1 files changed, 141 insertions, 0 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java
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+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/io/FileBasedDataSource.java
@@ -0,0 +1,141 @@
+/**
+ * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
+ * 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.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;
+  }
+
+}