext.getArguments() instanceof Set) {
        Set origKeys = (Set) rfContext.getArguments();
        Object[] objectArray = origKeys.toArray();
        int size = objectArray.length;
        int i = 0;
        for (; i < (size - 1); i++) {
          Object val = PartitionRegionHelper.getLocalDataForContext(rfContext).get(objectArray[i]);
          if (val != null) {
            resultSender.sendResult(val);
          }
        }
        resultSender.lastResult(objectArray[i]);
      } else {
        resultSender.lastResult(Boolean.FALSE);
      }
    } else {
      resultSender.lastResult(Boolean.FALSE);
    }
  }

  private void executeSocketTimeOut(FunctionContext context) {
    try {
      Thread.sleep(15000);
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
    if (context.getArguments() instanceof Boolean) {
      context.getResultSender().lastResult(context.getArguments());
    } else if (context.getArguments() instanceof String) {
      context.getResultSender().lastResult(context.getArguments());
    } else if (context.getArguments() instanceof Set) {
      Set origKeys = (Set) context.getArguments();
      ArrayList vals = new ArrayList();
      for (Object val : origKeys) {
        if (val != null) {
          vals.add(val);
        }
      }
      /* return vals; */
      context.getResultSender().lastResult(vals);
    } else {
      /* return Boolean.FALSE; */
      context.getResultSender().lastResult(Boolean.FALSE);
    }
  }

  private void executeTimeOut(FunctionContext context) {

    try {
      synchronized (this) {
        this.wait(2000);
      }
    } catch (InterruptedException ignored) {

    }
    if (context instanceof RegionFunctionContext) {
      RegionFunctionContext rfContext = (RegionFunctionContext) context;
      rfContext.getDataSet().getCache().getLogger()
          .info("Executing function :  TestFunction.execute " + rfContext);
      if (rfContext.getArguments() instanceof Boolean) {
        /* return rfContext.getArguments(); */
        rfContext.getResultSender().lastResult(rfContext.getArguments());
      } else if (rfContext.getArguments() instanceof String) {
        String key = (String) rfContext.getArguments();
        if (key.equals("TestingTimeOut")) { // for test
                                            // PRFunctionExecutionDUnitTest#testRemoteMultiKeyExecution_timeout
          try {
            synchronized (this) {
              this.wait(2000);
            }
          } catch (InterruptedException e) {
            rfContext.getDataSet().getCache().getLogger()
                .warning("Got Exception : Thread Interrupted" + e);
          }
        }
        try {
          synchronized (this) {
            this.wait(2000);
          }
        } catch (InterruptedException e) {
          rfContext.getDataSet().getCache().getLogger()
              .warning("Got Exception : Thread Interrupted" + e);
        }
        if (PartitionRegionHelper.isPartitionedRegion(rfContext.getDataSet())) {
          /*
           * return (Serializable)PartitionRegionHelper.getLocalDataForContext(rfContext).get(key);
           */
          rfContext.getResultSender().lastResult(
              PartitionRegionHelper.getLocalDataForContext(rfContext).get(key));
        } else {
          rfContext.getResultSender().lastResult(rfContext.getDataSet().get(key));
        }
        /* return (Serializable)rfContext.getDataSet().get(key); */
      } else if (rfContext.getArguments() instanceof Set) {
        Set origKeys = (Set) rfContext.getArguments();
        ArrayList vals = new ArrayList();
        for (Object origKey : origKeys) {
          Object val = PartitionRegionHelper.getLocalDataForContext(rfContext).get(origKey);
          if (val != null) {
            vals.add(val);
          }
        }
        rfContext.getResultSender().lastResult(vals);
        /* return vals; */
      } else if (rfContext.getArguments() instanceof HashMap) {
        HashMap putData = (HashMap) rfContext.getArguments();
        for (Object o : putData.entrySet()) {
          Map.Entry me = (Map.Entry) o;
          rfContext.getDataSet().put(me.getKey(), me.getValue());
        }
        rfContext.getResultSender().lastResult(Boolean.TRUE);
      } else {
        rfContext.getResultSender().lastResult(Boolean.FALSE);
      }
    } else {
      context.getResultSender().lastResult(Boolean.FALSE);
    }

