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The AceQL Java Client JDBC Driver allows to wrap the AceQL HTTP APIs and eliminates the tedious works of handling communications errors and parsing JSON results. Android and Java Desktop application developers can access remote SQL databases and/or SQL databases in the cloud by simply including standard JDBC calls in their code, just like they would for a local database.

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/*
 * This file is part of AceQL JDBC Driver.
 * AceQL JDBC Driver: Remote JDBC access over HTTP with AceQL HTTP.
 * Copyright (c) 2023,  KawanSoft SAS
 * (http://www.kawansoft.com). All rights reserved.
 *
 * 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.aceql.jdbc.commons.main.util;

import org.apache.commons.lang3.StringUtils;

public class BlobUtil {

    private static final String DOT_CLOB_TXT = ".clob.txt";
    private static final String DOT_BLOB = ".blob";

    /**
     * Says if a string in fact a ClobId aka in format 6e91b35fe4d84420acc6e230607ebc37.clob.txt
     * @param clobId the string to check as ClobId
     * @return true if the string is a ClobId
     */
    public static boolean isClobId(String clobId) {
	if (clobId == null) {
	    return false;
	}
	
	if (! clobId.endsWith(DOT_CLOB_TXT)) {
	    return false;
	}
	
	String hexPart = StringUtils.substringBefore(clobId, DOT_CLOB_TXT);
	return HexUtil.isHexadecimal(hexPart);
    }

    public static boolean isBlobId(String blobId) {
	if (blobId == null) {
	    return false;
	}
	
	if (! blobId.endsWith(DOT_BLOB)) {
	    return false;
	}
	
	String hexPart = StringUtils.substringBefore(blobId, DOT_BLOB);
	return HexUtil.isHexadecimal(hexPart);
    }

}