コード例 #1
0
  /**
   * Create a connection info object.
   *
   * @param u the database URL (must start with jdbc:h2:)
   * @param info the connection properties
   */
  public ConnectionInfo(String u, Properties info) {
    u = remapURL(u);
    this.originalURL = u; // originalURL不会再变
    if (!u.startsWith(Constants.START_URL)) { // "jdbc:h2:"
      throw DbException.getInvalidValueException("url", u);
    }
    this.url = u; // url在接下来的代码中会再变,去掉参数
    readProperties(info);
    readSettingsFromURL();
    setUserName(removeProperty("USER", ""));
    convertPasswords();

    // 去掉"jdbc:h2:",比如jdbc:h2:tcp://localhost:9092/test9
    // name = tcp://localhost:9092/test9
    name = url.substring(Constants.START_URL.length());
    parseName();
    String recoverTest = removeProperty("RECOVER_TEST", null);
    if (recoverTest != null) {
      FilePathRec.register();
      try {
        Utils.callStaticMethod("org.h2.store.RecoverTester.init", recoverTest);
      } catch (Exception e) {
        throw DbException.convert(e);
      }
      name = "rec:" + name;
    }
  }
コード例 #2
0
 private void sendError(Throwable t) {
   try {
     SQLException e = DbException.convert(t).getSQLException();
     StringWriter writer = new StringWriter();
     e.printStackTrace(new PrintWriter(writer));
     String trace = writer.toString();
     String message;
     String sql;
     if (e instanceof JdbcSQLException) {
       JdbcSQLException j = (JdbcSQLException) e;
       message = j.getOriginalMessage();
       sql = j.getSQL();
     } else {
       message = e.getMessage();
       sql = null;
     }
     transfer
         .writeInt(SessionRemote.STATUS_ERROR)
         .writeString(e.getSQLState())
         .writeString(message)
         .writeString(sql)
         .writeInt(e.getErrorCode())
         .writeString(trace)
         .flush();
   } catch (Exception e2) {
     if (!transfer.isClosed()) {
       server.traceError(e2);
     }
     // if writing the error does not work, close the connection
     stop = true;
   }
 }
コード例 #3
0
 private static String remapURL(String url) {
   // 比如System.setProperty("h2.urlMap", "E:/H2/my-h2/my-h2-src/my/test/h2.urlMap.properties");
   // 假设url="my.url",那么可以在h2.urlMap.properties中重新映射:
   // my.url=my.url=jdbc:h2:tcp://localhost:9092/test9
   // 最后返回的url实际是jdbc:h2:tcp://localhost:9092/test9
   String urlMap = SysProperties.URL_MAP;
   if (urlMap != null && urlMap.length() > 0) {
     try {
       SortedProperties prop;
       prop = SortedProperties.loadProperties(urlMap);
       String url2 = prop.getProperty(url);
       if (url2 == null) {
         prop.put(url, "");
         prop.store(urlMap);
       } else {
         url2 = url2.trim();
         if (url2.length() > 0) {
           return url2;
         }
       }
     } catch (IOException e) {
       throw DbException.convert(e);
     }
   }
   return url;
 }
コード例 #4
0
 /**
  * Called to flush the output after data has been sent to the server and just before receiving
  * data. This method also reads the status code from the server and throws any exception the
  * server sent.
  *
  * @param transfer the transfer object
  * @throws DbException if the server sent an exception
  * @throws IOException if there is a communication problem between client and server
  */
 public void done(Transfer transfer) throws IOException {
   transfer.flush();
   int status = transfer.readInt();
   if (status == STATUS_ERROR) {
     String sqlstate = transfer.readString();
     String message = transfer.readString();
     String sql = transfer.readString();
     int errorCode = transfer.readInt();
     String stackTrace = transfer.readString();
     JdbcSQLException s =
         new JdbcSQLException(message, sql, sqlstate, errorCode, null, stackTrace);
     if (errorCode == ErrorCode.CONNECTION_BROKEN_1) {
       // allow re-connect
       IOException e = new IOException(s.toString(), s);
       throw e;
     }
     throw DbException.convert(s);
   } else if (status == STATUS_CLOSED) {
     transferList = null;
   } else if (status == STATUS_OK_STATE_CHANGED) {
     sessionStateChanged = true;
   } else if (status == STATUS_OK) {
     // ok
   } else {
     throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, "unexpected status " + status);
   }
 }
コード例 #5
0
ファイル: StringUtils.java プロジェクト: nuxeo/h2database
 /**
  * Encode the string as an URL.
