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package org.mule.providers.jms; |
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import org.mule.util.ArrayUtils; |
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import org.mule.util.StringUtils; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.ObjectOutputStream; |
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import java.io.Serializable; |
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import java.util.Enumeration; |
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import java.util.Hashtable; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.Vector; |
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|
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import javax.jms.BytesMessage; |
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import javax.jms.Destination; |
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import javax.jms.JMSException; |
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import javax.jms.MapMessage; |
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import javax.jms.Message; |
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import javax.jms.MessageEOFException; |
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import javax.jms.ObjectMessage; |
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import javax.jms.Queue; |
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import javax.jms.Session; |
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import javax.jms.StreamMessage; |
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import javax.jms.TextMessage; |
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import javax.jms.Topic; |
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import org.apache.commons.io.output.ByteArrayOutputStream; |
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|
45 | 0 | public class JmsMessageUtils |
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{ |
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public static final char REPLACEMENT_CHAR = '_'; |
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public static String encodeHeader(String name) |
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{ |
57 | 0 | if (StringUtils.isEmpty(name)) |
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{ |
59 | 0 | throw new IllegalArgumentException("Header name to encode must not be null or empty"); |
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} |
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|
62 | 0 | int i = 0, length = name.length(); |
63 | 0 | while (i < length && Character.isJavaIdentifierPart(name.charAt(i))) |
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{ |
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|
66 | 0 | i++; |
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} |
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|
69 | 0 | if (i == length) |
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{ |
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|
72 | 0 | return name; |
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} |
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else |
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{ |
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|
77 | 0 | StringBuffer sb = new StringBuffer(name); |
78 | 0 | for (int j = i; j < length; j++) |
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{ |
80 | 0 | if (!Character.isJavaIdentifierPart(sb.charAt(j))) |
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{ |
82 | 0 | sb.setCharAt(j, REPLACEMENT_CHAR); |
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} |
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} |
85 | 0 | return sb.toString(); |
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} |
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} |
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|
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public static Message toMessage(Object object, Session session) throws JMSException |
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{ |
91 | 0 | if (object instanceof Message) |
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{ |
93 | 0 | return (Message)object; |
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} |
95 | 0 | else if (object instanceof String) |
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{ |
97 | 0 | return session.createTextMessage((String)object); |
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} |
99 | 0 | else if (object instanceof Map) |
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{ |
101 | 0 | MapMessage mMsg = session.createMapMessage(); |
102 | 0 | Map src = (Map)object; |
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|
104 | 0 | for (Iterator i = src.entrySet().iterator(); i.hasNext();) |
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{ |
106 | 0 | Map.Entry entry = (Map.Entry)i.next(); |
107 | 0 | mMsg.setObject(entry.getKey().toString(), entry.getValue()); |
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} |
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|
110 | 0 | return mMsg; |
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} |
112 | 0 | else if (object instanceof InputStream) |
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{ |
114 | 0 | StreamMessage sMsg = session.createStreamMessage(); |
115 | 0 | InputStream temp = (InputStream)object; |
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|
117 | 0 | byte[] buffer = new byte[4096]; |
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int len; |
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|
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try |
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{ |
122 | 0 | while ((len = temp.read(buffer)) != -1) |
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{ |
124 | 0 | sMsg.writeBytes(buffer, 0, len); |
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} |
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} |
127 | 0 | catch (IOException e) |
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{ |
129 | 0 | throw new JMSException("Failed to read input stream to create a stream message: " + e); |
130 | 0 | } |
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|
132 | 0 | return sMsg; |
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} |
134 | 0 | else if (object instanceof byte[]) |
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{ |
