com.stratio.cassandra.lucene.schema.mapping.BlobMapper Maven / Gradle / Ivy
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* Licensed to STRATIO (C) under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. The STRATIO (C) 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.stratio.cassandra.lucene.schema.mapping;
import com.stratio.cassandra.lucene.IndexException;
import com.stratio.cassandra.lucene.util.ByteBufferUtils;
import org.apache.cassandra.db.marshal.BytesType;
import org.apache.cassandra.db.marshal.UTF8Type;
import org.apache.cassandra.utils.Hex;
import java.nio.ByteBuffer;
/**
* A {@link Mapper} to map blob values.
*
* @author Andres de la Pena {@literal }
*/
public class BlobMapper extends KeywordMapper {
/**
* Builds a new {@link BlobMapper}.
*
* @param field The name of the field.
* @param column The name of the column to be mapped.
* @param indexed If the field supports searching.
* @param sorted If the field supports sorting.
* @param validated If the field must be validated.
*/
public BlobMapper(String field, String column, Boolean indexed, Boolean sorted, Boolean validated) {
super(field, column, indexed, sorted, validated, UTF8Type.instance, BytesType.instance);
}
/** {@inheritDoc} */
@Override
protected String doBase(String name, Object value) {
if (value instanceof ByteBuffer) {
return base((ByteBuffer) value);
} else if (value instanceof byte[]) {
return base((byte[]) value);
} else if (value instanceof String) {
return base((String) value);
}
throw new IndexException("Field '%s' requires a byte array, but found '%s'", field, value);
}
private String base(ByteBuffer value) {
return ByteBufferUtils.toHex(value);
}
private String base(byte[] value) {
return ByteBufferUtils.toHex(value);
}
private String base(String value) {
try {
byte[] bytes = Hex.hexToBytes(value.replaceFirst("0x", ""));
return Hex.bytesToHex(bytes);
} catch (NumberFormatException e) {
throw new IndexException(e, "Field '%s' requires an hex string, but found '%s'", field, value);
}
}
}