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Library that provides facilities to allow project information to be manipulated in Java and .Net. Supports a range of data formats: Microsoft Project Exchange (MPX), Microsoft Project (MPP,MPT), Microsoft Project Data Interchange (MSPDI XML), Microsoft Project Database (MPD), Planner (XML), Primavera (PM XML, XER, and database), Asta Powerproject (PP, MDB), Asta Easyplan (PP), Phoenix Project Manager (PPX), FastTrack Schedule (FTS), and the Standard Data Exchange Format (SDEF).

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/*
 * file:       StructuredTextWriter.java
 * author:     Jon Iles
 * copyright:  (c) Packwood Software 2023
 * date:       07/03/2023
 */

/*
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation; either version 2.1 of the License, or (at your
 * option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */

package net.sf.mpxj.primavera;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * Writes a set of StructuredTextRecord instances as structured text.
 */
public class StructuredTextWriter
{
   /**
    * Return a string representing the StructuredTextRecord instance in structured text format.
    *
    * @param record StructuredTextRecord instance
    * @return string representation
    */
   public String write(StructuredTextRecord record)
   {
      m_buffer = new StringBuilder();
      writeRecord(record);
      String result = m_buffer.toString();
      m_buffer = null;
      return result;
   }

   /**
    * Recursively write StructuredTextRecord instances.
    *
    * @param record StructuredTextRecord instance
    */
   private void writeRecord(StructuredTextRecord record)
   {

      m_buffer.append("(");

      m_buffer.append(record.getRecordNumber());
      m_buffer.append("||");
      m_buffer.append(record.getRecordName());

      m_buffer.append("(");
      m_buffer.append(record.getAttributes().entrySet().stream().filter(e -> !IGNORED_KEYS.contains(e.getKey())).map(e -> e.getKey() + "|" + e.getValue()).collect(Collectors.joining("|")));
      m_buffer.append(")");

      m_buffer.append("(");
      for (StructuredTextRecord child : record.getChildren())
      {
         writeRecord(child);
      }
      m_buffer.append(")");

      m_buffer.append(")");
   }

   private StringBuilder m_buffer;

   private static final Set IGNORED_KEYS = new HashSet<>(Arrays.asList(StructuredTextRecord.RECORD_NAME_ATTRIBUTE, StructuredTextRecord.RECORD_NUMBER_ATTRIBUTE));
}