| // Copyright 2015 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.buildjar.genclass; |
| |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Iterator; |
| |
| /** A command line parser for {@link GenClassOptions}. */ |
| public class GenClassOptionsParser { |
| public static GenClassOptions parse(Iterable<String> args) { |
| Iterator<String> it = args.iterator(); |
| GenClassOptions.Builder builder = GenClassOptions.builder(); |
| |
| while (it.hasNext()) { |
| String arg = it.next(); |
| switch (arg) { |
| case "--manifest_proto": |
| builder.setManifest(readPath(it)); |
| break; |
| case "--class_jar": |
| builder.setClassJar(readPath(it)); |
| break; |
| case "--output_jar": |
| builder.setOutputJar(readPath(it)); |
| break; |
| default: |
| throw new IllegalArgumentException( |
| String.format("Unexpected argument: '%s' in %s", arg, args)); |
| } |
| } |
| return builder.build(); |
| } |
| |
| private static Path readPath(Iterator<String> it) { |
| if (!it.hasNext()) { |
| throw new IllegalArgumentException(String.format("Expected more arguments")); |
| } |
| return Paths.get(it.next()); |
| } |
| } |