CopyFile.java revision 2593:035b01d356ee 
1/*
2 * Copyright (c) 2012, 2014, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.tools.sjavac;
27
28import java.io.*;
29import java.net.URI;
30import java.util.Set;
31import java.util.HashSet;
32import java.util.Map;
33
34import com.sun.tools.sjavac.options.Options;
35import com.sun.tools.sjavac.server.Sjavac;
36
37/**
38 * The copy file transform simply copies a matching file from -src to -d .
39 * Such files are typically images, xml documents and other data files.
40 *
41 *  <p><b>This is NOT part of any supported API.
42 *  If you write code that depends on this, you do so at your own risk.
43 *  This code and its internal interfaces are subject to change or
44 *  deletion without notice.</b>
45 */
46public class CopyFile implements Transformer {
47
48    public void setExtra(String e) {
49    }
50
51    public void setExtra(Options a) {
52    }
53
54    public boolean transform(Sjavac sjavac,
55                             Map<String,Set<URI>> pkgSrcs,
56                             Set<URI> visibleSrcs,
57                             Map<URI,Set<String>> visibleClasses,
58                             Map<String,Set<String>> oldPackageDependents,
59                             URI destRoot,
60                             Map<String,Set<URI>>    packageArtifacts,
61                             Map<String,Set<String>> packageDependencies,
62                             Map<String,String>      packagePubapis,
63                             int debugLevel,
64                             boolean incremental,
65                             int numCores,
66                             PrintStream out,
67                             PrintStream err)
68    {
69        boolean rc = true;
70        String dest_filename;
71        File dest;
72
73        for (String pkgName : pkgSrcs.keySet()) {
74            String pkgNameF = Util.toFileSystemPath(pkgName);
75            for (URI u : pkgSrcs.get(pkgName)) {
76                File src = new File(u);
77                File destDir;
78                destDir = new File(destRoot.getPath()+File.separator+pkgNameF);
79                dest_filename = destRoot.getPath()+File.separator+pkgNameF+File.separator+src.getName();
80                dest = new File(dest_filename);
81
82                if (!destDir.isDirectory()) {
83                    if (!destDir.mkdirs()) {
84                       Log.error("Error: The copier could not create the directory "+
85                                           destDir.getPath());
86                        return false;
87                    }
88                }
89
90                Set<URI> as = packageArtifacts.get(pkgName);
91                if (as == null) {
92                    as = new HashSet<>();
93                    packageArtifacts.put(pkgName, as);
94                }
95                as.add(dest.toURI());
96
97                if (dest.exists() && dest.lastModified() > src.lastModified()) {
98                    // A copied file exists, and its timestamp is newer than the source.
99                    continue;
100                }
101
102                Log.info("Copying "+pkgNameF+File.separator+src.getName());
103
104                try (InputStream fin = new FileInputStream(src);
105                     OutputStream fout = new FileOutputStream(dest)) {
106                    byte[] buf = new byte[1024];
107                    int len;
108                    while ((len = fin.read(buf)) > 0){
109                        fout.write(buf, 0, len);
110                    }
111                }
112                catch(IOException e){
113                    Log.error("Could not copy the file "+src.getPath()+" to "+dest.getPath());
114                    rc = false;
115                }
116            }
117        }
118        return rc;
119    }
120}
121