136 | 0 | BytesMessage bMsg = session.createBytesMessage(); |
137 | 0 | bMsg.writeBytes((byte[])object); |
138 | 0 | return bMsg; |
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} |
140 | 0 | else if (object instanceof Serializable) |
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{ |
142 | 0 | ObjectMessage oMsg = session.createObjectMessage(); |
143 | 0 | oMsg.setObject((Serializable)object); |
144 | 0 | return oMsg; |
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} |
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else |
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{ |
148 | 0 | throw new JMSException( |
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"Source was not a supported type, data must be Serializable, String, byte[], Map or InputStream"); |
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} |
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} |
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|
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public static Object toObject(Message source, String jmsSpec) throws JMSException, IOException |
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{ |
155 | 0 | if (source instanceof ObjectMessage) |
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{ |
157 | 0 | return ((ObjectMessage)source).getObject(); |
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} |
159 | 0 | else if (source instanceof MapMessage) |
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{ |
161 | 0 | Hashtable map = new Hashtable(); |
162 | 0 | MapMessage m = (MapMessage)source; |
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|
164 | 0 | for (Enumeration e = m.getMapNames(); e.hasMoreElements();) |
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{ |
166 | 0 | String name = (String)e.nextElement(); |
167 | 0 | Object obj = m.getObject(name); |
168 | 0 | map.put(name, obj); |
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} |
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|
171 | 0 | return map; |
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} |
173 | 0 | else if (source instanceof TextMessage) |
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{ |
175 | 0 | return ((TextMessage)source).getText(); |
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} |
177 | 0 | else if (source instanceof BytesMessage) |
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{ |
179 | 0 | return toByteArray(source, jmsSpec); |
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} |
181 | 0 | else if (source instanceof StreamMessage) |
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{ |
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try |
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{ |
185 | 0 | StreamMessage sMsg = (StreamMessage)source; |
186 | 0 | Vector result = new Vector(); |
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Object obj; |
188 | 0 | while ((obj = sMsg.readObject()) != null) |
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{ |
190 | 0 | result.addElement(obj); |
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} |
192 | 0 | return result; |
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} |
194 | 0 | catch (MessageEOFException eof) |
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{ |
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|
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} |
198 | 0 | catch (Exception e) |
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{ |
200 | 0 | throw new JMSException("Failed to extract information from JMS Stream Message: " + e); |
201 | 0 | } |
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} |
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|
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|
205 | 0 | return source; |
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} |
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public static byte[] toByteArray(Message message, String jmsSpec) throws JMSException, IOException |
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{ |
224 | 0 | if (message instanceof BytesMessage) |
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{ |
226 | 0 | BytesMessage bMsg = (BytesMessage)message; |
227 | 0 | bMsg.reset(); |
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|
229 | 0 | if (JmsConstants.JMS_SPECIFICATION_11.equals(jmsSpec)) |
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{ |
231 | 0 | long bmBodyLength = bMsg.getBodyLength(); |
232 | 0 | if (bmBodyLength > Integer.MAX_VALUE) |
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{ |
234 | 0 | throw new JMSException("Size of BytesMessage exceeds Integer.MAX_VALUE; " |
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+ "please consider using JMS StreamMessage instead"); |
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} |
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|
238 | 0 | if (bmBodyLength > 0) |
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{ |
240 | 0 | byte[] bytes = new byte[(int)bmBodyLength]; |
241 | 0 | bMsg.readBytes(bytes); |
242 | 0 | return bytes; |
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} |
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else |
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{ |
246 | 0 | return ArrayUtils.EMPTY_BYTE_ARRAY; |
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} |
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} |
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else |
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{ |
251 | 0 | ByteArrayOutputStream baos = new ByteArrayOutputStream(4096); |
252 | 0 | byte[] buffer = new byte[4096]; |
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int len; |
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|
255 | 0 | while ((len = bMsg.readBytes(buffer)) != -1) |
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{ |
257 | 0 | baos.write(buffer, 0, len); |
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} |
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|
260 | 0 | if (baos.size() > 0) |
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{ |
262 | 0 | return baos.toByteArray(); |
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} |
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else |
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{ |
266 | 0 | return ArrayUtils.EMPTY_BYTE_ARRAY; |
