| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.karaf.shell.commands; |
| |
| import java.util.List; |
| |
| import org.apache.felix.gogo.commands.Command; |
| import org.apache.felix.gogo.commands.Option; |
| import org.apache.felix.gogo.commands.Argument; |
| import org.apache.karaf.shell.console.AbstractAction; |
| |
| @Command(scope = "shell", name = "echo", description="Echoes or prints arguments to STDOUT.") |
| public class EchoAction extends AbstractAction |
| { |
| @Option(name = "-n", aliases = {}, description = "Do not print the trailing newline character", required = false, multiValued = false) |
| private boolean noTrailingNewline = false; |
| |
| @Argument(index = 0, name = "arguments", description="Arguments to display separated by whitespaces", required = false, multiValued = true) |
| private List<String> args; |
| |
| protected Object doExecute() throws Exception { |
| if (args != null) { |
| boolean first = true; |
| for (String arg : args) { |
| if (first) { |
| first = false; |
| } else { |
| System.out.print(" "); |
| } |
| System.out.print(arg); |
| } |
| } |
| |
| if (!noTrailingNewline) { |
| System.out.println(); |
| } |
| |
| return null; |
| } |
| } |