package org.infinispan.configuration.global;

import java.util.Properties;

import org.infinispan.commons.configuration.Builder;
import org.infinispan.commons.executors.ExecutorFactory;
import org.infinispan.commons.util.TypedProperties;
import org.infinispan.executors.DefaultExecutorFactory;

/**
 * Configures executor factory.
 */
public class ExecutorFactoryConfigurationBuilder extends AbstractGlobalConfigurationBuilder implements Builder<ExecutorFactoryConfiguration> {

   private ExecutorFactory factory = new DefaultExecutorFactory();
   private Properties properties;

   ExecutorFactoryConfigurationBuilder(GlobalConfigurationBuilder globalConfig) {
      super(globalConfig);
      this.properties = new Properties();
   }

   /**
    * Specify factory class for executor
    *
    * NOTE: Currently Infinispan will not use the object instance, but instead instantiate a new
    * instance of the class. Therefore, do not expect any state to survive, and provide a no-args
    * constructor to any instance. This will be resolved in Infinispan 5.2.0
    *
    * @param factory clazz
    * @return this ExecutorFactoryConfig
    */
   public ExecutorFactoryConfigurationBuilder factory(ExecutorFactory factory) {
      this.factory = factory;
      return this;
   }

   /**
    * Add key/value property pair to this executor factory configuration
    *
    * @param key   property key
    * @param value property value
    * @return this ExecutorFactoryConfig
    */
   public ExecutorFactoryConfigurationBuilder addProperty(String key, String value) {
      this.properties.put(key, value);
      return this;
   }

   /**
    * Set key/value properties to this executor factory configuration
    *
    * @param props Properties
    * @return this ExecutorFactoryConfig
    */
   public ExecutorFactoryConfigurationBuilder withProperties(Properties props) {
      this.properties = props;
      return this;
   }

   @Override
   public void validate() {
      // No-op, no validation required
   }

   @Override
   public ExecutorFactoryConfiguration create() {
      return new ExecutorFactoryConfiguration(factory, TypedProperties.toTypedProperties(properties));
   }

   @Override
   public ExecutorFactoryConfigurationBuilder read(ExecutorFactoryConfiguration template) {
      this.factory = template.factory();
      this.properties = new Properties();
      this.properties.putAll(template.properties());
      return this;
   }

   @Override
   public String toString() {
      return "ExecutorFactoryConfigurationBuilder{" +
            "factory=" + factory +
            ", properties=" + properties +
            '}';
   }

   @Override
   public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;

      ExecutorFactoryConfigurationBuilder that = (ExecutorFactoryConfigurationBuilder) o;

      if (factory != null ? !factory.equals(that.factory) : that.factory != null)
         return false;
      if (properties != null ? !properties.equals(that.properties) : that.properties != null)
         return false;

      return true;
   }

   @Override
   public int hashCode() {
      int result = factory != null ? factory.hashCode() : 0;
      result = 31 * result + (properties != null ? properties.hashCode() : 0);
      return result;
   }

}