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package org.mule.transport.ftp; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleEvent; |
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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.MuleRuntimeException; |
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import org.mule.api.config.ThreadingProfile; |
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import org.mule.api.construct.FlowConstruct; |
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import org.mule.api.endpoint.EndpointURI; |
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import org.mule.api.endpoint.ImmutableEndpoint; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.endpoint.OutboundEndpoint; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.transport.ConnectorException; |
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import org.mule.api.transport.DispatchException; |
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import org.mule.api.transport.MessageReceiver; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.config.i18n.MessageFactory; |
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import org.mule.model.streaming.CallbackOutputStream; |
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import org.mule.transport.AbstractConnector; |
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import org.mule.transport.ConnectException; |
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import org.mule.transport.file.ExpressionFilenameParser; |
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import org.mule.transport.file.FilenameParser; |
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import org.mule.util.ClassUtils; |
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|
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.text.MessageFormat; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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|
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import org.apache.commons.net.ftp.FTPClient; |
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import org.apache.commons.net.ftp.FTPFile; |
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import org.apache.commons.pool.ObjectPool; |
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import org.apache.commons.pool.impl.GenericObjectPool; |
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|
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public class FtpConnector extends AbstractConnector |
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{ |
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|
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public static final String FTP = "ftp"; |
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|
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|
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public static final String PROPERTY_POLLING_FREQUENCY = "pollingFrequency"; |
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public static final int DEFAULT_POLLING_FREQUENCY = 1000; |
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public static final String PROPERTY_OUTPUT_PATTERN = "outputPattern"; |
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public static final String PROPERTY_PASSIVE_MODE = "passive"; |
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public static final String PROPERTY_BINARY_TRANSFER = "binary"; |
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|
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|
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public static final String PROPERTY_FILENAME = "filename"; |
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|
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|
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|
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|
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|
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|
