/* Copyright 2017 Remko Popma 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 picocli.examples.execute; import picocli.CommandLine; import picocli.CommandLine.ExitCode; import picocli.CommandLine.IExecutionStrategy; import picocli.CommandLine.Model.CommandSpec; import picocli.CommandLine.Model.OptionSpec; import picocli.CommandLine.Model.PositionalParamSpec; import picocli.CommandLine.ParseResult; import java.io.File; import java.util.Collections; import java.util.List; public class ExecutionStrategyWithExecutionResult { public static void main(final String[] args) { CommandSpec spec = CommandSpec.create(); spec.mixinStandardHelpOptions(true); spec.addOption(OptionSpec.builder("-c", "--count") .paramLabel("COUNT") .type(int.class) .description("number of times to execute").build()); spec.addPositional(PositionalParamSpec.builder() .paramLabel("FILES") .type(List.class) .auxiliaryTypes(File.class) .description("The files to process").build()); CommandLine commandLine = new CommandLine(spec); class Handler implements IExecutionStrategy { @Override public int execute(ParseResult pr) { int count = pr.matchedOptionValue('c', 1); List<File> files = pr.matchedPositionalValue(0, Collections.<File>emptyList()); for (File f : files) { for (int i = 0; i < count; i++) { System.out.println(i + " " + f.getName()); } } pr.commandSpec().commandLine().setExecutionResult(files.size()); return ExitCode.OK; } } commandLine.setExecutionStrategy(new Handler()); commandLine.execute(args); int processed = commandLine.getExecutionResult(); } }