X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=runtime%2Forg.argeo.slc.support.gis%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fslc%2Fgpsbabel%2FGpsBabelPositionProvider.java;h=8d2ca18fddbb6dd5ef1c2f67809a4c93893c4598;hb=f0c7a3c02b2ab88af730c5abd735c8cda5276d03;hp=b77a71c5236c09a7356e982c526705f3e9ceea8f;hpb=d3a5063833293cf77e680aa856dc28533414f5c4;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 b77a71c52..8d2ca18fd 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
@@ -1,7 +1,26 @@
+/*
+ * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.argeo.slc.gpsbabel;
 
 import java.util.StringTokenizer;
 
+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;
@@ -9,6 +28,8 @@ 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();
@@ -16,22 +37,39 @@ 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 Point 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 position;
+		return new FieldPosition(position);
 	}
 
 	public void setInputFormat(String inputFormat) {