content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed 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.alibaba.druid.proxy.jdbc;
  
  import com.alibaba.druid.filter.FilterChainImpl;
  import com.alibaba.druid.proxy.jdbc.JdbcParameter.TYPE;
  
  import java.io.InputStream;
  import java.io.Reader;
  import java.math.BigDecimal;
  import java.net.URL;
  import java.sql.*;
  import java.util.Arrays;
  import java.util.Calendar;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * @author wenshao [szujobs@hotmail.com]
   */
  public class PreparedStatementProxyImpl extends StatementProxyImpl implements PreparedStatementProxy {
      private PreparedStatement statement;
      protected final String sql;
      private JdbcParameter[] parameters;
      private int parametersSize;
      private Map<Integer, JdbcParameter> paramMap;
  
      public PreparedStatementProxyImpl(ConnectionProxy connection, PreparedStatement statement, String sql, long id) {
          super(connection, statement, id);
          this.statement = statement;
          this.sql = sql;
  
          char quote = 0;
          int paramCount = 0;
          for (int i = 0; i < sql.length(); ++i) {
              char ch = sql.charAt(i);
  
              if (ch == '\'') {
                  if (quote == 0) {
                      quote = ch;
                  } else if (quote == '\'') {
                      quote = 0;
                  }
              } else if (ch == '"') {
                  if (quote == 0) {
                      quote = ch;
                  } else if (quote == '"') {
                      quote = 0;
                  }
              }
  
              if (quote == 0 && ch == '?') {
                  paramCount++;
              }
          }
  
          parameters = new JdbcParameter[paramCount];
      }
  
      public Map<Integer, JdbcParameter> getParameters() {
          if (paramMap == null) {
              paramMap = new HashMap<Integer, JdbcParameter>(parametersSize);
              for (int i = 0; i < parametersSize; ++i) {
                  paramMap.put(i, parameters[i]);
              }
          }
  
          return paramMap;
      }
  
      protected void setStatement(PreparedStatement statement) {
          super.statement = statement;
          this.statement = statement;
      }
  
      public void setParameter(int jdbcIndex, JdbcParameter parameter) {
          int index = jdbcIndex - 1;
  
          if (jdbcIndex > parametersSize) {
              parametersSize = jdbcIndex;
          }
          if (parametersSize >= parameters.length) {
              int oldCapacity = parameters.length;
              int newCapacity = oldCapacity + (oldCapacity >> 1);
              if (newCapacity <= 4) {
                  newCapacity = 4;
              }
  
              parameters = Arrays.copyOf(parameters, newCapacity);
          }
          parameters[index] = parameter;
  
          if (paramMap != null) {
              paramMap = null;
          }
      }
  
      public int getParametersSize() {
          return parametersSize;
      }
  
      public JdbcParameter getParameter(int i) {
          if (i > parametersSize) {
              return null;
          }
          return this.parameters[i];
      }
  
      public String getSql() {
          return this.sql;
      }
  
      public PreparedStatement getRawObject() {
          return this.statement;
      }
  
      @Override
      public void addBatch() throws SQLException {
          FilterChainImpl chain = createChain();
          chain.preparedStatement_addBatch(this);
          recycleFilterChain(chain);
      }
  
      @Override
      public void clearParameters() throws SQLException {
          FilterChainImpl chain = createChain();
          chain.preparedStatement_clearParameters(this);
          recycleFilterChain(chain);
      }
  
      @Override
      public String getBatchSql() {
          return this.sql;
      }
  
      @Override
      public boolean execute() throws SQLException {
          updateCount = null;
          lastExecuteSql = sql;
          lastExecuteType = StatementExecuteType.Execute;
          lastExecuteStartNano = -1L;
          lastExecuteTimeNano = -1L;
  
          FilterChainImpl chain = createChain();
          firstResultSet = chain.preparedStatement_execute(this);
          recycleFilterChain(chain);
          return firstResultSet;
      }
  
      @Override
      public ResultSet executeQuery() throws SQLException {
          firstResultSet = true;
  
          updateCount = null;
          lastExecuteSql = sql;
          lastExecuteType = StatementExecuteType.ExecuteQuery;
          lastExecuteStartNano = -1L;
          lastExecuteTimeNano = -1L;
  
