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 com.cloud.utils.crypt.DBEncryptionUtil;
  import com.cloud.utils.exception.CloudRuntimeException;
  
  public class Upgrade421to430 extends DbUpgradeAbstractImpl {
  
      @Override
      public String[] getUpgradableVersionRange() {
          return new String[] {"4.2.1", "4.3.0"};
      }
  
      @Override
      public String getUpgradedVersion() {
          return "4.3.0";
      }
  
      @Override
      public boolean supportsRollingUpgrade() {
          return false;
      }
  
      @Override
      public InputStream[] getPrepareScripts() {
          final String scriptFile = "META-INF/db/schema-421to430.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) {
          encryptImageStoreDetails(conn);
          upgradeMemoryOfSsvmOffering(conn);
      }
  
      private void upgradeMemoryOfSsvmOffering(Connection conn) {
          int newRamSize = 512; //512MB
          long serviceOfferingId = 0;
  
              /**
               * Pick first row in service_offering table which has system vm type as secondary storage vm. 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='secondarystoragevm'");
                  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 secondary storage vm. ", e);
          }
          logger.debug("Done upgrading RAM for service offering of Secondary Storage VM to " + newRamSize);
      }
  
      private void encryptImageStoreDetails(Connection conn) {
          logger.debug("Encrypting image store details");
          try (
                  PreparedStatement selectPstmt = conn.prepareStatement("select id, value from `cloud`.`image_store_details` where name = 'key' or name = 'secretkey'");
                  ResultSet rs = selectPstmt.executeQuery();
              ) {
              while (rs.next()) {
                  long id = rs.getLong(1);
                  String value = rs.getString(2);
                  if (value == null) {
                      continue;
                  }
                  String encryptedValue = DBEncryptionUtil.encrypt(value);
                  try (PreparedStatement updatePstmt = conn.prepareStatement("update `cloud`.`image_store_details` set value=? where id=?");) {
                      updatePstmt.setBytes(1, encryptedValue.getBytes("UTF-8"));
                      updatePstmt.setLong(2, id);
                      updatePstmt.executeUpdate();
                  }
              }
          } catch (SQLException e) {
              throw new CloudRuntimeException("Unable encrypt image_store_details values ", e);
          } catch (UnsupportedEncodingException e) {
              throw new CloudRuntimeException("Unable encrypt image_store_details values ", e);
          }
          logger.debug("Done encrypting image_store_details");
      }
  
      @Override
      public InputStream[] getCleanupScripts() {
          final String scriptFile = "META-INF/db/schema-421to430-cleanup.sql";
          final InputStream script = Thread.currentThread().getContextClassLoader().getResourceAsStream(scriptFile);
          if (script == null) {
              throw new CloudRuntimeException("Unable to find " + scriptFile);
          }
  
          return new InputStream[] {script};
      }
  
  }
  