org.yesworkflow.annotations.Annotation Maven / Gradle / Ivy

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package org.yesworkflow.annotations;

import java.util.NoSuchElementException;
import java.util.StringTokenizer;

import org.yesworkflow.YWKeywords.Tag;
import org.yesworkflow.exceptions.YWMarkupException;

public abstract class Annotation {

    public final Long id;
    public final Long sourceId;
    public final Long lineNumber;
    public final String keyword;
    protected String value;
    public final String comment;
    public final Tag tag;

    private Desc description = null;
    
    public Annotation(Long id, Long sourceId, Long lineNumber, String comment, Tag tag) throws YWMarkupException {

        this.id = id;
        this.sourceId = sourceId;
        this.lineNumber = lineNumber;
        this.comment = comment;
        this.tag = tag;
        
        StringTokenizer commentTokens = new StringTokenizer(comment);
        
        keyword = commentTokens.nextToken();
        String expectedKeyword = "@" + tag.toString();
        if (!keyword.equalsIgnoreCase(expectedKeyword)) {
            throw new YWMarkupException("Wrong keyword for " + expectedKeyword.toLowerCase() + " annotation: " + keyword);
        }
       
        try {
            value = commentTokens.nextToken();
        } catch (NoSuchElementException e) {
            throw new YWMarkupException("No argument provided to " + keyword + " keyword on line " + lineNumber);
        }
    }

	public Annotation qualifyWith(Qualification qualification) throws Exception {		
	    if (qualification instanceof Desc) {
            this.description = (Desc)qualification;
        }
        return this;
	}
	
	public String value() {
	    return value;
	}
	
	public String description() {
	    return (description != null) ? description.value : null;
	}

}