          FilterChainImpl chain = createChain();
          try {
              return chain.preparedStatement_executeQuery(this);
          } finally {
              recycleFilterChain(chain);
          }
      }
  
      @Override
      public int executeUpdate() throws SQLException {
          firstResultSet = false;
  
          updateCount = null;
          lastExecuteSql = sql;
          lastExecuteType = StatementExecuteType.ExecuteUpdate;
          lastExecuteStartNano = -1L;
          lastExecuteTimeNano = -1L;
  
          FilterChainImpl chain = createChain();
          updateCount = chain.preparedStatement_executeUpdate(this);
          recycleFilterChain(chain);
          return updateCount;
      }
  
      @Override
      public ResultSetMetaData getMetaData() throws SQLException {
          FilterChainImpl chain = createChain();
          try {
              return chain.preparedStatement_getMetaData(this);
          } finally {
              recycleFilterChain(chain);
          }
      }
  
      @Override
      public ParameterMetaData getParameterMetaData() throws SQLException {
          FilterChainImpl chain = createChain();
          try {
              return chain.preparedStatement_getParameterMetaData(this);
          } finally {
              recycleFilterChain(chain);
          }
      }
  
      @Override
      public void setArray(int parameterIndex, Array x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.ARRAY, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setArray(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setAsciiStream(int parameterIndex, InputStream x) throws SQLException {
          setParameter(parameterIndex, createParameter(JdbcParameter.TYPE.AsciiInputStream, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setAsciiStream(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setAsciiStream(int parameterIndex, InputStream x, int length) throws SQLException {
          setParameter(parameterIndex, createParameter(JdbcParameter.TYPE.AsciiInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setAsciiStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setAsciiStream(int parameterIndex, InputStream x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(JdbcParameter.TYPE.AsciiInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setAsciiStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBigDecimal(int parameterIndex, BigDecimal x) throws SQLException {
          setParameter(parameterIndex, createParameter(x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBigDecimal(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBinaryStream(int parameterIndex, InputStream x) throws SQLException {
          setParameter(parameterIndex, createParameter(JdbcParameter.TYPE.BinaryInputStream, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBinaryStream(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBinaryStream(int parameterIndex, InputStream x, int length) throws SQLException {
          setParameter(parameterIndex, createParameter(JdbcParameter.TYPE.BinaryInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBinaryStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBinaryStream(int parameterIndex, InputStream x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(JdbcParameter.TYPE.BinaryInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBinaryStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBlob(int parameterIndex, Blob x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.BLOB, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBlob(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBlob(int parameterIndex, InputStream x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.BLOB, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBlob(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBlob(int parameterIndex, InputStream x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.BLOB, x, length));
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBlob(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBoolean(int parameterIndex, boolean x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.BOOLEAN, x));
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBoolean(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setByte(int parameterIndex, byte x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.TINYINT, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setByte(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setBytes(int parameterIndex, byte[] x) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.BYTES, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setBytes(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setCharacterStream(int parameterIndex, Reader x) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.CharacterInputStream, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setCharacterStream(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setCharacterStream(int parameterIndex, Reader x, int length) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.CharacterInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setCharacterStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setCharacterStream(int parameterIndex, Reader x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.CharacterInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setCharacterStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setClob(int parameterIndex, Clob x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.CLOB, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setClob(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setClob(int parameterIndex, Reader x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.CLOB, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setClob(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setClob(int parameterIndex, Reader x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.CLOB, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setClob(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setDate(int parameterIndex, Date x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setDate(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setDate(int parameterIndex, Date x, Calendar cal) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(Types.DATE, x, cal)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setDate(this, parameterIndex, x, cal);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setDouble(int parameterIndex, double x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(Types.DOUBLE, x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setDouble(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setFloat(int parameterIndex, float x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(Types.FLOAT, x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setFloat(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setInt(int parameterIndex, int x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParemeter(x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setInt(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setLong(int parameterIndex, long x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setLong(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNCharacterStream(int parameterIndex, Reader x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(TYPE.NCharacterInputStream, x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNCharacterStream(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNCharacterStream(int parameterIndex, Reader x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.NCharacterInputStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNCharacterStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNClob(int parameterIndex, NClob x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.NCLOB, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNClob(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNClob(int parameterIndex, Reader x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.NCLOB, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNClob(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNClob(int parameterIndex, Reader x, long length) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.NCLOB, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNClob(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNString(int parameterIndex, String x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.NVARCHAR, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNString(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNull(int parameterIndex, int sqlType) throws SQLException {
          setParameter(parameterIndex, createParameterNull(sqlType));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNull(this, parameterIndex, sqlType);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setNull(int parameterIndex, int sqlType, String typeName) throws SQLException {
          setParameter(parameterIndex, createParameterNull(sqlType));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setNull(this, parameterIndex, sqlType, typeName);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setObject(int parameterIndex, Object x) throws SQLException {
          setObjectParameter(parameterIndex, x);
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setObject(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      private void setObjectParameter(int parameterIndex, Object x) {
          if (x == null) {
              setParameter(parameterIndex, createParameterNull(Types.OTHER));
              return;
          }
  
