wip

Signed-off-by: Attila Mészáros <a_meszaros@apple.com>

Author: csviri

migration/src/main/java/io/javaoperatorsdk/operator/migration/RemoveMethodDeclaration.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright Java Operator SDK Authors
+ *
+ * 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 io.javaoperatorsdk.operator.migration;
+
+import org.openrewrite.ExecutionContext;
+import org.openrewrite.Option;
+import org.openrewrite.Recipe;
+import org.openrewrite.TreeVisitor;
+import org.openrewrite.java.JavaIsoVisitor;
+import org.openrewrite.java.MethodMatcher;
+import org.openrewrite.java.tree.J;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class RemoveMethodDeclaration extends Recipe {
+
+  @Option(
+      displayName = "Method pattern",
+      description = "A method pattern used to find matching method declarations.",
+      example = "com.example.Foo bar(..)")
+  private final String methodPattern;
+
+  @JsonCreator
+  public RemoveMethodDeclaration(@JsonProperty("methodPattern") String methodPattern) {
+    this.methodPattern = methodPattern;
+  }
+
+  @Override
+  public String getDisplayName() {
+    return "Remove method declaration";
+  }
+
+  @Override
+  public String getDescription() {
+    return "Removes method declarations matching the given method pattern.";
+  }
+
+  @Override
+  public TreeVisitor<?, ExecutionContext> getVisitor() {
+    var matcher = new MethodMatcher(methodPattern, true);
+    return new JavaIsoVisitor<>() {
+      @Override
+      public J.MethodDeclaration visitMethodDeclaration(
+          J.MethodDeclaration method, ExecutionContext ctx) {
+        var classDecl = getCursor().firstEnclosing(J.ClassDeclaration.class);
+        if (classDecl != null && matcher.matches(method, classDecl)) {
+          //noinspection DataFlowIssue
+          return null;
+        }
+        return super.visitMethodDeclaration(method, ctx);
+      }
+    };
+  }
+}