org.apache.kafka.image.node.printer.NodeStringifier Maven / Gradle / Ivy
/*
* 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 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();
}
}