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} |
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} |
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} |
270 | 0 | else if (message instanceof StreamMessage) |
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{ |
272 | 0 | StreamMessage sMsg = (StreamMessage)message; |
273 | 0 | sMsg.reset(); |
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|
275 | 0 | ByteArrayOutputStream baos = new ByteArrayOutputStream(4096); |
276 | 0 | byte[] buffer = new byte[4096]; |
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int len; |
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|
279 | 0 | while ((len = sMsg.readBytes(buffer)) != -1) |
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{ |
281 | 0 | baos.write(buffer, 0, len); |
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} |
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|
284 | 0 | return baos.toByteArray(); |
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} |
286 | 0 | else if (message instanceof ObjectMessage) |
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{ |
288 | 0 | ObjectMessage oMsg = (ObjectMessage)message; |
289 | 0 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
290 | 0 | ObjectOutputStream os = new ObjectOutputStream(baos); |
291 | 0 | os.writeObject(oMsg.getObject()); |
292 | 0 | os.flush(); |
293 | 0 | os.close(); |
294 | 0 | return baos.toByteArray(); |
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} |
296 | 0 | else if (message instanceof TextMessage) |
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{ |
298 | 0 | TextMessage tMsg = (TextMessage)message; |
299 | 0 | String tMsgText = tMsg.getText(); |
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|
301 | 0 | if (null == tMsgText) |
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{ |
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|
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|
305 | 0 | return ArrayUtils.EMPTY_BYTE_ARRAY; |
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} |
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else |
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{ |
309 | 0 | return tMsgText.getBytes(); |
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} |
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} |
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else |
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{ |
314 | 0 | throw new JMSException("Cannot get bytes from Map Message"); |
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} |
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} |
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|
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public static String getNameForDestination(Destination dest) throws JMSException |
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{ |
320 | 0 | if (dest instanceof Queue) |
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{ |
322 | 0 | return ((Queue)dest).getQueueName(); |
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} |
324 | 0 | else if (dest instanceof Topic) |
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{ |
326 | 0 | return ((Topic)dest).getTopicName(); |
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} |
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else |
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{ |
330 | 0 | return null; |
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} |
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} |
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|
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public static Message copyJMSProperties(Message from, Message to, JmsConnector connector) |
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throws JMSException |
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{ |
337 | 0 | if (connector.supportsProperty(JmsConstants.JMS_CORRELATION_ID)) |
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{ |
339 | 0 | to.setJMSCorrelationID(from.getJMSCorrelationID()); |
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} |
341 | 0 | if (connector.supportsProperty(JmsConstants.JMS_DELIVERY_MODE)) |
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{ |
343 | 0 | to.setJMSDeliveryMode(from.getJMSDeliveryMode()); |
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} |
345 | 0 | if (connector.supportsProperty(JmsConstants.JMS_DESTINATION)) |
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{ |
347 | 0 | to.setJMSDestination(from.getJMSDestination()); |
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} |
349 | 0 | if (connector.supportsProperty(JmsConstants.JMS_EXPIRATION)) |
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{ |
351 | 0 | to.setJMSExpiration(from.getJMSExpiration()); |
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} |
353 | 0 | if (connector.supportsProperty(JmsConstants.JMS_MESSAGE_ID)) |
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{ |
355 | 0 | to.setJMSMessageID(from.getJMSMessageID()); |
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} |
357 | 0 | if (connector.supportsProperty(JmsConstants.JMS_PRIORITY)) |
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{ |
359 | 0 | to.setJMSPriority(from.getJMSPriority()); |
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} |
361 | 0 | if (connector.supportsProperty(JmsConstants.JMS_REDELIVERED)) |
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{ |
363 | 0 | to.setJMSRedelivered(from.getJMSRedelivered()); |
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} |
365 | 0 | if (connector.supportsProperty(JmsConstants.JMS_REPLY_TO)) |
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{ |
367 | 0 | to.setJMSReplyTo(from.getJMSReplyTo()); |
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} |
369 | 0 | if (connector.supportsProperty(JmsConstants.JMS_TIMESTAMP)) |
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{ |
371 | 0 | to.setJMSTimestamp(from.getJMSTimestamp()); |
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} |
373 | 0 | if (connector.supportsProperty(JmsConstants.JMS_TYPE)) |
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{ |
375 | 0 | to.setJMSType(from.getJMSType()); |
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} |
377 | 0 | return to; |
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} |
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|
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} |