com.itextpdf.text.log.Counter Maven / Gradle / Ivy
/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2020 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS.
*
* This program 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 Affero General Public License for more
* details. You should have received a copy of the GNU Affero General Public
* License along with this program; if not, see http://www.gnu.org/licenses or
* write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License, a
* covered work must retain the producer line in every PDF that is created or
* manipulated using iText.
*
* You can be released from the requirements of the license by purchasing a
* commercial license. Buying such a license is mandatory as soon as you develop
* commercial activities involving the iText software without disclosing the
* source code of your own applications. These activities include: offering paid
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*/
package com.itextpdf.text.log;
/**
* Interface that can be implemented if you want to count the number of documents
* that are being processed by iText.
*
* Implementers may use this method to record actual system usage for licensing purposes
* (e.g. count the number of documents or the volumne in bytes in the context of a SaaS license).
*/
public interface Counter {
/** Gets a Counter instance for a specific class. */
Counter getCounter(Class klass);
/**
* This method gets triggered if a file is read.
* @param l the length of the file that was written
*/
void read(long l);
/**
* This method gets triggered if a file is written.
* @param l the length of the file that was written
*/
void written(long l);
}