          Class<?> clazz = x.getClass();
          if (clazz == Byte.class) {
              setParameter(parameterIndex, createParameter(Types.TINYINT, x));
              return;
          }
  
          if (clazz == Short.class) {
              setParameter(parameterIndex, createParameter(Types.SMALLINT, x));
              return;
          }
  
          if (clazz == Integer.class) {
              setParameter(parameterIndex, createParemeter((Integer) x));
              return;
          }
  
          if (clazz == Long.class) {
              setParameter(parameterIndex, createParameter((Long) x));
              return;
          }
  
          if (clazz == String.class) {
              setParameter(parameterIndex, createParameter((String) x));
              return;
          }
  
          if (clazz == BigDecimal.class) {
              setParameter(parameterIndex, createParameter((BigDecimal) x));
              return;
          }
  
          if (clazz == Float.class) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.FLOAT, x));
              return;
          }
  
          if (clazz == Double.class) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.DOUBLE, x));
              return;
          }
  
          if (clazz == java.sql.Date.class || clazz == java.util.Date.class) {
              setParameter(parameterIndex, createParameter((java.util.Date) x));
              return;
          }
  
          if (clazz == java.sql.Timestamp.class) {
              setParameter(parameterIndex, createParameter((java.sql.Timestamp) x));
              return;
          }
  
          if (clazz == java.sql.Time.class) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.TIME, x));
              return;
          }
  
          if (clazz == Boolean.class) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.BOOLEAN, x));
              return;
          }
  
          if (clazz == byte[].class) {
              setParameter(parameterIndex, new JdbcParameterImpl(TYPE.BYTES, x));
              return;
          }
  
          if (x instanceof InputStream) {
              setParameter(parameterIndex, new JdbcParameterImpl(JdbcParameter.TYPE.BinaryInputStream, x));
              return;
          }
  
          if (x instanceof Reader) {
              setParameter(parameterIndex, new JdbcParameterImpl(JdbcParameter.TYPE.CharacterInputStream, x));
              return;
          }
  
          if (x instanceof NClob) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.NCLOB, x));
              return;
          }
  
          if (x instanceof Clob) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.CLOB, x));
              return;
          }
  
          if (x instanceof Blob) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.BLOB, x));
              return;
          }
  
          String className = x.getClass().getName();
  
          if (className.equals("java.time.LocalTime")) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.TIME, x));
              return;
          }
  
          if (className.equals("java.time.LocalDate")) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.DATE, x));
              return;
          }
  
          if (className.equals("java.time.LocalDateTime")) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.TIMESTAMP, x));
              return;
          }
  
          if (className.equals("java.time.ZonedDateTime")) {
              setParameter(parameterIndex, new JdbcParameterImpl(Types.TIMESTAMP, x));
              return;
          }
  
