content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.kafka.image.node.printer;
  
  import java.util.ArrayDeque;
  
  public class NodeStringifier implements MetadataNodePrinter {
      private final MetadataNodeRedactionCriteria redactionCriteria;
      private final StringBuilder stringBuilder;
      private final ArrayDeque<String> prefixes;
  
      public NodeStringifier() {
          this(MetadataNodeRedactionCriteria.Strict.INSTANCE);
      }
  
      public NodeStringifier(MetadataNodeRedactionCriteria redactionCriteria) {
          this.redactionCriteria = redactionCriteria;
          this.stringBuilder = new StringBuilder();
          this.prefixes = new ArrayDeque<>();
          prefixes.push("");
      }
  
      @Override
      public MetadataNodeRedactionCriteria redactionCriteria() {
          return redactionCriteria;
      }
  
      @Override
      public void enterNode(String name) {
          stringBuilder.append(prefixes.pop());
          prefixes.push(", ");
          stringBuilder.append(name).append("(");
          prefixes.push("");
      }
  
      @Override
      public void leaveNode() {
          stringBuilder.append(")");
          prefixes.pop();
      }
  
      @Override
      public void output(String text) {
          stringBuilder.append(prefixes.pop()).append(text);
          prefixes.push(", ");
      }
  
      @Override
      public String toString() {
          return stringBuilder.toString();
      }
  }
  