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<?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>DirectoryDrewLoader.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 HistogramViewer</a> &gt; <a href="../index.html" class="el_bundle">image-core</a> &gt; <a href="index.source.html" class="el_package">it.tidalwave.image.metadata.loader</a> &gt; <span class="el_source">DirectoryDrewLoader.java</span></div><h1>DirectoryDrewLoader.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 &quot;License&quot;); 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 &quot;AS IS&quot; 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.metadata.loader;

import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import java.util.List;
import java.util.NoSuchElementException;
import com.drew.metadata.Directory;
import it.tidalwave.image.Rational;

/***********************************************************************************************************************
 *
 * @author Fabrizio Giudici
 *
 **********************************************************************************************************************/
public class DirectoryDrewLoader implements DirectoryLoader
  {
    @Nonnull
    private final List&lt;? extends Directory&gt; directories;

    private final Directory directory;

    @Nonnegative
    private final int index;

    /*******************************************************************************************************************
     *
     ******************************************************************************************************************/
    public DirectoryDrewLoader (@Nonnull final List&lt;? extends Directory&gt; directories, @Nonnegative int index)
<span class="fc" id="L55">      {</span>
<span class="fc" id="L56">        this.directories = directories;</span>
<span class="fc" id="L57">        this.index = index;</span>
<span class="fc" id="L58">        this.directory = directories.get(index);</span>
<span class="fc" id="L59">      }</span>

    /*******************************************************************************************************************
     * {@inheritDoc}
     ******************************************************************************************************************/
    @SuppressWarnings(&quot;unchecked&quot;)
    @Override @Nonnull
    public int[] getTags()
      {
<span class="fc" id="L68">        final var result = new int[directory.getTagCount()];</span>
<span class="fc" id="L69">        var j = 0;</span>

<span class="fc bfc" id="L71" title="All 2 branches covered.">        for (final var tag : directory.getTags())</span>
          {
<span class="fc" id="L73">            result[j++] = tag.getTagType();</span>
<span class="fc" id="L74">          }</span>

<span class="fc" id="L76">        return result;</span>


        /** TODO

         var xmp = new XMP();
         xmp.loadFromAdapter(xmpAdapter);
         xmp._setProperties(xmpDirectory.getXmpProperties()); // FIXME 18 e 19
         return xmp;
         */
      }

    /*******************************************************************************************************************
     * {@inheritDoc}
     ******************************************************************************************************************/
    @Override @Nonnull
    public Object getObject (final int tag)
            throws NoSuchElementException
      {
<span class="fc" id="L94">        checkIfTagExists(tag);</span>
<span class="fc" id="L95">        return convertType(directory.getObject(tag));</span>
      }

    /*******************************************************************************************************************
     * {@inheritDoc}
     ******************************************************************************************************************/
    @Override @Nonnull
    public String getTagName (final int tag)
      {
<span class="nc" id="L104">        checkIfTagExists(tag);</span>
<span class="nc" id="L105">        return directory.getTagName(tag);</span>
      }

    /*******************************************************************************************************************
     * {@inheritDoc}
     ******************************************************************************************************************/
    @Override
    public boolean containsTag (final int tag)
      {
<span class="fc" id="L114">        return directory.containsTag(tag);</span>
      }

    /*******************************************************************************************************************
     * {@inheritDoc}
     ******************************************************************************************************************/
    @Override @Nonnull
    public DirectoryLoader next()
      {
<span class="fc" id="L123">        return new DirectoryDrewLoader(directories, index + 1);</span>
      }

    /*******************************************************************************************************************
     * {@inheritDoc}
     ******************************************************************************************************************/
    @Override
    public boolean hasNext()
      {
<span class="fc bfc" id="L132" title="All 2 branches covered.">        return index + 1 &lt; directories.size();</span>
      }

    /*******************************************************************************************************************
     *
     ******************************************************************************************************************/
    private void checkIfTagExists (final int tag)
            throws NoSuchElementException
      {
<span class="pc bpc" id="L141" title="1 of 2 branches missed.">        if (!containsTag(tag))</span>
          {
<span class="nc" id="L143">            throw new NoSuchElementException(&quot;&quot; + tag);</span>
          }
<span class="fc" id="L145">      }</span>

    /*******************************************************************************************************************
     *
     ******************************************************************************************************************/
    @Nonnull
    private static Object convertType (final @Nonnull Object value)
      {
<span class="fc bfc" id="L153" title="All 2 branches covered.">        if (value instanceof com.drew.lang.Rational)</span>
          {
<span class="fc" id="L155">            final var drewRational = (com.drew.lang.Rational)value;</span>
<span class="fc" id="L156">            return Rational.of((int)drewRational.getNumerator(), (int)drewRational.getDenominator());</span>
          }
<span class="fc bfc" id="L158" title="All 2 branches covered.">        else if (value instanceof com.drew.lang.Rational[])</span>
          {
<span class="fc" id="L160">            return convertType((com.drew.lang.Rational[])value);</span>
          }

<span class="fc" id="L163">        return value;</span>
      }

    /*******************************************************************************************************************
     *
     ******************************************************************************************************************/
    @Nonnull
    private static Rational[] convertType (final @Nonnull com.drew.lang.Rational[] temp)
      {
<span class="fc" id="L172">        final var r = new Rational[temp.length];</span>

<span class="fc bfc" id="L174" title="All 2 branches covered.">        for (var i = 0; i &lt; r.length; i++)</span>
          {
<span class="fc" id="L176">            r[i] = Rational.of((int)temp[i].getNumerator(), (int)temp[i].getDenominator());</span>
          }

<span class="fc" id="L179">        return r;</span>
      }
  }
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