001/* 002 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * bstefanescu 016 */ 017package org.nuxeo.shell.fs.cmds; 018 019import java.io.File; 020import java.io.FileInputStream; 021 022import org.nuxeo.shell.Argument; 023import org.nuxeo.shell.Command; 024import org.nuxeo.shell.Context; 025import org.nuxeo.shell.Shell; 026import org.nuxeo.shell.ShellConsole; 027import org.nuxeo.shell.ShellException; 028import org.nuxeo.shell.fs.FileSystem; 029 030/** 031 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 032 */ 033@Command(name = "cat", help = "Print the content of a file") 034public class Cat implements Runnable { 035 036 @Context 037 protected Shell shell; 038 039 @Argument(name = "file", index = 0, required = false, help = "The file to print") 040 protected File file; 041 042 public void run() { 043 ShellConsole console = shell.getConsole(); 044 if (file == null) { 045 file = shell.getContextObject(FileSystem.class).pwd(); 046 } 047 cat(console, file); 048 } 049 050 public static void cat(ShellConsole console, File file) { 051 if (!file.isFile()) { 052 return; 053 } 054 String content = null; 055 try { 056 FileInputStream in = new FileInputStream(file); 057 try { 058 content = FileSystem.readContent(in); 059 } finally { 060 in.close(); 061 } 062 } catch (Exception e) { 063 throw new ShellException(e); 064 } 065 console.println(content); 066 } 067}