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OnlineBackupContextLoader.java
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OnlineBackupContextLoader.java
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/*
* Copyright (c) 2002-2017 "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.backup;
import org.neo4j.commandline.admin.CommandFailed;
import org.neo4j.commandline.admin.IncorrectUsage;
import org.neo4j.consistency.checking.full.ConsistencyFlags;
import org.neo4j.kernel.configuration.Config;
/**
* A helper class that performs processing of command line arguments and configuration and groups the result of this processing for easier handling
*/
public class OnlineBackupContextLoader
{
private final BackupCommandArgumentHandler backupCommandArgumentHandler;
private final OnlineBackupCommandConfigLoader onlineBackupCommandConfigLoader;
OnlineBackupContextLoader( BackupCommandArgumentHandler backupCommandArgumentHandler,
OnlineBackupCommandConfigLoader onlineBackupCommandConfigLoader )
{
this.backupCommandArgumentHandler = backupCommandArgumentHandler;
this.onlineBackupCommandConfigLoader = onlineBackupCommandConfigLoader;
}
/**
* Process command line arguments, establish if they are valid and group them conveniently into a {@link OnlineBackupContext}
* @param commandlineArgs Command line arguments split into an array by space
* @return the resolved configuration and arguments used in controlling the behaviour of the backup tool
*/
public OnlineBackupContext fromCommandLineArguments( String[] commandlineArgs )
{
try
{
OnlineBackupRequiredArguments requiredArguments = backupCommandArgumentHandler.establishRequiredArguments( commandlineArgs );
Config config = onlineBackupCommandConfigLoader.loadConfig( requiredArguments.getAdditionalConfig(),
requiredArguments.getResolvedLocationFromName() );
ConsistencyFlags consistencyFlags = backupCommandArgumentHandler.readFlagsFromArgumentsOrDefaultToConfig( config );
return new OnlineBackupContext( requiredArguments, config, consistencyFlags );
}
catch ( IncorrectUsage | CommandFailed e )
{
throw new IllegalArgumentException( "Something went wrong when evaluating input", e );
}
}
}