1 /* 2 * Copyright (c) 2018, 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 package com.sun.tools.jextract; 25 26 import java.io.*; 27 import java.nio.file.Files; 28 import java.nio.file.Path; 29 import java.util.Arrays; 30 import java.util.Map; 31 import java.util.Properties; 32 import java.util.logging.Level; 33 34 public final class Writer { 35 36 private final Log log; 37 private final Map<String, byte[]> results; 38 39 Writer(Context ctx, Map<String, byte[]> results) { 40 this.log = ctx.log; 41 this.results = results; 42 } 43 44 static final String JEXTRACT_MANIFEST = "META-INF/jextract.properties"; 45 46 public boolean isEmpty() { 47 return results.isEmpty(); 48 } 49 50 @SuppressWarnings("deprecation") 51 byte[] getJextractProperties(String[] args) { 52 Properties props = new Properties(); 53 props.setProperty("os.name", System.getProperty("os.name")); 54 props.setProperty("os.version", System.getProperty("os.version")); 55 props.setProperty("os.arch", System.getProperty("os.arch")); 56 props.setProperty("jextract.args", Arrays.toString(args)); 57 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 58 props.save(baos, "jextract meta data"); 59 return baos.toByteArray(); 60 } 61 62 void writeClassFiles(Path destDir, String[] args) throws IOException { 63 try { 64 results.forEach((cls, bytes) -> { 65 try { 66 String path = cls.replace('.', File.separatorChar) + ".class"; 67 log.print(Level.FINE, () -> "Writing " + path); 68 Path fullPath = destDir.resolve(path).normalize(); 69 Files.createDirectories(fullPath.getParent()); 70 try (OutputStream fos = Files.newOutputStream(fullPath)) { 71 fos.write(bytes); 72 fos.flush(); 73 } 74 } catch (IOException ioe) { 75 throw new UncheckedIOException(ioe); 76 } 77 }); 78 79 Path propsPath = destDir.resolve(JEXTRACT_MANIFEST.replace('/', File.separatorChar)).normalize(); 80 Files.createDirectories(propsPath.getParent()); 81 try (OutputStream fos = Files.newOutputStream(propsPath)) { 82 fos.write(getJextractProperties(args)); 83 fos.flush(); 84 } 85 } catch (UncheckedIOException uioe) { 86 throw uioe.getCause(); 87 } 88 } 89 90 //These methods are used for testing (see Runner.java) 91 92 public Map<String, byte[]> results() { 93 return results; 94 } 95 }