ConcurrentDbAccessException.java

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/*
 * Sleuth Kit Data Model
 *
 * Copyright 2024 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * 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 org.sleuthkit.datamodel;

import java.io.IOException;
import java.io.RandomAccessFile;

public class ConcurrentDbAccessException extends TskCoreException {

        private final String conflictingApplicationName;

        static ConcurrentDbAccessException createForFile(String lockFilePath, RandomAccessFile lockFileRaf) throws IOException {
                StringBuffer buffer = new StringBuffer();
                while (lockFileRaf.getFilePointer() < lockFileRaf.length()) {
                        buffer.append(lockFileRaf.readLine() + System.lineSeparator());
                }
                String conflictingApplication = buffer.toString().trim();
                String message = "Unable to acquire lock on "
                                + lockFilePath
                                + "."
                                + ((conflictingApplication != null && conflictingApplication.trim().length() > 0)
                                ? ("  Database is already open in " + conflictingApplication + ".")
                                : "");

                return new ConcurrentDbAccessException(message, conflictingApplication);
        }

        ConcurrentDbAccessException(String message, String conflictingApplicationName) {
                super(message);
                this.conflictingApplicationName = conflictingApplicationName;
        }

        public String getConflictingApplicationName() {
                return conflictingApplicationName;
        }
}