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/*
* Copyright 2003,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LOG4CXX_NET_SMTP_H
#define _LOG4CXX_NET_SMTP_H
#include <log4cxx/config.h>
#ifdef HAVE_SMTP
#include <log4cxx/appenderskeleton.h>
#include <log4cxx/helpers/cyclicbuffer.h>
#include <log4cxx/spi/triggeringeventevaluator.h>
namespace log4cxx
{
namespace net
{
class SMTPAppender;
typedef helpers::ObjectPtrT<SMTPAppender> SMTPAppenderPtr;
/**
Send an e-mail when a specific logging event occurs, typically on
errors or fatal errors.
<p>The number of logging events delivered in this e-mail depend on
the value of <b>BufferSize</b> option. The
<code>SMTPAppender</code> keeps only the last
<code>BufferSize</code> logging events in its cyclic buffer. This
keeps memory requirements at a reasonable level while still
delivering useful application context.
*/
class LOG4CXX_EXPORT SMTPAppender : public AppenderSkeleton
{
private:
String to;
String from;
String subject;
String smtpHost;
int bufferSize; // 512
bool locationInfo;
helpers::CyclicBuffer cb;
void * session;
String encoding;
String charset;
protected:
spi::TriggeringEventEvaluatorPtr evaluator;
public:
DECLARE_LOG4CXX_OBJECT(SMTPAppender)
BEGIN_LOG4CXX_CAST_MAP()
LOG4CXX_CAST_ENTRY(SMTPAppender)
LOG4CXX_CAST_ENTRY_CHAIN(AppenderSkeleton)
END_LOG4CXX_CAST_MAP()
/**
The default constructor will instantiate the appender with a
spi::TriggeringEventEvaluator that will trigger on events with
level ERROR or higher.*/
SMTPAppender();
/**
Use <code>evaluator</code> passed as parameter as the
spi::TriggeringEventEvaluator for this net::SMTPAppender.
*/
SMTPAppender(spi::TriggeringEventEvaluatorPtr evaluator);
~SMTPAppender();
/**
Set options
*/
virtual void setOption(const String& option, const String& value);
/**
Activate the specified options, such as the smtp host, the
recipient, from, etc.
*/
virtual void activateOptions();
/**
Perform SMTPAppender specific appending actions, mainly adding
the event to a cyclic buffer and checking if the event triggers
an e-mail to be sent. */
virtual void append(const spi::LoggingEventPtr& event);
/**
This method determines if there is a sense in attempting to append.
<p>It checks whether there is a set output target and also if
there is a set layout. If these checks fail, then the boolean
value <code>false</code> is returned. */
bool checkEntryConditions();
virtual void close();
std::vector<String> parseAddress(const String& addressStr);
/**
Returns value of the <b>To</b> option.
*/
inline const String& getTo() const
{ return to; }
/**
The <code>SMTPAppender</code> requires a {@link
Layout layout}. */
virtual bool requiresLayout() const
{ return true; }
/**
Send the contents of the cyclic buffer as an e-mail message.
*/
void sendBuffer();
/**
Returns value of the <b>Charset</b> option.
*/
inline const String& getCharset() const
{ return charset; }
/**
Returns value of the <b>Encoding</b> option.
*/
inline const String& getEncoding() const
{ return encoding; }
/**
Returns value of the <b>EvaluatorClass</b> option.
*/
String getEvaluatorClass();
/**
Returns value of the <b>From</b> option.
*/
inline const String& getFrom() const
{ return from; }
/**
Returns value of the <b>Subject</b> option.
*/
inline const String& getSubject() const
{ return subject; }
/**
The <b>Charset</b> option takes a string value which should be the
charset of the mail (<code>us-ascii</code>, <code>iso8859_1</code>,
<code>iso8859_2</code>, <code>iso8859_3</code>).
*/
inline void setCharset(const String& charset)
{ this->charset = charset; }
/**
The <b>Encoding</b> option takes a string value which should be the
encoding type of the mail (<code>7bit</code>, <code>8bit</code>,
<code>base64</code>, <code>binary</code>, <code>quoted</code>).
*/
inline void setEncoding(const String& charset)
{ this->encoding = encoding; }
/**
The <b>From</b> option takes a string value which should be a
e-mail address of the sender.
*/
inline void setFrom(const String& from)
{ this->from = from; }
/**
The <b>Subject</b> option takes a string value which should be a
the subject of the e-mail message.
*/
inline void setSubject(const String& subject)
{ this->subject = subject; }
/**
The <b>BufferSize</b> option takes a positive integer
representing the maximum number of logging events to collect in a
cyclic buffer. When the <code>BufferSize</code> is reached,
oldest events are deleted as new events are added to the
buffer. By default the size of the cyclic buffer is 512 events.
*/
void setBufferSize(int bufferSize);
/**
The <b>SMTPHost</b> option takes a string value which should be a
the host name of the SMTP server that will send the e-mail message.
*/
inline void setSMTPHost(const String& smtpHost)
{ this->smtpHost = smtpHost; }
/**
Returns value of the <b>SMTPHost</b> option.
*/
inline const String& getSMTPHost() const
{ return smtpHost; }
/**
The <b>To</b> option takes a string value which should be a
comma separated list of e-mail address of the recipients.
*/
inline void setTo(const String& to)
{ this->to = to; }
/**
Returns value of the <b>BufferSize</b> option.
*/
inline int getBufferSize() const
{ return bufferSize; }
/**
The <b>EvaluatorClass</b> option takes a string value
representing the name of the class implementing the
spi::TriggeringEventEvaluator interface. A corresponding object will
be instantiated and assigned as the triggering event evaluator
for the SMTPAppender.
*/
void setEvaluatorClass(const String& value);
/**
The <b>LocationInfo</b> option takes a boolean value. By
default, it is set to false which means there will be no effort
to extract the location information related to the event. As a
result, the layout that formats the events as they are sent out
in an e-mail is likely to place the wrong location information
(if present in the format).
<p>Location information extraction is comparatively very slow and
should be avoided unless performance is not a concern.
*/
inline void setLocationInfo(bool locationInfo)
{ this->locationInfo = locationInfo; }
/**
Returns value of the <b>LocationInfo</b> option.
*/
inline bool getLocationInfo() const
{ return locationInfo; }
}; // class SMTPAppender
class LOG4CXX_EXPORT DefaultEvaluator :
public virtual spi::TriggeringEventEvaluator,
public virtual helpers::ObjectImpl
{
public:
DECLARE_LOG4CXX_OBJECT(DefaultEvaluator)
BEGIN_LOG4CXX_CAST_MAP()
LOG4CXX_CAST_ENTRY(spi::TriggeringEventEvaluator)
END_LOG4CXX_CAST_MAP()
/**
Is this <code>event</code> the e-mail triggering event?
<p>This method returns <code>true</code>, if the event level
has ERROR level or higher. Otherwise it returns
<code>false</code>.
*/
virtual bool isTriggeringEvent(const spi::LoggingEventPtr& event);
}; // class DefaultEvaluator
} // namespace net
}; // namespace log4cxx
#endif // HAVE_SMTP
#endif // _LOG4CXX_NET_SMTP_H