1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 import java.io.PrintStream; 26 import java.io.PrintWriter; 27 import java.io.StringWriter; 28 import java.util.Arrays; 29 import java.util.List; 30 import java.util.spi.ToolProvider; 31 import java.util.stream.Collectors; 32 33 /** 34 * JdepsRunner class to invoke jdeps with the given command line argument 35 */ 36 public class JdepsRunner { 37 private static final ToolProvider JDEPS_TOOL = ToolProvider.findFirst("jdeps") 38 .orElseThrow(() -> new RuntimeException("jdeps tool not found")); 39 40 public static JdepsRunner run(String... args) { 41 JdepsRunner jdeps = new JdepsRunner(args); 42 int rc = jdeps.run(true); 43 if (rc != 0) 44 throw new Error("jdeps failed: rc=" + rc); 45 return jdeps; 46 } 47 48 final StringWriter stdout = new StringWriter(); 49 final StringWriter stderr = new StringWriter(); 50 final String[] args; 51 public JdepsRunner(String... args) { 52 System.out.println("jdeps " + Arrays.stream(args) 53 .collect(Collectors.joining(" "))); 54 this.args = args; 55 } 56 57 public JdepsRunner(List<String> args) { 58 this(args.toArray(new String[0])); 59 } 60 61 public int run() { 62 return run(false); 63 } 64 65 public int run(boolean showOutput) { 66 try (PrintWriter pwout = new PrintWriter(stdout); 67 PrintWriter pwerr = new PrintWriter(stderr)) { 68 int rc = JDEPS_TOOL.run(pwout, pwerr, args); 69 if (showOutput) { 70 printStdout(System.out); 71 printStderr(System.out); 72 } 73 return rc; 74 } 75 } 76 77 public boolean outputContains(String s) { 78 return stdout.toString().contains(s); 79 } 80 81 public void printStdout(PrintStream stream) { 82 stream.println(stdout.toString()); 83 } 84 85 public void printStderr(PrintStream stream) { 86 stream.println(stderr.toString()); 87 } 88 89 public String[] output() { 90 String lineSep = System.getProperty("line.separator"); 91 return stdout.toString().split(lineSep); 92 } 93 }