/**

 * Razvan's public code. 

 * Copyright 2008 based on Apache license (share alike) see LICENSE.txt for details.

 */

package com.razie.pubstage.comms;



import java.util.ArrayList;

import java.util.List;



import com.razie.pub.comms.Comms;



/**

 * a two way STRING communication channel. Adds filtering functionality

 * 

 * @author razvanc99

 * 

 */

public class StrCommProxy extends StrCommStream {

    List<IStrFilter> filters;

    private StrCommStream proxy;



    /** empty channel - is is null*/

    protected StrCommProxy(StrCommStream proxy) {

        this.proxy=proxy;

    }



    /** will read all incoming until the channel is empty */

    public String readAll() {

        String s = Comms.readStream(is);

        if (filters != null)

            for (IStrFilter f : filters)

                s = f.filter(s);

        return s;

    }



    /**

     * will read incoming until the end of line OR the channel is empty

     * 

     * @return the next line in hte stream or NULL if empty

     */

    public String readLine() {

        return proxy.readLine();

    }



    public void setFilters(IStrFilter... f) {

        if (filters == null)

            filters = new ArrayList<IStrFilter>();

        for (IStrFilter fi : f)

            filters.add(fi);

    }

}