From 2924f0e8570083b60a880cd0215c565960b3e155 Mon Sep 17 00:00:00 2001
From: Michael Edgar <michael@xlate.io>
Date: Wed, 13 Oct 2021 16:37:03 -0400
Subject: [PATCH] Use case-insensitive comparison for enum conversion in schema
 reader

---
 .../io/xlate/edi/internal/schema/SchemaReaderBase.java   | 6 +++---
 src/main/java/io/xlate/edi/schema/EDISimpleType.java     | 9 +++++++++
 src/main/java/io/xlate/edi/schema/EDISyntaxRule.java     | 9 +++++++++
 src/main/java/io/xlate/edi/schema/EDIType.java           | 9 +++++++++
 4 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/src/main/java/io/xlate/edi/internal/schema/SchemaReaderBase.java b/src/main/java/io/xlate/edi/internal/schema/SchemaReaderBase.java
index e0bd4dbc..fa62d55b 100644
--- a/src/main/java/io/xlate/edi/internal/schema/SchemaReaderBase.java
+++ b/src/main/java/io/xlate/edi/internal/schema/SchemaReaderBase.java
@@ -570,7 +570,7 @@ void readSyntax(XMLStreamReader reader, List<EDISyntaxRule> rules) {
         EDISyntaxRule.Type typeInt = null;
 
         try {
-            typeInt = EDISyntaxRule.Type.valueOf(type.toUpperCase());
+            typeInt = EDISyntaxRule.Type.fromString(type);
         } catch (IllegalArgumentException e) {
             throw schemaException("Invalid syntax 'type': [" + type + ']', reader, e);
         }
@@ -607,7 +607,7 @@ List<Integer> readSyntaxPositions(XMLStreamReader reader) {
     ElementType readSimpleType(XMLStreamReader reader) {
         String name = parseAttribute(reader, "name", String::valueOf);
         String code = parseAttribute(reader, "code", String::valueOf, name);
-        Base base = parseAttribute(reader, "base", val -> Base.valueOf(val.toUpperCase()), Base.STRING);
+        Base base = parseAttribute(reader, "base", val -> Base.fromString(val), Base.STRING);
         int scale = (Base.NUMERIC == base) ? parseAttribute(reader, "scale", Integer::parseInt, 0) : -1;
         int number = parseAttribute(reader, "number", Integer::parseInt, -1);
         long minLength = parseAttribute(reader, "minLength", Long::parseLong, 1L);
@@ -793,7 +793,7 @@ void setReferences(StructureType struct, Map<String, EDIType> types) {
 
             final EDIType.Type refType = target.getType();
 
-            if (refType != EDIType.Type.valueOf(impl.getRefTag().toUpperCase())) {
+            if (refType != EDIType.Type.fromString(impl.getRefTag())) {
                 throw schemaException(String.format(REFERR_ILLEGAL, impl.getRefId(), impl.getRefTag(), struct.getId()));
             }
 
diff --git a/src/main/java/io/xlate/edi/schema/EDISimpleType.java b/src/main/java/io/xlate/edi/schema/EDISimpleType.java
index 4594136d..cc1ff7f5 100644
--- a/src/main/java/io/xlate/edi/schema/EDISimpleType.java
+++ b/src/main/java/io/xlate/edi/schema/EDISimpleType.java
@@ -30,6 +30,15 @@ public enum Base {
         TIME,
         BINARY,
         IDENTIFIER;
+
+        public static Base fromString(String value) {
+            for (Base entry : values()) {
+                if (entry.name().equalsIgnoreCase(value)) {
+                    return entry;
+                }
+            }
+            throw new IllegalArgumentException("No enum constant for " + Base.class.getName() + "." + value);
+        }
     }
 
     Base getBase();
diff --git a/src/main/java/io/xlate/edi/schema/EDISyntaxRule.java b/src/main/java/io/xlate/edi/schema/EDISyntaxRule.java
index 9eb5fe14..3791f0aa 100644
--- a/src/main/java/io/xlate/edi/schema/EDISyntaxRule.java
+++ b/src/main/java/io/xlate/edi/schema/EDISyntaxRule.java
@@ -55,6 +55,15 @@ public enum Type {
          * EDIFACT: (D7) If first, then none of the others
          */
         FIRSTONLY;
+
+        public static Type fromString(String value) {
+            for (Type entry : values()) {
+                if (entry.name().equalsIgnoreCase(value)) {
+                    return entry;
+                }
+            }
+            throw new IllegalArgumentException("No enum constant for " + Type.class.getName() + "." + value);
+        }
     }
 
     Type getType();
diff --git a/src/main/java/io/xlate/edi/schema/EDIType.java b/src/main/java/io/xlate/edi/schema/EDIType.java
index 2ce7e0b9..aedf4dbe 100644
--- a/src/main/java/io/xlate/edi/schema/EDIType.java
+++ b/src/main/java/io/xlate/edi/schema/EDIType.java
@@ -25,6 +25,15 @@ public enum Type {
         SEGMENT,
         COMPOSITE,
         ELEMENT;
+
+        public static Type fromString(String value) {
+            for (Type entry : values()) {
+                if (entry.name().equalsIgnoreCase(value)) {
+                    return entry;
+                }
+            }
+            throw new IllegalArgumentException("No enum constant for " + Type.class.getName() + "." + value);
+        }
     }
 
     String getId();