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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: InputStreamToXInputStreamAdapter.java,v $
* $Revision: 1.5 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package com.sun.star.lib.uno.adapter;
import java.io.IOException;
import com.sun.star.io.XInputStream;
import java.io.InputStream;
/** The <code>InputStreamToInputXStreamAdapter</code> wraps the
Java <code>InputStream</code> object into a
UNO <code>XInputStream</code> object.
This allows users to access an <code>InputStream</code>
as if it were an <code>XInputStream</code>.
*/
public class InputStreamToXInputStreamAdapter implements XInputStream {
/**
* Internal store to the InputStream
*/
private InputStream iIn;
/**
* Constructor.
*
* @param in The <code>XInputStream</code> to be
* accessed as an <code>InputStream</code>.
*/
public InputStreamToXInputStreamAdapter (InputStream in)
{
iIn = in;
}
public int available() throws
com.sun.star.io.IOException
{
int bytesAvail;
try {
bytesAvail = iIn.available();
} catch (IOException e) {
throw new com.sun.star.io.IOException(e.toString());
}
return(bytesAvail);
}
public void closeInput() throws
com.sun.star.io.IOException
{
try {
iIn.close();
} catch (IOException e) {
throw new com.sun.star.io.IOException(e.toString());
}
}
public int readBytes(byte[][] b, int len) throws
com.sun.star.io.IOException
{
int count = 0;
try {
long bytesRead=0;
if (len >iIn.available()) {
bytesRead = iIn.read(b[0], 0, iIn.available());
}
else{
bytesRead = iIn.read(b[0], 0, len);
}
// Casting bytesRead to an int is okay, since the user can
// only pass in an integer length to read, so the bytesRead
// must <= len.
//
if (bytesRead <= 0) {
return(0);
}
return ((int)bytesRead);
} catch (IOException e) {
throw new com.sun.star.io.IOException("reader error: "+e.toString());
}
}
public int readSomeBytes(byte[][] b, int len) throws
com.sun.star.io.IOException
{
int count = 0;
try {
long bytesRead=0;
if (len >iIn.available()) {
bytesRead = iIn.read(b[0], 0, iIn.available());
}
else{
bytesRead = iIn.read(b[0], 0, len);
}
// Casting bytesRead to an int is okay, since the user can
// only pass in an integer length to read, so the bytesRead
// must <= len.
//
if (bytesRead <= 0) {
return(0);
}
return ((int)bytesRead);
} catch (IOException e) {
throw new com.sun.star.io.IOException("reader error: "+e.toString());
}
}
public void skipBytes(int n) throws
com.sun.star.io.IOException
{
int avail;
int tmpLongVal = n;
int tmpIntVal;
try {
avail = iIn.available();
} catch (IOException e) {
throw new com.sun.star.io.IOException(e.toString());
}
do {
if (tmpLongVal >= Integer.MAX_VALUE) {
tmpIntVal = Integer.MAX_VALUE;
} else {
// Casting is safe here.
tmpIntVal = (int)tmpLongVal;
}
tmpLongVal -= tmpIntVal;
try {
iIn.skip(tmpIntVal);
} catch (IOException e) {
throw new com.sun.star.io.IOException(e.toString());
}
} while (tmpLongVal > 0);
}
}
|
