54
55 package java.lang;
56
57 import java.io.*;
58 import java.util.*;
59
60
61 final class ProcessEnvironment
62 {
63 private static final HashMap<Variable,Value> theEnvironment;
64 private static final Map<String,String> theUnmodifiableEnvironment;
65 static final int MIN_NAME_LENGTH = 0;
66
67 static {
68 // We cache the C environment. This means that subsequent calls
69 // to putenv/setenv from C will not be visible from Java code.
70 byte[][] environ = environ();
71 theEnvironment = new HashMap<Variable,Value>(environ.length/2 + 3);
72 // Read environment variables back to front,
73 // so that earlier variables override later ones.
74 for (int i = environ.length-1; i > 0; i-=2)
75 theEnvironment.put(Variable.valueOf(environ[i-1]),
76 Value.valueOf(environ[i]));
77
78 theUnmodifiableEnvironment
79 = Collections.unmodifiableMap
80 (new StringEnvironment(theEnvironment));
81 }
82
83 /* Only for use by System.getenv(String) */
84 static String getenv(String name) {
85 return theUnmodifiableEnvironment.get(name);
86 }
87
88 /* Only for use by System.getenv() */
89 static Map<String,String> getenv() {
90 return theUnmodifiableEnvironment;
91 }
92
93 /* Only for use by ProcessBuilder.environment() */
94 static Map<String,String> environment() {
95 return new StringEnvironment
96 ((Map<Variable,Value>)(theEnvironment.clone()));
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54
55 package java.lang;
56
57 import java.io.*;
58 import java.util.*;
59
60
61 final class ProcessEnvironment
62 {
63 private static final HashMap<Variable,Value> theEnvironment;
64 private static final Map<String,String> theUnmodifiableEnvironment;
65 static final int MIN_NAME_LENGTH = 0;
66
67 static {
68 // We cache the C environment. This means that subsequent calls
69 // to putenv/setenv from C will not be visible from Java code.
70 byte[][] environ = environ();
71 theEnvironment = new HashMap<Variable,Value>(environ.length/2 + 3);
72 // Read environment variables back to front,
73 // so that earlier variables override later ones.
74 for (int i = environ.length-1; i > 0; i-=2) {
75 final Variable variable = Variable.valueOf(environ[i-1]);
76 if (!variable.toString().equals("DESKTOP_STARTUP_ID")) {
77 theEnvironment.put(variable,
78 Value.valueOf(environ[i]));
79 }
80 }
81
82 theUnmodifiableEnvironment
83 = Collections.unmodifiableMap
84 (new StringEnvironment(theEnvironment));
85 }
86
87 /* Only for use by System.getenv(String) */
88 static String getenv(String name) {
89 return theUnmodifiableEnvironment.get(name);
90 }
91
92 /* Only for use by System.getenv() */
93 static Map<String,String> getenv() {
94 return theUnmodifiableEnvironment;
95 }
96
97 /* Only for use by ProcessBuilder.environment() */
98 static Map<String,String> environment() {
99 return new StringEnvironment
100 ((Map<Variable,Value>)(theEnvironment.clone()));
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