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package org.mule.transport.email; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.construct.FlowConstruct; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.lifecycle.CreateException; |
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import org.mule.api.transport.Connector; |
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import org.mule.api.transport.ReceiveException; |
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import org.mule.transport.AbstractPollingMessageReceiver; |
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import org.mule.transport.email.i18n.EmailMessages; |
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import org.mule.util.FileUtils; |
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import org.mule.util.StringUtils; |
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import org.mule.util.UUID; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.List; |
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import javax.mail.Address; |
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import javax.mail.Flags; |
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import javax.mail.Folder; |
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import javax.mail.Message; |
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import javax.mail.MessagingException; |
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import javax.mail.Store; |
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import javax.mail.event.MessageCountEvent; |
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import javax.mail.event.MessageCountListener; |
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import javax.mail.internet.InternetAddress; |
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import javax.mail.internet.MimeMessage; |
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public class RetrieveMessageReceiver extends AbstractPollingMessageReceiver implements MessageCountListener |
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{ |
48 | 0 | private Folder folder = null; |
49 | 0 | private Folder moveToFolder = null; |
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private boolean backupEnabled; |
51 | 0 | private String backupFolder = null; |
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|
53 | 0 | private final Object folderLock = new Object(); |
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|
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public RetrieveMessageReceiver(Connector connector, |
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FlowConstruct flowConstruct, |
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InboundEndpoint endpoint, |
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long checkFrequency, |
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boolean backupEnabled, |
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String backupFolder) throws CreateException |
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{ |
62 | 0 | super(connector, flowConstruct, endpoint); |
63 | 0 | this.backupFolder = backupFolder; |
64 | 0 | this.backupEnabled = backupEnabled; |
65 | 0 | this.setFrequency(checkFrequency); |
66 | 0 | } |
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|
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private AbstractRetrieveMailConnector castConnector() |
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{ |
70 | 0 | return (AbstractRetrieveMailConnector) getConnector(); |
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} |
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|
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@Override |
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protected void doConnect() throws Exception |
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{ |
76 | 0 | SessionDetails session = castConnector().getSessionDetails(endpoint); |
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|
78 | 0 | Store store = session.newStore(); |
79 | 0 | store.connect(); |
80 | 0 | folder = store.getFolder(castConnector().getMailboxFolder()); |
81 | 0 | if (castConnector().getMoveToFolder() != null) |
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{ |
83 | 0 | moveToFolder = store.getFolder(castConnector().getMoveToFolder()); |
84 | 0 | moveToFolder.open(Folder.READ_WRITE); |
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} |
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|
88 | 0 | if (StringUtils.isEmpty(backupFolder)) |
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{ |
90 | 0 | this.backupFolder = connector.getMuleContext().getConfiguration().getWorkingDirectory() |
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+ "/mail/" + folder.getName(); |
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} |
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|
94 | 0 | if (backupFolder != null && !this.backupFolder.endsWith(File.separator)) |
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{ |
96 | 0 | this.backupFolder += File.separator; |
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} |
98 | 0 | } |
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|
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@Override |
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protected void doDisconnect() throws Exception |
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{ |
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|
104 | 0 | } |
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@Override |
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protected void doStop() |
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{ |
109 | 0 | synchronized (folderLock) |
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{ |
111 | 0 | if (folder != null) |
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{ |
113 | 0 | folder.removeMessageCountListener(this); |
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} |
115 | 0 | } |
116 | 0 | } |
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|
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@Override |
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protected void doStart() throws MuleException |
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{ |
121 | 0 | super.doStart(); |
122 | 0 | synchronized (folderLock) |
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{ |
124 | 0 | folder.addMessageCountListener(this); |
125 | 0 | } |
126 | 0 | } |
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|
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public void messagesAdded(MessageCountEvent event) |
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{ |
130 | 0 | Message messages[] = event.getMessages(); |
