From 3d982813b34f6f230baf4a467cdc37ec92a77595 Mon Sep 17 00:00:00 2001 From: netconomy Date: Fri, 17 Aug 2007 06:10:56 +0000 Subject: Performance git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@167 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../impl/input/CompoundPdfDataSourceImpl.java | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java (limited to 'src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java') diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java new file mode 100644 index 0000000..f77d6be --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java @@ -0,0 +1,47 @@ +/** + * + */ +package at.gv.egiz.pdfas.impl.input; + +import java.io.ByteArrayInputStream; +import java.io.InputStream; +import java.io.SequenceInputStream; + +import at.gv.egiz.pdfas.framework.input.DataSource; +import at.gv.egiz.pdfas.framework.input.PdfDataSource; + +/** + * @author wprinz + * + */ +public class CompoundPdfDataSourceImpl implements PdfDataSource +{ + protected DataSource originalDataSource = null; + + protected byte[] appendix = null; + + public CompoundPdfDataSourceImpl (PdfDataSource original, byte [] appendix) + { + this.originalDataSource = original; + this.appendix = appendix; + } + + /** + * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream() + */ + public InputStream createInputStream() + { + ByteArrayInputStream bais = new ByteArrayInputStream(this.appendix); + SequenceInputStream sis = new SequenceInputStream(this.originalDataSource.createInputStream(), bais); + return sis; + } + + /** + * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength() + */ + public int getLength() + { + return this.originalDataSource.getLength() + this.appendix.length; + } + +} -- cgit v1.2.3