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darin.kelkhoff
2024-06-06 08:15:12 -05:00
parent 7ff7ae3a0c
commit f7d217a126
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99
qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/utils/PrefixedDefaultThreadFactory.java Normal file
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/*
* QQQ - Low-code Application Framework for Engineers.
* Copyright (C) 2021-2024. Kingsrook, LLC
* 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
* contact@kingsrook.com
* https://github.com/Kingsrook/
*
* This program 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 <https://www.gnu.org/licenses/>.
*/
package com.kingsrook.qqq.backend.core.utils;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
/*******************************************************************************
** ThreadFactory implementation that puts a common prefix on all threads.
**
** Makes it so that, instead of having 100s of pool-x-thread-y names that are
** hard to tell apart, they can have a prefix: MyService-pool-x-thread-y, vs
** YourThing-pool-x-thread-y.
**
** You can put '-' at the end of your threadNamePrefix (constructor arg) or
** you can omit it, either way, we'll make it look like shown above.
*******************************************************************************/
public class PrefixedDefaultThreadFactory implements ThreadFactory
{
private final String threadNamePrefix;
private final ThreadFactory threadFactory;
/*******************************************************************************
** Constructor
**
*******************************************************************************/
public PrefixedDefaultThreadFactory(String threadNamePrefix)
{
if(StringUtils.hasContent(threadNamePrefix))
{
this.threadNamePrefix = threadNamePrefix.replaceAll("-+$", "") + "-";
}
else
{
this.threadNamePrefix = "";
}
threadFactory = Executors.defaultThreadFactory();
}
/*******************************************************************************
** Constructor
**
*******************************************************************************/
public PrefixedDefaultThreadFactory(Class<?> callerClass)
{
this(callerClass != null ? callerClass.getSimpleName() : "");
}
/*******************************************************************************
** Constructor
**
*******************************************************************************/
public PrefixedDefaultThreadFactory(Object caller)
{
this(caller != null ? caller.getClass() : null);
}
/*******************************************************************************
**
*******************************************************************************/
@Override
public Thread newThread(Runnable r)
{
Thread thread = threadFactory.newThread(r);
thread.setName(threadNamePrefix + thread.getName());
return (thread);
}
}

65
qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/utils/PrefixedDefaultThreadFactoryTest.java Normal file
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/*
* QQQ - Low-code Application Framework for Engineers.
* Copyright (C) 2021-2024. Kingsrook, LLC
* 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
* contact@kingsrook.com
* https://github.com/Kingsrook/
*
* This program 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 <https://www.gnu.org/licenses/>.
*/
package com.kingsrook.qqq.backend.core.utils;
import com.kingsrook.qqq.backend.core.BaseTest;
import com.kingsrook.qqq.backend.core.actions.tables.InsertAction;
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
/*******************************************************************************
** Unit test for PrefixedDefaultThreadFactory
*******************************************************************************/
class PrefixedDefaultThreadFactoryTest extends BaseTest
{
/*******************************************************************************
**
*******************************************************************************/
@Test
void test()
{
assertThat(new PrefixedDefaultThreadFactory("ItsMe").newThread(this::noop).getName()).startsWith("ItsMe-pool");
assertThat(new PrefixedDefaultThreadFactory("ItsMe-").newThread(this::noop).getName()).startsWith("ItsMe-pool");
assertThat(new PrefixedDefaultThreadFactory("ItsMe--").newThread(this::noop).getName()).startsWith("ItsMe-pool");
assertThat(new PrefixedDefaultThreadFactory((String) null).newThread(this::noop).getName()).startsWith("pool");
assertThat(new PrefixedDefaultThreadFactory((Class<?>) null).newThread(this::noop).getName()).startsWith("pool");
assertThat(new PrefixedDefaultThreadFactory((Object) null).newThread(this::noop).getName()).startsWith("pool");
assertThat(new PrefixedDefaultThreadFactory("").newThread(this::noop).getName()).startsWith("pool");
assertThat(new PrefixedDefaultThreadFactory(" ").newThread(this::noop).getName()).startsWith("pool");
assertThat(new PrefixedDefaultThreadFactory(this).newThread(this::noop).getName()).startsWith(getClass().getSimpleName() + "-pool");
assertThat(new PrefixedDefaultThreadFactory(InsertAction.class).newThread(this::noop).getName()).startsWith(InsertAction.class.getSimpleName() + "-pool");
}
/*******************************************************************************
**
*******************************************************************************/
void noop()
{
System.out.println("noop");
}
}