  *
  * @param s the string to encode
  * @return the encoded string
  */
 public static String urlEncode(String s) {
   try {
     return URLEncoder.encode(s, "UTF-8");
   } catch (Exception e) {
     // UnsupportedEncodingException
     throw DbException.convert(e);
   }
 }
コード例 #6
0
 public AggregateFunction getInstance() {
   if (javaClass == null) {
     javaClass = Utils.loadUserClass(className);
   }
   Object obj;
   try {
     obj = javaClass.newInstance();
     AggregateFunction agg = (AggregateFunction) obj;
     return agg;
   } catch (Exception e) {
     throw DbException.convert(e);
   }
 }
コード例 #7
0
 @Override
 public Expression optimize(Session session) {
   userConnection = session.createConnection(false);
   int len = args.length;
   argTypes = new int[len];
   for (int i = 0; i < len; i++) {
     Expression expr = args[i];
     args[i] = expr.optimize(session);
     int type = expr.getType();
     argTypes[i] = type;
   }
   try {
     Aggregate aggregate = getInstance();
     dataType = aggregate.getInternalType(argTypes);
   } catch (SQLException e) {
     throw DbException.convert(e);
   }
   return this;
 }
コード例 #8
0
 /**
  * Open a new (remote or embedded) session.
  *
  * @param openNew whether to open a new session in any case
  * @return the session
  */
 public SessionInterface connectEmbeddedOrServer(boolean openNew) {
   ConnectionInfo ci = connectionInfo;
   if (ci.isRemote()) {
     connectServer(ci);
     return this;
   }
   // create the session using reflection,
   // so that the JDBC layer can be compiled without it
   boolean autoServerMode = Boolean.parseBoolean(ci.getProperty("AUTO_SERVER", "false"));
   ConnectionInfo backup = null;
   try {
     if (autoServerMode) {
       backup = ci.clone();
       connectionInfo = ci.clone();
     }
     if (openNew) {
       ci.setProperty("OPEN_NEW", "true");
     }
     if (sessionFactory == null) {
       sessionFactory =
           (SessionFactory)
               Class.forName("org.h2.engine.Engine").getMethod("getInstance").invoke(null);
     }
     return sessionFactory.createSession(ci);
   } catch (Exception re) {
     DbException e = DbException.convert(re);
     if (e.getErrorCode() == ErrorCode.DATABASE_ALREADY_OPEN_1) {
       if (autoServerMode) {
         String serverKey = ((JdbcSQLException) e.getSQLException()).getSQL();
         if (serverKey != null) {
           backup.setServerKey(serverKey);
           // OPEN_NEW must be removed now, otherwise
           // opening a session with AUTO_SERVER fails
           // if another connection is already open
           backup.removeProperty("OPEN_NEW", null);
           connectServer(backup);
           return this;
         }
       }
     }
     throw e;
   }
 }
コード例 #9
0
 @Override
 public Value getValue(Session session) {
   HashMap<Expression, Object> group = select.getCurrentGroup();
   if (group == null) {
     throw DbException.get(ErrorCode.INVALID_USE_OF_AGGREGATE_FUNCTION_1, getSQL());
   }
   try {
     Aggregate agg = (Aggregate) group.get(this);
     if (agg == null) {
       agg = getInstance();
     }
     Object obj = agg.getResult();
     if (obj == null) {
       return ValueNull.INSTANCE;
     }
     return DataType.convertToValue(session, obj, dataType);
   } catch (SQLException e) {
     throw DbException.convert(e);
   }
 }
コード例 #10
0
  @Override
  public void updateAggregate(Session session) {
    HashMap<Expression, Object> group = select.getCurrentGroup();
    if (group == null) {
      // this is a different level (the enclosing query)
      return;
    }

    int groupRowId = select.getCurrentGroupRowId();
    if (lastGroupRowId == groupRowId) {
      // already visited
      return;
    }
    lastGroupRowId = groupRowId;

    Aggregate agg = (Aggregate) group.get(this);
    try {
      if (agg == null) {
        agg = getInstance();
        group.put(this, agg);
      }
      Object[] argValues = new Object[args.length];
      Object arg = null;
      for (int i = 0, len = args.length; i < len; i++) {
        Value v = args[i].getValue(session);
