From 61a2d23ef72630934c603fe9ffb96ebebff6ee09 Mon Sep 17 00:00:00 2001
From: netconomy <netconomy@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Thu, 29 Nov 2007 12:00:22 +0000
Subject: PDF-AS API

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@233 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../at/gv/egiz/pdfas/io/FileBasedDataSource.java   | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java

(limited to 'src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java')

diff --git a/src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java b/src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java
new file mode 100644
index 0000000..fd56bfe
--- /dev/null
+++ b/src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java
@@ -0,0 +1,121 @@
+/**
+ * 
+ */
+package at.gv.egiz.pdfas.io;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.api.io.DataSource;
+import at.gv.egiz.pdfas.api.io.FileBased;
+import at.gv.egiz.pdfas.impl.input.helper.DataSourceHelper;
+
+/**
+ * A FileBased DataSource implementation.
+ * 
+ * @author wprinz
+ */
+public class FileBasedDataSource implements DataSource, FileBased
+{
+  protected File file = null;
+
+  protected String mimeType = null;
+
+  protected String characterEncoding = null;
+
+  protected byte[] cache = null;
+
+  /**
+   * @param file
+   * @param mimeType
+   * @throws IOException
+   */
+  public FileBasedDataSource(File file, String mimeType) throws IOException
+  {
+    this(file, mimeType, null);
+  }
+
+  /**
+   * @param file
+   * @param mimeType
+   * @param characterEncoding
+   * @throws IOException
+   */
+  public FileBasedDataSource(File file, String mimeType, String characterEncoding) throws IOException
+  {
+    if (file == null)
+    {
+      throw new IllegalArgumentException("The file must not be null.");
+    }
+    if (mimeType == null)
+    {
+      throw new IllegalArgumentException("The mimeType must not be null.");
+    }
+    if (!file.exists())
+    {
+      throw new FileNotFoundException("The file '" + file + "' does not exist.");
+    }
+    if (!file.canRead())
+    {
+      throw new IOException("The file '" + file + "' cannot be read.");
+    }
+
+    this.file = file;
+    this.mimeType = mimeType;
+    this.characterEncoding = characterEncoding;
+    this.cache = DataSourceHelper.convertInputStreamToByteArrayIOEx(new FileInputStream(this.file));
+  }
+
+  /**
+   * @see at.gv.egiz.pdfas.api.io.DataSource#createInputStream()
+   */
+  public InputStream createInputStream()
+  {
+    return new ByteArrayInputStream(this.cache);
+  }
+
+  /**
+   * @see at.gv.egiz.pdfas.api.io.DataSource#getAsByteArray()
+   */
+  public byte[] getAsByteArray()
+  {
+    return this.cache;
+  }
+
+  /**
+   * @see at.gv.egiz.pdfas.api.io.DataSource#getLength()
+   */
+  public int getLength()
+  {
+    return this.cache.length;
+  }
+
+  /**
+   * @see at.gv.egiz.pdfas.api.io.DataSource#getMimeType()
+   */
+  public String getMimeType()
+  {
+    return this.mimeType;
+  }
+
+  /**
+   * @see at.gv.egiz.pdfas.api.io.DataSource#getCharacterEncoding()
+   */
+  public String getCharacterEncoding()
+  {
+    return this.characterEncoding;
+  }
+
+  /**
+   * @see at.gv.egiz.pdfas.api.io.FileBased#getFile()
+   */
+  public File getFile()
+  {
+    return this.file;
+  }
+
+}
-- 
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