diff options
| author | netconomy <netconomy@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2007-08-17 06:10:56 +0000 |
|---|---|---|
| committer | netconomy <netconomy@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2007-08-17 06:10:56 +0000 |
| commit | 3d982813b34f6f230baf4a467cdc37ec92a77595 (patch) | |
| tree | 85319d39cee2ded1bb7a2b2dd9e8ea37e3778248 /src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java | |
| parent | 07f6c8f33b2d700276fe6ec6339ff836c8710131 (diff) | |
| download | pdf-as-3-3d982813b34f6f230baf4a467cdc37ec92a77595.tar.gz pdf-as-3-3d982813b34f6f230baf4a467cdc37ec92a77595.tar.bz2 pdf-as-3-3d982813b34f6f230baf4a467cdc37ec92a77595.zip | |
Performance
git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@167 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
Diffstat (limited to 'src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java')
| -rw-r--r-- | src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java new file mode 100644 index 0000000..8453192 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java @@ -0,0 +1,103 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+/**
+ * @author wprinz
+ *
+ */
+public class FileBasedPdfDataSourceImpl implements PdfDataSource, FileBased
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(FileBasedPdfDataSourceImpl.class);
+
+ /**
+ * The underlying file.
+ */
+ protected File inputFile = null;
+
+ protected int length = -1;
+
+ /**
+ * Constructor that creates this PdfDataSource backed by a file in the file
+ * system.
+ *
+ * @param file
+ * The input File.
+ * @param length
+ * The length of the InputStream. The is the maximum number of bytes
+ * that can be read from the stream.
+ * @throws IOException
+ * Thrown if the file cannot be read properly.
+ */
+ public FileBasedPdfDataSourceImpl(File file, int length) throws IOException
+ {
+
+ if (!file.exists())
+ {
+ throw new FileNotFoundException("The file '" + file + "' does not exist.");
+ }
+ // for some reason the isFile is not always correct...
+ // if (file.isFile())
+ // {
+ // throw new IOException("The file '" + file + "' is not a normal file.");
+ // }
+ if (!file.canRead())
+ {
+ throw new IOException("The file '" + file + "' cannot be read.");
+ }
+
+ this.inputFile = file;
+ this.length = length;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.impl.input.FileBased#getFile()
+ */
+ public File getFile()
+ {
+ return this.inputFile;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.PdfDataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ try
+ {
+ FileInputStream fis = new FileInputStream(getFile());
+ DelimitedInputStream dis = new DelimitedInputStream(fis, getLength());
+ return dis;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't create InputStream for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.PdfDataSource#getLength()
+ */
+ public int getLength()
+ {
+ return this.length;
+ }
+}
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