/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

/*
 * StringBuilderNewLineAppender.java
 *
 * Created on July 21, 2005, 12:23 PM
 */

package com.sun.enterprise.admin.mbeans.jvm;
import java.io.*;

/**
 */
class StringBuilderNewLineAppender {
    
    private  StringBuilder sb;
    private 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();
    }

}