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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.StructuredField;
import com.mgz.afp.exceptions.AFPParserException;
import com.mgz.afp.exceptions.IAFPDecodeableWriteable;
import com.mgz.afp.parser.AFPParserConfiguration;
import com.mgz.util.UtilBinaryDecoding;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

public class MCC_MediumCopyCount extends StructuredField {
  List repeatingGroups;

  @Override
  public void decodeAFP(byte[] sfData, int offset, int length, AFPParserConfiguration config) throws AFPParserException {
    int actualLength = getActualLength(sfData, offset, length);
    int pos = 0;
    repeatingGroups = new ArrayList();
    while (pos < actualLength) {
      MCC_RepeatingGroup rg = new MCC_RepeatingGroup();
      rg.decodeAFP(sfData, offset + pos, actualLength - pos, config);
      repeatingGroups.add(rg);
      pos += 6;
    }
  }

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

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

  public List getRepeatingGroups() {
    return repeatingGroups;
  }

  public void setRepeatingGroups(List repeatingGroups) {
    this.repeatingGroups = repeatingGroups;
  }

  public void addRepeatingGroup(MCC_RepeatingGroup rg) {
    if (rg == null) {
      return;
    }
    if (repeatingGroups == null) {
      repeatingGroups = new ArrayList();
    }
    repeatingGroups.add(rg);
  }

  public void removeRepeatingGroup(MCC_RepeatingGroup rg) {
    if (repeatingGroups == null) {
      return;
    }
    repeatingGroups.remove(rg);
  }

  public static class MCC_RepeatingGroup implements IAFPDecodeableWriteable {
    short startingCopyNumber;
    short endingCopyNumber;
    byte reserved4 = 0x00;
    byte mediumModificationControlIdentifier;

    @Override
    public void decodeAFP(byte[] sfData, int offset, int length, AFPParserConfiguration config) throws AFPParserException {
      checkDataLength(sfData, offset, length, 6);
      startingCopyNumber = UtilBinaryDecoding.parseShort(sfData, offset, 2);
      endingCopyNumber = UtilBinaryDecoding.parseShort(sfData, offset + 2, 2);
      reserved4 = sfData[4];
      mediumModificationControlIdentifier = sfData[5];
    }

    @Override
    public void writeAFP(OutputStream os, AFPParserConfiguration config) throws IOException {
      os.write(UtilBinaryDecoding.shortToByteArray(startingCopyNumber, 2));
      os.write(UtilBinaryDecoding.shortToByteArray(endingCopyNumber, 2));
      os.write(reserved4);
      os.write(mediumModificationControlIdentifier);
    }

    public short getStartingCopyNumber() {
      return startingCopyNumber;
    }

    public void setStartingCopyNumber(short startingCopyNumber) {
      this.startingCopyNumber = startingCopyNumber;
    }

    public short getEndingCopyNumber() {
      return endingCopyNumber;
    }

    public void setEndingCopyNumber(short endingCopyNumber) {
      this.endingCopyNumber = endingCopyNumber;
    }

    public byte getReserved4() {
      return reserved4;
    }

    public void setReserved4(byte reserved4) {
      this.reserved4 = reserved4;
    }

    public byte getMediumModificationControlIdentifier() {
      return mediumModificationControlIdentifier;
    }

    public void setMediumModificationControlIdentifier(
        byte mediumModificationControlIdentifier) {
      this.mediumModificationControlIdentifier = mediumModificationControlIdentifier;
    }
  }
}