1 files changed, 87 insertions, 0 deletions
diff --git a/app/src/main/java/de/danoeh/antennapod/opml/OpmlReader.java b/app/src/main/java/de/danoeh/antennapod/opml/OpmlReader.java
new file mode 100644
index 000000000..19a980dee
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/opml/OpmlReader.java
@@ -0,0 +1,87 @@
+package de.danoeh.antennapod.opml;
+
+import android.util.Log;
+import de.danoeh.antennapod.BuildConfig;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.util.ArrayList;
+
+/** Reads OPML documents. */
+public class OpmlReader {
+	private static final String TAG = "OpmlReader";
+	
+	// ATTRIBUTES
+	private boolean isInOpml = false;
+	private ArrayList<OpmlElement> elementList;
+
+	/**
+	 * Reads an Opml document and returns a list of all OPML elements it can
+	 * find
+	 * 
+	 * @throws IOException
+	 * @throws XmlPullParserException
+	 */
+	public ArrayList<OpmlElement> readDocument(Reader reader)
+			throws XmlPullParserException, IOException {
+		elementList = new ArrayList<OpmlElement>();
+		XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
+		factory.setNamespaceAware(true);
+		XmlPullParser xpp = factory.newPullParser();
+		xpp.setInput(reader);
+		int eventType = xpp.getEventType();
+
+		while (eventType != XmlPullParser.END_DOCUMENT) {
+			switch (eventType) {
+			case XmlPullParser.START_DOCUMENT:
+				if (BuildConfig.DEBUG)
+					Log.d(TAG, "Reached beginning of document");
+				break;
+			case XmlPullParser.START_TAG:
+				if (xpp.getName().equals(OpmlSymbols.OPML)) {
+					isInOpml = true;
+					if (BuildConfig.DEBUG)
+						Log.d(TAG, "Reached beginning of OPML tree.");
+				} else if (isInOpml && xpp.getName().equals(OpmlSymbols.OUTLINE)) {
+					if (BuildConfig.DEBUG)
+						Log.d(TAG, "Found new Opml element");
+					OpmlElement element = new OpmlElement();
+					
+					final String title = xpp.getAttributeValue(null, OpmlSymbols.TITLE);
+					if (title != null) {
+						Log.i(TAG, "Using title: " + title);
+						element.setText(title);
+					} else {
+						Log.i(TAG, "Title not found, using text");
+						element.setText(xpp.getAttributeValue(null, OpmlSymbols.TEXT));			
+					}
+					element.setXmlUrl(xpp.getAttributeValue(null, OpmlSymbols.XMLURL));
+					element.setHtmlUrl(xpp.getAttributeValue(null, OpmlSymbols.HTMLURL));
+					element.setType(xpp.getAttributeValue(null, OpmlSymbols.TYPE));
+					if (element.getXmlUrl() != null) {
+						if (element.getText() == null) {
+							Log.i(TAG, "Opml element has no text attribute.");
+							element.setText(element.getXmlUrl());
+						}
+						elementList.add(element);
+					} else {
+						if (BuildConfig.DEBUG)
+							Log.d(TAG,
+									"Skipping element because of missing xml url");
+					}
+				}
+				break;
+			}
+			eventType = xpp.next();
+		}
+
+		if (BuildConfig.DEBUG)
+			Log.d(TAG, "Parsing finished.");
+
+		return elementList;
+	}
+
+}