refactoring DockerfileService

static/js/services/dockerfile/dockerfile.service.ts

@@ -0,0 +1,43 @@
+/**
+ * Service which provides helper methods for extracting information out from a Dockerfile
+ * or an archive containing a Dockerfile.
+ */
+export abstract class DockerfileService {
+
+  /**
+   * Retrieve Dockerfile from given archive file.
+   * @param file File containing Dockerfile.
+   * @param success Success callback with retrieved Dockerfile as parameter.
+   * @param failure Failure callback with failure message as parameter.
+   */
+  public abstract getDockerfile(file: any,
+                                success: (dockerfile: DockerfileInfo) => void,
+                                failure: (error: ErrorEvent | string) => void): void;
+
+  public abstract extractDockerfile(file: any): Promise<DockerfileInfo | string>;
+}
+
+
+/**
+ * Model representing information about a specific Dockerfile.
+ */
+export abstract class DockerfileInfo {
+
+  /**
+   * Extract the registry base image from the Dockerfile contents.
+   * @return registryBaseImage The registry base image.
+   */
+  public abstract getRegistryBaseImage(): string | null;
+
+  /**
+   * Extract the base image from the Dockerfile contents.
+   * @return baseImage The base image.
+   */
+  public abstract getBaseImage(): string | null;
+
+  /**
+   * Extract the base image and tag from the Dockerfile contents.
+   * @return baseImageAndTag The base image and tag.
+   */
+  public abstract getBaseImageAndTag(): string | null;
+}