          setParameter(parameterIndex, createParameter(Types.OTHER, null));
      }
  
      @Override
      public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
          setParameter(parameterIndex, createParameter(targetSqlType, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setObject(this, parameterIndex, x, targetSqlType);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) throws SQLException {
          setParameter(parameterIndex, createParameter(x, targetSqlType, scaleOrLength));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setObject(this, parameterIndex, x, targetSqlType, scaleOrLength);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setRef(int parameterIndex, Ref x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.REF, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setRef(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setRowId(int parameterIndex, RowId x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.ROWID, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setRowId(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setSQLXML(int parameterIndex, SQLXML x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.SQLXML, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setSQLXML(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setShort(int parameterIndex, short x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.SMALLINT, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setShort(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setString(int parameterIndex, String x) throws SQLException {
          setParameter(
                  parameterIndex,
                  createParameter(x)
          );
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setString(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setTime(int parameterIndex, Time x) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.TIME, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setTime(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setTime(int parameterIndex, Time x, Calendar cal) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.TIME, x, cal));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setTime(this, parameterIndex, x, cal);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException {
          setParameter(parameterIndex, createParameter(x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setTimestamp(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
          setParameter(parameterIndex, createParameter(Types.TIMESTAMP, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setTimestamp(this, parameterIndex, x, cal);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setURL(int parameterIndex, URL x) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.URL, x));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setURL(this, parameterIndex, x);
          recycleFilterChain(chain);
      }
  
      @Override
      public void setUnicodeStream(int parameterIndex, InputStream x, int length) throws SQLException {
          setParameter(parameterIndex, createParameter(TYPE.UnicodeStream, x, length));
  
          FilterChainImpl chain = createChain();
          chain.preparedStatement_setUnicodeStream(this, parameterIndex, x, length);
          recycleFilterChain(chain);
      }
  
      @Override
      public String getLastExecuteSql() {
          return this.sql;
      }
  
      @SuppressWarnings("unchecked")
      public <T> T unwrap(Class<T> iface) throws SQLException {
          if (iface == PreparedStatementProxy.class) {
              return (T) this;
          }
  
          return super.unwrap(iface);
      }
  
      public boolean isWrapperFor(Class<?> iface) throws SQLException {
          if (iface == PreparedStatementProxy.class) {
              return true;
          }
  
          return super.isWrapperFor(iface);
      }
  
      private JdbcParameter createParemeter(int x) {
          return JdbcParameterInt.valueOf(x);
      }
  
      private JdbcParameter createParameter(long x) {
          return JdbcParameterLong.valueOf(x);
      }
  
      private JdbcParameter createParameterNull(int sqlType) {
          return JdbcParameterNull.valueOf(sqlType);
  
      }
  
      private JdbcParameter createParameter(java.util.Date x) {
          if (x == null) {
              return JdbcParameterNull.DATE;
          }
  
          return new JdbcParameterDate(x);
      }
  
      private JdbcParameter createParameter(BigDecimal x) {
          if (x == null) {
              return JdbcParameterNull.DECIMAL;
          }
  
          return JdbcParameterDecimal.valueOf(x);
      }
  
      private JdbcParameter createParameter(String x) {
          if (x == null) {
              return JdbcParameterNull.VARCHAR;
          }
  
          if (x.length() == 0) {
              return JdbcParameterString.empty;
          }
  
          return new JdbcParameterString(x);
      }
  
      private JdbcParameter createParameter(Timestamp x) {
          if (x == null) {
              return JdbcParameterNull.TIMESTAMP;
          }
  
          return new JdbcParameterTimestamp(x);
      }
  
      private JdbcParameter createParameter(Object x, int sqlType, int scaleOrLength) {
          if (x == null) {
              return JdbcParameterNull.valueOf(sqlType);
          }
  
          return new JdbcParameterImpl(sqlType, x, -1, null, scaleOrLength);
      }
  
      private JdbcParameter createParameter(int sqlType, Object value, long length) {
          if (value == null) {
              return JdbcParameterNull.valueOf(sqlType);
          }
  
          return new JdbcParameterImpl(sqlType, value, length);
      }
  
      private JdbcParameter createParameter(int sqlType, Object value) {
          if (value == null) {
              return JdbcParameterNull.valueOf(sqlType);
          }
  
          return new JdbcParameterImpl(sqlType, value);
      }
  
      public JdbcParameter createParameter(int sqlType, Object value, Calendar calendar) {
          if (value == null) {
              return JdbcParameterNull.valueOf(sqlType);
          }
  
          return new JdbcParameterImpl(sqlType, value, calendar);
      }
  }
  