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Merge pull request #2939 from matthias-ronge/KIT-1481
Show and control the migration of metadata in the task manager
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Kitodo/src/main/java/org/kitodo/production/helper/tasks/MigrationTask.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| /* | ||
| * (c) Kitodo. Key to digital objects e. V. <[email protected]> | ||
| * | ||
| * This file is part of the Kitodo project. | ||
| * | ||
| * It is licensed under GNU General Public License version 3 or later. | ||
| * | ||
| * For the full copyright and license information, please read the | ||
| * GPL3-License.txt file that was distributed with this source code. | ||
| */ | ||
|
|
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| package org.kitodo.production.helper.tasks; | ||
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|
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| import java.util.List; | ||
| import java.util.concurrent.TimeUnit; | ||
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| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.kitodo.data.database.beans.Process; | ||
| import org.kitodo.data.database.beans.Project; | ||
| import org.kitodo.data.database.exceptions.DAOException; | ||
| import org.kitodo.production.helper.Helper; | ||
| import org.kitodo.production.services.ServiceManager; | ||
| import org.kitodo.production.services.migration.MigrationService; | ||
|
|
||
| /** | ||
| * Migrates metadata in a separate thread. | ||
| */ | ||
| public class MigrationTask extends EmptyTask { | ||
| private static final Logger logger = LogManager.getLogger(MigrationTask.class); | ||
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|
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| /** | ||
| * Service who has to migrate the processes. | ||
| */ | ||
| final private MigrationService migrationService; | ||
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|
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| /** | ||
| * List of processes to be migrated. | ||
| */ | ||
| final private List<Process> processes; | ||
|
|
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| /** | ||
| * Migration progress. Points to the index of the next process in case the | ||
| * thread is interrupted and restarted. Also used for the progress bar. | ||
| */ | ||
| private int progress = 0; | ||
|
|
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| /** | ||
| * Creates a new migration task. | ||
| * | ||
| * @param project | ||
| * project whose processes are to be migrated | ||
| */ | ||
| public MigrationTask(Project project) { | ||
| super(project.getTitle()); | ||
| this.migrationService = ServiceManager.getMigrationService(); | ||
| this.processes = project.getProcesses(); | ||
| } | ||
|
|
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| /** | ||
| * Clone constructor. Provides the ability to restart an export that was | ||
| * previously interrupted by the user. | ||
| * | ||
| * @param sourceMigrationTask | ||
| * terminated thread | ||
| */ | ||
| private MigrationTask(MigrationTask sourceMigrationTask) { | ||
| super(sourceMigrationTask); | ||
| this.progress = sourceMigrationTask.progress; | ||
| this.migrationService = sourceMigrationTask.migrationService; | ||
| this.processes = sourceMigrationTask.processes; | ||
| } | ||
|
|
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| /** | ||
| * This function displays the name in the task manager. | ||
| */ | ||
| @Override | ||
| public String getDisplayName() { | ||
| return Helper.getTranslation("MigrationTask"); | ||
| } | ||
|
|
||
| /** | ||
| * The method to work the thread. | ||
| */ | ||
| @Override | ||
| public void run() { | ||
| String processTitle = null; | ||
| try { | ||
| for (int index = progress; index < processes.size(); index++) { | ||
| final long begin = System.nanoTime(); | ||
| Process process = processes.get(index); | ||
| processTitle = process.getTitle(); | ||
| setWorkDetail(processTitle); | ||
| migrationService.migrateMetadata(process); | ||
| if (logger.isTraceEnabled()) { | ||
| logger.trace("Migrating {} took {} ms", processTitle, | ||
| TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - begin)); | ||
| } | ||
| progress = index + 1; | ||
| setProgress(100 * progress / processes.size()); | ||
| if (isInterrupted()) { | ||
| return; | ||
| } | ||
| } | ||
| setProgress(100); | ||
| } catch (DAOException exception) { | ||
| Helper.setErrorMessage(exception.getLocalizedMessage(), processTitle, logger, exception); | ||
| super.setException(exception); | ||
| } | ||
| } | ||
| } |
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