From 6eed6c47b07371349bd4c30daf2b305ff7f5b1d3 Mon Sep 17 00:00:00 2001
From: Constantin Michael <constantin@codesynthesis.com>
Date: Mon, 5 Sep 2011 11:55:41 +0200
Subject: Add exceptions and error translation
---
odb/oracle/error.cxx | 63 ++++++++++++++++++++++++++++++++++++++++++
odb/oracle/error.hxx | 49 +++++++++++++++++++++++++++++++++
odb/oracle/exceptions.cxx | 66 ++++++++++++++++++++++++++++++++++++++++++++
odb/oracle/exceptions.hxx | 70 +++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 248 insertions(+)
create mode 100644 odb/oracle/error.cxx
create mode 100644 odb/oracle/error.hxx
create mode 100644 odb/oracle/exceptions.cxx
create mode 100644 odb/oracle/exceptions.hxx
diff --git a/odb/oracle/error.cxx b/odb/oracle/error.cxx
new file mode 100644
index 0000000..900e3d9
--- /dev/null
+++ b/odb/oracle/error.cxx
@@ -0,0 +1,63 @@
+// file : odb/oracle/errors.cxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : ODB NCUEL; see accompanying LICENSE file
+
+#include <cassert>
+
+#include <odb/details/buffer.hxx>
+
+#include <odb/oracle/error.hxx>
+#include <odb/oracle/exceptions.hxx>
+
+using namespace std;
+
+namespace odb
+{
+ namespace oracle
+ {
+ void
+ translate_error (void* h, ub4 t, sword s)
+ {
+ assert (s == OCI_ERROR || s == OCI_INVALID_HANDLE);
+
+ if (s == OCI_INVALID_HANDLE)
+ throw invalid_oci_handle ();
+
+ sb4 e;
+ details::buffer b;
+ b.capacity (128);
+
+ bool trunc (true);
+ while (trunc)
+ {
+ trunc = OCIErrorGet (h,
+ 1,
+ 0,
+ &e,
+ reinterpret_cast<text*> (b.data ()),
+ b.capacity (),
+ t) == OCI_ERROR;
+
+ if (trunc)
+ b.capacity (b.capacity () * 2);
+ }
+
+ // @@ Need to find a source of OCI specific codes.
+ //
+ // There are no symbolic definitions for error codes in the OCI
+ // header files.
+ //
+ switch (e)
+ {
+ case 60:
+ throw deadlock ();
+ case 3135:
+ case 3136:
+ throw connection_lost ();
+ default:
+ throw database_exception (e, b.data ());
+ }
+ }
+ }
+}
diff --git a/odb/oracle/error.hxx b/odb/oracle/error.hxx
new file mode 100644
index 0000000..2b83895
--- /dev/null
+++ b/odb/oracle/error.hxx
@@ -0,0 +1,49 @@
+// file : odb/oracle/errors.hxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : ODB NCUEL; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_ERRORS_HXX
+#define ODB_ORACLE_ERRORS_HXX
+
+#include <odb/pre.hxx>
+
+#include <oci.h>
+
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/details/export.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ void
+ translate_error (void* h, ub4 t, sword s);
+
+ // @@ Check connection state attribute once connection has been
+ // implemented.
+ //
+
+ // Translate OCI error given an error handle and throw an appropriate
+ // exception.
+ //
+ inline LIBODB_ORACLE_EXPORT void
+ translate_error (OCIError* h, sword s)
+ {
+ translate_error (h, OCI_HTYPE_ERROR, s);
+ }
+
+ // Translate an OCI error given an environment handle error and throw
+ // an appropriate exception.
+ //
+ inline LIBODB_ORACLE_EXPORT void
+ translate_error (OCIEnv* h)
+ {
+ translate_error (h, OCI_HTYPE_ENV, OCI_ERROR);
+ }
+ }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_ERRORS_HXX
diff --git a/odb/oracle/exceptions.cxx b/odb/oracle/exceptions.cxx
new file mode 100644
index 0000000..903608e
--- /dev/null
+++ b/odb/oracle/exceptions.cxx
@@ -0,0 +1,66 @@
+// file : odb/oracle/exceptions.cxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : ODB NCUEL; see accompanying LICENSE file
+
+#include <odb/oracle/exceptions.hxx>
+
+using namespace std;
+
+namespace odb
+{
+ namespace oracle
+ {
+ //
+ // database_exception
+ //
+
+ database_exception::
+ database_exception (int error, const string& message)
+ : error_ (error), message_ (message)
+ {
+ }
+
+ database_exception::
+ ~database_exception () throw ()
+ {
+ }
+
+ const char* database_exception::
+ what () const throw ()
+ {
+ return message_.c_str ();
+ }
+
+ //
+ // cli_exception
+ //
+
+ cli_exception::
+ cli_exception (const string& what)
+ : what_ (what)
+ {
+ }
+
+ cli_exception::
+ ~cli_exception () throw ()
+ {
+ }
+
+ const char* cli_exception::
+ what () const throw ()
+ {
+ return what_.c_str ();
+ }
+
+ //
+ // invalid_oci_handle
+ //
+
+ const char* invalid_oci_handle::
+ what () const throw ()
+ {
+ return "invalid oci handle";
+ }
+ }
+}
diff --git a/odb/oracle/exceptions.hxx b/odb/oracle/exceptions.hxx
new file mode 100644
index 0000000..ae5a0e7
--- /dev/null
+++ b/odb/oracle/exceptions.hxx
@@ -0,0 +1,70 @@
+// file : odb/oracle/exceptions.hxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license : ODB NCUEL; see accompanying LICENSE file
+
+#ifndef ODB_ORACLE_EXCEPTIONS_HXX
+#define ODB_ORACLE_EXCEPTIONS_HXX
+
+#include <odb/pre.hxx>
+
+#include <string>
+
+#include <odb/exceptions.hxx>
+
+#include <odb/oracle/version.hxx>
+#include <odb/oracle/details/export.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ struct LIBODB_ORACLE_EXPORT database_exception: odb::database_exception
+ {
+ database_exception (int error, const std::string& message);
+
+ ~database_exception () throw ();
+
+ int
+ error () const
+ {
+ return error_;
+ }
+
+ const std::string&
+ message () const
+ {
+ return message_;
+ }
+
+ virtual const char*
+ what () const throw ();
+
+ private:
+ int error_;
+ std::string message_;
+ };
+
+ struct LIBODB_ORACLE_EXPORT cli_exception: odb::exception
+ {
+ cli_exception (const std::string& what);
+ ~cli_exception () throw ();
+
+ virtual const char*
+ what () const throw ();
+
+ private:
+ std::string what_;
+ };
+
+ struct LIBODB_ORACLE_EXPORT invalid_oci_handle: odb::exception
+ {
+ virtual const char*
+ what () const throw ();
+ };
+ }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_ORACLE_EXCEPTIONS_HXX
--
cgit v1.1