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Aerospike Java client interface to Aerospike database server

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/*
 * Copyright 2012-2021 Aerospike, Inc.
 *
 * Portions may be licensed to Aerospike, Inc. under one or more contributor
 * license agreements WHICH ARE COMPATIBLE WITH THE APACHE LICENSE, VERSION 2.0.
 *
 * 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.aerospike.client.cdt;

import com.aerospike.client.Value;
import com.aerospike.client.util.Pack;
import com.aerospike.client.util.Packer;

public abstract class CDT {
	protected static byte[] packRangeOperation(int command, int returnType, Value begin, Value end, CTX[] ctx) {
		Packer packer = new Packer();
		Pack.init(packer, ctx);
		packer.packArrayBegin((end != null)? 4 : 3);
		packer.packInt(command);
		packer.packInt(returnType);

		if (begin != null) {
			begin.pack(packer);
		}
		else {
			packer.packNil();
		}

		if (end != null) {
			end.pack(packer);
		}
		return packer.toByteArray();
	}

	protected static void init(Packer packer, CTX[] ctx, int command, int count, int flag) {
		packer.packArrayBegin(3);
		packer.packInt(0xff);
		packer.packArrayBegin(ctx.length * 2);

		CTX c;
		int last = ctx.length - 1;

		for (int i = 0; i < last; i++) {
			c = ctx[i];
			packer.packInt(c.id);
			c.value.pack(packer);
		}

		c = ctx[last];
		packer.packInt(c.id | flag);
		c.value.pack(packer);

		packer.packArrayBegin(count + 1);
		packer.packInt(command);
	}
}