/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE file.
*/
package org.apache.james.nntpserver.repository;
import org.apache.james.nntpserver.NNTPException;
import javax.mail.internet.InternetHeaders;
import java.io.*;
/**
* Please see NNTPArticle for comments
*
* @author Harmeet Bedi <harmeet@kodemuse.com>
*/
class NNTPArticleImpl implements NNTPArticle {
private final File f;
NNTPArticleImpl(File f) {
this.f = f;
}
public NNTPGroup getGroup() {
return new NNTPGroupImpl(f.getParentFile());
}
public int getArticleNumber() {
return Integer.parseInt(f.getName());
}
public String getUniqueID() {
try {
FileInputStream fin = new FileInputStream(f);
InternetHeaders headers = new InternetHeaders(fin);
String[] idheader = headers.getHeader("Message-Id");
fin.close();
return ( idheader.length > 0 ) ? idheader[0] : null;
} catch(Exception ex) { throw new NNTPException(ex); }
}
public void writeArticle(PrintWriter prt) {
try {
BufferedReader reader = new BufferedReader(new FileReader(f));
String line = null;
while ( ( line = reader.readLine() ) != null )
prt.println(line);
reader.close();
} catch(IOException ex) { throw new NNTPException(ex); }
}
public void writeHead(PrintWriter prt) {
try {
BufferedReader reader = new BufferedReader(new FileReader(f));
String line = null;
while ( ( line = reader.readLine() ) != null ) {
if ( line.trim().length() == 0 )
break;
prt.println(line);
}
reader.close();
} catch(IOException ex) { throw new NNTPException(ex); }
}
public void writeBody(PrintWriter prt) {
try {
BufferedReader reader = new BufferedReader(new FileReader(f));
String line = null;
boolean startWriting = false;
while ( ( line = reader.readLine() ) != null ) {
if ( startWriting )
prt.println(line);
else
startWriting = ( line.trim().length() == 0 );
}
reader.close();
} catch(IOException ex) { throw new NNTPException(ex); }
}
public void writeOverview(PrintWriter prt) {
try {
FileInputStream fin = new FileInputStream(f);
InternetHeaders hdr = new InternetHeaders(fin);
fin.close();
int articleNumber = getArticleNumber();
String subject = hdr.getHeader("Subject",null);
String author = hdr.getHeader("From",null);
String date = hdr.getHeader("Date",null);
String msgId = hdr.getHeader("Message-Id",null);
String references = hdr.getHeader("References",null);
long byteCount = f.length();
long lineCount = -1;
prt.print(articleNumber+"\t");
prt.print((subject==null?"":subject)+"\t");
prt.print((author==null?"":author)+"\t");
prt.print((date==null?"":date)+"\t");
prt.print((msgId==null?"":msgId)+"\t");
prt.print((references==null?"":references)+"\t");
prt.print(byteCount+"\t");
prt.println(lineCount+"");
} catch(Exception ex) { throw new NNTPException(ex); }
}
public String getHeader(String header) {
try {
FileInputStream fin = new FileInputStream(f);
InternetHeaders hdr = new InternetHeaders(fin);
fin.close();
return hdr.getHeader(header,null);
} catch(Exception ex) { throw new NNTPException(ex); }
}
}