content: // 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 com.cloud.upgrade.dao;
  
  import java.io.InputStream;
  import java.io.UnsupportedEncodingException;
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  
  import com.cloud.utils.crypt.DBEncryptionUtil;
  import com.cloud.utils.exception.CloudRuntimeException;
  
  public class Upgrade442to450 extends DbUpgradeAbstractImpl {
  
      @Override
      public String[] getUpgradableVersionRange() {
          return new String[] {"4.4.2", "4.5.0"};
      }
  
      @Override
      public String getUpgradedVersion() {
          return "4.5.0";
      }
  
      @Override
      public boolean supportsRollingUpgrade() {
          return false;
      }
  
      @Override
      public InputStream[] getPrepareScripts() {
          final String scriptFile = "META-INF/db/schema-442to450.sql";
          final InputStream script = Thread.currentThread().getContextClassLoader().getResourceAsStream(scriptFile);
          if (script == null) {
              throw new CloudRuntimeException("Unable to find " + scriptFile);
          }
  
          return new InputStream[] {script};
      }
  
      @Override
      public void performDataMigration(Connection conn) {
          dropInvalidKeyFromStoragePoolTable(conn);
          dropDuplicatedForeignKeyFromAsyncJobTable(conn);
          updateMaxRouterSizeConfig(conn);
          upgradeMemoryOfVirtualRoutervmOffering(conn);
          upgradeMemoryOfInternalLoadBalancervmOffering(conn);
      }
  
      private void updateMaxRouterSizeConfig(Connection conn) {
          String sqlUpdateConfig = "UPDATE `cloud`.`configuration` SET value=? WHERE name='router.ram.size' AND category='Hidden'";
          try (PreparedStatement updatePstmt = conn.prepareStatement(sqlUpdateConfig);){
              String encryptedValue = DBEncryptionUtil.encrypt("256");
              updatePstmt.setBytes(1, encryptedValue.getBytes("UTF-8"));
              updatePstmt.executeUpdate();
          } catch (SQLException e) {
              throw new CloudRuntimeException("Unable to upgrade max ram size of router in config.", e);
          } catch (UnsupportedEncodingException e) {
              throw new CloudRuntimeException("Unable encrypt configuration values ", e);
          }
          logger.debug("Done updating router.ram.size config to 256");
      }
  
      private void upgradeMemoryOfVirtualRoutervmOffering(Connection conn) {
          int newRamSize = 256; //256MB
          long serviceOfferingId = 0;
  
          /**
           * Pick first row in service_offering table which has system vm type as domainrouter. User added offerings would start from 2nd row onwards.
           * We should not update/modify any user-defined offering.
           */
  
          try (
                  PreparedStatement selectPstmt = conn.prepareStatement("SELECT id FROM `cloud`.`service_offering` WHERE vm_type='domainrouter'");
                  PreparedStatement updatePstmt = conn.prepareStatement("UPDATE `cloud`.`service_offering` SET ram_size=? WHERE id=?");
                  ResultSet selectResultSet = selectPstmt.executeQuery();
              ) {
              if(selectResultSet.next()) {
                  serviceOfferingId = selectResultSet.getLong("id");
              }
  
              updatePstmt.setInt(1, newRamSize);
              updatePstmt.setLong(2, serviceOfferingId);
              updatePstmt.executeUpdate();
          } catch (SQLException e) {
              throw new CloudRuntimeException("Unable to upgrade ram_size of service offering for domain router. ", e);
          }
          logger.debug("Done upgrading RAM for service offering of domain router to " + newRamSize);
      }
  
      private void upgradeMemoryOfInternalLoadBalancervmOffering(Connection conn) {
          int newRamSize = 256; //256MB
          long serviceOfferingId = 0;
  
          /**
           * Pick first row in service_offering table which has system vm type as internalloadbalancervm. User added offerings would start from 2nd row onwards.
           * We should not update/modify any user-defined offering.
           */
  
          try (PreparedStatement selectPstmt = conn.prepareStatement("SELECT id FROM `cloud`.`service_offering` WHERE vm_type='internalloadbalancervm'");
               PreparedStatement updatePstmt = conn.prepareStatement("UPDATE `cloud`.`service_offering` SET ram_size=? WHERE id=?");
               ResultSet selectResultSet = selectPstmt.executeQuery()){
              if(selectResultSet.next()) {
                  serviceOfferingId = selectResultSet.getLong("id");
              }
  
              updatePstmt.setInt(1, newRamSize);
              updatePstmt.setLong(2, serviceOfferingId);
              updatePstmt.executeUpdate();
          } catch (SQLException e) {
              throw new CloudRuntimeException("Unable to upgrade ram_size of service offering for internal loadbalancer vm. ", e);
          }
          logger.debug("Done upgrading RAM for service offering of internal loadbalancer vm to " + newRamSize);
      }
  
      @Override
      public InputStream[] getCleanupScripts() {
          final String scriptFile = "META-INF/db/schema-442to450-cleanup.sql";
          final InputStream script = Thread.currentThread().getContextClassLoader().getResourceAsStream(scriptFile);
          if (script == null) {
              throw new CloudRuntimeException("Unable to find " + scriptFile);
          }
  
          return new InputStream[] {script};
      }
  
      private void dropInvalidKeyFromStoragePoolTable(Connection conn) {
          HashMap<String, List<String>> uniqueKeys = new HashMap<String, List<String>>();
          List<String> keys = new ArrayList<String>();
  
          keys.add("id_2");
          uniqueKeys.put("storage_pool", keys);
  
          logger.debug("Dropping id_2 key from storage_pool table");
          for (Map.Entry<String, List<String>> entry: uniqueKeys.entrySet()) {
              DbUpgradeUtils.dropKeysIfExist(conn,entry.getKey(), entry.getValue(), false);
          }
      }
  
      private void dropDuplicatedForeignKeyFromAsyncJobTable(Connection conn) {
          HashMap<String, List<String>> foreignKeys = new HashMap<String, List<String>>();
          List<String> keys = new ArrayList<String>();
  
          keys.add("fk_async_job_join_map__join_job_id");
          foreignKeys.put("async_job_join_map", keys);
  
          logger.debug("Dropping fk_async_job_join_map__join_job_id key from async_job_join_map table");
          for (Map.Entry<String, List<String>> entry: foreignKeys.entrySet()) {
              DbUpgradeUtils.dropKeysIfExist(conn,entry.getKey(), entry.getValue(), true);
          }
      }
  }
  