X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;ds=sidebyside;f=runtime%2Forg.argeo.slc.support.gis%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fslc%2Fgpsbabel%2FGpsBabelPositionProvider.java;h=36d5d21361ffd7d3cfa8dac1919f5ddb2b5c1788;hb=002f3c6efa017209f60565d0beb6b0feb65d2c20;hp=83aca1d845dc770348765a22c4761309604367fb;hpb=01b96d9c2db7b5ba4c83cfe99f3f4a4312611cc2;p=gpl%2Fargeo-slc.git

diff --git a/runtime/org.argeo.slc.support.gis/src/main/java/org/argeo/slc/gpsbabel/GpsBabelPositionProvider.java b/runtime/org.argeo.slc.support.gis/src/main/java/org/argeo/slc/gpsbabel/GpsBabelPositionProvider.java
index 83aca1d84..36d5d2136 100644
--- a/runtime/org.argeo.slc.support.gis/src/main/java/org/argeo/slc/gpsbabel/GpsBabelPositionProvider.java
+++ b/runtime/org.argeo.slc.support.gis/src/main/java/org/argeo/slc/gpsbabel/GpsBabelPositionProvider.java
@@ -2,7 +2,9 @@ package org.argeo.slc.gpsbabel;
 
 import java.util.StringTokenizer;
 
-import org.argeo.slc.gis.model.Position;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.gis.model.FieldPosition;
 import org.argeo.slc.jts.PositionProvider;
 
 import com.vividsolutions.jts.geom.Coordinate;
@@ -10,6 +12,8 @@ import com.vividsolutions.jts.geom.GeometryFactory;
 import com.vividsolutions.jts.geom.Point;
 
 public class GpsBabelPositionProvider implements PositionProvider {
+	private Log log = LogFactory.getLog(GpsBabelPositionProvider.class);
+
 	private GpsBabelCall gpsBabelCall;
 
 	private GeometryFactory geometryFactory = new GeometryFactory();
@@ -17,22 +21,39 @@ public class GpsBabelPositionProvider implements PositionProvider {
 	private String inputFormat = "garmin,get_posn";
 	private String inputFile = "usb:";
 
+	private Boolean silentlyFailing = false;
+
 	public void init() {
 		gpsBabelCall = new GpsBabelCall(inputFormat, inputFile, "csv", "-");
 	}
 
-	public Position currentPosition() {
+	public FieldPosition currentPosition() {
 		// lazy init
 		if (gpsBabelCall == null)
 			init();
 
-		String output = gpsBabelCall.function();
+		String output;
+		try {
+			output = gpsBabelCall.function();
+			silentlyFailing = false;
+		} catch (Exception e) {
+			if (!silentlyFailing) {
+				log.warn(e.getMessage()
+						+ ": "
+						+ (e.getCause() != null ? e.getCause().getMessage()
+								: ""));
+				if (log.isTraceEnabled())
+					e.printStackTrace();
+				silentlyFailing = true;
+			}
+			return null;
+		}
 		StringTokenizer st = new StringTokenizer(output, ",");
 		Double latitude = Double.parseDouble(st.nextToken());
 		Double longitude = Double.parseDouble(st.nextToken());
 		Point position = geometryFactory.createPoint(new Coordinate(longitude,
 				latitude));
-		return new Position(position);
+		return new FieldPosition(position);
 	}
 
 	public void setInputFormat(String inputFormat) {