/*
* Licensed to Crate under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial
* agreement.
*/
package io.crate.protocols.postgres.types;
import org.jboss.netty.buffer.ChannelBuffer;
import javax.annotation.Nonnull;
import java.nio.charset.StandardCharsets;
class CharType extends PGType {
public static final PGType INSTANCE = new CharType();
static final int OID = 18;
private CharType() {
super(OID, 1, -1, "char");
}
@Override
public int writeAsBinary(ChannelBuffer buffer, @Nonnull Object value) {
buffer.writeInt(1);
buffer.writeByte(((byte) value));
return 5;
}
@Override
public Object readBinaryValue(ChannelBuffer buffer, int valueLength) {
assert valueLength == 1 : "char must have 1 byte";
return buffer.readByte();
}
@Override
byte[] encodeAsUTF8Text(@Nonnull Object value) {
return Byte.toString((byte) value).getBytes(StandardCharsets.UTF_8);
}
@Override
Object decodeUTF8Text(byte[] bytes) {
return Byte.parseByte(new String(bytes, StandardCharsets.UTF_8));
}
}