/**
* Evaluates expressions in a given string. This method will iterate through each expression and
* evaluate it. If a user needs to evaluate a single expression they can use {@link
* org.mule.api.expression.ExpressionManager#evaluate(String,org.mule.api.MuleMessage,boolean)}.
*
* @param expression a single expression i.e. xpath://foo
* @param message the current message to process. The expression will evaluata on the message.
* @param failIfNull determines if an exception should be thrown if expression could not be
* evaluated or returns null.
* @return the result of the evaluation. Expressions that return collection will return an empty
* collection, not null.
* @throws ExpressionRuntimeException if the expression is invalid, or a null is found for the
* expression and 'failIfNull is set to true.
*/
public String parse(final String expression, final MuleMessage message, final boolean failIfNull)
throws ExpressionRuntimeException {
return parser.parse(
new TemplateParser.TemplateCallback() {
public Object match(String token) {
return evaluate(token, message, failIfNull);
}
},
expression);
}
protected String getFilename(
final MuleMessage message, String expression, TemplateParser parser) {
return parser.parse(
new TemplateParser.TemplateCallback() {
public Object match(String token) {
return muleContext.getExpressionManager().evaluate(token, message);
}
},
expression);
}
/**
* Determines if the expression is valid or not. This method will validate a single expression or
* expressions embedded in a string. the expression must be well formed i.e. #[bean:user]
*
* @param expression the expression to validate
* @return true if the expression evaluator is recognised
*/
public boolean isValidExpression(String expression) {
final AtomicBoolean valid = new AtomicBoolean(true);
final AtomicBoolean match = new AtomicBoolean(false);
final StringBuffer message = new StringBuffer();
parser.parse(
new TemplateParser.TemplateCallback() {
public Object match(String token) {
match.set(true);
if (token.indexOf(":") == -1) {
if (valid.get()) {
valid.compareAndSet(true, false);
}
message.append(token).append(" is malformed\n");
}
return null;
}
},
expression);
if (message.length() > 0) {
logger.warn("Expression " + expression + " is malformed: " + message.toString());
}
return match.get() && valid.get();
}
/*
* (non-Javadoc)
*
* @see org.mule.transformers.AbstractTransformer#doTransform(java.lang.Object)
*/
public Object transform(Object src, UMOEventContext context) throws TransformerException {
String endpointAddress = endpoint.getEndpointURI().getAddress();
SmtpConnector connector = (SmtpConnector) endpoint.getConnector();
String to = context.getStringProperty(MailProperties.TO_ADDRESSES_PROPERTY, endpointAddress);
String cc =
context.getStringProperty(MailProperties.CC_ADDRESSES_PROPERTY, connector.getCcAddresses());
String bcc =
context.getStringProperty(
MailProperties.BCC_ADDRESSES_PROPERTY, connector.getBccAddresses());
String from =
context.getStringProperty(MailProperties.FROM_ADDRESS_PROPERTY, connector.getFromAddress());
String replyTo =
context.getStringProperty(
MailProperties.REPLY_TO_ADDRESSES_PROPERTY, connector.getReplyToAddresses());
String subject =
context.getStringProperty(MailProperties.SUBJECT_PROPERTY, connector.getSubject());
String contentType =
context.getStringProperty(MailProperties.CONTENT_TYPE_PROPERTY, connector.getContentType());
Properties headers = new Properties();
if (connector.getCustomHeaders() != null) headers.putAll(connector.getCustomHeaders());
Properties otherHeaders =
(Properties) context.getProperty(MailProperties.CUSTOM_HEADERS_MAP_PROPERTY);
if (otherHeaders != null) {
Map props = new HashMap(MuleManager.getInstance().getProperties());
props.putAll(context.getProperties());
headers.putAll(templateParser.parse(props, otherHeaders));
}
if (logger.isDebugEnabled()) {
StringBuffer buf = new StringBuffer();
buf.append("Constucting email using:\n");
buf.append("To: ").append(to);
buf.append("From: ").append(from);
buf.append("CC: ").append(cc);
buf.append("BCC: ").append(bcc);
buf.append("Subject: ").append(subject);
buf.append("ReplyTo: ").append(replyTo);
buf.append("Content type: ").append(contentType);
buf.append("Payload type: ").append(src.getClass().getName());
buf.append("Custom Headers: ").append(PropertiesHelper.propertiesToString(headers, false));
logger.debug(buf.toString());
}
try {
Message msg =
new MimeMessage(
(Session)
endpoint.getConnector().getDispatcher(endpointAddress).getDelegateSession());
msg.setRecipients(Message.RecipientType.TO, MailUtils.stringToInternetAddresses(to));
// sent date
msg.setSentDate(Calendar.getInstance().getTime());
if (from != null && !Utility.EMPTY_STRING.equals(from)) {
msg.setFrom(MailUtils.stringToInternetAddresses(from)[0]);
