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Alpheus AFP Parser is a library and parser for the IBM Advanced Function Presentation (AFP) document/print stream format. Alpheus covers all AFP specifications: MO:DCA, BCOCA, CMOCA, FOCA, GOCA, IOCA, and PTOCA. It is a complete implementation. Every Structured Field, Repeating Group, and Triplet is fully implemented as Java class. Alpheus AFP Parser was written from scratch and has no external dependencies. Copyright 2015,2016 Rudolf Fiala Alpheus AFP Parser is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

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/*
Copyright 2015 Rudolf Fiala

This file is part of Alpheus AFP Parser.

Alpheus AFP Parser is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Alpheus AFP Parser 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with Alpheus AFP Parser.  If not, see 
*/
package com.mgz.afp.modca;

import com.mgz.afp.base.IRepeatingGroup;
import com.mgz.afp.base.StructuredFieldBaseRepeatingGroups;
import com.mgz.afp.exceptions.AFPParserException;
import com.mgz.afp.parser.AFPParserConfiguration;
import com.mgz.util.Constants;
import com.mgz.util.UtilCharacterEncoding;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * MO:DCA, page 296.
 
 The Map Suppression structured field maps one-byte text suppression
 * local identifiers to text suppression names. Suppressible text is identified in presentation text
 * objects with a local identifier and is bracketed with control sequences that specify the
 * beginning and the end of the suppression. A text suppression is activated by specifying its local
 * identifier in a Medium Modification Control (MMC) structured field in a medium map.
 */
public class MSU_MapSuppression extends StructuredFieldBaseRepeatingGroups {
  @Override
  public void decodeAFP(byte[] sfData, int offset, int length, AFPParserConfiguration config) throws AFPParserException {
    int actualLength = getActualLength(sfData, offset, length);
    if (actualLength > 0) {
      int pos = 0;
      while (pos < actualLength) {
        MSU_RepeatingGroup rg = new MSU_RepeatingGroup();
        rg.decodeAFP(sfData, offset + pos, actualLength - pos, config);
        addRepeatingGroup(rg);
        pos += 10;
      }
    } else {
      repeatingGroups = null;
    }
  }


  @Override
  public void writeAFP(OutputStream os, AFPParserConfiguration config) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    if (repeatingGroups != null) {
      for (IRepeatingGroup rg : repeatingGroups) {
        rg.writeAFP(baos, config);
      }
    }

    writeFullStructuredField(os, baos.toByteArray());
  }

  public static class MSU_RepeatingGroup implements IRepeatingGroup {
    String nameOfTextSuppresstion;
    byte reserved8 = 0x00;
    byte localID;

    @Override
    public void decodeAFP(byte[] sfData, int offset, int length, AFPParserConfiguration config) throws AFPParserException {
      nameOfTextSuppresstion = new String(sfData, offset, 8, config.getAfpCharSet());
      reserved8 = sfData[offset + 8];
      localID = sfData[offset + 9];
    }


    @Override
    public void writeAFP(OutputStream os, AFPParserConfiguration config) throws IOException {
      os.write(UtilCharacterEncoding.stringToByteArray(nameOfTextSuppresstion, config.getAfpCharSet(), 8, Constants.EBCDIC_ID_FILLER));
      os.write(reserved8);
      os.write(localID);
    }

    public String getNameOfTextSuppresstion() {
      return nameOfTextSuppresstion;
    }

    public void setNameOfTextSuppresstion(String nameOfTextSuppresstion) {
      this.nameOfTextSuppresstion = nameOfTextSuppresstion;
    }

    public byte getReserved8() {
      return reserved8;
    }

    public void setReserved8(byte reserved8) {
      this.reserved8 = reserved8;
    }

    public byte getLocalID() {
      return localID;
    }

    public void setLocalID(byte localID) {
      this.localID = localID;
    }
  }
}