Migrate UsernamePasswordCredentials (#44)

* Migrate UsernamePasswordCredentials

* Minor polish

---------

Co-authored-by: Tim te Beek <tim@moderne.io>

src/main/java/org/openrewrite/apache/httpclient5/UsernamePasswordCredentials.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2024 the original author or authors.
+ * <p>
+ * 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
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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 org.openrewrite.apache.httpclient5;
+
+import org.openrewrite.ExecutionContext;
+import org.openrewrite.Preconditions;
+import org.openrewrite.Recipe;
+import org.openrewrite.TreeVisitor;
+import org.openrewrite.java.JavaIsoVisitor;
+import org.openrewrite.java.JavaTemplate;
+import org.openrewrite.java.MethodMatcher;
+import org.openrewrite.java.search.UsesMethod;
+import org.openrewrite.java.tree.Expression;
+import org.openrewrite.java.tree.J;
+import org.openrewrite.java.tree.JavaType;
+import org.openrewrite.java.tree.TypeUtils;
+
+public class UsernamePasswordCredentials extends Recipe {
+    private static final String FQN = "org.apache.http.auth.UsernamePasswordCredentials";
+    private static final String METHOD_PATTERN = FQN + " <constructor>(String, String)";
+
+    @Override
+    public String getDisplayName() {
+        return "Migrate `UsernamePasswordCredentials` to httpclient5";
+    }
+
+    @Override
+    public String getDescription() {
+        return "Change the password argument going into `UsernamePasswordCredentials` to be a `char[]`.";
+    }
+
+    @Override
+    public TreeVisitor<?, ExecutionContext> getVisitor() {
+        MethodMatcher methodMatcher = new MethodMatcher(METHOD_PATTERN);
+        return Preconditions.check(new UsesMethod<>(methodMatcher), new JavaIsoVisitor<ExecutionContext>() {
+            @Override
+            public J.NewClass visitNewClass(J.NewClass newClass, ExecutionContext ctx) {
+                J.NewClass nc = super.visitNewClass(newClass, ctx);
+                if (methodMatcher.matches(nc)) {
+                    Expression passwordArgument = nc.getArguments().get(1);
+                    nc = JavaTemplate.apply("#{any(String)}.toCharArray()",
+                            getCursor(), passwordArgument.getCoordinates().replace(), passwordArgument);
+                }
+                return nc;
+            }
+        });
+    }
+}

src/main/resources/META-INF/rewrite/apache-httpclient-5.yml

@@ -41,6 +41,7 @@ recipeList:
       newGroupId: org.apache.httpcomponents.core5
       newArtifactId: httpcore5
       newVersion: 5.3.x
+  - org.openrewrite.apache.httpclient5.UsernamePasswordCredentials
   - org.openrewrite.apache.httpclient5.UpgradeApacheHttpClient_5_ClassMapping
   - org.openrewrite.apache.httpclient5.UpgradeApacheHttpClient_5_DeprecatedMethods
   - org.openrewrite.apache.httpclient5.UpgradeApacheHttpClient_5_TimeUnit