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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* 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.bridges.jni_uno;
import com.sun.star.lib.util.AsynchronousFinalizer;
import com.sun.star.lib.util.NativeLibraryLoader;
import com.sun.star.uno.Type;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.IEnvironment;
import com.sun.star.uno.IQueryInterface;
//==============================================================================
public final class JNI_proxy implements java.lang.reflect.InvocationHandler
{
static {
NativeLibraryLoader.loadLibrary(JNI_proxy.class.getClassLoader(),
"java_uno");
}
protected static ClassLoader s_classloader =
JNI_proxy.class.getClassLoader();
protected static Class s_InvocationHandler [] =
new Class [] { java.lang.reflect.InvocationHandler.class };
protected long m_bridge_handle;
protected IEnvironment m_java_env;
protected long m_receiver_handle;
protected long m_td_handle;
protected Type m_type;
protected String m_oid;
protected Class m_class;
//__________________________________________________________________________
public static String get_stack_trace( Throwable throwable )
throws Throwable
{
boolean current_trace = false;
if (null == throwable)
{
throwable = new Throwable();
current_trace = true;
}
java.io.StringWriter string_writer =
new java.io.StringWriter();
java.io.PrintWriter print_writer =
new java.io.PrintWriter( string_writer, true );
throwable.printStackTrace( print_writer );
print_writer.flush();
print_writer.close();
string_writer.flush();
String trace = string_writer.toString();
if (current_trace)
{
// cut out first two lines
int n = trace.indexOf( '\n' );
n = trace.indexOf( '\n', n +1 );
trace = trace.substring( n +1 );
}
return "\njava stack trace:\n" + trace;
}
//__________________________________________________________________________
private native void finalize( long bridge_handle );
//__________________________________________________________________________
public void finalize()
{
AsynchronousFinalizer.add(new AsynchronousFinalizer.Job() {
public void run() throws Throwable {
JNI_proxy.this.finalize( m_bridge_handle );
}
});
}
//__________________________________________________________________________
private JNI_proxy(
long bridge_handle, IEnvironment java_env,
long receiver_handle, long td_handle, Type type, String oid )
{
m_bridge_handle = bridge_handle;
m_java_env = java_env;
m_receiver_handle = receiver_handle;
m_td_handle = td_handle;
m_type = type;
m_oid = oid;
m_class = m_type.getZClass();
}
//__________________________________________________________________________
public static Object create(
long bridge_handle, IEnvironment java_env,
long receiver_handle, long td_handle, Type type, String oid,
java.lang.reflect.Constructor proxy_ctor )
throws Throwable
{
JNI_proxy handler = new JNI_proxy(
bridge_handle, java_env, receiver_handle, td_handle, type, oid );
Object proxy = proxy_ctor.newInstance( new Object [] { handler } );
return java_env.registerInterface( proxy, new String [] { oid }, type );
}
//__________________________________________________________________________
public static java.lang.reflect.Constructor get_proxy_ctor( Class clazz )
throws Throwable
{
Class proxy_class = java.lang.reflect.Proxy.getProxyClass(
s_classloader,
new Class [] { clazz, IQueryInterface.class,
com.sun.star.lib.uno.Proxy.class } );
return proxy_class.getConstructor( s_InvocationHandler );
}
//__________________________________________________________________________
private native Object dispatch_call(
long bridge_handle, String decl_class, String method, Object args [] )
throws Throwable;
// InvocationHandler impl
//__________________________________________________________________________
public Object invoke(
Object proxy, java.lang.reflect.Method method, Object args [] )
throws Throwable
{
Class decl_class = method.getDeclaringClass();
String method_name = method.getName();
if (Object.class.equals( decl_class ))
{
if (method_name.equals( "hashCode" ))
{
// int hashCode()
return new Integer( m_oid.hashCode() );
}
else if (method_name.equals( "equals" ))
{
// boolean equals( Object obj )
return isSame(args[0]);
}
else if (method_name.equals( "toString" ))
{
// String toString()
return this.toString() + " [oid=" + m_oid +
", type=" + m_type.getTypeName() + "]";
}
}
// UNO interface call
else if (decl_class.isAssignableFrom( m_class ))
{
// dispatch interface call
return dispatch_call(
m_bridge_handle, decl_class.getName(), method_name, args );
}
// IQueryInterface impl
else if (IQueryInterface.class.equals( decl_class ))
{
if (method_name.equals( "queryInterface" ))
{
// Object queryInterface( Type type )
Object registered_proxy =
m_java_env.getRegisteredInterface( m_oid, (Type)args[ 0 ] );
if (null == registered_proxy)
{
return dispatch_call(
m_bridge_handle,
"com.sun.star.uno.XInterface", method_name, args );
}
else
{
return registered_proxy;
}
}
else if (method_name.equals( "isSame" ))
{
// boolean isSame( Object object )
return isSame(args[0]);
}
else if (method_name.equals( "getOid" ))
{
// String getOid()
return m_oid;
}
}
throw new com.sun.star.uno.RuntimeException(
"[jni_uno bridge error] unexpected call on proxy " +
proxy.toString() + ": " + method.toString() );
}
private Boolean isSame(Object obj) {
return new Boolean(obj != null
&& m_oid.equals(UnoRuntime.generateOid(obj)));
}
}
|