        v = v.convertTo(argTypes[i]);
        arg = v.getObject();
        argValues[i] = arg;
      }
      if (args.length == 1) {
        agg.add(arg);
      } else {
        agg.add(argValues);
      }
    } catch (SQLException e) {
      throw DbException.convert(e);
    }
  }
コード例 #11
0
 private void initJavaObjectSerializer() {
   if (javaObjectSerializerInitialized) {
     return;
   }
   synchronized (this) {
     if (javaObjectSerializerInitialized) {
       return;
     }
     String serializerFQN = readSerializationSettings();
     if (serializerFQN != null) {
       serializerFQN = serializerFQN.trim();
       if (!serializerFQN.isEmpty() && !serializerFQN.equals("null")) {
         try {
           javaObjectSerializer =
               (JavaObjectSerializer) JdbcUtils.loadUserClass(serializerFQN).newInstance();
         } catch (Exception e) {
           throw DbException.convert(e);
         }
       }
     }
     javaObjectSerializerInitialized = true;
   }
 }
コード例 #12
0
ファイル: Data.java プロジェクト: Blaise170/ChargingHorses
 /**
  * Calculate the number of bytes required to encode the given value.
  *
  * @param v the value
  * @param handler the data handler for lobs
  * @return the number of bytes required to store this value
  */
 public static int getValueLen(Value v, DataHandler handler) {
   if (v == ValueNull.INSTANCE) {
     return 1;
   }
   switch (v.getType()) {
     case Value.BOOLEAN:
       return 1;
     case Value.BYTE:
       return 2;
     case Value.SHORT:
       return 3;
     case Value.INT:
       {
         int x = v.getInt();
         if (x < 0) {
           return 1 + getVarIntLen(-x);
         } else if (x < 16) {
           return 1;
         } else {
           return 1 + getVarIntLen(x);
         }
       }
     case Value.LONG:
       {
         long x = v.getLong();
         if (x < 0) {
           return 1 + getVarLongLen(-x);
         } else if (x < 8) {
           return 1;
         } else {
           return 1 + getVarLongLen(x);
         }
       }
     case Value.DOUBLE:
       {
         double x = v.getDouble();
         if (x == 1.0d) {
           return 1;
         }
         long d = Double.doubleToLongBits(x);
         if (d == ValueDouble.ZERO_BITS) {
           return 1;
         }
         return 1 + getVarLongLen(Long.reverse(d));
       }
     case Value.FLOAT:
       {
         float x = v.getFloat();
         if (x == 1.0f) {
           return 1;
         }
         int f = Float.floatToIntBits(x);
         if (f == ValueFloat.ZERO_BITS) {
           return 1;
         }
         return 1 + getVarIntLen(Integer.reverse(f));
       }
     case Value.STRING:
       {
         String s = v.getString();
         int len = s.length();
         if (len < 32) {
           return 1 + getStringWithoutLengthLen(s, len);
         }
         return 1 + getStringLen(s);
       }
     case Value.STRING_IGNORECASE:
     case Value.STRING_FIXED:
       return 1 + getStringLen(v.getString());
     case Value.DECIMAL:
       {
         BigDecimal x = v.getBigDecimal();
         if (BigDecimal.ZERO.equals(x)) {
           return 1;
         } else if (BigDecimal.ONE.equals(x)) {
           return 1;
         }
         int scale = x.scale();
         BigInteger b = x.unscaledValue();
         int bits = b.bitLength();
         if (bits <= 63) {
           if (scale == 0) {
             return 1 + getVarLongLen(b.longValue());
           }
           return 1 + getVarIntLen(scale) + getVarLongLen(b.longValue());
         }
         byte[] bytes = b.toByteArray();
         return 1 + getVarIntLen(scale) + getVarIntLen(bytes.length) + bytes.length;
       }
     case Value.TIME:
       if (SysProperties.STORE_LOCAL_TIME) {
         long nanos = ((ValueTime) v).getNanos();
         long millis = nanos / 1000000;
         nanos -= millis * 1000000;
         return 1 + getVarLongLen(millis) + getVarLongLen(nanos);
       }
       return 1 + getVarLongLen(DateTimeUtils.getTimeLocalWithoutDst(v.getTime()));
     case Value.DATE:
       {
         if (SysProperties.STORE_LOCAL_TIME) {
           long dateValue = ((ValueDate) v).getDateValue();
