MigrationScriptReference.java

package jetbrains.mps.lang.migration.runtime.base;

/*Generated by MPS */

import org.apache.log4j.Logger;
import org.apache.log4j.LogManager;
import org.jetbrains.mps.openapi.language.SLanguage;
import jetbrains.mps.smodel.adapter.ids.MetaIdHelper;
import jetbrains.mps.smodel.adapter.structure.MetaAdapterFactory;
import jetbrains.mps.smodel.adapter.ids.SLanguageId;
import jetbrains.mps.smodel.language.LanguageRegistry;
import jetbrains.mps.smodel.MPSModuleRepository;
import org.apache.log4j.Level;

public class MigrationScriptReference implements BaseScriptReference<MigrationScript> {
  private static final Logger LOG = LogManager.getLogger(MigrationScriptReference.class);
  private final SLanguage language;
  private final int fromVersion;
  public MigrationScriptReference(SLanguage language, int fromVersion) {
    this.language = language;
    this.fromVersion = fromVersion;
  }
  public SLanguage getLanguage() {
    return language;
  }
  public int getFromVersion() {
    return fromVersion;
  }
  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || this.getClass() != o.getClass()) {
      return false;
    }
    MigrationScriptReference that = (MigrationScriptReference) o;
    if (!(language.equals(that.language))) {
      return false;
    }
    if (fromVersion != that.fromVersion) {
      return false;
    }
    return true;
  }
  @Override
  public int hashCode() {
    return language.hashCode() + 31 * fromVersion;
  }
  public String serialize() {
    return MetaIdHelper.getLanguage(language).serialize() + "(" + language.getQualifiedName() + ")" + "/" + fromVersion;
  }
  public static MigrationScriptReference deserialize(String s) {
    int version = Integer.parseInt(s.substring(s.indexOf('/') + 1));
    int ix = s.indexOf('(');
    SLanguage language = MetaAdapterFactory.getLanguage(SLanguageId.deserialize(s.substring(0, ix)), s.substring(ix + 1, s.indexOf(')', ix)));
    return new MigrationScriptReference(language, version);
  }

  @Override
  public MigrationScript resolve(boolean silent) {
    int current = this.getFromVersion();

    MigrationAspectDescriptor md = LanguageRegistry.getInstance(MPSModuleRepository.getInstance()).getLanguage(language).getAspect(MigrationAspectDescriptor.class);
    if (md == null && !(silent)) {
      if (LOG.isEnabledFor(Level.WARN)) {
        LOG.warn("Could not load migration descriptor for language " + language + ".");
      }
    }
    MigrationScript script = check_dhbyxl_a0e0k(md, current);
    if (script == null && !(silent)) {
      if (LOG.isEnabledFor(Level.WARN)) {
        LOG.warn("Could not load migration script for language " + language + ", version " + current + ".");
      }
      return null;
    }
    return script;
  }
  private static MigrationScript check_dhbyxl_a0e0k(MigrationAspectDescriptor checkedDotOperand, Integer current) {
    if (null != checkedDotOperand) {
      return checkedDotOperand.getScript(current);
    }
    return null;
  }
}