<?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>ImplementationFactory.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">Mistral Examples CustomOperation</a> > <a href="../index.html" class="el_bundle">image-core</a> > <a href="index.source.html" class="el_package">it.tidalwave.image.op</a> > <span class="el_source">ImplementationFactory.java</span></div><h1>ImplementationFactory.java</h1><pre class="source lang-java linenums">/*
* *********************************************************************************************************************
*
* Mistral: open source imaging engine
* http://tidalwave.it/projects/mistral
*
* Copyright (C) 2003 - 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/mistral-src
* git clone https://github.com/tidalwave-it/mistral-src
*
* *********************************************************************************************************************
*/
package it.tidalwave.image.op;
import javax.annotation.Nonnull;
import java.util.HashMap;
import java.util.Map;
import java.awt.image.BufferedImage;
import it.tidalwave.image.ImageModel;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.ToString;
import lombok.extern.slf4j.Slf4j;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
<span class="pc bpc" id="L44" title="1 of 2 branches missed.">@RequiredArgsConstructor @ToString(of = "modelClass") @Slf4j</span>
public abstract class ImplementationFactory
{
<span class="fc" id="L47"> @Getter @Nonnull</span>
private final Class modelClass;
<span class="fc" id="L50"> private final Map<Class<? extends Operation>, Class<? extends OperationImplementation>> implementationMapping =</span>
new HashMap<>();
/*******************************************************************************************************************
*
*
******************************************************************************************************************/
public void registerImplementation (@Nonnull final Class<? extends Operation> operationClass,
@Nonnull final Class<? extends OperationImplementation> implementationClass)
{
<span class="fc" id="L60"> implementationMapping.put(operationClass, implementationClass);</span>
<span class="fc" id="L61"> }</span>
/*******************************************************************************************************************
*
*
******************************************************************************************************************/
public void unregisterImplementation (@Nonnull final Class<? extends Operation> operationClass)
{
<span class="nc" id="L69"> implementationMapping.remove(operationClass);</span>
<span class="nc" id="L70"> }</span>
/*******************************************************************************************************************
*
* Finds the concrete implementation for a given operation.
*
* @param operation operation
* @return the implementation (null if not supported)
*
******************************************************************************************************************/
@Nonnull
public OperationImplementation<Operation, Object> findImplementation (@Nonnull final Operation operation)
{
<span class="fc" id="L83"> final var implementationClass =</span>
<span class="fc" id="L84"> (Class<OperationImplementation<Operation, Object>>)implementationMapping.get(operation.getClass());</span>
<span class="pc bpc" id="L86" title="1 of 2 branches missed."> if (implementationClass != null)</span>
{
try
{
<span class="fc" id="L90"> final var implementation = implementationClass.newInstance();</span>
// FIXME: drop these setters and pass to the constructor, so the object is truly immutable
drop these setters and pass to the constructor, so the object is truly immutable
<span class="fc" id="L92"> implementation.setFactory(this);</span>
<span class="fc" id="L93"> implementation.bind(operation);</span>
<span class="fc" id="L95"> return implementation;</span>
}
<span class="nc" id="L97"> catch (IllegalAccessException | InstantiationException e)</span>
{
<span class="nc" id="L99"> log.error("findImplementation()", e);</span>
}
}
<span class="nc" id="L103"> return null;</span>
}
/*******************************************************************************************************************
*
*
******************************************************************************************************************/
@Nonnull
public ImageModel createImageModel (@Nonnull final BufferedImage image)
{
<span class="nc" id="L113"> throw new UnsupportedOperationException();</span>
}
/*******************************************************************************************************************
*
* Return true if we can convert the given imageClass into our specific image
* class.
*
******************************************************************************************************************/
public abstract boolean canConvertFrom (@Nonnull Class imageClass);
/*******************************************************************************************************************
*
* Converts the given image into our specific image representation.
*
******************************************************************************************************************/
@Nonnull
public abstract ImageModel convertFrom (@Nonnull Object image);
/*******************************************************************************************************************
*
*
******************************************************************************************************************/
public abstract boolean canConvertTo (@Nonnull Class<?> imageClass);
/*******************************************************************************************************************
*
*
******************************************************************************************************************/
@Nonnull
public abstract Object convertTo (@Nonnull Object image);
}
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