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1
21
22 package org.apache.derby.impl.services.reflect;
23
24 import java.util.zip.ZipFile  ;
25 import java.util.zip.ZipEntry ;
26 import java.util.zip.ZipInputStream ;
27
28 import java.io.IOException ;
29 import java.io.File ;
30 import java.io.InputStream ;
31 import java.io.ByteArrayOutputStream ;
32 import org.apache.derby.iapi.util.IdUtil;
33 import org.apache.derby.iapi.services.io.InputStreamUtil;
34
35 class JarFile {
36 final String [] name;
37 protected ZipFile zip;
38 boolean isStream;
39
40 JarFile() {
41 name = null;
42 }
43
44 JarFile(String [] name) {
45 this.name = name;
46 }
47
48 JarFile newJarFile(String [] name) {
49 return new JarFile(name);
50 }
51
52 final String getJarName() {
53 return IdUtil.mkQualifiedName(name);
54 }
55
56
57 final boolean isZip() {
58 return zip != null;
59 }
60
61 final ZipFile getZip() {
62 return zip;
63 }
64
65 void initialize(File jarFile) throws IOException {
66 zip = new ZipFile (jarFile);
67 }
68
69 final void setInvalid() {
70 if (zip != null) {
71 try {
72 zip.close();
73 } catch (IOException ioe) {
74 }
75 zip = null;
76
77 }
78 isStream = false;
79 }
80
81 ZipEntry getEntry(String entryName) {
82 return zip.getEntry(entryName);
83 }
84 ZipInputStream getZipOnStream(InputStream in) throws IOException {
85 return new ZipInputStream (in);
86 }
87 ZipEntry getNextEntry(ZipInputStream in) throws IOException {
88 return in.getNextEntry();
89 }
90
91 byte[] readData(ZipEntry ze, InputStream in, String className) throws IOException {
92
93 int size = (int) ze.getSize();
94
95 if (size != -1) {
96 byte[] data = new byte[size];
97
98 InputStreamUtil.readFully(in, data, 0, size);
99
100 return data;
101 }
102
103 byte[] data = new byte[1024];
105 ByteArrayOutputStream os = new ByteArrayOutputStream (1024);
106 int r;
107 while ((r = in.read(data)) != -1) {
108 os.write(data, 0, r);
109 }
110
111 data = os.toByteArray();
112 return data;
113 }
114
115 Object [] getSigners(String className, ZipEntry ze) throws IOException {
116 return null;
117 }
118 }
119 |
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