ZipEntryContentWriter Type — spring-boot Architecture

Source Code

build-plugin/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/bundling/BootZipCopyAction.java lines 512–552

	@FunctionalInterface
	private interface ZipEntryContentWriter {

		/**
		 * Write the entry data.
		 * @param out the output stream used to write the data
		 * @throws IOException on IO error
		 */
		void writeTo(ZipArchiveOutputStream out) throws IOException;

		/**
		 * Create a new {@link ZipEntryContentWriter} that will copy content from the
		 * given {@link InputStream}.
		 * @param in the source input stream
		 * @return a new {@link ZipEntryContentWriter} instance
		 */
		static ZipEntryContentWriter fromInputStream(InputStream in) {
			return (out) -> {
				StreamUtils.copy(in, out);
				in.close();
			};
		}

		/**
		 * Create a new {@link ZipEntryContentWriter} that will copy content from the
		 * given lines.
		 * @param encoding the required character encoding
		 * @param lines the lines to write
		 * @return a new {@link ZipEntryContentWriter} instance
		 */
		static ZipEntryContentWriter fromLines(String encoding, Collection<String> lines) {
			return (out) -> {
				OutputStreamWriter writer = new OutputStreamWriter(out, encoding);
				for (String line : lines) {
					writer.append(line).append("\n");
				}
				writer.flush();
			};
		}

	}