131 | 0 | List<Message> processedMessages = new ArrayList<Message>(); |
132 | 0 | if (messages != null) |
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{ |
134 | 0 | MuleMessage message = null; |
135 | 0 | for (int i = 0; i < messages.length; i++) |
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{ |
137 | 0 | if (getLifecycleState().isStopping() || getLifecycleState().isStopped()) |
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{ |
139 | 0 | break; |
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} |
141 | 0 | processedMessages.add(messages[i]); |
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try |
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{ |
144 | 0 | if (!messages[i].getFlags().contains(Flags.Flag.DELETED) |
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&& !messages[i].getFlags().contains(Flags.Flag.SEEN)) |
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{ |
147 | 0 | MimeMessage mimeMessage = new MimeMessage((MimeMessage) messages[i]); |
148 | 0 | storeMessage(mimeMessage); |
149 | 0 | message = createMuleMessage(mimeMessage, endpoint.getEncoding()); |
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|
151 | 0 | if (castConnector().isDeleteReadMessages()) |
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{ |
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|
154 | 0 | messages[i].setFlag(Flags.Flag.DELETED, true); |
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} |
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else |
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{ |
158 | 0 | if (this.getEndpoint().getFilter() != null && this.getEndpoint().getFilter().accept(message)) |
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{ |
160 | 0 | Flags.Flag flag = castConnector().getDefaultProcessMessageAction(); |
161 | 0 | if (flag != null) |
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{ |
163 | 0 | messages[i].setFlag(flag, true); |
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} |
165 | 0 | } |
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else |
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{ |
168 | 0 | messages[i].setFlag(Flags.Flag.SEEN, false); |
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} |
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} |
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|
172 | 0 | routeMessage(message); |
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} |
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} |
175 | 0 | catch (MuleException e) |
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{ |
177 | 0 | getConnector().getMuleContext().getExceptionListener().handleException(e); |
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} |
179 | 0 | catch (Exception e) |
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{ |
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Exception forwarded; |
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|
183 | 0 | if (message != null) |
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{ |
185 | 0 | forwarded = new org.mule.api.MessagingException(EmailMessages.routingError(), message, e); |
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} |
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else |
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{ |
189 | 0 | forwarded = new ReceiveException(endpoint, -1, e); |
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} |
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|
192 | 0 | getConnector().getMuleContext().getExceptionListener().handleException(forwarded); |
193 | 0 | } |
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} |
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|
196 | 0 | if (moveToFolder != null) |
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{ |
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try |
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{ |
200 | 0 | folder.copyMessages(processedMessages.toArray(new Message[processedMessages.size()]), moveToFolder); |
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} |
202 | 0 | catch (MessagingException e) |
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{ |
204 | 0 | getConnector().getMuleContext().getExceptionListener().handleException(e); |
205 | 0 | } |
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} |
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} |
208 | 0 | } |
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|
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public void messagesRemoved(MessageCountEvent event) |
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{ |
212 | 0 | if (logger.isDebugEnabled()) |
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{ |
214 | 0 | Message messages[] = event.getMessages(); |
215 | 0 | for (int i = 0; i < messages.length; i++) |
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{ |
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try |
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{ |
219 | 0 | logger.debug("Message removed: " + messages[i].getSubject()); |
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} |
221 | 0 | catch (MessagingException ignore) |
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{ |
223 | 0 | logger.debug("ignoring exception: " + ignore.getMessage()); |
224 | 0 | } |
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} |
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} |
227 | 0 | } |
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public Folder getFolder() |
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{ |
232 | 0 | return folder; |
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} |
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public void setFolder(Folder folder) |
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{ |
238 | 0 | synchronized (folderLock) |
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{ |
240 | 0 | if (folder == null) |
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{ |
242 | 0 | throw new IllegalArgumentException("Mail folder cannot be null"); |
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} |
244 | 0 | this.folder = folder; |
245 | 0 | if (!this.folder.isOpen()) |
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{ |
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try |
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{ |
249 | 0 | this.folder.open(Folder.READ_WRITE); |
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} |
251 | 0 | catch (MessagingException e) |
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{ |
253 | 0 | logger.warn("Failed to open folder: " + folder.getFullName(), e); |
254 | 0 | } |
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} |
