001/*
002 * Copyright 2014 Konik.io
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package io.konik.harness;
017
018import java.io.InputStream;
019
020/**
021 * 
022 * Extracts the attachment file from a given PDF.
023 */
024public interface FileExtractor {
025   
026   /**
027    * Extract from PDF Input Stream
028    *
029    * @param pdfInput the pdf input
030    * @return the byte[]
031    */
032   byte[] extract(InputStream pdfInput);
033   
034   
035   /**
036    * Extract from PDF into Input Stream.
037    * 
038    * The caller is responsible to close the InputStream after finishing reading.
039    *
040    * @param pdfInput the pdf input stream
041    * @return the input stream
042    */
043    InputStream extractToStream(InputStream pdfInput);
044}