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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.shardingsphere.db.protocol.postgresql.packet.command.query.extended.bind.protocol.text.impl;
19  
20  import org.apache.shardingsphere.db.protocol.postgresql.packet.command.query.extended.bind.protocol.text.PostgreSQLTextValueParser;
21  
22  import java.math.BigDecimal;
23  
24  /**
25   * Numeric value parser of PostgreSQL.
26   */
27  public final class PostgreSQLNumericValueParser implements PostgreSQLTextValueParser<Number> {
28      
29      @Override
30      public Number parse(final String value) {
31          try {
32              return Integer.parseInt(value);
33          } catch (final NumberFormatException ignored) {
34          }
35          try {
36              return Long.parseLong(value);
37          } catch (final NumberFormatException ignored) {
38          }
39          return new BigDecimal(value);
40      }
41  }