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
|
/*******************************************************************************
* Copyright (c) 2005, 2010 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.engine;
import java.util.*;
import java.util.Map.Entry;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.equinox.p2.engine.spi.ProvisioningAction;
import org.eclipse.equinox.p2.engine.spi.Touchpoint;
public class ParameterizedProvisioningAction extends ProvisioningAction {
private ProvisioningAction action;
private Map<String, String> actionParameters;
private String actionText;
public ParameterizedProvisioningAction(ProvisioningAction action, Map<String, String> actionParameters, String actionText) {
if (action == null || actionParameters == null)
throw new IllegalArgumentException(Messages.ParameterizedProvisioningAction_action_or_parameters_null);
this.action = action;
this.actionParameters = actionParameters;
this.actionText = actionText;
}
public IStatus execute(Map<String, Object> parameters) {
parameters = processActionParameters(parameters);
return action.execute(parameters);
}
public IStatus undo(Map<String, Object> parameters) {
parameters = processActionParameters(parameters);
return action.undo(parameters);
}
private Map<String, Object> processActionParameters(Map<String, Object> parameters) {
Map<String, Object> result = new HashMap<String, Object>(parameters);
for (Entry<String, String> entry : actionParameters.entrySet()) {
String name = entry.getKey();
String value = processVariables(entry.getValue(), parameters);
result.put(name, value);
}
return Collections.unmodifiableMap(result);
}
private String processVariables(String parameterValue, Map<String, Object> parameters) {
int variableBeginIndex = parameterValue.indexOf("${"); //$NON-NLS-1$
if (variableBeginIndex == -1)
return parameterValue;
int variableEndIndex = parameterValue.indexOf('}', variableBeginIndex + 2);
if (variableEndIndex == -1)
return parameterValue;
String preVariable = parameterValue.substring(0, variableBeginIndex);
String variableName = parameterValue.substring(variableBeginIndex + 2, variableEndIndex);
Object value = parameters.get(variableName);
// try to replace this parameter with a character
if (value == null && variableName.charAt(0) == '#') {
try {
int code = Integer.parseInt(variableName.substring(1));
if (code >= 0 && code < 65536)
value = Character.toString((char) code);
} catch (Throwable t) {
// ignore and leave value as null
}
}
String variableValue = value == null ? "" : value.toString(); //$NON-NLS-1$
String postVariable = processVariables(parameterValue.substring(variableEndIndex + 1), parameters);
return preVariable + variableValue + postVariable;
}
public ProvisioningAction getAction() {
return action;
}
public Map<String, String> getParameters() {
return actionParameters;
}
public String getActionText() {
return actionText;
}
public Touchpoint getTouchpoint() {
return action.getTouchpoint();
}
public void setTouchpoint(Touchpoint touchpoint) {
throw new UnsupportedOperationException();
}
}
|