  }

  private void executeHA(FunctionContext context) {
    RegionFunctionContext rcontext = (RegionFunctionContext) context;
    Region region = rcontext.getDataSet();
    region.getCache().getLogger().fine("executeHA#execute( " + rcontext + " )");

    try {
      Thread.sleep(10);
    } catch (InterruptedException e) {
      e.printStackTrace();
    }

    rcontext.getResultSender().lastResult(rcontext.getArguments());
  }

  private void executeHAAndNonHAOnServer(FunctionContext context) {
    List<CacheServer> servers = CacheFactory.getAnyInstance().getCacheServers();
    ArrayList<String> args = (ArrayList<String>) context.getArguments();
    Region r = CacheFactory.getAnyInstance().getRegion(args.get(0));
    String testName = args.get(1);
    Integer numTimesStopped = (Integer) r.get("stopped");
    Integer numTimesSentResult = (Integer) r.get("sentresult");

    if (context.isPossibleDuplicate()) {
      switch (testName) {
        case "serverExecutionHATwoServerDown":
          if ((Integer) r.get("stopped") == 2) {
            if (numTimesSentResult == null) {
              r.put("sentresult", 1);
            } else {
              r.put("sentresult", ++numTimesSentResult);
            }
            context.getResultSender().lastResult(args.get(0));
          } else {
            r.put("stopped", ++numTimesStopped);
            for (CacheServer s : servers) {
              if (((CacheServerImpl) s).getSystem().getDistributedMember()
                  .equals(((GemFireCacheImpl) CacheFactory.getAnyInstance()).getMyId())) {
                s.stop();
                DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
                ds.disconnect();
              }
            }
          }
          break;
        case "serverExecutionHAOneServerDown":
          if (numTimesSentResult == null) {
            r.put("sentresult", 1);
          } else {
            r.put("sentresult", ++numTimesSentResult);
          }
          context.getResultSender().lastResult(args.get(0));
          break;
        default:
          context.getResultSender().lastResult(args.get(0));
          break;
      }
    } else {
      if (numTimesStopped == null) {
        r.put("stopped", 1);
      } else {
        r.put("stopped", ++numTimesStopped);
      }

      for (CacheServer s : servers) {
        if (((CacheServerImpl) s).getSystem().getDistributedMember()
            .equals(((GemFireCacheImpl) CacheFactory.getAnyInstance()).getMyId())) {
          s.stop();
          DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
          ds.disconnect();
        }
      }

    }
  }

  private void executeHAAndNonHAOnRegion(FunctionContext context) {
    List<CacheServer> servers = CacheFactory.getAnyInstance().getCacheServers();
    ArrayList<String> args = (ArrayList<String>) context.getArguments();

    RegionFunctionContext rfContext = (RegionFunctionContext) context;
    rfContext.getDataSet().getCache().getLogger()
        .info("Executing function :  executeHAAndNonHAOnRegion " + rfContext);

    Region r = CacheFactory.getAnyInstance().getRegion(args.get(0));
    String testName = args.get(1);
    Integer numTimesStopped = (Integer) r.get("stopped");
    Integer numTimesSentResult = (Integer) r.get("sentresult");

    if (context.isPossibleDuplicate()) {
      if (testName.equals("regionExecutionHATwoServerDown")) {
        if ((Integer) r.get("stopped") == 2) {
          if (numTimesSentResult == null) {
            r.put("sentresult", 1);
          } else {
            r.put("sentresult", ++numTimesSentResult);
          }
          context.getResultSender().lastResult(args.get(0));
        } else {
          r.put("stopped", ++numTimesStopped);
          for (CacheServer s : servers) {
            if (((CacheServerImpl) s).getSystem().getDistributedMember()
                .equals(((GemFireCacheImpl) CacheFactory.getAnyInstance()).getMyId())) {
              s.stop();
              DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
              ds.disconnect();
            }
          }
        }
      } else if (testName.equals("regionExecutionHAOneServerDown")) {
        if (numTimesSentResult == null) {
          r.put("sentresult", 1);
        } else {
          r.put("sentresult", ++numTimesSentResult);
        }
        context.getResultSender().lastResult(args.get(0));
      } else {
        context.getResultSender().lastResult(args.get(0));
      }
    } else {
      if (numTimesStopped == null) {
        r.put("stopped", 1);
      } else {
        r.put("stopped", ++numTimesStopped);
      }

      for (CacheServer s : servers) {
        if (((CacheServerImpl) s).getSystem().getDistributedMember()
            .equals(((GemFireCacheImpl) CacheFactory.getAnyInstance()).getMyId())) {
          s.stop();
          DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
          ds.disconnect();
        }
      }
      context.getResultSender().lastResult(args.get(0));
    }
  }

  private synchronized void executeFunctionReexecuteExceptionOnServer(FunctionContext context) {
    if (context.isPossibleDuplicate()) {
      retryCount++;
    } else {
      firstExecutionCount++;
    }

