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1
17 package org.apache.geronimo.kernel.classloader;
18
19 import java.io.ByteArrayOutputStream  ;
20 import java.io.IOException ;
21 import java.io.InputStream ;
22 import java.io.OutputStream ;
23 import java.io.Reader ;
24 import java.io.Writer ;
25 import java.util.jar.JarFile ;
26
27
30 public final class IoUtil {
31 private IoUtil() {
32 }
33
34 public static byte[] getBytes(InputStream inputStream) throws IOException {
35 try {
36 byte[] buffer = new byte[4096];
37 ByteArrayOutputStream out = new ByteArrayOutputStream ();
38 for (int count = inputStream.read(buffer); count >= 0; count = inputStream.read(buffer)) {
39 out.write(buffer, 0, count);
40 }
41 byte[] bytes = out.toByteArray();
42 return bytes;
43 } finally {
44 close(inputStream);
45 }
46 }
47
48 public static void flush(OutputStream thing) {
49 if (thing != null) {
50 try {
51 thing.flush();
52 } catch(Exception ignored) {
53 }
54 }
55 }
56
57 public static void flush(Writer thing) {
58 if (thing != null) {
59 try {
60 thing.flush();
61 } catch(Exception ignored) {
62 }
63 }
64 }
65
66 public static void close(JarFile thing) {
67 if (thing != null) {
68 try {
69 thing.close();
70 } catch(Exception ignored) {
71 }
72 }
73 }
74
75 public static void close(InputStream thing) {
76 if (thing != null) {
77 try {
78 thing.close();
79 } catch(Exception ignored) {
80 }
81 }
82 }
83
84 public static void close(OutputStream thing) {
85 if (thing != null) {
86 try {
87 thing.close();
88 } catch(Exception ignored) {
89 }
90 }
91 }
92
93 public static void close(Reader thing) {
94 if (thing != null) {
95 try {
96 thing.close();
97 } catch(Exception ignored) {
98 }
99 }
100 }
101
102 public static void close(Writer thing) {
103 if (thing != null) {
104 try {
105 thing.close();
106 } catch(Exception ignored) {
107 }
108 }
109 }
110
111 public static final class EmptyInputStream extends InputStream {
112 public int read() {
113 return -1;
114 }
115
116 public int read(byte b[]) {
117 return -1;
118 }
119
120 public int read(byte b[], int off, int len) {
121 return -1;
122 }
123
124 public long skip(long n) {
125 return 0;
126 }
127
128 public int available() {
129 return 0;
130 }
131
132 public void close() {
133 }
134
135 public synchronized void mark(int readlimit) {
136 }
137
138 public synchronized void reset() {
139 }
140
141 public boolean markSupported() {
142 return false;
143 }
144 }
145 }
146 |
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