1 files changed, 102 insertions, 0 deletions
diff --git a/src/de/danoeh/antennapod/syndication/util/SyndDateUtils.java b/src/de/danoeh/antennapod/syndication/util/SyndDateUtils.java
new file mode 100644
index 000000000..226a79721
--- /dev/null
+++ b/src/de/danoeh/antennapod/syndication/util/SyndDateUtils.java
@@ -0,0 +1,102 @@
+package de.danoeh.antennapod.syndication.util;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+import android.util.Log;
+
+/** Parses several date formats. */
+public class SyndDateUtils {
+	private static final String TAG = "DateUtils";
+	public static final String RFC822 = "dd MMM yyyy HH:mm:ss Z";
+	/** RFC 822 date format with day of the week. */
+	public static final String RFC822DAY = "EEE, " + RFC822;
+
+	/** RFC 3339 date format for UTC dates. */
+	public static final String RFC3339UTC = "yyyy-MM-dd'T'HH:mm:ss'Z'";
+
+	/** RFC 3339 date format for localtime dates with offset. */
+	public static final String RFC3339LOCAL = "yyyy-MM-dd'T'HH:mm:ssZ";
+	
+	private static ThreadLocal<SimpleDateFormat> RFC822Formatter = new ThreadLocal<SimpleDateFormat>() {
+		@Override
+		protected SimpleDateFormat initialValue() {			
+			return new SimpleDateFormat(RFC822DAY, Locale.US);
+		}
+		
+	};
+	
+	private static ThreadLocal<SimpleDateFormat> RFC3339Formatter = new ThreadLocal<SimpleDateFormat>() {
+		@Override
+		protected SimpleDateFormat initialValue() {			
+			return new SimpleDateFormat(RFC3339UTC, Locale.US);
+		}
+		
+	};
+
+	public static Date parseRFC822Date(final String date) {
+		Date result = null;
+		SimpleDateFormat format = RFC822Formatter.get();
+		try {
+			result = format.parse(date);
+		} catch (ParseException e) {
+			e.printStackTrace();
+			format.applyPattern(RFC822);
+			try {
+				result = format.parse(date);
+			} catch (ParseException e1) {
+				e1.printStackTrace();
+			}
+		}
+
+		return result;
+	}
+
+	public static Date parseRFC3339Date(final String date) {
+		Date result = null;
+		SimpleDateFormat format = RFC3339Formatter.get();
+		if (date.endsWith("Z")) {
+			try {
+				result = format.parse(date);
+			} catch (ParseException e) {
+				e.printStackTrace();
+			}
+		} else {
+			format.applyPattern(RFC3339LOCAL);
+			// remove last colon
+			StringBuffer buf = new StringBuffer(date.length() - 1);
+			int colonIdx = date.lastIndexOf(':');
+			for (int x = 0; x < date.length(); x++) {
+				if (x != colonIdx)
+					buf.append(date.charAt(x));
+			}
+			String bufStr = buf.toString();
+			try {
+				result = format.parse(bufStr);
+			} catch (ParseException e) {
+				e.printStackTrace();
+			}
+
+		}
+
+		return result;
+
+	}
+	/** Takes a string of the form [HH:]MM:SS[.mmm] and converts it to milliseconds. */
+	public static long parseTimeString(final String time) {
+		String[] parts = time.split(":");
+		long result = 0;
+		int idx = 0;
+		if (parts.length == 3) {
+			// string has hours
+			result += Integer.valueOf(parts[idx]) * 3600000;
+			idx++;
+		}
+		result += Integer.valueOf(parts[idx]) * 60000;
+		idx++;
+		result += ( Float.valueOf(parts[idx])) * 1000;
+		return result;
+	}
+}