From 09d1edaf9a355159dd426f3e17890c3d242bc8ad Mon Sep 17 00:00:00 2001
From: Falko Menge <falko.menge@camunda.com>
Date: Wed, 10 Jan 2024 17:20:02 +0100
Subject: [PATCH] Add XML schema

---
 bpmn-icon.xsd | 24 ++++++++++++++++++++++++
 example.bpmn  |  7 ++++++-
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 bpmn-icon.xsd

diff --git a/bpmn-icon.xsd b/bpmn-icon.xsd
new file mode 100644
index 0000000..03614f7
--- /dev/null
+++ b/bpmn-icon.xsd
@@ -0,0 +1,24 @@
+<xs:schema id="bpmn-icon" version="0.1" 
+    targetNamespace="http://www.omg.org/spec/BPMN/non-normative/Icon"
+    xmlns:icon="http://www.omg.org/spec/BPMN/non-normative/Icon"
+    xmlns:xs="http://www.w3.org/2001/XMLSchema"
+    elementFormDefault="qualified">
+
+    <xs:element name="iconDefinition" type="icon:tIconDefinition"/>
+
+    <xs:complexType name="tIconDefinition">
+        <xs:attribute name="id" type="xs:ID" use="required"/>
+        <xs:attribute name="href" type="xs:anyURI" use="required"/>
+    </xs:complexType>
+
+    <xs:attributeGroup name="iconRefAttributeGroup">
+        <xs:attribute name="iconRef" type="xs:QName" use="optional">
+            <xs:annotation>
+                <xs:documentation>
+                    This attribute points to the id of the iconDefinition.
+                </xs:documentation>
+            </xs:annotation>
+        </xs:attribute>
+    </xs:attributeGroup>
+
+</xs:schema>
diff --git a/example.bpmn b/example.bpmn
index 80504a0..588e294 100644
--- a/example.bpmn
+++ b/example.bpmn
@@ -3,7 +3,12 @@
   xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
   xmlns:dc="http://www.omg.org/spec/DD/20100524/DC"
   xmlns:icon="http://www.omg.org/spec/BPMN/non-normative/Icon"
-  id="Definitions" targetNamespace="http://example.org">
+  id="Definitions" targetNamespace="http://example.org"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="
+    http://www.omg.org/spec/BPMN/non-normative/Icon
+    ./bpmn-icon.xsd
+  ">
   <process id="ProcessWithIcon">
     <startEvent id="StartEvent" />
   </process>