1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.sched.util.file;
import com.android.sched.util.ConcurrentIOException;
import com.android.sched.util.RunnableHooks;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipOutputStream;
import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
/**
* Class representing a zip file designed to be written to.
*/
public class OutputZipFile extends OutputStreamFile {
public OutputZipFile(@Nonnull String name,
@CheckForNull RunnableHooks hooks,
@Nonnull Existence existence,
@Nonnull ChangePermission change)
throws FileAlreadyExistsException,
CannotCreateFileException,
CannotSetPermissionException,
WrongPermissionException,
NoSuchFileException,
NotFileException {
super(name, hooks, existence, change, false);
}
@Override
@Nonnull
public ZipOutputStream getOutputStream() {
assert file != null;
clearRemover();
try {
return new CustomZipOutputStream(new FileOutputStream(file));
} catch (FileNotFoundException e) {
throw new ConcurrentIOException(e);
}
}
@Override
@Nonnull
public PrintStream getPrintStream() {
return new PrintStream(getOutputStream());
}
@Nonnull
public String getName() {
assert file != null;
return file.getName();
}
/**
* A {@link ZipOutputStream} that is not directly closed to avoid getting a {@link ZipException}
* when the zip has no entry (with a JRE 6).
*/
private static class CustomZipOutputStream extends ZipOutputStream {
private boolean hasEntries = false;
public CustomZipOutputStream(@Nonnull OutputStream out) {
super(out);
}
@Override
public void putNextEntry(@Nonnull ZipEntry e) throws IOException {
hasEntries = true;
super.putNextEntry(e);
}
@Override
public void close() throws IOException {
if (hasEntries) {
super.close();
} else {
out.close();
}
}
}
}
|
