package org.ovirt.engine.core.notifier.utils.sender.mail;
import org.apache.commons.lang.StringUtils;
/**
* A helper class designed to construct message parts in static structure
*/
public class MessageHelper {
private static String USER_INFO = "User Name: %s\n";
private static String VM_INFO = "VM Name: %s\n";
private static String HOST_INFO = "Host Name: %s\n";
private static String TEMPLATE_INFO = "Template Name: %s\n";
private static String DATA_CENTER_INFO = "Data Center Name: %s\n";
private static String STORAGE_DOMAIN_INFO = "Storage Domain Name: %s\n";
private static String HTML_USER_INFO = "<b>User Name:</b> %s<br>";
private static String HTML_VM_INFO = "<b>VM Name:</b> %s<br>";
private static String HTML_HOST_INFO = "<b>Host Name:</b> %s<br>";
private static String HTML_TEMPLATE_INFO = "<b>Template Name:</b> %s<br>";
private static String HTML_DATA_CENTER_INFO = "<b>Data Center Name:</b> %s<br>";
private static String HTML_STORAGE_DOMAIN_INFO = "<b>Storage Domain Name:</b> %s<br>";
/**
* Describes a message type set by event type and associate message.
*/
static public enum MessageType {
resolveMessage(0, "Issue Solved Notification."),
alertMessage(1, "Alert Notification.");
private String message;
private int eventType;
private MessageType(int eventType, String message) {
this.message = message;
this.eventType = eventType;
}
public String getMessage() {
return message;
}
public int getEventType() {
return eventType;
}
static public String getMessageByEventType(int eventType) {
for (MessageHelper.MessageType m : values()) {
if (eventType == m.eventType) {
return m.message;
}
}
return null;
}
}
/**
* Constructs a formatted message body based on provided message body elements content.<br>
* If any of message body element is empty or missing, it will not appear in the formatted message body text
* @param messageBody
* the message body values for populate a formatted message body
* @return a formatted message body
*/
public static String prepareMessageBody(MessageBody messageBody) {
StringBuilder sb = new StringBuilder();
sb.append(String.format("Time:%s\nMessage:%s\nSeverity:%s\n",
messageBody.getLogTime(),
messageBody.getMessage(),
messageBody.getSeverity()));
if (StringUtils.isNotEmpty(messageBody.getUserInfo())) {
sb.append(String.format(USER_INFO, messageBody.getUserInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getVmInfo())) {
sb.append(String.format(VM_INFO, messageBody.getVmInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getHostInfo())) {
sb.append(String.format(HOST_INFO, messageBody.getHostInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getTemplateInfo())) {
sb.append(String.format(TEMPLATE_INFO, messageBody.getTemplateInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getDatacenterInfo())) {
sb.append(String.format(DATA_CENTER_INFO, messageBody.getDatacenterInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getStorageDomainInfo())) {
sb.append(String.format(STORAGE_DOMAIN_INFO, messageBody.getStorageDomainInfo()));
}
return sb.toString();
}
/**
* Construct a formatted message based on predefined template:<br>
* {@code "Issue Solved"/"Alert Notification" (host name), [message details]}
* @param eventType
* determines the prefix of the subject
* @param hostName
* the machine names associated with this event
* @param message
* the content of the message to convey
* @return a formatted message subject
*/
public static String prepareMessageSubject(int eventType, String hostName, String message) {
return String.format("%s (%s), [%s]", MessageType.getMessageByEventType(eventType), hostName, message);
}
/**
* Constructs a formatted message body based on provided message body elements content in HTML format.<br>
* If any of message body element is empty or missing, it will not appear in the formatted message body text
* @param messageBody
* the message body values for populate a formatted message body
* @return a formatted HTML message body
*/
public static String prepareHTMLMessageBody(MessageBody messageBody) {
StringBuilder sb = new StringBuilder();
sb.append(String.format("<b>Time:</b> %s<br><b>Message:</b> %s<br><b>Severity:</b> %s<p>",
messageBody.getLogTime(),
messageBody.getMessage(),
messageBody.getSeverity()));
if (StringUtils.isNotEmpty(messageBody.getUserInfo())) {
sb.append(String.format(HTML_USER_INFO, messageBody.getUserInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getVmInfo())) {
sb.append(String.format(HTML_VM_INFO, messageBody.getVmInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getHostInfo())) {
sb.append(String.format(HTML_HOST_INFO, messageBody.getHostInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getTemplateInfo())) {
sb.append(String.format(HTML_TEMPLATE_INFO, messageBody.getTemplateInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getDatacenterInfo())) {
sb.append(String.format(HTML_DATA_CENTER_INFO, messageBody.getDatacenterInfo()));
}
if (StringUtils.isNotEmpty(messageBody.getStorageDomainInfo())) {
sb.append(String.format(HTML_STORAGE_DOMAIN_INFO, messageBody.getStorageDomainInfo()));
}
return sb.toString();
}
}