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
|
/*******************************************************************************
* Copyright (c) 2005, 2013 Intel Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Intel Corporation - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.envvar;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.cdt.core.envvar.IEnvironmentVariable;
import org.eclipse.cdt.utils.envvar.EnvVarOperationProcessor;
/**
* This class implements the "merging" functionality of environment variables
* Used by the EnvironmentVariableProvider to "merge" the sets of macros returned
* by different suppliers into one set returned to the user
*
* @since 3.0
*
*/
public class EnvVarCollector {
private Map<String, EnvVarDescriptor> fMap = null;
public EnvVarCollector() {
}
/**
* adds an array of environment variables to the set of variables held by this collector
* performing environment variable operations
* @param vars
*/
public void add(IEnvironmentVariable vars[]) {
add(vars, null, -1, null);
}
public void add(IEnvironmentVariable vars[], IEnvironmentContextInfo info, int num,
ICoreEnvironmentVariableSupplier supplier) {
if (vars == null)
return;
boolean isCaseInsensitive = !EnvironmentVariableManager.getDefault().isVariableCaseSensitive();
for (int i = 0; i < vars.length; i++) {
IEnvironmentVariable var = vars[i];
if (var != null) {
String name = var.getName();
if (isCaseInsensitive)
name = name.toUpperCase();
boolean noCheck = false;
if (fMap == null) {
noCheck = true;
fMap = new HashMap<String, EnvVarDescriptor>();
}
EnvVarDescriptor des = null;
if (noCheck || (des = fMap.get(name)) == null) {
des = new EnvVarDescriptor(var, info, num, supplier);
fMap.put(name, des);
} else {
des.setContextInfo(info);
des.setSupplierNum(num);
des.setVariable(EnvVarOperationProcessor.performOperation(des.getOriginalVariable(), var));
}
}
}
}
/**
* Returns an array of variables held by this collector
*
* @param includeRemoved true if removed variables should be included in the resulting array
* @return IBuildEnvironmentVariable[]
*/
public EnvVarDescriptor[] toArray(boolean includeRemoved) {
if (fMap == null)
return new EnvVarDescriptor[0];
Collection<EnvVarDescriptor> values = fMap.values();
List<EnvVarDescriptor> list = new ArrayList<EnvVarDescriptor>();
Iterator<EnvVarDescriptor> iter = values.iterator();
while (iter.hasNext()) {
EnvVarDescriptor des = iter.next();
if (des != null && (includeRemoved || des.getOperation() != IEnvironmentVariable.ENVVAR_REMOVE))
list.add(des);
}
return list.toArray(new EnvVarDescriptor[list.size()]);
}
/**
* Returns a variable of a given name held by this collector
*
* @param name a variable name
* @return IBuildEnvironmentVariable
*/
public EnvVarDescriptor getVariable(String name) {
if (fMap == null)
return null;
if (!EnvironmentVariableManager.getDefault().isVariableCaseSensitive())
name = name.toUpperCase();
return fMap.get(name);
}
/**
* Returns an array of variables held by this collector
* The call to this method is equivalent of calling toArray(true)
*
* @return IBuildEnvironmentVariable[]
*/
public EnvVarDescriptor[] getVariables() {
return toArray(true);
}
public void clear() {
if (fMap != null)
fMap.clear();
}
}
|
