# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1625497426 -7200
# Node ID e17fdc43ef6ce18d99913e97ffdf88f077c3ef1c
# Parent  b51c08bd5c381f87337004222794b93f137e64f6
optimized version of DicomPath::IsMatch()

diff -r b51c08bd5c38 -r e17fdc43ef6c OrthancFramework/Sources/DicomFormat/DicomPath.cpp
--- a/OrthancFramework/Sources/DicomFormat/DicomPath.cpp	Mon Jul 05 16:12:10 2021 +0200
+++ b/OrthancFramework/Sources/DicomFormat/DicomPath.cpp	Mon Jul 05 17:03:46 2021 +0200
@@ -372,4 +372,42 @@
       }
     }
   }
+
+
+  bool DicomPath::IsMatch(const DicomPath& pattern,
+                          const std::vector<Orthanc::DicomTag>& prefixTags,
+                          const std::vector<size_t>& prefixIndexes,
+                          const DicomTag& finalTag)
+  {
+    if (prefixTags.size() != prefixIndexes.size())
+    {
+      throw OrthancException(ErrorCode_ParameterOutOfRange);
+    }
+    
+    if (prefixTags.size() < pattern.GetPrefixLength())
+    {
+      return false;
+    }
+    else
+    {
+      for (size_t i = 0; i < pattern.GetPrefixLength(); i++)
+      {
+        if (prefixTags[i] != pattern.GetPrefixTag(i) ||
+            (!pattern.IsPrefixUniversal(i) &&
+             prefixIndexes[i] != pattern.GetPrefixIndex(i)))
+        {
+          return false;
+        }
+      }
+
+      if (prefixTags.size() == pattern.GetPrefixLength())
+      {
+        return (finalTag == pattern.GetFinalTag());
+      }
+      else
+      {
+        return (prefixTags[pattern.GetPrefixLength()] == pattern.GetFinalTag());
+      }
+    }
+  }    
 }
diff -r b51c08bd5c38 -r e17fdc43ef6c OrthancFramework/Sources/DicomFormat/DicomPath.h
--- a/OrthancFramework/Sources/DicomFormat/DicomPath.h	Mon Jul 05 16:12:10 2021 +0200
+++ b/OrthancFramework/Sources/DicomFormat/DicomPath.h	Mon Jul 05 17:03:46 2021 +0200
@@ -130,5 +130,10 @@
 
     static bool IsMatch(const DicomPath& pattern,
                         const DicomPath& path);
+
+    static bool IsMatch(const DicomPath& pattern,
+                        const std::vector<Orthanc::DicomTag>& prefixTags,
+                        const std::vector<size_t>& prefixIndexes,
+                        const DicomTag& finalTag);
   };
 }
diff -r b51c08bd5c38 -r e17fdc43ef6c OrthancFramework/UnitTestsSources/FromDcmtkTests.cpp
--- a/OrthancFramework/UnitTestsSources/FromDcmtkTests.cpp	Mon Jul 05 16:12:10 2021 +0200
+++ b/OrthancFramework/UnitTestsSources/FromDcmtkTests.cpp	Mon Jul 05 17:03:46 2021 +0200
@@ -2261,6 +2261,31 @@
 }
 
 
+static bool MyIsMatch(const DicomPath& a,
+                      const DicomPath& b)
+{
+  bool expected = DicomPath::IsMatch(a, b);
+
+  std::vector<DicomTag> prefixTags;
+  std::vector<size_t> prefixIndexes;
+
+  for (size_t i = 0; i < b.GetPrefixLength(); i++)
+  {
+    prefixTags.push_back(b.GetPrefixTag(i));
+    prefixIndexes.push_back(b.GetPrefixIndex(i));
+  }
+
+  if (expected == DicomPath::IsMatch(a, prefixTags, prefixIndexes, b.GetFinalTag()))
+  {
+    return expected;
+  }
+  else
+  {
+    throw OrthancException(ErrorCode_InternalError);
+  }
+}
+
+
 TEST(DicomModification, DicomPath)
 {
   // Those are samples inspired by those from "man dcmodify"
@@ -2366,30 +2391,30 @@
   ASSERT_THROW(DicomPath::Parse("(0010,0010)0].PatientID"), OrthancException);
   ASSERT_THROW(DicomPath::Parse("(0010,0010)[-1].PatientID"), OrthancException);
 
-  ASSERT_TRUE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)"),
-                                 DicomPath::Parse("(0010,0010)")));
-  ASSERT_FALSE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)"),
-                                  DicomPath::Parse("(0010,0020)")));
-  ASSERT_TRUE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)"),
-                                 DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
-  ASSERT_FALSE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)"),
-                                  DicomPath::Parse("(0010,0010)")));
-  ASSERT_TRUE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)"),
-                                 DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
-  ASSERT_TRUE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[*].(0010,0020)"),
-                                 DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
-  ASSERT_FALSE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[2].(0010,0020)"),
-                                  DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
-  ASSERT_THROW(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)"),
-                                  DicomPath::Parse("(0010,0010)[*].(0010,0020)")), OrthancException);
-  ASSERT_TRUE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[*].(0010,0020)[*].(0010,0030)"),
-                                 DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
-  ASSERT_TRUE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)"),
-                                 DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
-  ASSERT_FALSE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)[3].(0010,0030)"),
-                                  DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
-  ASSERT_FALSE(DicomPath::IsMatch(DicomPath::Parse("(0010,0010)[2].(0010,0020)[2].(0010,0030)"),
-                                  DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
+  ASSERT_TRUE(MyIsMatch(DicomPath::Parse("(0010,0010)"),
+                        DicomPath::Parse("(0010,0010)")));
+  ASSERT_FALSE(MyIsMatch(DicomPath::Parse("(0010,0010)"),
+                         DicomPath::Parse("(0010,0020)")));
+  ASSERT_TRUE(MyIsMatch(DicomPath::Parse("(0010,0010)"),
+                        DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
+  ASSERT_FALSE(MyIsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)"),
+                         DicomPath::Parse("(0010,0010)")));
+  ASSERT_TRUE(MyIsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)"),
+                        DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
+  ASSERT_TRUE(MyIsMatch(DicomPath::Parse("(0010,0010)[*].(0010,0020)"),
+                        DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
+  ASSERT_FALSE(MyIsMatch(DicomPath::Parse("(0010,0010)[2].(0010,0020)"),
+                         DicomPath::Parse("(0010,0010)[1].(0010,0020)")));
+  ASSERT_THROW(MyIsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)"),
+                         DicomPath::Parse("(0010,0010)[*].(0010,0020)")), OrthancException);
+  ASSERT_TRUE(MyIsMatch(DicomPath::Parse("(0010,0010)[*].(0010,0020)[*].(0010,0030)"),
+                        DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
+  ASSERT_TRUE(MyIsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)"),
+                        DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
+  ASSERT_FALSE(MyIsMatch(DicomPath::Parse("(0010,0010)[1].(0010,0020)[3].(0010,0030)"),
+                         DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
+  ASSERT_FALSE(MyIsMatch(DicomPath::Parse("(0010,0010)[2].(0010,0020)[2].(0010,0030)"),
+                         DicomPath::Parse("(0010,0010)[1].(0010,0020)[2].(0010,0030)[3].(0010,0040)")));
 }