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/*
 * tksCommons
 *
 * Author  : Thomas Kuhlmann (ThK-Systems, http://www.thk-systems.de)
 * License : LGPL (https://www.gnu.org/licenses/lgpl.html)
 */
package de.thksystems.util.concurrent;

import java.util.function.Supplier;

/**
 * A {@link Supplier} with the ability to set the thread name that is used while calling.
 */
public class NamedSupplier implements Supplier {

    private final Supplier supplier;
    private String threadName;

    protected NamedSupplier(Supplier supplier) {
        this.supplier = supplier;
    }

    public static  NamedSupplier of(Supplier supplier) {
        return new NamedSupplier<>(supplier);
    }

    @Override
    public V get() {
        String oldThreadName = Thread.currentThread().getName();
        try {
            Thread.currentThread().setName(threadName.replace("{thread-id}", String.valueOf(Thread.currentThread().getId())));
            return supplier.get();
        } finally {
            Thread.currentThread().setName(oldThreadName);
        }
    }

}