Oracle NG failure caused by Oracle NG OCI support
-------------------------------------------------
Key: GEOT-2897
URL: http://jira.codehaus.org/browse/GEOT-2897
Project: GeoTools
Issue Type: Bug
Components: data oraclespatial
Affects Versions: 2.6.0, 2.6.1, 2.7-M0
Reporter: Ben Caradoc-Davies
Assignee: Andrea Aime
Priority: Critical
Oracle NG OCI support added in GEOT-2873 breaks Oracle NG because it claims to
be able to handle any parameters with dbtype=oracle, even those without "alias"
defined. If OracleNGOCIDataStoreFactory is first in the SPI resource list, all
Oracle connections will be OCI, even those without "alias" set, and connections
will fail if OCI drivers are not installed. Even if OCI drivers are installed,
connections will probably fail because "alias" is used to construct the jdbc
connection string, and will probably result in an NPE.
Symptoms: GeoServer users get the following trying to use a dbtype=oracle or
dbtype=Oracle connection with ojdbc5.jar but no OCI drivers installed:
{code}
java.lang.UnsatisfiedLinkError: no ocijdbc10 in java.library.path no ocijdbc10
in java.library.path
{code}
Workaround is to:
(1) Unjar the gt-jdbc-oracle jar
(2) Remove the org.geotools.data.oracle.OracleNGOCIDataStoreFactory line from
META-INF/services/org.geotools.data.DataStoreFactorySpi to disable SPI for
OracleNGOCIDataStoreFactory
(3) Rejar the gt-jdbc-oracle jar
(4) Restart GeoServer.
This is confirmed to fix the problem in GeoServer 2.1-SNAPSHOT (GeoTools
2.7-SNAPSHOT).
Because OCI support was added to GeoTools 2.6.x, this bug will likely also
affect it and thus GeoServer 2.0.x.
In the old OracleOCIDataStoreFactory, alias was mandatory, and so could be used
to disambiguate the DataStoreFactory.
(I did not see this in Oracle testing for GeoServer 2.0.1 release because I
used JNDI, which shielded me from the bug.)
Probable fix: make "alias" mandatory, as it was in the old
OracleOCIDataStoreFactory.
In OracleNGOCIDataStoreFactory change this:
{code}
static final Param ALIAS = new Param("alias", String.class,
"The alias to the oracle server, as defined in the tnsnames.ora file", false);
{code}
to this:
{code}
static final Param ALIAS = new Param("alias", String.class,
"The alias to the oracle server, as defined in the tnsnames.ora file", true);
{code}
(Last parameter to Param constructor becomes true.)
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