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public static final String DEFAULT_FTP_CONNECTION_FACTORY_CLASS = "org.mule.transport.ftp.FtpConnectionFactory"; |
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|
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|
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|
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|
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private long pollingFrequency; |
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|
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private String outputPattern; |
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|
79 | 0 | private FilenameParser filenameParser = new ExpressionFilenameParser(); |
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|
81 | 0 | private boolean passive = true; |
82 | |
|
83 | 0 | private boolean binary = true; |
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|
85 | |
|
86 | 0 | private boolean streaming = false; |
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|
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private Map<String, ObjectPool> pools; |
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|
90 | 0 | private String connectionFactoryClass = DEFAULT_FTP_CONNECTION_FACTORY_CLASS; |
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|
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public FtpConnector(MuleContext context) |
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{ |
94 | 0 | super(context); |
95 | 0 | } |
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|
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public String getProtocol() |
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{ |
99 | 0 | return FTP; |
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} |
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|
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@Override |
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public MessageReceiver createReceiver(FlowConstruct flowConstruct, InboundEndpoint endpoint) throws Exception |
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{ |
105 | 0 | List args = getReceiverArguments(endpoint.getProperties()); |
106 | 0 | return serviceDescriptor.createMessageReceiver(this, flowConstruct, endpoint, args.toArray()); |
107 | |
} |
108 | |
|
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protected List getReceiverArguments(Map endpointProperties) |
110 | |
{ |
111 | 0 | List args = new ArrayList(); |
112 | |
|
113 | 0 | long polling = getPollingFrequency(); |
114 | 0 | if (endpointProperties != null) |
115 | |
{ |
116 | |
|
117 | 0 | String tempPolling = (String) endpointProperties.get(PROPERTY_POLLING_FREQUENCY); |
118 | 0 | if (tempPolling != null) |
119 | |
{ |
120 | 0 | polling = Long.parseLong(tempPolling); |
121 | |
} |
122 | |
} |
123 | 0 | if (polling <= 0) |
124 | |
{ |
125 | 0 | polling = DEFAULT_POLLING_FREQUENCY; |
126 | |
} |
127 | 0 | logger.debug("set polling frequency to " + polling); |
128 | 0 | args.add(polling); |
129 | |
|
130 | 0 | return args; |
131 | |
} |
132 | |
|
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|
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|
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|
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public long getPollingFrequency() |
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{ |
138 | 0 | return pollingFrequency; |
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} |
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|
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|
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|
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|
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public void setPollingFrequency(long pollingFrequency) |
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{ |
146 | 0 | this.pollingFrequency = pollingFrequency; |
147 | 0 | } |
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|
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|
