LoadImageUpdateListener Class — spring-boot Architecture

Source Code

buildpack/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/DockerApi.java lines 592–619

	private static final class LoadImageUpdateListener implements UpdateListener<LoadImageUpdateEvent> {

		private final ImageArchive archive;

		private @Nullable String stream;

		private LoadImageUpdateListener(ImageArchive archive) {
			this.archive = archive;
		}

		@Override
		public void onUpdate(LoadImageUpdateEvent event) {
			Assert.state(event.getErrorDetail() == null,
					() -> "Error response received when loading image" + image() + ": " + event.getErrorDetail());
			this.stream = event.getStream();
		}

		private String image() {
			ImageReference tag = this.archive.getTag();
			return (tag != null) ? " \"" + tag + "\"" : "";
		}

		private void assertValidResponseReceived() {
			Assert.state(StringUtils.hasText(this.stream),
					() -> "Invalid response received when loading image" + image());
		}

	}