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1
10
11 package org.mule.util;
12
13 import java.io.UnsupportedEncodingException  ;
14 import java.text.MessageFormat ;
15 import java.util.ArrayList ;
16 import java.util.Arrays ;
17 import java.util.Collection ;
18 import java.util.List ;
19 import java.util.Map ;
20
21 import org.apache.commons.lang.SystemUtils;
22 import org.mule.MuleRuntimeException;
23 import org.mule.config.MuleProperties;
24 import org.mule.config.i18n.CoreMessageConstants;
25 import org.mule.config.i18n.Message;
26
27
31 public class StringMessageUtils
33 {
34 public static final String DEFAULT_ENCODING = "UTF-8";
36 public static final String DEFAULT_OS_ENCODING = System.getProperty("file.encoding");
37
38 public static final int MAX_ELEMENTS = 50;
40
41 public static String getFormattedMessage(String msg, Object [] arguments)
42 {
43 if (arguments != null)
44 {
45 for (int i = 0; i < arguments.length; i++)
46 {
47 arguments[i] = toString(arguments[i]);
48 }
49 }
50 return MessageFormat.format(msg, arguments);
51 }
52
53 public static String getBoilerPlate(String message)
54 {
55 return getBoilerPlate(message, '*', 80);
56 }
57
58 public static String getBoilerPlate(String message, char c, int maxlength)
59 {
60 return getBoilerPlate(new ArrayList (Arrays.asList(new String []{message})), c, maxlength);
61 }
62
63 public static String getBoilerPlate(List messages, char c, int maxlength)
64 {
65 int size;
66 StringBuffer buf = new StringBuffer (messages.size() * maxlength);
67 int trimLength = maxlength - (c == ' ' ? 2 : 4);
68
69 for (int i = 0; i < messages.size(); i++)
70 {
71 size = messages.get(i).toString().length();
72 if (size > trimLength)
73 {
74 String temp = messages.get(i).toString();
75 int k = i;
76 int x;
77 int len;
78 messages.remove(i);
79 while (temp.length() > 0)
80 {
81 len = (trimLength < temp.length() ? trimLength : temp.length());
82 String msg = temp.substring(0, len);
83 x = msg.indexOf(SystemUtils.LINE_SEPARATOR);
84
85 if (x > -1)
86 {
87 msg = msg.substring(0, x);
88 len = x + 1;
89 }
90 else
91 {
92 x = msg.lastIndexOf(' ');
93 if (x > -1 && len == trimLength)
94 {
95 msg = msg.substring(0, x);
96 len = x + 1;
97 }
98 }
99 if (msg.startsWith(" "))
100 {
101 msg = msg.substring(1);
102 }
103
104 temp = temp.substring(len);
105 messages.add(k, msg);
106 k++;
107 }
108 }
109 }
110
111 buf.append(SystemUtils.LINE_SEPARATOR);
112 if (c != ' ')
113 {
114 buf.append(StringUtils.repeat(c, maxlength));
115 }
116
117 for (int i = 0; i < messages.size(); i++)
118 {
119 buf.append(SystemUtils.LINE_SEPARATOR);
120 if (c != ' ')
121 {
122 buf.append(c);
123 }
124 buf.append(" ");
125 buf.append(messages.get(i));
126
127 int padding;
128 try
129 {
130 padding = trimLength - messages.get(i).toString().getBytes(getOSEncoding()).length;
131 }
132 catch (UnsupportedEncodingException ueex)
133 {
134 throw new MuleRuntimeException(new Message(
135 CoreMessageConstants.FAILED_TO_CONVERT_STRING_USING_X_ENCODING, getOSEncoding()));
136 }
137 if (padding > 0)
138 {
139 buf.append(StringUtils.repeat(' ', padding));
140 }
141 buf.append(' ');
142 if (c != ' ')
143 {
144 buf.append(c);
145 }
146 }
147 buf.append(SystemUtils.LINE_SEPARATOR);
148 if (c != ' ')
149 {
150 buf.append(StringUtils.repeat(c, maxlength));
151 }
152 return buf.toString();
153 }
154
155 public static String truncate(String message, int length, boolean includeCount)
156 {
157 if (message == null)
158 {
159 return null;
160 }
161 if (message.length() <= length)
162 {
163 return message;
164 }
165 String result = message.substring(0, length) + "...";
166 if (includeCount)
167 {
168 result += "[" + length + " of " + message.length() + "]";
169 }
170 return result;
171 }
172
173 public static byte[] getBytes(String string)
174 {
175 try
176 {
177 return string.getBytes(getEncoding());
178 }
179 catch (UnsupportedEncodingException e)
180 {
181 return null;
183 }
184 }
185
186 public static String getString(byte[] bytes, String encoding)
187 {
188 try
189 {
190 return new String (bytes, encoding);
191 }
192 catch (UnsupportedEncodingException e)
193 {
194 return null;
196 }
197 }
198
199 private static String getEncoding()
200 {
201 return System.getProperty(MuleProperties.MULE_ENCODING_SYSTEM_PROPERTY, DEFAULT_ENCODING);
206 }
207
208 private static String getOSEncoding()
209 {
210 return System.getProperty(MuleProperties.MULE_OS_ENCODING_SYSTEM_PROPERTY, DEFAULT_OS_ENCODING);
215 }
216
217
222 public static String toString(Object o)
223 {
224 if (o == null)
225 {
226 return "null";
227 }
228 else if (o instanceof Class )
229 {
230 return ((Class )o).getName();
231 }
232 else if (o instanceof Map )
233 {
234 return MapUtils.toString((Map )o, false);
235 }
236 else if (o.getClass().isArray())
237 {
238 return ArrayUtils.toString(o, MAX_ELEMENTS);
239 }
240 else if (o instanceof Collection )
241 {
242 return CollectionUtils.toString((Collection )o, MAX_ELEMENTS);
243 }
244 else
245 {
246 return o.toString();
247 }
248 }
249
250 }
251 |
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