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|
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|
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|
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|
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public String getConnectionFactoryClass() |
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{ |
156 | 0 | return connectionFactoryClass; |
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} |
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|
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|
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public void setConnectionFactoryClass(final String connectionFactoryClass) |
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{ |
167 | 0 | this.connectionFactoryClass = connectionFactoryClass; |
168 | 0 | } |
169 | |
|
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public FTPClient getFtp(EndpointURI uri) throws Exception |
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{ |
172 | 0 | if (logger.isDebugEnabled()) |
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{ |
174 | 0 | logger.debug(">>> retrieving client for " + uri); |
175 | |
} |
176 | 0 | return (FTPClient) getFtpPool(uri).borrowObject(); |
177 | |
} |
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|
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public void releaseFtp(EndpointURI uri, FTPClient client) throws Exception |
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{ |
181 | 0 | if (logger.isDebugEnabled()) |
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{ |
183 | 0 | logger.debug("<<< releasing client for " + uri); |
184 | |
} |
185 | 0 | if (dispatcherFactory.isCreateDispatcherPerRequest()) |
186 | |
{ |
187 | 0 | destroyFtp(uri, client); |
188 | |
} |
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else |
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{ |
191 | 0 | getFtpPool(uri).returnObject(client); |
192 | |
} |
193 | 0 | } |
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|
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public void destroyFtp(EndpointURI uri, FTPClient client) throws Exception |
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{ |
197 | 0 | if (logger.isDebugEnabled()) |
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{ |
199 | 0 | logger.debug("<<< destroying client for " + uri); |
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} |
201 | |
try |
202 | |
{ |
203 | 0 | getFtpPool(uri).invalidateObject(client); |
204 | |
} |
205 | 0 | catch (Exception e) |
206 | |
{ |
207 | |
|
208 | 0 | logger.debug(e.getMessage()); |
209 | 0 | } |
210 | 0 | } |
211 | |
|
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protected synchronized ObjectPool getFtpPool(EndpointURI uri) |
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{ |
214 | 0 | if (logger.isDebugEnabled()) |
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{ |
216 | 0 | logger.debug("=== get pool for " + uri); |
217 | |
} |
218 | 0 | String key = uri.getUser() + ":" + uri.getPassword() + "@" + uri.getHost() + ":" + uri.getPort(); |
219 | 0 | ObjectPool pool = pools.get(key); |
220 | 0 | if (pool == null) |
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{ |
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try |
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{ |
224 | 0 | FtpConnectionFactory connectionFactory = |
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(FtpConnectionFactory) ClassUtils.instanciateClass(getConnectionFactoryClass(), |
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new Object[] {uri}, getClass()); |
227 | 0 | GenericObjectPool genericPool = createPool(connectionFactory); |
228 | 0 | pools.put(key, genericPool); |
229 | 0 | pool = genericPool; |
230 | |
} |
231 | 0 | catch (Exception ex) |
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{ |
233 | 0 | throw new MuleRuntimeException( |
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MessageFactory.createStaticMessage("Hmm, couldn't instanciate FTP connection factory."), ex); |