    DistributedSystem ds = InternalDistributedSystem.getAnyInstance();
    LogWriter logger = ds.getLogWriter();
    logger.fine("Executing executeException in TestFunction on Member : "
        + ds.getDistributedMember() + "with Context : " + context);
    if (retryCount >= 5) {
      logger.fine("Tried Function Execution 5 times. Now Returning after 5 attempts");
      context.getResultSender().sendResult(firstExecutionCount);
      context.getResultSender().lastResult(retryCount);
      firstExecutionCount = 0;
      retryCount = 0;
      return;
    }
    if (context.getArguments() instanceof Boolean) {
      logger.fine("MyFunctionExecutionException Exception is intentionally thrown");
      throw new InternalFunctionInvocationTargetException(
          new MyFunctionExecutionException("I have been thrown from TestFunction"));
    }
  }

  private void executeWithNoLastResult(FunctionContext context) {
    // add expected exception
    InternalDistributedSystem.getConnectedInstance().getLogWriter()
        .info("<ExpectedException action=add>did not send last result" + "</ExpectedException>");
    context.getResultSender().sendResult(context.getArguments());
  }

  private void executeWithLastResult(FunctionContext context) {
    RegionFunctionContext rfContext = (RegionFunctionContext) context;
    final PartitionedRegion pr = (PartitionedRegion) rfContext.getDataSet();

    ResourceManager resMan = pr.getCache().getResourceManager();
    RebalanceFactory factory = resMan.createRebalanceFactory();
    RebalanceOperation rebalanceOp = factory.start();
    try {
      rebalanceOp.getResults();
    } catch (CancellationException | InterruptedException e) {
      e.printStackTrace();
    }
    context.getResultSender().lastResult(context.getArguments());
  }

  /**
   * Get the function identifier, used by clients to invoke this function
   *
   * @return an object identifying this function
   * @since GemFire 5.8Beta
   */
  @Override
  public String getId() {
    return this.props.getProperty(ID);
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (!(obj instanceof TestFunction)) {
      return false;
    }
    TestFunction function = (TestFunction) obj;
    return this.props.equals(function.getConfig());
  }

  @Override
  public boolean hasResult() {
    return Boolean.valueOf(this.props.getProperty(HAVE_RESULTS));
  }

  /*
   * (non-Javadoc)
   *
   * @see org.apache.geode.internal.cache.xmlcache.Declarable2#getConfig()
   */
  @Override
  public Properties getConfig() {
    return this.props;
  }

  /*
   * (non-Javadoc)
   *
   * @see org.apache.geode.cache.Declarable#init(java.util.Properties)
   */
  @Override
  public void init(Properties props) {
    this.props.putAll(props);
  }

  @Override
  public boolean isHA() {

    if (getId().equals(TEST_FUNCTION10)) {
      return true;
    }
    if (getId().equals(TEST_FUNCTION_NONHA_SERVER) || getId().equals(TEST_FUNCTION_NONHA_REGION)
        || getId().equals(TEST_FUNCTION_NONHA_NOP) || getId().equals(TEST_FUNCTION_NONHA)) {
      return false;
    }
    return Boolean.valueOf(this.props.getProperty(HAVE_RESULTS));
  }

  @Override
  public void toData(DataOutput out) throws IOException {
    DataSerializer.writeHashMap(this.props, out);
  }

  @Override
  public void fromData(DataInput in) throws IOException, ClassNotFoundException {
    Map map = DataSerializer.readHashMap(in);
    if (map != null) {
      for (Object o : map.entrySet()) {
        Map.Entry entry = (Map.Entry) o;
        props.put(entry.getKey(), entry.getValue());
      }
    }
  }
}