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1
28
29 package com.caucho.eswrap.java.io;
30
31 import com.caucho.es.Call;
32 import com.caucho.vfs.Path;
33 import com.caucho.vfs.ReadStream;
34
35 import java.io.IOException  ;
36 import java.io.InputStream ;
37 import java.io.Reader ;
38 import java.io.Writer ;
39
40 public class WriterEcmaWrap {
41 public static void writeByte(Writer os, int ch)
42 throws Exception
43 {
44 os.write((char) ch);
45 }
46
47 public static void write(Writer os, Call call, int length)
48 throws Exception
49 {
50 for (int i = 0; i < length; i++) {
51 os.write(call.getArg(i, length).toString());
52 }
53 }
54
55 public static void writeln(Writer os, Call call, int length)
56 throws Exception
57 {
58 for (int i = 0; i < length; i++) {
59 os.write(call.getArg(i, length).toString());
60 }
61
62 os.write('\n');
63 }
64
65 public static void printf(Writer os, Call eval, int length)
66 throws Throwable
67 {
68 if (length == 0)
69 return;
70
71 String result = eval.printf(length);
72
73 os.write(result);
74 }
75
76 public static void writeFile(Writer os, Path path)
77 throws IOException
78 {
79 char []buf = new char[256];
80
81 ReadStream stream = path.openRead();
82 try {
83 int length;
84 while ((length = stream.read(buf, 0, buf.length)) > 0) {
85 os.write(buf, 0, length);
86 }
87 } finally {
88 stream.close();
89 }
90 }
91
92 public static void writeStream(Writer os, Call call, int length)
93 throws Throwable
94 {
95 if (length < 1)
96 return;
97
98 char []buf = new char[256];
99 int len;
100
101 Object obj = call.getArgObject(0, length);
102 if (obj instanceof ReadStream) {
103 ReadStream is = (ReadStream) obj;
104 while ((len = is.read(buf, 0, buf.length)) > 0) {
105 os.write(buf, 0, len);
106 }
107 }
108 else if (obj instanceof InputStream ) {
109 int ch;
110 InputStream is = (InputStream ) obj;
111 while ((ch = is.read()) >= 0)
112 os.write(ch);
113 }
114 else if (obj instanceof Reader ) {
115 int ch;
116 Reader is = (Reader ) obj;
117 while ((len = is.read(buf, 0, buf.length)) > 0) {
118 os.write(buf, 0, len);
119 }
120 }
121 else
122 throw new IllegalArgumentException ("expected stream at " +
123 obj.getClass().getName());
124 }
125 }
126
127 |
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