1 files changed, 56 insertions, 0 deletions
diff --git a/src/main/com/tonicsystems/jarjar/AbstractDepHandler.java b/src/main/com/tonicsystems/jarjar/AbstractDepHandler.java
new file mode 100644
index 0000000..5a54737
--- /dev/null
+++ b/src/main/com/tonicsystems/jarjar/AbstractDepHandler.java
@@ -0,0 +1,56 @@
+/**
+ * Copyright 2007 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.tonicsystems.jarjar;
+
+import com.tonicsystems.jarjar.util.*;
+import java.io.*;
+import java.util.*;
+
+abstract public class AbstractDepHandler implements DepHandler
+{
+    protected final int level;
+    private final Set<List<Object>> seenIt = new HashSet<List<Object>>();
+    
+    protected AbstractDepHandler(int level) {
+        this.level = level;
+    }
+    
+    public void handle(PathClass from, PathClass to) throws IOException {
+        List<Object> pair;
+        if (level == LEVEL_JAR) {
+            pair = createPair(from.getClassPath(), to.getClassPath());
+        } else {
+            pair = createPair(from.getClassName(), to.getClassName());
+        }
+        if (!seenIt.contains(pair)) {
+            seenIt.add(pair);
+            handle(pair.get(0).toString(), pair.get(1).toString());
+        }
+    }
+
+    abstract protected void handle(String from, String to) throws IOException;
+
+    public void handleStart() throws IOException { }
+    public void handleEnd() throws IOException { }
+
+    private static List<Object> createPair(Object o1, Object o2) {
+        List<Object> list = new ArrayList<Object>(2);
+        list.add(o1);
+        list.add(o2);
+        return list;
+    }
+}