}
if (cc != null && !Utility.EMPTY_STRING.equals(cc)) {
msg.setRecipients(Message.RecipientType.CC, MailUtils.stringToInternetAddresses(cc));
}
if (bcc != null && !Utility.EMPTY_STRING.equals(bcc)) {
msg.setRecipients(Message.RecipientType.BCC, MailUtils.stringToInternetAddresses(bcc));
}
if (replyTo != null && !Utility.EMPTY_STRING.equals(replyTo)) {
msg.setReplyTo(MailUtils.stringToInternetAddresses(replyTo));
}
msg.setSubject(subject);
Map.Entry entry;
for (Iterator iterator = headers.entrySet().iterator(); iterator.hasNext(); ) {
entry = (Map.Entry) iterator.next();
msg.setHeader(entry.getKey().toString(), entry.getValue().toString());
}
setContent(src, msg, contentType, context);
return msg;
} catch (Exception e) {
throw new TransformerException(this, e);
}
}
/*
* (non-Javadoc)
*
* @see org.mule.transformers.AbstractEventAwareTransformer#transform(java.lang.Object,
* java.lang.String, org.mule.umo.UMOEventContext)
*/
public Object transform(Object src, String encoding, UMOEventContext context)
throws TransformerException {
String endpointAddress = endpoint.getEndpointURI().getAddress();
SmtpConnector connector = (SmtpConnector) endpoint.getConnector();
UMOMessage eventMsg = context.getMessage();
String to = eventMsg.getStringProperty(MailProperties.TO_ADDRESSES_PROPERTY, endpointAddress);
String cc =
eventMsg.getStringProperty(
MailProperties.CC_ADDRESSES_PROPERTY, connector.getCcAddresses());
String bcc =
eventMsg.getStringProperty(
MailProperties.BCC_ADDRESSES_PROPERTY, connector.getBccAddresses());
String from =
eventMsg.getStringProperty(
MailProperties.FROM_ADDRESS_PROPERTY, connector.getFromAddress());
String replyTo =
eventMsg.getStringProperty(
MailProperties.REPLY_TO_ADDRESSES_PROPERTY, connector.getReplyToAddresses());
String subject =
eventMsg.getStringProperty(MailProperties.SUBJECT_PROPERTY, connector.getSubject());
String contentType =
eventMsg.getStringProperty(
MailProperties.CONTENT_TYPE_PROPERTY, connector.getContentType());
Properties headers = new Properties();
Properties customHeaders = connector.getCustomHeaders();
if (customHeaders != null && !customHeaders.isEmpty()) {
headers.putAll(customHeaders);
}
Properties otherHeaders =
(Properties) eventMsg.getProperty(MailProperties.CUSTOM_HEADERS_MAP_PROPERTY);
if (otherHeaders != null && !otherHeaders.isEmpty()) {
Map props = new HashMap(MuleManager.getInstance().getProperties());
for (Iterator iterator = eventMsg.getPropertyNames().iterator(); iterator.hasNext(); ) {
String propertyKey = (String) iterator.next();
props.put(propertyKey, eventMsg.getProperty(propertyKey));
}
headers.putAll(templateParser.parse(props, otherHeaders));
}
if (logger.isDebugEnabled()) {
StringBuffer buf = new StringBuffer(256);
buf.append("Constructing email using:\n");
buf.append("To: ").append(to);
buf.append("From: ").append(from);
buf.append("CC: ").append(cc);
buf.append("BCC: ").append(bcc);
buf.append("Subject: ").append(subject);
buf.append("ReplyTo: ").append(replyTo);
buf.append("Content type: ").append(contentType);
buf.append("Payload type: ").append(src.getClass().getName());
buf.append("Custom Headers: ").append(PropertiesUtils.propertiesToString(headers, false));
logger.debug(buf.toString());
}
try {
Message email =
new MimeMessage(
(Session) endpoint.getConnector().getDispatcher(endpoint).getDelegateSession());
// set mail details
email.setRecipients(Message.RecipientType.TO, MailUtils.stringToInternetAddresses(to));
email.setSentDate(Calendar.getInstance().getTime());
if (StringUtils.isNotBlank(from)) {
email.setFrom(MailUtils.stringToInternetAddresses(from)[0]);
}
if (StringUtils.isNotBlank(cc)) {
email.setRecipients(Message.RecipientType.CC, MailUtils.stringToInternetAddresses(cc));
}
if (StringUtils.isNotBlank(bcc)) {
email.setRecipients(Message.RecipientType.BCC, MailUtils.stringToInternetAddresses(bcc));
}
if (StringUtils.isNotBlank(replyTo)) {
email.setReplyTo(MailUtils.stringToInternetAddresses(replyTo));
}
email.setSubject(subject);
for (Iterator iterator = headers.entrySet().iterator(); iterator.hasNext(); ) {
Map.Entry entry = (Map.Entry) iterator.next();
email.setHeader(entry.getKey().toString(), entry.getValue().toString());
}
// Create Multipart to put BodyParts in
Multipart multipart = new MimeMultipart();
// Create Text Message
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText("My Text");
multipart.addBodyPart(messageBodyPart);
// Create Attachment
messageBodyPart = new MimeBodyPart();
DataHandler dataHandler = (DataHandler) src;
messageBodyPart.setDataHandler(dataHandler);
messageBodyPart.setFileName(dataHandler.getName());
multipart.addBodyPart(messageBodyPart);
email.setContent(multipart);
return email;
} catch (Exception e) {
throw new TransformerException(this, e);
}
}