1 files changed, 88 insertions, 0 deletions

diff --git a/src/cuchaz/enigma/convert/ClassMatch.java b/src/cuchaz/enigma/convert/ClassMatch.java
new file mode 100644
index 0000000..8c50a62
--- /dev/null
+++ b/src/cuchaz/enigma/convert/ClassMatch.java
@@ -0,0 +1,88 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.convert;
+
+import java.util.Collection;
+import java.util.Set;
+
+import com.google.common.collect.Sets;
+
+import cuchaz.enigma.Util;
+import cuchaz.enigma.mapping.ClassEntry;
+
+
+public class ClassMatch {
+        
+        public Set<ClassEntry> sourceClasses;
+        public Set<ClassEntry> destClasses;
+        
+        public ClassMatch(Collection<ClassEntry> sourceClasses, Collection<ClassEntry> destClasses) {
+                this.sourceClasses = Sets.newHashSet(sourceClasses);
+                this.destClasses = Sets.newHashSet(destClasses);
+        }
+        
+        public ClassMatch(ClassEntry sourceClass, ClassEntry destClass) {
+                sourceClasses = Sets.newHashSet();
+                if (sourceClass != null) {
+                        sourceClasses.add(sourceClass);
+                }
+                destClasses = Sets.newHashSet();
+                if (destClass != null) {
+                        destClasses.add(destClass);
+                }
+        }
+        
+        public boolean isMatched() {
+                return sourceClasses.size() > 0 && destClasses.size() > 0;
+        }
+
+        public boolean isAmbiguous() {
+                return sourceClasses.size() > 1 || destClasses.size() > 1;
+        }
+        
+        public ClassEntry getUniqueSource() {
+                if (sourceClasses.size() != 1) {
+                        throw new IllegalStateException("Match has ambiguous source!");
+                }
+                return sourceClasses.iterator().next();
+        }
+        
+        public ClassEntry getUniqueDest() {
+                if (destClasses.size() != 1) {
+                        throw new IllegalStateException("Match has ambiguous source!");
+                }
+                return destClasses.iterator().next();
+        }
+
+        public Set<ClassEntry> intersectSourceClasses(Set<ClassEntry> classes) {
+                Set<ClassEntry> intersection = Sets.newHashSet(sourceClasses);
+                intersection.retainAll(classes);
+                return intersection;
+        }
+        
+        @Override
+        public int hashCode() {
+                return Util.combineHashesOrdered(sourceClasses, destClasses);
+        }
+        
+        @Override
+        public boolean equals(Object other) {
+                if (other instanceof ClassMatch) {
+                        return equals((ClassMatch)other);
+                }
+                return false;
+        }
+        
+        public boolean equals(ClassMatch other) {
+                return this.sourceClasses.equals(other.sourceClasses)
+                        && this.destClasses.equals(other.destClasses);
+        }
+}