CopyFile.java revision 2958:27da0c3ac83a 
1/*
2 * Copyright (c) 2012, 2015, 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.File;
29import java.io.FileInputStream;
30import java.io.FileOutputStream;
31import java.io.IOException;
32import java.io.InputStream;
33import java.io.OutputStream;
34import java.io.PrintStream;
35import java.net.URI;
36import java.util.HashSet;
37import java.util.Map;
38import java.util.Set;
39
40import com.sun.tools.sjavac.options.Options;
41import com.sun.tools.sjavac.pubapi.PubApi;
42import com.sun.tools.sjavac.server.Sjavac;
43
44/**
45 * The copy file transform simply copies a matching file from -src to -d .
46 * Such files are typically images, xml documents and other data files.
47 *
48 *  <p><b>This is NOT part of any supported API.
49 *  If you write code that depends on this, you do so at your own risk.
50 *  This code and its internal interfaces are subject to change or
51 *  deletion without notice.</b>
52 */
53public class CopyFile implements Transformer {
54
55    public void setExtra(String e) {
56    }
57
58    public void setExtra(Options a) {
59    }
60
61    public boolean transform(Sjavac sjavac,
62                             Map<String,Set<URI>> pkgSrcs,
63                             Set<URI> visibleSrcs,
64                             Map<URI,Set<String>> visibleClasses,
65                             Map<String,Set<String>> oldPackageDependents,
66                             URI destRoot,
67                             Map<String,Set<URI>>    packageArtifacts,
68                             Map<String,Map<String, Set<String>>> packageDependencies,
69                             Map<String,Map<String, Set<String>>> packageCpDependencies,
70                             Map<String, PubApi> packagePubapis,
71                             Map<String, PubApi> dependencyPubapis,
72                             int debugLevel,
73                             boolean incremental,
74                             int numCores,
75                             PrintStream out,
76                             PrintStream err)
77    {
78        boolean rc = true;
79        String dest_filename;
80        File dest;
81
82        for (String pkgName : pkgSrcs.keySet()) {
83            String pkgNameF = Util.toFileSystemPath(pkgName);
84            for (URI u : pkgSrcs.get(pkgName)) {
85                File src = new File(u);
86                File destDir;
87                destDir = new File(destRoot.getPath()+File.separator+pkgNameF);
88                dest_filename = destRoot.getPath()+File.separator+pkgNameF+File.separator+src.getName();
89                dest = new File(dest_filename);
90
91                if (!destDir.isDirectory()) {
92                    if (!destDir.mkdirs()) {
93                       Log.error("Error: The copier could not create the directory "+
94                                           destDir.getPath());
95                        return false;
96                    }
97                }
98
99                Set<URI> as = packageArtifacts.get(pkgName);
100                if (as == null) {
101                    as = new HashSet<>();
102                    packageArtifacts.put(pkgName, as);
103                }
104                as.add(dest.toURI());
105
106                if (dest.exists() && dest.lastModified() > src.lastModified()) {
107                    // A copied file exists, and its timestamp is newer than the source.
108                    continue;
109                }
110
111                Log.info("Copying "+pkgNameF+File.separator+src.getName());
112
113                try (InputStream fin = new FileInputStream(src);
114                     OutputStream fout = new FileOutputStream(dest)) {
115                    byte[] buf = new byte[1024];
116                    int len;
117                    while ((len = fin.read(buf)) > 0){
118                        fout.write(buf, 0, len);
119                    }
120                }
121                catch(IOException e){
122                    Log.error("Could not copy the file "+src.getPath()+" to "+dest.getPath());
123                    rc = false;
124                }
125            }
126        }
127        return rc;
128    }
129}
130