235 | 0 | } |
236 | |
} |
237 | 0 | return pool; |
238 | |
} |
239 | |
|
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protected GenericObjectPool createPool(FtpConnectionFactory connectionFactory) |
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{ |
242 | 0 | GenericObjectPool genericPool = new GenericObjectPool(connectionFactory); |
243 | 0 | byte poolExhaustedAction = ThreadingProfile.DEFAULT_POOL_EXHAUST_ACTION; |
244 | |
|
245 | 0 | ThreadingProfile receiverThreadingProfile = this.getReceiverThreadingProfile(); |
246 | 0 | if (receiverThreadingProfile != null) |
247 | |
{ |
248 | 0 | int threadingProfilePoolExhaustedAction = receiverThreadingProfile.getPoolExhaustedAction(); |
249 | 0 | if (threadingProfilePoolExhaustedAction == ThreadingProfile.WHEN_EXHAUSTED_WAIT) |
250 | |
{ |
251 | 0 | poolExhaustedAction = GenericObjectPool.WHEN_EXHAUSTED_BLOCK; |
252 | |
} |
253 | 0 | else if (threadingProfilePoolExhaustedAction == ThreadingProfile.WHEN_EXHAUSTED_ABORT) |
254 | |
{ |
255 | 0 | poolExhaustedAction = GenericObjectPool.WHEN_EXHAUSTED_FAIL; |
256 | |
} |
257 | 0 | else if (threadingProfilePoolExhaustedAction == ThreadingProfile.WHEN_EXHAUSTED_RUN) |
258 | |
{ |
259 | 0 | poolExhaustedAction = GenericObjectPool.WHEN_EXHAUSTED_GROW; |
260 | |
} |
261 | |
} |
262 | |
|
263 | 0 | genericPool.setWhenExhaustedAction(poolExhaustedAction); |
264 | 0 | genericPool.setTestOnBorrow(isValidateConnections()); |
265 | 0 | return genericPool; |
266 | |
} |
267 | |
|
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@Override |
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protected void doInitialise() throws InitialisationException |
270 | |
{ |
271 | 0 | if (filenameParser != null) |
272 | |
{ |
273 | 0 | filenameParser.setMuleContext(muleContext); |
274 | |
} |
275 | |
|
276 | |
try |
277 | |
{ |
278 | 0 | Class objectFactoryClass = ClassUtils.loadClass(this.connectionFactoryClass, getClass()); |
279 | 0 | if (!FtpConnectionFactory.class.isAssignableFrom(objectFactoryClass)) |
280 | |
{ |
281 | 0 | throw new InitialisationException(MessageFactory.createStaticMessage( |
282 | |
"FTP connectionFactoryClass is not an instance of org.mule.transport.ftp.FtpConnectionFactory"), |
283 | |
this); |
284 | |
} |
285 | |
} |
286 | 0 | catch (ClassNotFoundException e) |
287 | |
{ |
288 | 0 | throw new InitialisationException(e, this); |
289 | 0 | } |
290 | |
|
291 | 0 | pools = new HashMap<String, ObjectPool>(); |
292 | 0 | } |
293 | |
|
294 | |
@Override |
295 | |
protected void doDispose() |
296 | |
{ |
297 | |
|
298 | 0 | } |
299 | |
|
300 | |
@Override |
301 | |
protected void doConnect() throws Exception |
302 | |
{ |
303 | |
|
304 | 0 | } |
305 | |
|
306 | |
@Override |
307 | |
protected void doDisconnect() throws Exception |
308 | |
{ |
309 | |
|
310 | 0 | } |
311 | |
|
312 | |
@Override |
313 | |
protected void doStart() throws MuleException |
314 | |
{ |
315 | |
|
316 | 0 | } |
317 | |
|
318 | |
@Override |
319 | |
protected void doStop() throws MuleException |
320 | |
{ |
321 | 0 | if (logger.isDebugEnabled()) |
322 | |
{ |
323 | 0 | logger.debug("Stopping all pools"); |
324 | |
} |
325 | |
try |
326 | |
{ |
327 | 0 | for (ObjectPool pool : pools.values()) |
328 | |
{ |
329 | 0 | pool.close(); |
330 | |
} |
331 | |
} |
332 | 0 | catch (Exception e) |
333 | |
{ |
334 | 0 | throw new ConnectorException(CoreMessages.failedToStop("FTP Connector"), this, e); |
335 | |
} |
336 | |
finally |
337 | |
{ |
338 | 0 | pools.clear(); |
339 | 0 | } |
340 | 0 | } |
341 | |
|
342 | |
|
343 | |
|
344 | |
|
345 | |
public String getOutputPattern() |
346 | |
{ |
347 | 0 | return outputPattern; |
348 | |
} |
349 | |
|
350 | |
|
351 | |
|
352 | |
|
353 | |
public void setOutputPattern(String outputPattern) |
354 | |
{ |
355 | 0 | this.outputPattern = outputPattern; |
356 | 0 | } |
357 | |
|
358 | |
|
359 | |
|
360 | |
|
361 | |
public FilenameParser getFilenameParser() |
362 | |
{ |
363 | 0 | return filenameParser; |
364 | |
} |
365 | |
|
366 | |
|
367 | |
|
368 | |
|
369 | |
