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1
28
29 package com.caucho.jms.message;
30
31 import com.caucho.log.Log;
32 import com.caucho.util.L10N;
33
34 import javax.jms.JMSException  ;
35 import javax.jms.MessageFormatException ;
36 import java.util.logging.Logger ;
37
38
41 public class ObjectConverter {
42 static final Logger log = Log.open(ObjectConverter.class);
43 static final L10N L = new L10N(ObjectConverter.class);
44
45
48 public static boolean toBoolean(Object obj)
49 throws JMSException
50 {
51 if (obj instanceof Boolean )
52 return ((Boolean ) obj).booleanValue();
53 else if (obj == null || obj instanceof String )
54 return Boolean.valueOf((String ) obj).booleanValue();
55 else
56 throw new MessageFormatException (L.l("can't convert '{0}' to boolean",
57 obj.getClass().getName()));
58 }
59
60
63 public static byte toByte(Object obj)
64 throws JMSException
65 {
66 if (obj instanceof Byte )
67 return ((Number ) obj).byteValue();
68 else if (obj == null || obj instanceof String )
69 return (byte) Long.parseLong((String ) obj);
70 else
71 throw new MessageFormatException (L.l("can't convert '{0}' to byte",
72 obj.getClass().getName()));
73 }
74
75
78 public static short toShort(Object obj)
79 throws JMSException
80 {
81 if (obj instanceof Short || obj instanceof Byte )
82 return ((Number ) obj).shortValue();
83 else if (obj == null || obj instanceof String )
84 return (short) Long.parseLong((String ) obj);
85 else
86 throw new MessageFormatException (L.l("can't convert '{0}' to short",
87 obj.getClass().getName()));
88 }
89
90
93 public static int toInt(Object obj)
94 throws JMSException
95 {
96 if (obj instanceof Integer ||
97 obj instanceof Short ||
98 obj instanceof Byte )
99 return ((Number ) obj).intValue();
100 else if (obj == null || obj instanceof String )
101 return (int) Long.parseLong((String ) obj);
102 else
103 throw new MessageFormatException (L.l("can't convert '{0}' to int",
104 obj.getClass().getName()));
105 }
106
107
110 public static long toLong(Object obj)
111 throws JMSException
112 {
113 if (obj instanceof Long ||
114 obj instanceof Integer ||
115 obj instanceof Short ||
116 obj instanceof Byte )
117 return ((Number ) obj).longValue();
118 else if (obj == null || obj instanceof String )
119 return Long.parseLong((String ) obj);
120 else
121 throw new MessageFormatException (L.l("can't convert '{0}' to long",
122 obj.getClass().getName()));
123 }
124
125
128 public static float toFloat(Object obj)
129 throws JMSException
130 {
131 if (obj == null || obj instanceof Float )
132 return ((Number ) obj).floatValue();
133 else if (obj == null || obj instanceof String )
134 return (float) Double.parseDouble((String ) obj);
135 else
136 throw new MessageFormatException (L.l("can't convert '{0}' to float",
137 obj.getClass().getName()));
138 }
139
140
143 public static double toDouble(Object obj)
144 throws JMSException
145 {
146 if (obj == null || obj instanceof Float || obj instanceof Double )
147 return ((Number ) obj).doubleValue();
148 else if (obj == null || obj instanceof String )
149 return Double.parseDouble((String ) obj);
150 else
151 throw new MessageFormatException (L.l("can't convert '{0}' to double",
152 obj.getClass().getName()));
153 }
154
155
158 public static String toString(Object obj)
159 throws JMSException
160 {
161 if (obj == null)
162 return null;
163 else
164 return obj.toString();
165 }
166
167
170 public static char toChar(Object obj)
171 throws JMSException
172 {
173 if (obj == null)
174 throw new NullPointerException ();
175 else if (obj instanceof Character )
176 return ((Character ) obj).charValue();
177 else if (obj instanceof String )
178 return ((String ) obj).charAt(0);
179 else
180 throw new MessageFormatException (L.l("bad property {0}", obj));
181
182 }
183
184
187 public static byte []toBytes(Object obj)
188 throws JMSException
189 {
190 if (obj == null)
191 return null;
192 else if (obj instanceof byte[]) {
193 byte []bytes = (byte []) obj;
194 byte []newBytes = new byte[bytes.length];
195 System.arraycopy(bytes, 0, newBytes, 0, bytes.length);
196
197 return newBytes;
198 }
199 else if (obj instanceof String ) {
200 String string = toString(obj);
201 try {
202 return string.getBytes("UTF-8");
203 } catch (Exception e) {
204 throw new MessageFormatException (e.toString());
205 }
206 }
207 else
208 throw new MessageFormatException (L.l("can't convert {0} to byte[]",
209 obj.getClass().getName()));
210 }
211 }
212 |
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