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POGroovy: Using Closure to create and return Map Elements
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  1. POGroovy: Using Closure to create and return Map Elements
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    copied!<p>I am importing an XML and then creating a list of objects based on the information from the XML.</p> <p>This is a sample of my XML:</p> <pre><code>&lt;DCUniverse&gt; &lt;SuperHeroes&gt; &lt;SuperHero&gt; &lt;SuperHeroName&gt;SuperMan&lt;/SuperHeroName&gt; &lt;SuperHeroDesc&gt;Surviver of Krypton; Son of Jor-el&lt;/SuperHeroDesc&gt; &lt;SuperHeroCode&gt;SM&lt;/SuperHeroCode&gt; &lt;SuperHeroAttrs&gt; &lt;SuperHeroAttr Name="Strength"&gt;All&lt;/SuperHeroAttr&gt; &lt;SuperHeroAttr Name="Weakness"&gt;Kryptonite&lt;/SuperHeroAttr&gt; &lt;SuperHeroAttr Name="AlterEgo"&gt;Clark Kent&lt;/SuperHeroAttr&gt; &lt;/SuperHeroAttrs&gt; &lt;/SuperHero&gt; &lt;SuperHero&gt; &lt;SuperHeroName&gt;Batman&lt;/SuperHeroName&gt; &lt;SuperHeroDesc&gt;The Dark Knight of Gothom City&lt;/SuperHeroDesc&gt; &lt;SuperHeroCode&gt;BM&lt;/SuperHeroCode&gt; &lt;SuperHeroAttrs&gt; &lt;SuperHeroAttr Name="Strength"&gt;Intellect&lt;/SuperHeroAttr&gt; &lt;SuperHeroAttr Name="Weakness"&gt;Bullets&lt;/SuperHeroAttr&gt; &lt;SuperHeroAttr Name="AlterEgo"&gt;Bruce Wayne&lt;/SuperHeroAttr&gt; &lt;/SuperHeroAttrs&gt; &lt;/SuperHero&gt; &lt;/SuperHeroes&gt; &lt;DCUniverse&gt; </code></pre> <p>Here is an example of the groovy script that I am running to create the objects:</p> <pre><code>class Hero{ def SuperHeroName def SuperHeroDesc def SuperHeroCode def SuperHeroAttrLst = [:] Hero(String name, String desc, String code, attrLst){ this.SuperHeroName=name this.SuperHeroDesc=desc this.SuperHeroCode=code this.SuperHeroAttrLst.putAll(attrLst) } } def heroList = [] def heroDoc = new XmlParser().parse('dossier.xml') heroDoc.SuperHeroes.each{ faction -&gt; faction.SuperHero.each{ hero -&gt; heroList += new Hero( hero.SuperHeroName.text(), hero.SuperHeroDesc.text(), hero.SuperHeroCode.text(), hero.SuperHeroAttrs.SuperHeroAttr.each{ attr -&gt; return [ (attr.'@Name') : (attr.text()) ] }) } } </code></pre> <p>When I run the above code, I get the following error:</p> <pre><code>java.lang.ClassCastException: groovy.util.Node cannot be cast to java.util.Map$Entry </code></pre> <p>I have a strong feeling that it has something to do with the last variable that the closure is trying to send to Hero Class Constructor. Commenting out </p> <pre><code>this.SuperHeroAttrLst.putAll(attrLst) </code></pre> <p>in the Hero Constructor allows the script to at least parse correctly. What I am trying to do is create a class based on the XML and place it in the list like:</p> <pre><code>heroList += new Hero('Batman', 'The Dark Knight of Gothom City', 'BM', ['Strength':'Intellect', 'Weakness':'Bullets', 'AlterEgo':'Bruce Wayne'] ) </code></pre> <p>However, my variable typing is incorrect and I dont know enough about Groovy's (or Java's) syntax to make it work.</p> <p>Any help that can be provided would be much appreciated. Thank you for your time.</p>
 

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