I encounter a problem, I don't know how to resolve it.
The shapefile SignedBikeRoute_4326_clipped.dbf begins with these fields :
Field name : OBJECTID, Type : Number, Field length : 10, Decimal positions :
0
Field name : FNODE_, Type : Number, Field length : 10, Decimal positions : 0
Field name : TNODE_, Type : Number, Field length : 10, Decimal positions : 0
Field name : LPOLY_, Type : Number, Field length : 10, Decimal positions : 0
OBJECTID DECIMAL(10,0) is mapped as a Double with ResultSet:getObject()
and I receive this exception during the tests, now that I really create a
feature...
java.lang.ClassCastException: La propriété OBJECTID n'accepte pas les
valeurs de type Double.
(the property OBJECTID doesn't accept the value of Double type)
at
org.apache.sis.feature.AbstractFeature.illegalValueClass(AbstractFeature.java:528)
at
org.apache.sis.feature.AbstractFeature.verifyAttributeValue(AbstractFeature.java:447)
at
org.apache.sis.feature.AbstractFeature.verifyPropertyValue(AbstractFeature.java:417)
at
org.apache.sis.feature.DenseFeature.setPropertyValue(DenseFeature.java:206)
at
org.apache.sis.storage.shapefile.InputFeatureStream.readFeature(InputFeatureStream.java:161)
at
org.apache.sis.storage.shapefile.ShapeFileTest.readAll(ShapeFileTest.java:92)
at
org.apache.sis.storage.shapefile.ShapeFileTest.testPolyineCount(ShapeFileTest.java:57)
I have to do something.
Either :
1) Find a way to declare the feature description to fit the database. How
does the AbstractFeature class works ?
2) Put every value in String format, as it was done before, but it seems to
me to be a bad idea, especially for dates.
Marc.
-----Message d'origine-----
From: Adam Estrada
Sent: Sunday, January 04, 2015 11:02 PM
To: [email protected]
Subject: Re: Shapefile checkings
:) Thanks for fixing this bug quickly, Marc!
Adam
On Jan 4, 2015, at 4:53 PM, Marc Le Bihan <[email protected]> wrote:
Humm. It appears I left a nice bug that I have to correct immediately.
Shapefile are no more returning features (!!!).
Sorry.
From: Marc Le Bihan
Sent: Sunday, January 04, 2015 10:04 PM
To: [email protected]
Subject: Shapefile checkings
Hello,
I committed a change that links more the Shapefile files to the DBase
file.
The Shapefile class could disappear. The way to read Features from a
shapefile is now :
InputFeatureStream is = new InputFeatureStream(shapeFile,
databaseFile); // Shapefile (.shp) and Database (.dbf) files.
Feature feature = is.readFeature(); // null is returned when the end of
the shapefile / database are reached.
Inside the map of the Feature, the objects values have now the SQL type
associated to their type : Date, Integer, Double, Float or String.
I expect it works. Regarding to the test units available it doesn’t
cause troubles, but... these tests are not checking deeply the problems
that can exist.
1) What control can I do on values red on shapefile (not the database
part, but the shapefile part) to ensure that I am not reading stupid
things ?
2) Can we guess Shapefile entry #4 = Record #4 in the Database ? BTW, I
will add a new constructor to InputFeatureStream that will have an SQL
request of the form “SELECT * FROM <database> WHERE <single condition>“ to
limit Feature to a database condition.
3) Deleted records are still not taken into account in Database. If
they came, the record should be skept (but isn’t yet). I hope that when
this happens there is no Shapefile entry associated to this deleted
record.
4) Shall I put all the exceptions in a public package instead of their
internal package ? I think it would be better.
Regards,
Marc Le Bihan
