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RestoreDatabaseCommand.java
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RestoreDatabaseCommand.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.restore;
import java.io.File;
import java.io.IOException;
import org.neo4j.dbms.DatabaseManagementSystemSettings;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.kernel.configuration.Config;
import static java.lang.String.format;
import static org.neo4j.dbms.DatabaseManagementSystemSettings.database_path;
import static org.neo4j.helpers.collection.MapUtil.stringMap;
public class RestoreDatabaseCommand
{
private FileSystemAbstraction fs;
private final File fromPath;
private final File databaseDir;
private String databaseName;
private boolean forceOverwrite;
public RestoreDatabaseCommand( FileSystemAbstraction fs, File fromPath, Config config,
String databaseName, boolean forceOverwrite )
{
this.fs = fs;
this.fromPath = fromPath;
this.databaseName = databaseName;
this.forceOverwrite = forceOverwrite;
this.databaseDir = config.get( database_path ).getAbsoluteFile();
}
public void execute() throws IOException
{
if ( !fs.fileExists( fromPath ) )
{
throw new IllegalArgumentException( format( "Source directory does not exist [%s]", fromPath ) );
}
if ( fs.fileExists( databaseDir ) && !forceOverwrite )
{
throw new IllegalArgumentException( format( "Database with name [%s] already exists at %s",
databaseName, databaseDir ) );
}
fs.deleteRecursively( databaseDir );
fs.copyRecursively( fromPath, databaseDir );
}
}