[RFC PATCH v1 17/23] dts: merge DTS framework/flow/exceptions.py to DPDK

["Juraj Linkeš" <juraj.linkes@pantheon.tech>]

---
 dts/framework/flow/exceptions.py | 44 ++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 dts/framework/flow/exceptions.py

diff --git a/dts/framework/flow/exceptions.py b/dts/framework/flow/exceptions.py
new file mode 100644
index 0000000000..cf261307a8
--- /dev/null
+++ b/dts/framework/flow/exceptions.py
@@ -0,0 +1,44 @@
+# BSD LICENSE
+#
+# Copyright(c) 2020 Intel Corporation. All rights reserved.
+# Copyright © 2018[, 2019] The University of New Hampshire. All rights reserved.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.
+#   * Neither the name of Intel Corporation nor the names of its
+#     contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+class CompositionException(Exception):
+    def __init__(self):
+        self.message = "There was an unexpected error in composition"
+
+
+class InvalidFlowItemException(CompositionException):
+    def __init__(self, first_item, second_item, flow=None):
+        if flow is not None:
+            self.message = f'"{first_item}" was not able to accept "{second_item}" as the next item in flow {flow}.'
+        else:
+            self.message = f'"{first_item}" was not able to accept "{second_item}".'
-- 
2.20.1