| /* |
| * 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.commons.configuration2.tree; |
| |
| import java.io.PrintStream; |
| |
| /** |
| * Utility methods. |
| * |
| * @since 1.7 |
| */ |
| public final class TreeUtils { |
| /** |
| * Print out the data in the configuration. |
| * |
| * @param stream The OutputStream. |
| * @param result The root node of the tree. |
| */ |
| public static void printTree(final PrintStream stream, final ImmutableNode result) { |
| if (stream != null) { |
| printTree(stream, "", result); |
| } |
| } |
| |
| private static void printTree(final PrintStream stream, final String indent, final ImmutableNode result) { |
| final StringBuilder buffer = new StringBuilder(indent).append("<").append(result.getNodeName()); |
| result.getAttributes().forEach((k, v) -> buffer.append(' ').append(k).append("='").append(v).append("'")); |
| buffer.append(">"); |
| stream.print(buffer.toString()); |
| if (result.getValue() != null) { |
| stream.print(result.getValue()); |
| } |
| boolean newline = false; |
| if (!result.getChildren().isEmpty()) { |
| stream.print("\n"); |
| result.forEach(child -> printTree(stream, indent + " ", child)); |
| newline = true; |
| } |
| if (newline) { |
| stream.print(indent); |
| } |
| stream.println("</" + result.getNodeName() + ">"); |
| } |
| |
| /** Prevent creating this class. */ |
| private TreeUtils() { |
| } |
| } |