/**
    * Copyright 2004-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.hr.time.batch;
  
  import java.util.List;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.log4j.Logger;
  import org.kuali.hr.time.service.base.TkServiceLocator;
  import org.kuali.hr.time.util.TKUtils;
  import org.kuali.hr.time.util.TkConstants;
  
  /**
   * Runs on each worker node, schedules jobs to run on the thread pool.
   */
  public class BatchJobEntryPoller extends Thread  {
      private static final Logger LOG = Logger.getLogger(BatchJobEntryPoller.class);
  
      TkBatchManager manager;
      int secondsToSleep;
      int startupSleep;
      String ipAddress;
  
      public BatchJobEntryPoller(TkBatchManager manager, int sleepSeconds, int startupSleep) {
          this.manager = manager;
          this.secondsToSleep = sleepSeconds;
          this.startupSleep = startupSleep;
          this.ipAddress = TKUtils.getIPNumber();
      }
  
      @Override
      public void run() {
  
          try {
              Thread.sleep(1000 * startupSleep);
          } catch (Exception e) {
              LOG.error(e);
          }
  
          while(true) {
              LOG.debug("Looking for BatchJobEntries to run on '" + this.ipAddress + "'");
              try {
                  //Find any jobs for this ip address that have a status of S
                  List<BatchJobEntry> entries = TkServiceLocator.getBatchJobEntryService().getBatchJobEntries(ipAddress, TkConstants.BATCH_JOB_ENTRY_STATUS.SCHEDULED);
  
                  //Add jobs to the manager
                  for (BatchJobEntry entry : entries) {
                  	BatchJobEntryRunnable batchJobEntryRunnable = getRunnable(entry);
                  	if (batchJobEntryRunnable != null) {
                  		manager.pool.submit(batchJobEntryRunnable);
                  	}
                  }
                  Thread.sleep(1000 * secondsToSleep);
              } catch (Exception e) {
                  LOG.error(e);
              }
          }
      }
  
      private BatchJobEntryRunnable getRunnable(BatchJobEntry entry) {
          BatchJobEntryRunnable bjer = null;
  
          if (StringUtils.equals(entry.getBatchJobName(), TkConstants.BATCH_JOB_NAMES.APPROVE)) {
              LOG.debug("Creating EmployeeApprovalBatchJobRunnable.");
              bjer = new EmployeeApprovalBatchJobRunnable(entry);
          } else if (StringUtils.equals(entry.getBatchJobName(), TkConstants.BATCH_JOB_NAMES.PAY_PERIOD_END)) {
              LOG.debug("Creating PayPeriodEndBatchJobRunnable.");
              bjer = new PayPeriodEndBatchJobRunnable(entry);
          } else if (StringUtils.equals(entry.getBatchJobName(), TkConstants.BATCH_JOB_NAMES.SUPERVISOR_APPROVAL)) {
              LOG.debug("Creating SupervisorApprovalBatchJobRunnable.");
              bjer = new SupervisorApprovalBatchJobRunnable(entry);
          } else if (StringUtils.equals(entry.getBatchJobName(), TkConstants.BATCH_JOB_NAMES.INITIATE)) {
              LOG.debug("Creating InitiateBatchJobRunnable.");
              bjer = new InitiateBatchJobRunnable(entry);
          } else if(StringUtils.equals(entry.getBatchJobName(), TkConstants.BATCH_JOB_NAMES.BATCH_APPROVE_MISSED_PUNCH)) {
              LOG.debug("BatchApproveMissedPunchJobRunnable is not run on a regular basis, skipping...");
          } else {
              LOG.warn("Unknown BatchJobEntryRunnable found in BatchJobEntry table. Unable to create Runnable.");
          }
  
          return bjer;
      }
  
  }