           return 1 + getVarLongLen(dateValue);
         }
         long x = DateTimeUtils.getTimeLocalWithoutDst(v.getDate());
         return 1 + getVarLongLen(x / MILLIS_PER_MINUTE);
       }
     case Value.TIMESTAMP:
       {
         if (SysProperties.STORE_LOCAL_TIME) {
           ValueTimestamp ts = (ValueTimestamp) v;
           long dateValue = ts.getDateValue();
           long nanos = ts.getNanos();
           long millis = nanos / 1000000;
           nanos -= millis * 1000000;
           return 1 + getVarLongLen(dateValue) + getVarLongLen(millis) + getVarLongLen(nanos);
         }
         Timestamp ts = v.getTimestamp();
         return 1
             + getVarLongLen(DateTimeUtils.getTimeLocalWithoutDst(ts))
             + getVarIntLen(ts.getNanos());
       }
     case Value.GEOMETRY:
     case Value.JAVA_OBJECT:
       {
         byte[] b = v.getBytesNoCopy();
         return 1 + getVarIntLen(b.length) + b.length;
       }
     case Value.BYTES:
       {
         byte[] b = v.getBytesNoCopy();
         int len = b.length;
         if (len < 32) {
           return 1 + b.length;
         }
         return 1 + getVarIntLen(b.length) + b.length;
       }
     case Value.UUID:
       return 1 + LENGTH_LONG + LENGTH_LONG;
     case Value.BLOB:
     case Value.CLOB:
       {
         int len = 1;
         if (v instanceof ValueLob) {
           ValueLob lob = (ValueLob) v;
           lob.convertToFileIfRequired(handler);
           byte[] small = lob.getSmall();
           if (small == null) {
             int t = -1;
             if (!lob.isLinked()) {
               t = -2;
             }
             len += getVarIntLen(t);
             len += getVarIntLen(lob.getTableId());
             len += getVarIntLen(lob.getObjectId());
             len += getVarLongLen(lob.getPrecision());
             len += 1;
             if (t == -2) {
               len += getStringLen(lob.getFileName());
             }
           } else {
             len += getVarIntLen(small.length);
             len += small.length;
           }
         } else {
           ValueLobDb lob = (ValueLobDb) v;
           byte[] small = lob.getSmall();
           if (small == null) {
             len += getVarIntLen(-3);
             len += getVarIntLen(lob.getTableId());
             len += getVarLongLen(lob.getLobId());
             len += getVarLongLen(lob.getPrecision());
           } else {
             len += getVarIntLen(small.length);
             len += small.length;
           }
         }
         return len;
       }
     case Value.ARRAY:
       {
         Value[] list = ((ValueArray) v).getList();
         int len = 1 + getVarIntLen(list.length);
         for (Value x : list) {
           len += getValueLen(x, handler);
         }
         return len;
       }
     case Value.RESULT_SET:
       {
         int len = 1;
         try {
           ResultSet rs = ((ValueResultSet) v).getResultSet();
           rs.beforeFirst();
           ResultSetMetaData meta = rs.getMetaData();
           int columnCount = meta.getColumnCount();
           len += getVarIntLen(columnCount);
           for (int i = 0; i < columnCount; i++) {
             len += getStringLen(meta.getColumnName(i + 1));
             len += getVarIntLen(meta.getColumnType(i + 1));
             len += getVarIntLen(meta.getPrecision(i + 1));
             len += getVarIntLen(meta.getScale(i + 1));
           }
           while (rs.next()) {
             len++;
             for (int i = 0; i < columnCount; i++) {
               int t = DataType.getValueTypeFromResultSet(meta, i + 1);
               Value val = DataType.readValue(null, rs, i + 1, t);
               len += getValueLen(val, handler);
             }
           }
           len++;
           rs.beforeFirst();
         } catch (SQLException e) {
           throw DbException.convert(e);
         }
         return len;
       }
     default:
       throw DbException.throwInternalError("type=" + v.getType());
   }
 }
コード例 #13
0
ファイル: Data.java プロジェクト: Blaise170/ChargingHorses
 /**
  * Append a value.
