# This patch file was generated by NetBeans IDE
# Following Index: paths are relative to: /home/jjdelcerro/datos/devel/org.gvsig.desktop/org.gvsig.desktop.compat.cdc/org.gvsig.fmap.dal/org.gvsig.fmap.dal.file/org.gvsig.fmap.dal.file.csv
# This patch can be applied using context Tools: Patch action on respective folder.
# It uses platform neutral UTF-8 encoding and \n newlines.
# Above lines and this line are ignored by the patching process.
Index: src/main/java/org/gvsig/fmap/dal/store/csv/CSVStoreParameters.java
--- src/main/java/org/gvsig/fmap/dal/store/csv/CSVStoreParameters.java Base (BASE)
+++ src/main/java/org/gvsig/fmap/dal/store/csv/CSVStoreParameters.java Locally Modified (Based On LOCAL)
@@ -65,6 +65,7 @@
     private static final String FIRST_LINE_HEADER = "firstLineHeader";
     private static final String HEADER = "header";
     private static final String SURROUNDINGSPACESNEEDQUOTES = "surroundingSpacesNeedQuotes";
+    private static final String ACCEPTDUPLICATES = "acceptDuplicates";
 
     //private static final String IGNOREEMPTYLINES = "ignoreEmptyLines";
     private static final String CRS = "CRS";
@@ -368,6 +369,11 @@
 //        return fieldSizes;
 //    }
 
+    static boolean acceptDuplicates(DynObject dynobj) {
+        Boolean b = (Boolean) dynobj.getDynValue(ACCEPTDUPLICATES);
+        return BooleanUtils.isTrue(b);
+    }
+    
     static String getRawFieldTypes(DynObject dynobj) {
         String s = (String) dynobj.getDynValue(FIELDTYPES);
         if ( StringUtils.isBlank(s) ) {
Index: src/main/java/org/gvsig/fmap/dal/store/csv/CSVStoreProvider.java
--- src/main/java/org/gvsig/fmap/dal/store/csv/CSVStoreProvider.java Base (BASE)
+++ src/main/java/org/gvsig/fmap/dal/store/csv/CSVStoreProvider.java Locally Modified (Based On LOCAL)
@@ -37,6 +37,7 @@
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.function.Function;
 import javax.json.JsonArray;
 import javax.json.JsonObject;
 import javax.json.JsonValue;
@@ -113,6 +114,7 @@
 import org.slf4j.LoggerFactory;
 import org.supercsv.prefs.CsvPreference;
 import org.gvsig.tools.dataTypes.CoercionContext;
+import org.gvsig.tools.namestranslator.NamesTranslator;
 
 @SuppressWarnings("UseSpecificCatch")
 public class CSVStoreProvider extends AbstractMemoryStoreProvider implements
@@ -669,7 +671,17 @@
         // Una vez ya sabemos los tipos de datos rellenamos el feature-type
         //
         for (FieldTypeParser fieldType : fieldTypes) {
-            EditableFeatureAttributeDescriptor fad = fType.add(fieldType.name, fieldType.type);
+            String name = fieldType.name;
+            if( fType.get(fieldType.name)!=null ) {
+                // Campo duplicado.
+                if( !CSVStoreParameters.acceptDuplicates(this.getParameters()) ) {
+                    throw new RuntimeException("Column name '"+name+"' duplicated.");
+                }
+                NamesTranslator translator = NamesTranslator.createBaseTranslator();
+                translator.updateSourceNames(fType, (Object t) -> ((FeatureAttributeDescriptor)t).getName());
+                name = translator.getSuggestion(name);
+            }
+            EditableFeatureAttributeDescriptor fad = fType.add(name, fieldType.type);
             if( fieldType.detectedValue!=null ) {
                 fad.setDisplaySize(Math.max(fieldType.detectedValue.getDisplaySize(), fieldType.size));
                 fad.setSize(Math.max(fieldType.detectedValue.getDisplaySize(), fieldType.size));
Index: src/main/resources/org/gvsig/fmap/dal/store/csv/CSVParameters.xml
--- src/main/resources/org/gvsig/fmap/dal/store/csv/CSVParameters.xml Base (BASE)
+++ src/main/resources/org/gvsig/fmap/dal/store/csv/CSVParameters.xml Locally Modified (Based On LOCAL)
@@ -63,6 +63,9 @@
                 <field name="commentStartMarker" type="string" mandatory="false" defaultValue="" group="Advanced">
                     <description>Sets the comment start marker of the format to the specified character.</description>
                 </field>
+                <field name="acceptDuplicates" label="Accept duplicates" type="boolean" mandatory="false" defaultValue="false" group="Advanced">
+                    <description></description>
+                </field>
                 <field name="automaticTypesDetection" type="boolean" mandatory="false" defaultValue="true" group="Advanced">
                     <description>This flag activate the autodetection of types in the CSV. Can be slow.</description>
                 </field>