1 files changed, 52 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/api/commons/TextDataSourceAdapter.java b/src/main/java/at/gv/egiz/pdfas/impl/api/commons/TextDataSourceAdapter.java
new file mode 100644
index 0000000..4b34d6f
--- /dev/null
+++ b/src/main/java/at/gv/egiz/pdfas/impl/api/commons/TextDataSourceAdapter.java
@@ -0,0 +1,52 @@
+/**
+ * 
+ */
+package at.gv.egiz.pdfas.impl.api.commons;
+
+import java.io.UnsupportedEncodingException;
+
+import at.gv.egiz.pdfas.api.io.TextBased;
+import at.gv.egiz.pdfas.impl.input.TextDataSourceImpl;
+
+/**
+ * Adapter that converts an API DataSource to a framework TextDataSource.
+ * 
+ * @author wprinz
+ */
+public class TextDataSourceAdapter extends TextDataSourceImpl
+{
+  /**
+   * The API DataSource to be adapted to a framework TextDataSource.
+   */
+  protected at.gv.egiz.pdfas.api.io.DataSource apiDataSource = null;
+
+  /**
+   * Constructor.
+   * 
+   * @param apiDataSource
+   *          The API DataSource to be adapted to a framework TextDataSource.
+   * @throws UnsupportedEncodingException
+   */
+  public TextDataSourceAdapter(at.gv.egiz.pdfas.api.io.DataSource apiDataSource) throws UnsupportedEncodingException
+  {
+    super(null);
+    this.apiDataSource = apiDataSource;
+
+    if (this.apiDataSource instanceof TextBased)
+    {
+      TextBased tb = (TextBased) this.apiDataSource;
+      this.text = tb.getText();
+    }
+    else
+    {
+      byte[] data = this.apiDataSource.getAsByteArray();
+      String characterEncoding = this.apiDataSource.getCharacterEncoding();
+      if (characterEncoding == null)
+      {
+        throw new UnsupportedEncodingException("The characterEncoding must not be null. Specify a correct encoding.");
+      }
+      this.text = new String(data, characterEncoding);
+    }
+    assert this.text != null;
+  }
+}