com.datastax.oss.driver.internal.core.type.codec.BigIntCodec Maven / Gradle / Ivy
The newest version!
/*
* 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 com.datastax.oss.driver.internal.core.type.codec;
import com.datastax.oss.driver.api.core.ProtocolVersion;
import com.datastax.oss.driver.api.core.type.DataType;
import com.datastax.oss.driver.api.core.type.DataTypes;
import com.datastax.oss.driver.api.core.type.codec.PrimitiveLongCodec;
import com.datastax.oss.driver.api.core.type.reflect.GenericType;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.nio.ByteBuffer;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class BigIntCodec implements PrimitiveLongCodec {
@NonNull
@Override
public GenericType getJavaType() {
return GenericType.LONG;
}
@NonNull
@Override
public DataType getCqlType() {
return DataTypes.BIGINT;
}
@Override
public boolean accepts(@NonNull Object value) {
return value instanceof Long;
}
@Override
public boolean accepts(@NonNull Class javaClass) {
return javaClass == Long.class || javaClass == long.class;
}
@Nullable
@Override
public ByteBuffer encodePrimitive(long value, @NonNull ProtocolVersion protocolVersion) {
ByteBuffer bytes = ByteBuffer.allocate(8);
bytes.putLong(0, value);
return bytes;
}
@Override
public long decodePrimitive(
@Nullable ByteBuffer bytes, @NonNull ProtocolVersion protocolVersion) {
if (bytes == null || bytes.remaining() == 0) {
return 0;
} else if (bytes.remaining() != 8) {
throw new IllegalArgumentException(
"Invalid 64-bits long value, expecting 8 bytes but got " + bytes.remaining());
} else {
return bytes.getLong(bytes.position());
}
}
@NonNull
@Override
public String format(@Nullable Long value) {
return (value == null) ? "NULL" : Long.toString(value);
}
@Nullable
@Override
public Long parse(@Nullable String value) {
try {
return (value == null || value.isEmpty() || value.equalsIgnoreCase("NULL"))
? null
: Long.parseLong(value);
} catch (NumberFormatException e) {
throw new IllegalArgumentException(
String.format("Cannot parse 64-bits long value from \"%s\"", value));
}
}
}