| /* |
| * 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 org.apache.cassandra.serializers; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.charset.CharacterCodingException; |
| import java.nio.charset.Charset; |
| |
| import org.apache.commons.lang3.StringUtils; |
| |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| |
| public abstract class AbstractTextSerializer implements TypeSerializer<String> |
| { |
| private final Charset charset; |
| |
| protected AbstractTextSerializer(Charset charset) |
| { |
| this.charset = charset; |
| } |
| |
| public String deserialize(ByteBuffer bytes) |
| { |
| try |
| { |
| return ByteBufferUtil.string(bytes, charset); |
| } |
| catch (CharacterCodingException e) |
| { |
| throw new MarshalException("Invalid " + charset + " bytes " + ByteBufferUtil.bytesToHex(bytes)); |
| } |
| } |
| |
| public ByteBuffer serialize(String value) |
| { |
| return ByteBufferUtil.bytes(value, charset); |
| } |
| |
| public String toString(String value) |
| { |
| return value; |
| } |
| |
| public Class<String> getType() |
| { |
| return String.class; |
| } |
| |
| /** |
| * Generates CQL literal for TEXT/VARCHAR/ASCII types. |
| * Caveat: it does only generate literals with single quotes and not pg-style literals. |
| */ |
| @Override |
| public String toCQLLiteral(ByteBuffer buffer) |
| { |
| return buffer == null |
| ? "null" |
| : '\'' + StringUtils.replace(deserialize(buffer), "'", "''") + '\''; |
| } |
| } |