  *
  * @param v the value
  */
 public void writeValue(Value v) {
   int start = pos;
   if (v == ValueNull.INSTANCE) {
     data[pos++] = 0;
     return;
   }
   int type = v.getType();
   switch (type) {
     case Value.BOOLEAN:
       writeByte((byte) (v.getBoolean().booleanValue() ? BOOLEAN_TRUE : BOOLEAN_FALSE));
       break;
     case Value.BYTE:
       writeByte((byte) type);
       writeByte(v.getByte());
       break;
     case Value.SHORT:
       writeByte((byte) type);
       writeShortInt(v.getShort());
       break;
     case Value.INT:
       {
         int x = v.getInt();
         if (x < 0) {
           writeByte((byte) INT_NEG);
           writeVarInt(-x);
         } else if (x < 16) {
           writeByte((byte) (INT_0_15 + x));
         } else {
           writeByte((byte) type);
           writeVarInt(x);
         }
         break;
       }
     case Value.LONG:
       {
         long x = v.getLong();
         if (x < 0) {
           writeByte((byte) LONG_NEG);
           writeVarLong(-x);
         } else if (x < 8) {
           writeByte((byte) (LONG_0_7 + x));
         } else {
           writeByte((byte) type);
           writeVarLong(x);
         }
         break;
       }
     case Value.DECIMAL:
       {
         BigDecimal x = v.getBigDecimal();
         if (BigDecimal.ZERO.equals(x)) {
           writeByte((byte) DECIMAL_0_1);
         } else if (BigDecimal.ONE.equals(x)) {
           writeByte((byte) (DECIMAL_0_1 + 1));
         } else {
           int scale = x.scale();
           BigInteger b = x.unscaledValue();
           int bits = b.bitLength();
           if (bits <= 63) {
             if (scale == 0) {
               writeByte((byte) DECIMAL_SMALL_0);
               writeVarLong(b.longValue());
             } else {
               writeByte((byte) DECIMAL_SMALL);
               writeVarInt(scale);
               writeVarLong(b.longValue());
             }
           } else {
             writeByte((byte) type);
             writeVarInt(scale);
             byte[] bytes = b.toByteArray();
             writeVarInt(bytes.length);
             write(bytes, 0, bytes.length);
           }
         }
         break;
       }
     case Value.TIME:
       if (SysProperties.STORE_LOCAL_TIME) {
         writeByte((byte) LOCAL_TIME);
         ValueTime t = (ValueTime) v;
         long nanos = t.getNanos();
         long millis = nanos / 1000000;
         nanos -= millis * 1000000;
         writeVarLong(millis);
         writeVarLong(nanos);
       } else {
         writeByte((byte) type);
         writeVarLong(DateTimeUtils.getTimeLocalWithoutDst(v.getTime()));
       }
       break;
     case Value.DATE:
       {
         if (SysProperties.STORE_LOCAL_TIME) {
           writeByte((byte) LOCAL_DATE);
           long x = ((ValueDate) v).getDateValue();
           writeVarLong(x);
         } else {
           writeByte((byte) type);
           long x = DateTimeUtils.getTimeLocalWithoutDst(v.getDate());
           writeVarLong(x / MILLIS_PER_MINUTE);
         }
         break;
       }
     case Value.TIMESTAMP:
       {
         if (SysProperties.STORE_LOCAL_TIME) {
           writeByte((byte) LOCAL_TIMESTAMP);
           ValueTimestamp ts = (ValueTimestamp) v;
           long dateValue = ts.getDateValue();
           writeVarLong(dateValue);
           long nanos = ts.getNanos();
           long millis = nanos / 1000000;
           nanos -= millis * 1000000;
           writeVarLong(millis);
           writeVarLong(nanos);
         } else {
           Timestamp ts = v.getTimestamp();
           writeByte((byte) type);
           writeVarLong(DateTimeUtils.getTimeLocalWithoutDst(ts));
           writeVarInt(ts.getNanos());
         }
         break;
       }
     case Value.GEOMETRY:
     case Value.JAVA_OBJECT:
       {
         writeByte((byte) type);
         byte[] b = v.getBytesNoCopy();
         int len = b.length;
         writeVarInt(len);
         write(b, 0, len);
         break;
       }
