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GEARS Runtime Common

There is a newer version: 1.17.6

package com.xlrit.gears.base.repository;

import java.util.Collection;
import java.util.List;

import com.xlrit.gears.base.collection.FixedSizeList;
import com.xlrit.gears.base.event.EntityEventManager;
import com.xlrit.gears.base.execution.Execution;
import com.xlrit.gears.base.function.DefaultFunctions;
import com.xlrit.gears.base.model.Publishable;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.domain.Specification;

public abstract class AbstractRepository implements Repository {

	protected final Class entityType;

	@Autowired
	protected EntityEventManager entityEventManager;

	protected AbstractRepository(Class entityType) {
		this.entityType = entityType;
	}

	public Class getEntityType() {
		return entityType;
	}

	public T findById(String id) { throw new UnsupportedOperationException(); }
	public List findAll() { throw new UnsupportedOperationException(); }
	public List findMany(Specification spec) { throw new UnsupportedOperationException(); }

	public T create(Execution execution) {
		return doCreate(execution);
	}

	public List createCollection(Execution execution, List linkedElements) {
		return new FixedSizeList<>(entityType, linkedElements.size());
	}

	public void remove(T instance, Execution execution) {
		doRemove(instance, execution);
	}

	public void removeAll(Collection instances, Execution execution) {
		for (T instance : instances) {
			doRemove(instance, execution);
		}
	}

	public void publish(T instance, Execution execution) {
		doPublish(instance, execution);
	}

	protected abstract T doCreate(Execution execution);
	protected abstract void doRemove(T instance, Execution execution);

	protected void doPublish(T instance, Execution execution) {
		if (instance instanceof Publishable publishable) {
			publishable.setPublishedAt(DefaultFunctions.currentDatetime());
			publishable.setPublisher(execution.getCurrentUser());
		}
		entityEventManager.fireElementPublished(entityType, instance);
	}
}