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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.ietf.ldap.util;
import java.util.*;
import org.ietf.ldap.*;
import java.io.*;
/**
* Abstract class for outputting LDAP entries to a stream.
*
* @version 1.0
*/
public abstract class LDAPWriter implements Serializable {
// static final long serialVersionUID = -2710382547996750924L;
protected PrintWriter m_pw;
private static MimeBase64Encoder m_encoder = new MimeBase64Encoder();
/**
* Constructs an <CODE>LDAPWriter</CODE> object to output entries
* to a stream.
*
* @param pw output stream
*/
public LDAPWriter( PrintWriter pw ) {
m_pw = pw;
}
/**
* The main method of LDAPWriter. It calls printEntryIntro,
* printAttribute, and printEntryEnd of derived classes.
*
* @param entry an LDAPEntry to be formatted to the output
* stream
*/
public void printEntry( LDAPEntry entry ) throws IOException {
printEntryStart( entry.getDN() );
/* Get the attributes of the entry */
LDAPAttributeSet attrs = entry.getAttributeSet();
Iterator enumAttrs = attrs.iterator();
/* Loop on attributes */
while ( enumAttrs.hasNext() ) {
LDAPAttribute anAttr =
(LDAPAttribute)enumAttrs.next();
printAttribute( anAttr );
}
printEntryEnd( entry.getDN() );
}
/**
* Default schema writer - assumes an ordinary entry
*
* @param entry an LDAPEntry containing schema to be formatted
* to the output stream
*/
public void printSchema( LDAPEntry entry ) throws IOException {
printEntry( entry );
}
/**
* Print an attribute of an entry
*
* @param attr the attribute to format to the output stream
*/
protected abstract void printAttribute( LDAPAttribute attr );
/**
* Print prologue to entry
*
* @param dn the DN of the entry
*/
protected abstract void printEntryStart( String dn );
/**
* Print epilogue to entry
*
* @param dn the DN of the entry
*/
protected abstract void printEntryEnd( String dn );
protected String getPrintableValue( byte[] b ) {
String s = "";
ByteBuf inBuf = new ByteBuf( b, 0, b.length );
ByteBuf encodedBuf = new ByteBuf();
// Translate to base 64
m_encoder.translate( inBuf, encodedBuf );
int nBytes = encodedBuf.length();
if ( nBytes > 0 ) {
s = new String(encodedBuf.toBytes(),
0, nBytes);
}
return s;
}
}
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