public void setFilenameParser(FilenameParser filenameParser) |
370 | |
{ |
371 | 0 | this.filenameParser = filenameParser; |
372 | 0 | if (filenameParser != null) |
373 | |
{ |
374 | 0 | filenameParser.setMuleContext(muleContext); |
375 | |
} |
376 | 0 | } |
377 | |
|
378 | |
|
379 | |
|
380 | |
|
381 | |
|
382 | |
|
383 | |
public boolean isPassive() |
384 | |
{ |
385 | 0 | return passive; |
386 | |
} |
387 | |
|
388 | |
|
389 | |
|
390 | |
|
391 | |
|
392 | |
|
393 | |
public void setPassive(final boolean passive) |
394 | |
{ |
395 | 0 | this.passive = passive; |
396 | 0 | } |
397 | |
|
398 | |
|
399 | |
|
400 | |
|
401 | |
|
402 | |
|
403 | |
|
404 | |
|
405 | |
public void enterActiveOrPassiveMode(FTPClient client, ImmutableEndpoint endpoint) |
406 | |
{ |
407 | |
|
408 | |
|
409 | 0 | final String passiveString = (String)endpoint.getProperty(FtpConnector.PROPERTY_PASSIVE_MODE); |
410 | 0 | if (passiveString == null) |
411 | |
{ |
412 | |
|
413 | 0 | if (isPassive()) |
414 | |
{ |
415 | 0 | if (logger.isTraceEnabled()) |
416 | |
{ |
417 | 0 | logger.trace("Entering FTP passive mode"); |
418 | |
} |
419 | 0 | client.enterLocalPassiveMode(); |
420 | |
} |
421 | |
else |
422 | |
{ |
423 | 0 | if (logger.isTraceEnabled()) |
424 | |
{ |
425 | 0 | logger.trace("Entering FTP active mode"); |
426 | |
} |
427 | 0 | client.enterLocalActiveMode(); |
428 | |
} |
429 | |
} |
430 | |
else |
431 | |
{ |
432 | |
|
433 | 0 | final boolean passiveMode = Boolean.valueOf(passiveString).booleanValue(); |
434 | 0 | if (passiveMode) |
435 | |
{ |
436 | 0 | if (logger.isTraceEnabled()) |
437 | |
{ |
438 | 0 | logger.trace("Entering FTP passive mode (endpoint override)"); |
439 | |
} |
440 | 0 | client.enterLocalPassiveMode(); |
441 | |
} |
442 | |
else |
443 | |
{ |
444 | 0 | if (logger.isTraceEnabled()) |
445 | |
{ |
446 | 0 | logger.trace("Entering FTP active mode (endpoint override)"); |
447 | |
} |
448 | 0 | client.enterLocalActiveMode(); |
449 | |
} |
450 | |
} |
451 | 0 | } |
452 | |
|
453 | |
|
454 | |
|
455 | |
|
456 | |
|
457 | |
|
458 | |
public boolean isBinary() |
459 | |
{ |
460 | 0 | return binary; |
461 | |
} |
462 | |
|
463 | |
|
464 | |
|
465 | |
|
466 | |
|
467 | |
|
468 | |
public void setBinary(final boolean binary) |
469 | |
{ |
470 | 0 | this.binary = binary; |
471 | 0 | } |
472 | |
|
473 | |
|
474 | |
|
475 | |
|
476 | |
|
477 | |
|
478 | |
|
479 | |
|
480 | |
public void setupFileType(FTPClient client, ImmutableEndpoint endpoint) throws Exception |
481 | |
{ |
482 | |
int type; |
483 | |
|
484 | |
|
485 | |
|
486 | 0 | final String binaryTransferString = (String)endpoint.getProperty(FtpConnector.PROPERTY_BINARY_TRANSFER); |
487 | 0 | if (binaryTransferString == null) |
488 | |
{ |
489 | |
|
490 | 0 | if (isBinary()) |
491 | |
{ |
492 | 0 | if (logger.isTraceEnabled()) |
493 | |
{ |
494 | 0 | logger.trace("Using FTP BINARY type"); |
495 | |
} |
496 | 0 | type = org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE; |
497 | |
} |
498 | |
else |
499 | |
{ |
500 | 0 | if (logger.isTraceEnabled()) |
501 | |
{ |
502 | 0 | logger.trace("Using FTP ASCII type"); |
503 | |
} |
504 | 0 | type = org.apache.commons.net.ftp.FTP.ASCII_FILE_TYPE; |
505 | |
} |
506 | |
} |
507 | |
else |
508 | |
{ |
509 | |
|
510 | 0 | final boolean binaryTransfer = Boolean.valueOf(binaryTransferString).booleanValue(); |
511 | 0 | if (binaryTransfer) |
512 | |
{ |
513 | 0 | if (logger.isTraceEnabled()) |
514 | |
{ |
515 | 0 | logger.trace("Using FTP BINARY type (endpoint override)"); |
516 | |
} |
517 | 0 | type = org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE; |
518 | |
} |
519 | |
else |
520 | |
{ |
521 | 0 | if (logger.isTraceEnabled()) |
522 | |
{ |
523 | 0 | logger.trace("Using FTP ASCII type (endpoint override)"); |
524 | |
} |
525 | 0 | type = org.apache.commons.net.ftp.FTP.ASCII_FILE_TYPE; |
526 | |
} |
527 | |
} |
528 | |
|
529 | 0 | client.setFileType(type); |
530 | 0 | } |
531 | |
|
532 | |
|
533 | |
|
534 | |
|
535 | |
|
536 | |
|
537 | |
|
538 | |
|
539 | |
|
540 | |
|
541 | |
|
542 | |
