printingreport.java

java编写的OCR软件

package de.spieleck.app.jacson.report;

import de.spieleck.app.jacson.JacsonConfigException;
import de.spieleck.app.jacson.JacsonPrintReport;

import de.spieleck.app.jacson.JacsonState;
import de.spieleck.app.jacson.util.ConfigUtil;
import de.spieleck.config.ConfigNode;
import de.spieleck.config.ConfigVerify.Acceptor;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.LinkedList;


/**
 * Report that prints out everything in the property file format.
 * Also (ab)used as the baseclass of all reports that write to a file.
 * @author fsn
 * @author Patrick Carl
 */
public class PrintingReport
    implements JacsonPrintReport, Acceptor
{
    public final static String FILENAME_NODE = "filename";
    
    protected PrintWriter pw;

    protected LinkedList begins = new LinkedList();
    
    private JacsonState state;

    public PrintingReport() { }

    public void init(ConfigNode config)
        throws JacsonConfigException
    {
        begins.clear();
        useFilename(config);
        ConfigUtil.verify(config, this);
    }

    protected void useFilename(ConfigNode config)
        throws JacsonConfigException
    {
        useFilename(this, config);
    }
    
    /**
     * use a Filename but be able to give a default output stream
     */
    protected static void useFilename(JacsonPrintReport rep, ConfigNode conf, 
    OutputStream defaultOut) throws JacsonConfigException{    
        String fName = conf.getString(FILENAME_NODE, null);
        try
        {
            if ( fName != null ){
                rep.setOutputStream(new FileOutputStream(fName));
            }
            else
                rep.setOutputStream(defaultOut);
        }
        catch ( IOException e )
        {
            throw new JacsonConfigException("Error on outputfile <"+fName+">",e);
        }
    }
        
/*package*/ static void useFilename(JacsonPrintReport rep, ConfigNode conf)
        throws JacsonConfigException
    {
        useFilename(rep, conf, System.out);
    }

    public boolean accept(ConfigNode cn)
    {
        return cn.getName().equals(FILENAME_NODE);
    }

    public void setOutputStream(OutputStream os)
    {
        setPrintWriter(new PrintWriter(os));
    }

    public void setPrintWriter(PrintWriter pw)
    {
        this.pw = pw;
    }

    protected PrintWriter getPrintWriter()
    {
        return pw;
    }
    
    public void begin(String id)
    {
        begins.addLast(id);
    }

    public void report(String localName, String value)
    {
        Iterator it = begins.iterator();
        while ( it.hasNext() )
        {
            pw.print((String)it.next());
            pw.print('.');
        }
        pw.println(localName+"="+value);
        pw.flush();
    }

    public void end()
    {
        begins.removeLast();
    }

    public void finish()
    {
        finish(true);
    }

    public void finish(boolean close)
    {
        if ( close )
            pw.close();
        else
            pw.flush();
    }
    
    public void registerState(JacsonState state) 
    {
        this.state = state;
    }
    
    public JacsonState getRegState()
    {
        return state;
    }
    
}
//
//    Jacson - Text Filtering with Java.
//    Copyright (C) 2002 Frank S. Nestel (nestefan -at- users.sourceforge.net)
//
//    This library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Lesser General Public
//    License as published by the Free Software Foundation; either
//    version 2.1 of the License, or (at your option) any later version.
//
//    This library is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//    Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public
//    License along with this library; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//