| /* |
| * 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.message; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.ArrayList; |
| |
| public class CodeBuffer { |
| private final ArrayList<String> lines; |
| private int indent; |
| |
| public CodeBuffer() { |
| this.lines = new ArrayList<>(); |
| this.indent = 0; |
| } |
| |
| public void incrementIndent() { |
| indent++; |
| } |
| |
| public void decrementIndent() { |
| indent--; |
| if (indent < 0) { |
| throw new RuntimeException("Indent < 0"); |
| } |
| } |
| |
| public void printf(String format, Object... args) { |
| lines.add(String.format(indentSpaces() + format, args)); |
| } |
| |
| public void write(Writer writer) throws IOException { |
| for (String line : lines) { |
| writer.write(line); |
| } |
| } |
| |
| public void write(CodeBuffer other) { |
| for (String line : lines) { |
| other.lines.add(other.indentSpaces() + line); |
| } |
| } |
| |
| private String indentSpaces() { |
| StringBuilder bld = new StringBuilder(); |
| for (int i = 0; i < indent; i++) { |
| bld.append(" "); |
| } |
| return bld.toString(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof CodeBuffer)) { |
| return false; |
| } |
| CodeBuffer o = (CodeBuffer) other; |
| return lines.equals(o.lines); |
| } |
| |
| @Override |
| public int hashCode() { |
| return lines.hashCode(); |
| } |
| } |