     case Value.BYTES:
       {
         byte[] b = v.getBytesNoCopy();
         int len = b.length;
         if (len < 32) {
           writeByte((byte) (BYTES_0_31 + len));
           write(b, 0, len);
         } else {
           writeByte((byte) type);
           writeVarInt(len);
           write(b, 0, len);
         }
         break;
       }
     case Value.UUID:
       {
         writeByte((byte) type);
         ValueUuid uuid = (ValueUuid) v;
         writeLong(uuid.getHigh());
         writeLong(uuid.getLow());
         break;
       }
     case Value.STRING:
       {
         String s = v.getString();
         int len = s.length();
         if (len < 32) {
           writeByte((byte) (STRING_0_31 + len));
           writeStringWithoutLength(s, len);
         } else {
           writeByte((byte) type);
           writeString(s);
         }
         break;
       }
     case Value.STRING_IGNORECASE:
     case Value.STRING_FIXED:
       writeByte((byte) type);
       writeString(v.getString());
       break;
     case Value.DOUBLE:
       {
         double x = v.getDouble();
         if (x == 1.0d) {
           writeByte((byte) (DOUBLE_0_1 + 1));
         } else {
           long d = Double.doubleToLongBits(x);
           if (d == ValueDouble.ZERO_BITS) {
             writeByte((byte) DOUBLE_0_1);
           } else {
             writeByte((byte) type);
             writeVarLong(Long.reverse(d));
           }
         }
         break;
       }
     case Value.FLOAT:
       {
         float x = v.getFloat();
         if (x == 1.0f) {
           writeByte((byte) (FLOAT_0_1 + 1));
         } else {
           int f = Float.floatToIntBits(x);
           if (f == ValueFloat.ZERO_BITS) {
             writeByte((byte) FLOAT_0_1);
           } else {
             writeByte((byte) type);
             writeVarInt(Integer.reverse(f));
           }
         }
         break;
       }
     case Value.BLOB:
     case Value.CLOB:
       {
         writeByte((byte) type);
         if (v instanceof ValueLob) {
           ValueLob lob = (ValueLob) v;
           lob.convertToFileIfRequired(handler);
           byte[] small = lob.getSmall();
           if (small == null) {
             int t = -1;
             if (!lob.isLinked()) {
               t = -2;
             }
             writeVarInt(t);
             writeVarInt(lob.getTableId());
             writeVarInt(lob.getObjectId());
             writeVarLong(lob.getPrecision());
             writeByte((byte) (lob.isCompressed() ? 1 : 0));
             if (t == -2) {
               writeString(lob.getFileName());
             }
           } else {
             writeVarInt(small.length);
             write(small, 0, small.length);
           }
         } else {
           ValueLobDb lob = (ValueLobDb) v;
           byte[] small = lob.getSmall();
           if (small == null) {
             writeVarInt(-3);
             writeVarInt(lob.getTableId());
             writeVarLong(lob.getLobId());
             writeVarLong(lob.getPrecision());
           } else {
             writeVarInt(small.length);
             write(small, 0, small.length);
           }
         }
         break;
       }
     case Value.ARRAY:
       {
         writeByte((byte) type);
         Value[] list = ((ValueArray) v).getList();
         writeVarInt(list.length);
         for (Value x : list) {
           writeValue(x);
         }
         break;
       }
     case Value.RESULT_SET:
       {
         writeByte((byte) type);
         try {
           ResultSet rs = ((ValueResultSet) v).getResultSet();
           rs.beforeFirst();
           ResultSetMetaData meta = rs.getMetaData();
           int columnCount = meta.getColumnCount();
           writeVarInt(columnCount);
           for (int i = 0; i < columnCount; i++) {
             writeString(meta.getColumnName(i + 1));
             writeVarInt(meta.getColumnType(i + 1));
             writeVarInt(meta.getPrecision(i + 1));
             writeVarInt(meta.getScale(i + 1));
           }
