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63 lines
1.9 KiB
63 lines
1.9 KiB
package com.github.jreddit.parser.listing;
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import java.util.LinkedList;
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import java.util.List;
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import org.json.simple.parser.ParseException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.github.jreddit.parser.entity.Comment;
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import com.github.jreddit.parser.entity.Submission;
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import com.github.jreddit.parser.entity.Thing;
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import com.github.jreddit.parser.entity.imaginary.MixedListingElement;
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import com.github.jreddit.parser.exception.RedditParseException;
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/**
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* Parser for a listing that has both submissions and comments mixed together.
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*
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* @author Simon Kassing
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*
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* @see MixedListingElement
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*/
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public class MixedListingParser extends RedditListingParser {
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private static final Logger LOGGER = LoggerFactory.getLogger(MixedListingParser.class);
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/**
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* Parse JSON received from reddit into a list of submissions and comments.
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* This parser expects the JSON to be of a listing of submissions and comments.
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*
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* @param jsonText JSON Text
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* @return Parsed list of submissions
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*
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* @throws ParseException
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*/
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public List<MixedListingElement> parse(String jsonText) throws RedditParseException {
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// Parse to a list of things
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List<Thing> things = this.parseGeneric(jsonText);
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// List of comment and submission mixed elements
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List<MixedListingElement> mixedElements = new LinkedList<MixedListingElement>();
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// Iterate over things
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for (Thing t : things) {
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if (t instanceof Comment) {
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mixedElements.add((Comment) t);
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} else if (t instanceof Submission) {
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mixedElements.add((Submission) t);
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} else {
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LOGGER.warn("Encountered an unexpected reddit thing (" + t.getKind().value() + "), skipping it.");
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}
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}
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// Return result
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return mixedElements;
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}
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}
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