de.gwdg.metadataqa.marc.definition.general.FieldLinkAndSequenceNumberParser Maven / Gradle / Ivy

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package de.gwdg.metadataqa.marc.definition.general;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class FieldLinkAndSequenceNumberParser {

  public static final Pattern TWO_NUMBERS_PATTERN = Pattern.compile("^(\\d+)\\.(\\d+)\\\\([acprux])$");
  public static final Pattern ONE_NUMBER_PATTERN = Pattern.compile("^(\\d+)\\\\([acprux])$");

  private Integer linkingNumber;
  private Integer sequenceNumber;
  private String fieldLinkTypeChar;
  private LinkType fieldLinkType;
  private String input;

  public FieldLinkAndSequenceNumberParser(String input) {
    this.input = input;
    parse();
  }

  private void parse() {
    Matcher matcher = TWO_NUMBERS_PATTERN.matcher(input);
    if (matcher.matches()) {
      linkingNumber = Integer.parseInt(matcher.group(1));
      sequenceNumber = Integer.parseInt(matcher.group(2));
      fieldLinkTypeChar = matcher.group(3);
    } else {
      matcher = ONE_NUMBER_PATTERN.matcher(input);
      if (matcher.matches()) {
        linkingNumber = Integer.parseInt(matcher.group(1));
        fieldLinkTypeChar = matcher.group(2);
      }
    }
    if (fieldLinkTypeChar != null)
      fieldLinkType = LinkType.byCode(fieldLinkTypeChar);
  }

  public Integer getLinkingNumber() {
    return linkingNumber;
  }

  public Integer getSequenceNumber() {
    return sequenceNumber;
  }

  public String getFieldLinkTypeChar() {
    return fieldLinkTypeChar;
  }

  public LinkType getFieldLinkType() {
    return fieldLinkType;
  }
}