/*
* Copyright DataStax, Inc.
*
* Licensed 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.TypeCodec;
import com.datastax.oss.driver.api.core.type.reflect.GenericType;
import com.datastax.oss.driver.internal.core.util.Strings;
import com.datastax.oss.protocol.internal.util.Bytes;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class InetCodec implements TypeCodec<InetAddress> {
@NonNull
@Override
public GenericType<InetAddress> getJavaType() {
return GenericType.INET_ADDRESS;
}
@NonNull
@Override
public DataType getCqlType() {
return DataTypes.INET;
}
@Override
public boolean accepts(@NonNull Object value) {
return value instanceof InetAddress;
}
@Override
public boolean accepts(@NonNull Class<?> javaClass) {
return InetAddress.class.equals(javaClass);
}
@Nullable
@Override
public ByteBuffer encode(@Nullable InetAddress value, @NonNull ProtocolVersion protocolVersion) {
return (value == null) ? null : ByteBuffer.wrap(value.getAddress());
}
@Nullable
@Override
public InetAddress decode(@Nullable ByteBuffer bytes, @NonNull ProtocolVersion protocolVersion) {
if (bytes == null || bytes.remaining() == 0) {
return null;
}
try {
return InetAddress.getByAddress(Bytes.getArray(bytes));
} catch (UnknownHostException e) {
throw new IllegalArgumentException(
"Invalid bytes for inet value, got " + bytes.remaining() + " bytes");
}
}
@NonNull
@Override
public String format(@Nullable InetAddress value) {
return (value == null) ? "NULL" : ("'" + value.getHostAddress() + "'");
}
@Nullable
@Override
public InetAddress parse(@Nullable String value) {
if (value == null || value.isEmpty() || value.equalsIgnoreCase("NULL")) {
return null;
}
value = value.trim();
if (!Strings.isQuoted(value)) {
throw new IllegalArgumentException(
String.format("inet values must be enclosed in single quotes (\"%s\")", value));
}
try {
return InetAddress.getByName(value.substring(1, value.length() - 1));
} catch (Exception e) {
throw new IllegalArgumentException(
String.format("Cannot parse inet value from \"%s\"", value));
}
}
}