256 | 0 | } |
257 | 0 | } |
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protected void storeMessage(Message msg) throws IOException, MessagingException |
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{ |
271 | 0 | if (backupEnabled) |
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{ |
273 | 0 | String filename = msg.getFileName(); |
274 | 0 | if (filename == null) |
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{ |
276 | 0 | Address[] from = msg.getFrom(); |
277 | 0 | if (from != null && from.length > 0) |
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{ |
279 | 0 | filename = from[0] instanceof InternetAddress |
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? ((InternetAddress) from[0]).getAddress() |
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: from[0].toString(); |
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} |
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else |
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{ |
285 | 0 | filename = "(no from address)"; |
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} |
287 | 0 | filename += "[" + UUID.getUUID() + "]"; |
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} |
289 | 0 | filename = FileUtils.prepareWinFilename(filename); |
290 | 0 | filename = backupFolder + filename + ".msg"; |
291 | 0 | if (logger.isDebugEnabled()) |
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{ |
293 | 0 | logger.debug("Writing message to: " + filename); |
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} |
295 | 0 | File f = FileUtils.createFile(filename); |
296 | 0 | FileOutputStream fos = new FileOutputStream(f); |
297 | 0 | msg.writeTo(fos); |
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} |
299 | 0 | } |
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|
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@Override |
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public void poll() |
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{ |
304 | 0 | synchronized (folderLock) |
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{ |
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try |
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{ |
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try |
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{ |
310 | 0 | if (!folder.isOpen()) |
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{ |
312 | 0 | folder.open(Folder.READ_WRITE); |
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} |
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} |
315 | 0 | catch (Exception e) |
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{ |
317 | 0 | if (logger.isDebugEnabled()) |
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{ |
319 | 0 | logger.debug("ignoring exception: " + e.getMessage()); |
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} |
321 | 0 | } |
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|
323 | 0 | int count = folder.getMessageCount(); |
324 | 0 | if (count > 0) |
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{ |
326 | 0 | Message[] messages = folder.getMessages(); |
327 | 0 | MessageCountEvent event = new MessageCountEvent(folder, MessageCountEvent.ADDED, true, |
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messages); |
329 | 0 | messagesAdded(event); |
330 | 0 | } |
331 | 0 | else if (count == -1) |
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{ |
333 | 0 | throw new MessagingException("Cannot monitor folder: " + folder.getFullName() |
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+ " as folder is closed"); |
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} |
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} |
337 | 0 | catch (MessagingException e) |
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{ |
339 | 0 | getConnector().getMuleContext().getExceptionListener().handleException(e); |
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} |
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finally |
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{ |
343 | 0 | try |
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{ |
345 | 0 | folder.close(true); |
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} |
347 | 0 | catch (Exception e) |
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{ |
349 | 0 | logger.error("Failed to close pop3 inbox: " + e.getMessage()); |
350 | 0 | } |
351 | 0 | } |
352 | 0 | } |
353 | 0 | } |
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|
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@Override |
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protected void doDispose() |
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{ |
358 | 0 | synchronized (folderLock) |
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{ |
360 | 0 | if (null != folder) |
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{ |
362 | 0 | folder.removeMessageCountListener(this); |
363 | 0 | if (folder.isOpen()) |
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{ |
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try |
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{ |
367 | 0 | folder.close(true); |
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} |
369 | 0 | catch (Exception e) |
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{ |
371 | 0 | logger.debug("ignoring exception: " + e.getMessage(), e); |
372 | 0 | } |
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} |
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} |
375 | 0 | } |
376 | 0 | } |
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|
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@Override |
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protected MuleMessage handleUnacceptedFilter(MuleMessage message) |
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{ |
381 | 0 | super.handleUnacceptedFilter(message); |
382 | 0 | if (message.getPayload() instanceof Message) |
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{ |
384 | 0 | Message msg = (Message) message.getPayload(); |
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try |
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{ |
387 | 0 | msg.setFlag(Flags.Flag.DELETED, endpoint.isDeleteUnacceptedMessages()); |
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} |
389 | 0 | catch (MessagingException e) |
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{ |
391 | 0 | logger.error("failed to set message deleted: " + e.getMessage(), e); |
392 | 0 | } |
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} |
394 | 0 | return message; |
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} |
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} |