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1
34
35
36 package com.micronova.jsp.tag;
37
38 import java.util.*;
39 import java.io.*;
40 import com.micronova.util.*;
41
42 public class SystemTag extends MapTag
43 {
44 public final static String  COMMAND = "command";
45 public final static String STDIN = "stdin";
46 public final static String STDOUT = "stdout";
47 public final static String STDERR = "stderr";
48 public final static String RC = "rc";
49
50 private static final String DEFAULTEXPORT = "${" + VALUEVAR + "." + STDOUT + "}";
51
52 public void init()
53 {
54 super.init();
55
56 _export = DEFAULTEXPORT;
57 }
58
59 public Object processValue(Object tagValue) throws Exception
60 {
61 NestedMap map = _map;
62
63 String command = (String )map.get(COMMAND);
64 String stdin = (String )map.get(STDIN);
65
66 if (stdin == null)
67 {
68 stdin = "";
69 }
70
71 if (command != null)
72 {
73 ByteArrayInputStream bIn = new ByteArrayInputStream(stdin.getBytes());
74 ByteArrayOutputStream bOut = new ByteArrayOutputStream();
75 ByteArrayOutputStream bErr = new ByteArrayOutputStream();
76
77 Process p = Runtime.getRuntime().exec(command);
78
79 Shell shell = new Shell(p, bIn, bOut, bErr);
80
81 int rc = shell.exec();
82
83 map.put(RC, new Integer (rc));
84
85 map.put(STDOUT, bOut.toString("iso-8859-1"));
86
87 map.put(STDERR, bErr.toString("iso-8859-1"));
88 }
89
90 return tagValue;
91 }
92
93 public void setCommand(Object expression) throws Exception
94 {
95 _map.put(COMMAND, evaluateAttribute(COMMAND, expression, String .class));
96 }
97
98 public void setStdin(Object expression) throws Exception
99 {
100 _map.put(STDIN, evaluateAttribute(STDIN, expression, String .class));
101 }
102 }
103 |
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