org.apache.geode.management.internal.cli.help.format.NewHelp Maven / Gradle / Ivy

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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing

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/*
 * 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.geode.management.internal.cli.help.format;

import org.apache.geode.management.internal.cli.GfshParser;
import org.apache.geode.management.internal.cli.shell.Gfsh;

/**
 * 
 * @since GemFire 7.0
 */
public class NewHelp {
  DataNode root;

  public NewHelp(DataNode root) {
    this.root = root;
  }

  @Override
  public String toString() {
    StringBuilder builder = new StringBuilder();
    append(builder, root, 0);
    return builder.toString();
  }

  private void append(StringBuilder builder, DataNode dataNode, int level) {
    if (dataNode != null && builder != null) {
      String data = dataNode.getData();
      if (data != null && !data.equals("")) {
        builder.append(Gfsh.wrapText(data, level - 1));
        builder.append(GfshParser.LINE_SEPARATOR);
      }
      if (dataNode.getChildren() != null && dataNode.getChildren().size() > 0) {
        for (DataNode child : dataNode.getChildren()) {
          append(builder, child, level + 1);
        }
      }
    }
  }
}