package org.apache.cassandra.db.marshal;
/*
*
* 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.
*
*/
import java.nio.ByteBuffer;
import java.nio.charset.CharacterCodingException;
import com.google.common.base.Charsets;
import org.apache.cassandra.utils.ByteBufferUtil;
public class AsciiType extends AbstractType<String>
{
public static final AsciiType instance = new AsciiType();
AsciiType() {} // singleton
public String compose(ByteBuffer bytes)
{
return getString(bytes);
}
public ByteBuffer decompose(String value)
{
return ByteBufferUtil.bytes(value, Charsets.US_ASCII);
}
public int compare(ByteBuffer o1, ByteBuffer o2)
{
return BytesType.bytesCompare(o1, o2);
}
@Override
public String getString(ByteBuffer bytes)
{
try
{
return ByteBufferUtil.string(bytes, Charsets.US_ASCII);
}
catch (CharacterCodingException e)
{
throw new MarshalException("Invalid ascii bytes " + ByteBufferUtil.bytesToHex(bytes));
}
}
public ByteBuffer fromString(String source)
{
return decompose(source);
}
public void validate(ByteBuffer bytes) throws MarshalException
{
// 0-127
for (int i = bytes.position(); i < bytes.limit(); i++)
{
byte b = bytes.get(i);
if (b < 0 || b > 127)
throw new MarshalException("Invalid byte for ascii: " + Byte.toString(b));
}
}
}