migratedb.v1.commandline.Main Maven / Gradle / Ivy
/*
* Copyright (C) Red Gate Software Ltd 2010-2021
* Copyright 2022 The MigrateDB contributors
*
* 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 migratedb.v1.commandline;
import migratedb.v1.core.api.logging.Log;
import migratedb.v1.core.api.logging.LogSystem;
import migratedb.v1.core.internal.logging.MultiLogSystem;
import migratedb.v1.core.internal.logging.NoLogSystem;
import java.util.ArrayList;
import java.util.List;
public class Main {
public static void main(String[] args) {
Arguments arguments = new Arguments(args);
var realStdOut = System.out;
var realStdErr = System.err;
if (arguments.shouldOutputJson()) {
// Cannot allow anyone else (rogue loggers!) to write to stdout/stderr
System.setOut(new DiscardingPrintStream());
System.setErr(new DiscardingPrintStream());
}
Log.setDefaultLogSystem(getDefaultLogSystem(arguments));
int exitCode;
try {
exitCode = new MigrateDbCommand(arguments,
System.console(),
realStdOut,
realStdErr,
System.in,
System.getenv())
.run();
} catch (Exception e) {
exitCode = ExitCode.UNHANDLED_EXCEPTION;
}
System.exit(exitCode);
}
private static LogSystem getDefaultLogSystem(Arguments arguments) {
if (arguments.shouldOutputJson()) {
return NoLogSystem.INSTANCE;
}
List logSystems = new ArrayList<>();
logSystems.add(new ConsoleLogSystem(arguments, System.out, System.err));
if (arguments.isOutputFileSet()) {
logSystems.add(new FileLogSystem(arguments));
}
return new MultiLogSystem(logSystems);
}
}