001/* 002 * Copyright 2012-2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.cli.command.shell; 018 019import org.springframework.boot.cli.command.AbstractCommand; 020import org.springframework.boot.cli.command.Command; 021import org.springframework.boot.cli.command.status.ExitStatus; 022 023/** 024 * {@link Command} to change the {@link Shell} prompt. 025 * 026 * @author Dave Syer 027 */ 028public class PromptCommand extends AbstractCommand { 029 030 private final ShellPrompts prompts; 031 032 public PromptCommand(ShellPrompts shellPrompts) { 033 super("prompt", "Change the prompt used with the current 'shell' command. " 034 + "Execute with no arguments to return to the previous value."); 035 this.prompts = shellPrompts; 036 } 037 038 @Override 039 public ExitStatus run(String... strings) throws Exception { 040 if (strings.length > 0) { 041 for (String string : strings) { 042 this.prompts.pushPrompt(string + " "); 043 } 044 } 045 else { 046 this.prompts.popPrompt(); 047 } 048 return ExitStatus.OK; 049 } 050 051}