StringBuilderNewLineAppender.java

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package com.sun.enterprise.v3.admin.commands;
import java.io.*;

/**
 */
class StringBuilderNewLineAppender {
    
    private  StringBuilder sb;
    static final String SEP = System.getProperty("line.separator");
    /** Creates a new instance of StringBuilderNewLineAppender */
    StringBuilderNewLineAppender(final StringBuilder sb) {
        this.sb = sb;
    }
    StringBuilderNewLineAppender append(final String s) {
        sb.append(s);
        sb.append(SEP);
        return ( this );
    }
    public String toString() {
        return ( sb.toString() );
    }
    public String toString(String... filterOut) {
        String sbString = sb.toString();
        BufferedReader in = new BufferedReader(new StringReader(sbString));
		sb = new StringBuilder();
		
		try
		{
			readloop:
			for(String s = in.readLine(); s != null; s = in.readLine()){
				for(String filter : filterOut){
					if(s.startsWith(filter))
						continue readloop; // continue to outer loop
				}
				append(s);
			}
		}
		catch(Exception e)
		{
			// bail
			return sbString;
		}
        
		return toString();
    }

}