content: /*
   * Copyright (c) 2018, 2021, Oracle and/or its affiliates.
   *
   * This program is free software; you can redistribute it and/or modify it under
   * the terms of the GNU General Public License, version 2.0, as published by the
   * Free Software Foundation.
   *
   * This program is also distributed with certain software (including but not
   * limited to OpenSSL) that is licensed under separate terms, as designated in a
   * particular file or component or in included license documentation. The
   * authors of MySQL hereby grant you an additional permission to link the
   * program and your derivative works with the separately licensed software that
   * they have included with MySQL.
   *
   * Without limiting anything contained in the foregoing, this file, which is
   * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
   * version 1.0, a copy of which can be found at
   * http://oss.oracle.com/licenses/universal-foss-exception.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
   * for more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
   */
  
  package com.mysql.cj.protocol.x;
  
  import java.util.List;
  
  import com.google.protobuf.ByteString;
  import com.google.protobuf.GeneratedMessageV3;
  import com.google.protobuf.InvalidProtocolBufferException;
  import com.google.protobuf.Parser;
  import com.mysql.cj.exceptions.CJCommunicationsException;
  import com.mysql.cj.protocol.ProtocolEntity;
  import com.mysql.cj.protocol.Warning;
  import com.mysql.cj.x.protobuf.MysqlxDatatypes.Scalar;
  import com.mysql.cj.x.protobuf.MysqlxNotice.Frame;
  import com.mysql.cj.x.protobuf.MysqlxNotice.SessionStateChanged;
  import com.mysql.cj.x.protobuf.MysqlxNotice.SessionVariableChanged;
  
  /**
   * ProtocolEntity representing a {@link Notice} message.
   */
  public class Notice implements ProtocolEntity {
  
      public static Notice getInstance(XMessage message) {
          Frame notice = (Frame) message.getMessage();
          switch (notice.getType()) {
              case Frame.Type.WARNING_VALUE:
                  return new XWarning(notice);
  
              case Frame.Type.SESSION_VARIABLE_CHANGED_VALUE:
                  return new XSessionVariableChanged(notice);
  
              case Frame.Type.SESSION_STATE_CHANGED_VALUE:
                  return new XSessionStateChanged(notice);
  
              case Frame.Type.GROUP_REPLICATION_STATE_CHANGED_VALUE:
                  // TODO
                  break;
              default:
                  break;
          }
          return new Notice(notice);
      }
  
      public static final int NoticeScope_Global = 1;
      public static final int NoticeScope_Local = 2;
  
      public static final int NoticeType_WARNING = 1;
      public static final int NoticeType_SESSION_VARIABLE_CHANGED = 2;
      public static final int NoticeType_SESSION_STATE_CHANGED = 3;
      public static final int NoticeType_GROUP_REPLICATION_STATE_CHANGED = 4;
  
      public static final int SessionStateChanged_CURRENT_SCHEMA = 1;
      public static final int SessionStateChanged_ACCOUNT_EXPIRED = 2;
      public static final int SessionStateChanged_GENERATED_INSERT_ID = 3;
      public static final int SessionStateChanged_ROWS_AFFECTED = 4;
      public static final int SessionStateChanged_ROWS_FOUND = 5;
      public static final int SessionStateChanged_ROWS_MATCHED = 6;
      public static final int SessionStateChanged_TRX_COMMITTED = 7;
      public static final int SessionStateChanged_TRX_ROLLEDBACK = 9;
      public static final int SessionStateChanged_PRODUCED_MESSAGE = 10;
      public static final int SessionStateChanged_CLIENT_ID_ASSIGNED = 11;
      public static final int SessionStateChanged_GENERATED_DOCUMENT_IDS = 12;
  
      protected int scope = 0;
      protected int type = 0;
  
      public Notice(Frame frm) {
          this.scope = frm.getScope().getNumber();
          this.type = frm.getType();
      }
  
      public int getType() {
          return this.type;
      }
  
      public int getScope() {
          return this.scope;
      }
  
      @SuppressWarnings("unchecked")
      static <T extends GeneratedMessageV3> T parseNotice(ByteString payload, Class<T> noticeClass) {
          try {
              Parser<T> parser = (Parser<T>) MessageConstants.MESSAGE_CLASS_TO_PARSER.get(noticeClass);
              return parser.parseFrom(payload);
          } catch (InvalidProtocolBufferException ex) {
              throw new CJCommunicationsException(ex);
          }
      }
  
      public static class XWarning extends Notice implements Warning {
  
          private int level;
          private long code;
          private String message;
  
          public XWarning(Frame frm) {
              super(frm);
              com.mysql.cj.x.protobuf.MysqlxNotice.Warning warn = parseNotice(frm.getPayload(), com.mysql.cj.x.protobuf.MysqlxNotice.Warning.class);
              this.level = warn.getLevel().getNumber();
              this.code = Integer.toUnsignedLong(warn.getCode());
              this.message = warn.getMsg();
          }
  
          @Override
          public int getLevel() {
              return this.level;
          }
  
          @Override
          public long getCode() {
              return this.code;
          }
  
          @Override
          public String getMessage() {
              return this.message;
          }
  
      }
  
      public static class XSessionVariableChanged extends Notice {
          private String paramName = null;
          private Scalar value = null;
  
          public XSessionVariableChanged(Frame frm) {
              super(frm);
              SessionVariableChanged svmsg = parseNotice(frm.getPayload(), SessionVariableChanged.class);
              this.paramName = svmsg.getParam();
              this.value = svmsg.getValue();
          }
  
          public String getParamName() {
              return this.paramName;
          }
  
          public Scalar getValue() {
              return this.value;
          }
  
      }
  
      public static class XSessionStateChanged extends Notice {
          private Integer paramType = null;
          private List<Scalar> valueList = null;
  
          public XSessionStateChanged(Frame frm) {
              super(frm);
              SessionStateChanged ssmsg = parseNotice(frm.getPayload(), SessionStateChanged.class);
              this.paramType = ssmsg.getParam().getNumber();
              this.valueList = ssmsg.getValueList();
          }
  
          public Integer getParamType() {
              return this.paramType;
          }
  
          public List<Scalar> getValueList() {
              return this.valueList;
          }
  
          public Scalar getValue() {
              if (this.valueList != null && !this.valueList.isEmpty()) {
                  return this.valueList.get(0);
              }
              return null;
          }
  
      }
  }
  