public OutputStream getOutputStream(OutboundEndpoint endpoint, MuleEvent event) |
543 | |
throws MuleException |
544 | |
{ |
545 | |
try |
546 | |
{ |
547 | 0 | final EndpointURI uri = endpoint.getEndpointURI(); |
548 | 0 | String filename = getFilename(endpoint, event.getMessage()); |
549 | |
|
550 | |
final FTPClient client; |
551 | |
try |
552 | |
{ |
553 | 0 | client = this.createFtpClient(endpoint); |
554 | |
} |
555 | 0 | catch (Exception e) |
556 | |
{ |
557 | 0 | throw new ConnectException(e, this); |
558 | 0 | } |
559 | |
|
560 | |
try |
561 | |
{ |
562 | 0 | OutputStream out = client.storeFileStream(filename); |
563 | 0 | if (out == null) |
564 | |
{ |
565 | 0 | throw new IOException("FTP operation failed: " + client.getReplyString()); |
566 | |
} |
567 | |
|
568 | 0 | return new CallbackOutputStream(out, |
569 | |
new CallbackOutputStream.Callback() |
570 | 0 | { |
571 | |
public void onClose() throws Exception |
572 | |
{ |
573 | |
try |
574 | |
{ |
575 | 0 | if (!client.completePendingCommand()) |
576 | |
{ |
577 | 0 | client.logout(); |
578 | 0 | client.disconnect(); |
579 | 0 | throw new IOException("FTP Stream failed to complete pending request"); |
580 | |
} |
581 | |
} |
582 | |
finally |
583 | |
{ |
584 | 0 | releaseFtp(uri, client); |
585 | 0 | } |
586 | 0 | } |
587 | |
}); |
588 | |
} |
589 | 0 | catch (Exception e) |
590 | |
{ |
591 | 0 | logger.debug("Error getting output stream: ", e); |
592 | 0 | releaseFtp(uri, client); |
593 | 0 | throw e; |
594 | |
} |
595 | |
} |
596 | 0 | catch (ConnectException ce) |
597 | |
{ |
598 | |
|
599 | 0 | throw ce; |
600 | |
} |
601 | 0 | catch (Exception e) |
602 | |
{ |
603 | 0 | throw new DispatchException(CoreMessages.streamingFailedNoStream(), event, endpoint, e); |
604 | |
} |
605 | |
} |
606 | |
|
607 | |
private String getFilename(ImmutableEndpoint endpoint, MuleMessage message) throws IOException |
608 | |
{ |
609 | 0 | String filename = message.getOutboundProperty(FtpConnector.PROPERTY_FILENAME); |
610 | 0 | String outPattern = (String) endpoint.getProperty(FtpConnector.PROPERTY_OUTPUT_PATTERN); |
611 | 0 | if (outPattern == null) |
612 | |
{ |
613 | 0 | outPattern = message.getOutboundProperty(FtpConnector.PROPERTY_OUTPUT_PATTERN, getOutputPattern()); |
614 | |
} |
615 | 0 | if (outPattern != null || filename == null) |
616 | |
{ |
617 | 0 | filename = generateFilename(message, outPattern); |
618 | |
} |
619 | 0 | if (filename == null) |
620 | |
{ |
621 | 0 | throw new IOException("Filename is null"); |
622 | |
} |
623 | 0 | return filename; |
624 | |
} |
625 | |
|
626 | |
private String generateFilename(MuleMessage message, String pattern) |
627 | |
{ |
628 | 0 | if (pattern == null) |
629 | |
{ |
630 | 0 | pattern = getOutputPattern(); |
631 | |
} |
632 | 0 | return getFilenameParser().getFilename(message, pattern); |
633 | |
} |
634 | |
|
635 | |
|
636 | |
|
637 | |
|
638 | |
|
639 | |
protected FTPClient createFtpClient(ImmutableEndpoint endpoint) throws Exception |
640 | |
{ |
641 | 0 | EndpointURI uri = endpoint.getEndpointURI(); |
642 | 0 | FTPClient client = this.getFtp(uri); |
643 | |
|
644 | 0 | this.enterActiveOrPassiveMode(client, endpoint); |
645 | 0 | this.setupFileType(client, endpoint); |
646 | |
|
647 | 0 | String path = uri.getPath(); |
648 | |
|
649 | |
|
650 | 0 | if ((path.length() >= 2) && (path.charAt(1) == '~')) |
651 | |
{ |
652 | 0 | path = path.substring(1); |
653 | |
} |
654 | |
|
655 | 0 | if (!client.changeWorkingDirectory(path)) |
656 | |
{ |
657 | 0 | throw new IOException(MessageFormat.format("Failed to change working directory to {0}. Ftp error: {1}", |
658 | |
path, client.getReplyCode())); |
659 | |
} |
660 | 0 | return client; |
661 | |
} |
662 | |
|
663 | |
|
664 | |
|
665 | |
|
666 | |
protected boolean validateFile(FTPFile file) |
667 | |
{ |
668 | 0 | return true; |
669 | |
} |
670 | |
|
671 | |
public boolean isStreaming() |
672 | |
{ |
673 | 0 | return streaming; |
674 | |
} |
675 | |
|
676 | |
public void setStreaming(boolean streaming) |
677 | |
{ |
678 | 0 | this.streaming = streaming; |
679 | 0 | } |
680 | |
|
681 | |
} |