Content of file OwnerRoleFactoryProvider.java.html
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../../jacoco-resources/report.gif" type="image/gif"/><title>OwnerRoleFactoryProvider.java</title><link rel="stylesheet" href="../../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../../index.html" class="el_report">TheseFoolishThings :: Examples :: DCI :: Persistence JPA</a> > <a href="../index.html" class="el_bundle">it-tidalwave-util</a> > <a href="index.source.html" class="el_package">it.tidalwave.role.spi</a> > <span class="el_source">OwnerRoleFactoryProvider.java</span></div><h1>OwnerRoleFactoryProvider.java</h1><pre class="source lang-java linenums">/*
* *********************************************************************************************************************
*
* TheseFoolishThings: Miscellaneous utilities
* http://tidalwave.it/projects/thesefoolishthings
*
* Copyright (C) 2009 - 2023 by Tidalwave s.a.s. (http://tidalwave.it)
*
* *********************************************************************************************************************
*
* 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.
*
* *********************************************************************************************************************
*
* git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
* git clone https://github.com/tidalwave-it/thesefoolishthings-src
*
* *********************************************************************************************************************
*/
package it.tidalwave.role.spi;
import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.Collection;
import it.tidalwave.util.LazySupplier;
import lombok.RequiredArgsConstructor;
import static it.tidalwave.role.impl.ServiceLoaderLocator.lazySupplierOf;
/***********************************************************************************************************************
*
* The provider of the singleton {@link OwnerRoleFactory}.
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
@FunctionalInterface
public interface OwnerRoleFactoryProvider
{
<span class="nc" id="L46"> static class Inner // TODO: will go away with Java 17</span>
will go away with Java 17
{
<span class="fc" id="L48"> private static final LazySupplier<OwnerRoleFactoryProvider> PROVIDER_REF =</span>
<span class="fc" id="L49"> lazySupplierOf(OwnerRoleFactoryProvider.class);</span>
<span class="fc" id="L51"> private static final LazySupplier<EmptyOwnerRoleFactory> EMPTY_REF =</span>
<span class="fc" id="L52"> LazySupplier.of(EmptyOwnerRoleFactory::new);</span>
}
/*******************************************************************************************************************
*
* Returns the singleton instance of {@link OwnerRoleFactoryProvider}
*
* @return the singleton instance
*
******************************************************************************************************************/
@Nonnull
public static OwnerRoleFactoryProvider getInstance ()
{
<span class="fc" id="L65"> return Inner.PROVIDER_REF.get();</span>
}
/*******************************************************************************************************************
*
* Creates an {@link OwnerRoleFactory} for the given object
*
* @param owner the object
* @return {@code AsDelegate}
*
******************************************************************************************************************/
@Nonnull
public OwnerRoleFactory createRoleFactory (@Nonnull Object owner);
/*******************************************************************************************************************
*
* Installs a {@link OwnerRoleFactory}. <b>This method is for testing only (used to set up a testing context).</b>
*
* @param ownerRoleFactory the {@link OwnerRoleFactory}
* @see #reset()
*
******************************************************************************************************************/
public static void set (@Nonnull final OwnerRoleFactory ownerRoleFactory)
{
<span class="fc" id="L89"> Inner.PROVIDER_REF.set(new SimpleOwnerRoleFactoryProvider(ownerRoleFactory));</span>
<span class="fc" id="L90"> }</span>
/*******************************************************************************************************************
*
* Removes a previously installed {@link OwnerRoleFactory}. <b>This method is for testing only (used to clean up a
* testing context).</b>
*
* @see #set(OwnerRoleFactory)
*
******************************************************************************************************************/
public static void reset()
{
<span class="fc" id="L102"> Inner.PROVIDER_REF.clear();</span>
<span class="fc" id="L103"> }</span>
/*******************************************************************************************************************
*
* Returns an empty implementation of factory. Useful for setting up a test environment.
*
* @return the empty implementation
* @since 3.2-ALPHA-1
*
******************************************************************************************************************/
@Nonnull
public static OwnerRoleFactory emptyRoleFactory()
{
<span class="fc" id="L116"> return Inner.EMPTY_REF.get();</span>
}
/*******************************************************************************************************************
*
******************************************************************************************************************/
<span class="pc bpc" id="L122" title="1 of 2 branches missed."> @RequiredArgsConstructor</span>
static class SimpleOwnerRoleFactoryProvider implements OwnerRoleFactoryProvider
{
@Nonnull
private final OwnerRoleFactory ownerRoleFactory;
@Override @Nonnull
public OwnerRoleFactory createRoleFactory (@Nonnull final Object owner)
{
<span class="fc" id="L131"> return ownerRoleFactory;</span>
}
}
/*******************************************************************************************************************
*
******************************************************************************************************************/
<span class="fc" id="L138"> static class EmptyOwnerRoleFactory implements OwnerRoleFactory</span>
{
@Override @Nonnull
public <T> Collection<T> findRoles (@Nonnull final Class<? extends T> type)
{
<span class="fc" id="L143"> return new ArrayList<>(); // must be mutable</span>
}
}
}
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