How to use

merge

method

in

io.spring.initializr.metadata.SingleSelectCapability

/**
 * Merge this instance with the specified argument.
 * @param other the other instance
 */
public void merge(InitializrMetadata other) {
  this.configuration.merge(other.configuration);
  this.dependencies.merge(other.dependencies);
  this.types.merge(other.types);
  this.bootVersions.merge(other.bootVersions);
  this.packagings.merge(other.packagings);
  this.javaVersions.merge(other.javaVersions);
  this.languages.merge(other.languages);
  this.name.merge(other.name);
  this.description.merge(other.description);
  this.groupId.merge(other.groupId);
  this.artifactId.merge(other.artifactId);
  this.version.merge(other.version);
  this.packageName.merge(other.packageName);
}

@Test
void mergeAddEntry() {
  SingleSelectCapability capability = new SingleSelectCapability("test");
  DefaultMetadataElement foo = DefaultMetadataElement.create("foo", false);
  capability.getContent().add(foo);
  SingleSelectCapability anotherCapability = new SingleSelectCapability("test");
  DefaultMetadataElement bar = DefaultMetadataElement.create("bar", false);
  anotherCapability.getContent().add(bar);
  capability.merge(anotherCapability);
  assertThat(capability.getContent()).hasSize(2);
  assertThat(capability.get("foo")).isEqualTo(foo);
  assertThat(capability.get("bar")).isEqualTo(bar);
}

@Override
public void customize(InitializrMetadata metadata) {
  metadata.getDependencies().merge(this.properties.getDependencies());
  metadata.getTypes().merge(this.properties.getTypes());
  metadata.getBootVersions().merge(this.properties.getBootVersions());
  metadata.getPackagings().merge(this.properties.getPackagings());
  metadata.getJavaVersions().merge(this.properties.getJavaVersions());
  metadata.getLanguages().merge(this.properties.getLanguages());
  this.properties.getGroupId().apply(metadata.getGroupId());
  this.properties.getArtifactId().apply(metadata.getArtifactId());
  this.properties.getVersion().apply(metadata.getVersion());
  this.properties.getName().apply(metadata.getName());
  this.properties.getDescription().apply(metadata.getDescription());
  this.properties.getPackageName().apply(metadata.getPackageName());
}