src/dochelper/DocPattern.java

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/*
 * BLPattern.java
 *
 * Created on November 12, 2008, 2:34 PM
 *
 * Copyright 2009 Online Nederland Breedband B.V.
 * See the COPYRIGHT file for redistribution and use restrictions.
 * Authors: Guillermo Christen <guillermo.christen@is.online.nl>
 */
package dochelper;

import java.util.HashMap;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

public class DocPattern implements TransformDefinition {
        
    TransformDefinition node;
    
    Pattern regExp;
    
    /*
     * String: Name of this pattern. Used to uniquley identify patterns. The
     * pattern itself is not used since there may be two reg exp patterns 
     * with different RenderDefinitions.
     */
    private String name;
    
    //HashMap: parameter the describe this pattern
    HashMap<String, String> params;
    
    public DocPattern(String pattern) throws PatternSyntaxException {
        this.regExp = Pattern.compile(pattern);        
        this.params = new HashMap<String, String>();
        params.put("expression", pattern);
    }

    public DocPattern(String pattern, TransformDefinition transform) throws PatternSyntaxException {
        this(pattern);
        this.node = transform;        
        params.put("transform", this.node.getText());
        params.put("expression", pattern);
    }    
    
    public ResultNode execute(String value) {
        
        ResultNode result = new ResultNode(null, params, name);

        //if no RenderDefinitionImplementation is available do nothing.
        if(node == null)
            return result;
        
        //Match the pattern represented by this object within the value passed in        
        Matcher match = regExp.matcher(value);
        
        //For every match create a result node and add.
        //If there is a node definition execute it
        while(match.find()) {
            ResultNode leaf = new ResultNode(node.render(match.toMatchResult()), null, "Match");
            result.addChild(leaf);
        }        
       
        return result;
    }    

    public String render(MatchResult mr) {        
        return null;
    }    
    
    public String getText() {
        return null;
    }        

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

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