blob: b66672b74639099193afff6fa82d26b4009537d1 (
plain) (
blame)
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
|
/*******************************************************************************
* Copyright (c) 1997-2007 by ProSyst Software GmbH
* http://www.prosyst.com
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* ProSyst Software GmbH - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.ip.impl;
import java.util.*;
import org.eclipse.equinox.internal.ip.ProvisioningInfoProvider;
import org.osgi.service.provisioning.ProvisioningService;
/**
* Provisioning data implementation. This Dictionary do not store a Strings with
* length 0 (skips them). Also skips on put values "null".
*
* @author Avgustin Marinov
* @author Pavlin Dobrev
* @version 1.0
*/
public class ProvisioningData extends Hashtable {
private static final long serialVersionUID = 1L;
/** List of all providers used for data load. The highest ranking is last. */
Vector providers = new Vector();
public final static String PROVISIONING_ERROR = "provisioning.error";
/**
* Constructs ProvisioningData.
*
* @param bc
* bundle context.
* @param agent
* ProvisioningAgent.
*/
ProvisioningData() {
super.put(ProvisioningService.PROVISIONING_UPDATE_COUNT, new Integer(0));
}
/**
* @see java.util.Hashtable#put(java.lang.Object, java.lang.Object)
*/
public Object put(Object key, Object value) {
throw newUnsupportedOperation("put");
}
public Object remove(Object key) {
throw newUnsupportedOperation("remove");
}
/**
* Gets value for key using all providers. The service with highest ranking.
*
* @see java.util.Hashtable#get(java.lang.Object)
*/
public synchronized Object get(Object key) {
Object value = super.get(key);
Object emptyCash = null;
// if somewhere have "" or byte[0] it will be overiden next ocurence of
// the
// value is found - for CM set "" when there is not value set
boolean hasEmptyString = value != null && isEmpty(value);
if (hasEmptyString)
emptyCash = value;
if (value == null || hasEmptyString) {
synchronized (providers) {
for (int i = providers.size(); i-- > 0;) {
value = ((ProvisioningInfoProvider) providers.elementAt(i)).get(key);
if (value != null && !isEmpty(value)) {
break;
}
if (value != null && !hasEmptyString && isEmpty(value)) {
if (!hasEmptyString)
emptyCash = value;
hasEmptyString = true;
}
}
}
}
if (value == null && hasEmptyString) {
value = emptyCash;
}
return value;
}
void set(Dictionary newData) {
super.clear();
add(newData);
}
void add(Dictionary toAdd) {
if (toAdd == null) {
return;
}
for (Enumeration e = toAdd.keys(); e.hasMoreElements();) {
Object key = e.nextElement();
if (key instanceof String) {
Object value = toAdd.get(key);
if (value instanceof String || value instanceof byte[] || (key.equals(ProvisioningService.PROVISIONING_UPDATE_COUNT) && value instanceof Integer)) {
if (ProvisioningService.PROVISIONING_REFERENCE.equals(key)) {
value = ((String) value).trim();
}
super.put(key, value);
}
}
}
}
void putUC(Integer uc) {
super.put(ProvisioningService.PROVISIONING_UPDATE_COUNT, uc);
}
void putPrivate(String key, String value) {
if (value == null) {
super.remove(key);
} else {
super.put(key, value);
}
}
void setError(int code, String message) {
String value = code + " " + ((message != null) ? message : " No details.");
super.put(PROVISIONING_ERROR, value);
}
void clearError() {
super.remove(PROVISIONING_ERROR);
}
private final boolean isEmpty(Object value) {
return (value instanceof String && ((String) value).length() == 0) || (value instanceof byte[] && ((byte[]) value).length == 0);
}
private final RuntimeException newUnsupportedOperation(String methodName) {
RuntimeException e;
try {
e = (RuntimeException) Class.forName("java.lang.UnsupportedOperationException").newInstance();
} catch (Throwable t) {
e = new IllegalStateException(methodName + " is unsupported method for provisioning dictionary!");
}
return e;
}
}
|
