/** * Copyright 2006 by Know-Center, Graz, Austria * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a * joint initiative of the Federal Chancellery Austria and Graz University of * Technology. * * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by * the European Commission - subsequent versions of the EUPL (the "Licence"); * You may not use this work except in compliance with the Licence. * You may obtain a copy of the Licence at: * http://www.osor.eu/eupl/ * * Unless required by applicable law or agreed to in writing, software * distributed under the Licence is distributed on an "AS IS" basis, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the Licence for the specific language governing permissions and * limitations under the Licence. * * This product combines work with different licenses. See the "NOTICE" text * file for details on the various modules and licenses. * The "NOTICE" text file is part of the distribution. Any derivative works * that you distribute must include a readable copy of the "NOTICE" text file. */ package at.gv.egiz.pdfas.impl.input; import java.io.InputStream; import at.gv.egiz.pdfas.framework.input.PdfDataSource; /** * @author wprinz * */ public class DelimitedPdfDataSource implements PdfDataSource { protected PdfDataSource dataSource = null; protected int len = -1; public DelimitedPdfDataSource (PdfDataSource original, int length) { this.dataSource = original; this.len = length; } /** * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream() */ public InputStream createInputStream() { InputStream originalIS = this.dataSource.createInputStream(); DelimitedInputStream dis = new DelimitedInputStream(originalIS, this.len); return dis; } /** * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength() */ public int getLength() { return this.len; } byte [] cache = null; /** * @see at.gv.egiz.pdfas.framework.input.DataSource#getAsByteArray() */ public byte[] getAsByteArray() { if (cache != null) { return cache; } cache = new byte [getLength()]; System.arraycopy(dataSource.getAsByteArray(), 0, cache, 0, getLength()); return cache; } }