io.datty.aerospike.support.AerospikeValueUtil.java Source code

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Here is the source code for io.datty.aerospike.support.AerospikeValueUtil.java

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/*
 * Copyright (C) 2016 Datty.io Authors
 *
 * 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 io.datty.aerospike.support;

import java.nio.charset.StandardCharsets;

import com.aerospike.client.Value;
import com.aerospike.client.Value.ByteSegmentValue;
import com.aerospike.client.Value.BytesValue;
import com.aerospike.client.Value.NullValue;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

/**
 * AerospikeValueUtil
 * 
 * @author Alex Shvid
 *
 */

public final class AerospikeValueUtil {

    private AerospikeValueUtil() {
    }

    public static ByteBuf toByteBuf(Object aerospikeValue) {
        if (aerospikeValue instanceof byte[]) {
            return Unpooled.wrappedBuffer((byte[]) aerospikeValue);
        } else if (aerospikeValue instanceof String) {
            return asByteBuf((String) aerospikeValue);
        } else {
            return asByteBuf(aerospikeValue.toString());
        }
    }

    public static ByteBuf asByteBuf(String str) {
        return Unpooled.wrappedBuffer(str.getBytes(StandardCharsets.UTF_8));
    }

    public static Value toValue(ByteBuf bufferOrNull) {

        if (bufferOrNull == null) {
            return new NullValue();
        } else if (bufferOrNull.hasArray()) {
            int start = bufferOrNull.readerIndex();
            int length = bufferOrNull.readableBytes();
            if (start != 0 || length != bufferOrNull.capacity()) {
                int baseOffset = bufferOrNull.arrayOffset() + start;
                return new ByteSegmentValue(bufferOrNull.array(), baseOffset, baseOffset + length);
            } else {
                return new BytesValue(bufferOrNull.array());
            }
        } else {
            byte[] bytes = new byte[bufferOrNull.readableBytes()];
            bufferOrNull.getBytes(bufferOrNull.readerIndex(), bytes);
            return new BytesValue(bytes);
        }

    }

}