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1
55
56 package org.apache.bsf.debug.util;
57
58 import java.security.*;
59 import java.io.OutputStream  ;
60 import java.io.PrintStream ;
61 import java.lang.String ;
62 import java.lang.Integer ;
63 import java.util.Hashtable ;
64
65 public class DebugLog {
66 public static final int BSF_LOG_L0 = 0;
67 public static final int BSF_LOG_L1 = 1;
68 public static final int BSF_LOG_L2 = 2;
69 public static final int BSF_LOG_L3 = 3;
70 public static Hashtable logLevels;
71
72 private static int loglevel = 0;
73 private static PrintStream debugStream = System.err;
74
75 static {
76 Integer logprop = Integer.getInteger("org.apache.bsf.debug.logLevel", 0);
77 setLogLevel(logprop.intValue());
78
79 logLevels = new Hashtable ();
80 logLevels.put("BSF_LOG_L0", new Integer (BSF_LOG_L0));
81 logLevels.put("BSF_LOG_L1", new Integer (BSF_LOG_L1));
82 logLevels.put("BSF_LOG_L2", new Integer (BSF_LOG_L2));
83 logLevels.put("BSF_LOG_L3", new Integer (BSF_LOG_L3));
84 }
85
86 public static void stdoutPrint(Object obj, int prio) {
87 streamPrint(obj, System.out, prio);
88 }
89
90 public static void stdoutPrintln(Object obj, int prio) {
91 streamPrintln(obj, System.out, prio);
92 }
93
94 public static void stderrPrint(Object obj, int prio) {
95 streamPrint(obj, System.err, prio);
96 }
97
98 public static void stderrPrintln(Object obj, int prio) {
99 streamPrintln(obj, System.err, prio);
100 }
101
102 public static void debugPrint(Object obj, int prio) {
103 streamPrint(obj, debugStream, prio);
104 }
105
106 public static void debugPrintln(Object obj, int prio) {
107 streamPrintln(obj, debugStream, prio);
108 }
109
110 public static void setDebugStream(PrintStream dbgStream) {
111 debugStream = dbgStream;
112 }
113
114 public static PrintStream getDebugStream() {
115 return debugStream;
116 }
117
118 public static void setLogLevel(int loglvl) {
119 if (loglvl != loglevel) {
120 if (loglvl >= 0) {
121 try {
122 final int loglvlf = loglvl;
123 AccessController.doPrivileged(new PrivilegedExceptionAction() {
124 public Object run() throws Exception {
125 System.setProperty("org.apache.bsf.debug.logLevel", String.valueOf(loglvlf));
126 return null;
127 }
128 });
129 loglevel = loglvlf;
130 }
131 catch (PrivilegedActionException prive) {
132 Exception e = prive.getException();
133 System.err.println("Unable to set loglevel: "
134 + e.getMessage());
135 e.printStackTrace();
136 }
137 }
138 }
139 }
140
141 public static int getLogLevel() {
142 return loglevel;
143 }
144
145 public static void streamPrint(Object obj,
146 OutputStream ostrm,
147 int prio) {
148 if (loglevel >= prio) {
149 PrintStream prs =
150 (ostrm instanceof PrintStream ) ? (PrintStream ) ostrm
151 : new PrintStream (ostrm, true);
152 prs.print(obj);
153 }
154 }
155
156 public static void streamPrintln(Object obj,
157 OutputStream ostrm,
158 int prio) {
159 if (loglevel >= prio) {
160 PrintStream prs =
161 (ostrm instanceof PrintStream ) ? (PrintStream ) ostrm
162 : new PrintStream (ostrm, true);
163 prs.println(obj);
164 }
165 }
166 }
167 |
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