           while (rs.next()) {
             writeByte((byte) 1);
             for (int i = 0; i < columnCount; i++) {
               int t = DataType.getValueTypeFromResultSet(meta, i + 1);
               Value val = DataType.readValue(null, rs, i + 1, t);
               writeValue(val);
             }
           }
           writeByte((byte) 0);
           rs.beforeFirst();
         } catch (SQLException e) {
           throw DbException.convert(e);
         }
         break;
       }
     default:
       DbException.throwInternalError("type=" + v.getType());
   }
   if (SysProperties.CHECK2) {
     if (pos - start != getValueLen(v, handler)) {
       throw DbException.throwInternalError(
           "value size error: got " + (pos - start) + " expected " + getValueLen(v, handler));
     }
   }
 }
コード例 #14
0
 private void connectServer(ConnectionInfo ci) {
   String name = ci.getName();
   if (name.startsWith("//")) {
     name = name.substring("//".length());
   }
   int idx = name.indexOf('/');
   if (idx < 0) {
     throw ci.getFormatException();
   }
   databaseName = name.substring(idx + 1);
   String server = name.substring(0, idx);
   traceSystem = new TraceSystem(null);
   String traceLevelFile = ci.getProperty(SetTypes.TRACE_LEVEL_FILE, null);
   if (traceLevelFile != null) {
     int level = Integer.parseInt(traceLevelFile);
     String prefix = getFilePrefix(SysProperties.CLIENT_TRACE_DIRECTORY);
     try {
       traceSystem.setLevelFile(level);
       if (level > 0 && level < 4) {
         String file = FileUtils.createTempFile(prefix, Constants.SUFFIX_TRACE_FILE, false, false);
         traceSystem.setFileName(file);
       }
     } catch (IOException e) {
       throw DbException.convertIOException(e, prefix);
     }
   }
   String traceLevelSystemOut = ci.getProperty(SetTypes.TRACE_LEVEL_SYSTEM_OUT, null);
   if (traceLevelSystemOut != null) {
     int level = Integer.parseInt(traceLevelSystemOut);
     traceSystem.setLevelSystemOut(level);
   }
   trace = traceSystem.getTrace(Trace.JDBC);
   String serverList = null;
   if (server.indexOf(',') >= 0) {
     serverList = StringUtils.quoteStringSQL(server);
     ci.setProperty("CLUSTER", Constants.CLUSTERING_ENABLED);
   }
   autoReconnect = Boolean.parseBoolean(ci.getProperty("AUTO_RECONNECT", "false"));
   // AUTO_SERVER implies AUTO_RECONNECT
   boolean autoServer = Boolean.parseBoolean(ci.getProperty("AUTO_SERVER", "false"));
   if (autoServer && serverList != null) {
     throw DbException.getUnsupportedException("autoServer && serverList != null");
   }
   autoReconnect |= autoServer;
   if (autoReconnect) {
     String className = ci.getProperty("DATABASE_EVENT_LISTENER");
     if (className != null) {
       className = StringUtils.trim(className, true, true, "'");
       try {
         eventListener = (DatabaseEventListener) JdbcUtils.loadUserClass(className).newInstance();
       } catch (Throwable e) {
         throw DbException.convert(e);
       }
     }
   }
   cipher = ci.getProperty("CIPHER");
   if (cipher != null) {
     fileEncryptionKey = MathUtils.secureRandomBytes(32);
   }
   String[] servers = StringUtils.arraySplit(server, ',', true);
   int len = servers.length;
   transferList.clear();
   sessionId = StringUtils.convertBytesToHex(MathUtils.secureRandomBytes(32));
   // TODO cluster: support more than 2 connections
   boolean switchOffCluster = false;
   try {
     for (int i = 0; i < len; i++) {
       String s = servers[i];
       try {
         Transfer trans = initTransfer(ci, databaseName, s);
         transferList.add(trans);
       } catch (IOException e) {
         if (len == 1) {
           throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, e, e + ": " + s);
         }
         switchOffCluster = true;
       }
     }
     checkClosed();
     if (switchOffCluster) {
       switchOffCluster();
     }
     checkClusterDisableAutoCommit(serverList);
   } catch (DbException e) {
     traceSystem.close();
     throw e;
   }
 }