com.iab.gpp.encoder.segment.TcfCaV1PublisherPurposesSegment Maven / Gradle / Ivy

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package com.iab.gpp.encoder.segment;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.IntSupplier;
import com.iab.gpp.encoder.base64.AbstractBase64UrlEncoder;
import com.iab.gpp.encoder.base64.CompressedBase64UrlEncoder;
import com.iab.gpp.encoder.bitstring.BitStringEncoder;
import com.iab.gpp.encoder.datatype.EncodableFixedBitfield;
import com.iab.gpp.encoder.datatype.EncodableFixedInteger;
import com.iab.gpp.encoder.datatype.EncodableFlexibleBitfield;
import com.iab.gpp.encoder.error.DecodingException;
import com.iab.gpp.encoder.field.EncodableBitStringFields;
import com.iab.gpp.encoder.field.TcfCaV1Field;

public class TcfCaV1PublisherPurposesSegment extends AbstractLazilyEncodableSegment {

  private AbstractBase64UrlEncoder base64UrlEncoder = CompressedBase64UrlEncoder.getInstance();
  private BitStringEncoder bitStringEncoder = BitStringEncoder.getInstance();

  public TcfCaV1PublisherPurposesSegment() {
    super();
  }

  public TcfCaV1PublisherPurposesSegment(String encodedString) {
    super();
    this.decode(encodedString);
  }

  @Override
  public List getFieldNames() {
    return TcfCaV1Field.TCFCAV1_PUBLISHER_PURPOSES_SEGMENT_FIELD_NAMES;
  }

  @Override
  protected EncodableBitStringFields initializeFields() {
    EncodableBitStringFields fields = new EncodableBitStringFields();
    fields.put(TcfCaV1Field.PUB_PURPOSES_SEGMENT_TYPE, new EncodableFixedInteger(3, 3));
    fields.put(TcfCaV1Field.PUB_PURPOSES_EXPRESS_CONSENT,
        new EncodableFixedBitfield(Arrays.asList(false, false, false, false, false, false, false, false, false, false,
            false, false, false, false, false, false, false, false, false, false, false, false, false, false)));
    fields.put(TcfCaV1Field.PUB_PURPOSES_IMPLIED_CONSENT,
        new EncodableFixedBitfield(Arrays.asList(false, false, false, false, false, false, false, false, false, false,
            false, false, false, false, false, false, false, false, false, false, false, false, false, false)));

    EncodableFixedInteger numCustomPurposes = new EncodableFixedInteger(6, 0);
    fields.put(TcfCaV1Field.NUM_CUSTOM_PURPOSES, numCustomPurposes);

    IntSupplier getLengthSupplier = new IntSupplier() {

      @Override
      public int getAsInt() {
        return numCustomPurposes.getValue();
      }

    };

    fields.put(TcfCaV1Field.CUSTOM_PURPOSES_EXPRESS_CONSENT,
        new EncodableFlexibleBitfield(getLengthSupplier, new ArrayList<>()));

    fields.put(TcfCaV1Field.CUSTOM_PURPOSES_IMPLIED_CONSENT,
        new EncodableFlexibleBitfield(getLengthSupplier, new ArrayList<>()));
    return fields;
  }

  @Override
  protected String encodeSegment(EncodableBitStringFields fields) {
    String bitString = bitStringEncoder.encode(fields, getFieldNames());
    String encodedString = base64UrlEncoder.encode(bitString);
    return encodedString;
  }

  @Override
  protected void decodeSegment(String encodedString, EncodableBitStringFields fields) {
    if(encodedString == null || encodedString.isEmpty()) {
      this.fields.reset(fields);
    }
    try {
      String bitString = base64UrlEncoder.decode(encodedString);
      bitStringEncoder.decode(bitString, getFieldNames(), fields);
    } catch (Exception e) {
      throw new DecodingException("Unable to decode TcfCaV1PublisherPurposesSegment '" + encodedString + "'", e);
    }
  }
}