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sandro.lab
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package eu.dnetlib.msro.notification;
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michele.ar
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import java.io.StringReader;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Properties;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.LinkedBlockingQueue;
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import javax.mail.*;
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import javax.mail.internet.InternetAddress;
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import javax.mail.internet.MimeMessage;
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import com.google.common.base.Splitter;
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import eu.dnetlib.enabling.locators.UniqueServiceLocator;
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import eu.dnetlib.msro.workflows.procs.WorkflowProcess;
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import eu.dnetlib.msro.workflows.procs.WorkflowProcess.Status;
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import eu.dnetlib.rmi.enabling.ISLookUpService;
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import org.antlr.stringtemplate.StringTemplate;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.dom4j.Document;
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import org.dom4j.io.SAXReader;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Required;
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public class EmailDispatcher {
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private static final Log log = LogFactory.getLog(EmailDispatcher.class);
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private final BlockingQueue<Message> queue = new LinkedBlockingQueue<Message>();
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private String from;
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private String fromName;
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private String cc;
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private String smtpHost;
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private int smtpPort = 587;
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private String smtpUser;
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private String smtpPassword;
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private String baseUrl;
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private String infrastructure;
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@Autowired
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private UniqueServiceLocator serviceLocator;
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public void sendMail(final String to, final String subject, final String message) {
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try {
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final Session session = Session.getInstance(obtainProperties(), obtainAuthenticator());
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final MimeMessage mimeMessage = new MimeMessage(session);
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mimeMessage.setFrom(new InternetAddress(this.from, this.fromName));
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mimeMessage.setSubject(subject);
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mimeMessage.setContent(message, "text/html; charset=utf-8");
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mimeMessage.setSentDate(new Date());
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mimeMessage.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
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if ((this.cc != null) && !this.cc.isEmpty()) {
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for (final String aCC : Splitter.on(",").omitEmptyStrings().trimResults().split(getCc())) {
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mimeMessage.addRecipient(Message.RecipientType.CC, new InternetAddress(aCC));
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}
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}
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this.queue.add(mimeMessage);
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log.info("Mail to " + to + " in queue");
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} catch (final Exception e) {
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log.error("Error sending mail", e);
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}
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}
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private String applyTemplate(final String template, final WorkflowProcess proc) {
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final StringTemplate st = new StringTemplate(template);
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st.setAttribute("proc", proc);
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st.setAttribute("baseUrl", this.baseUrl);
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st.setAttribute("infrastructure", this.infrastructure);
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return st.toString();
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}
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public void processMailQueue() {
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while (true) {
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final Message message = this.queue.poll();
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if (message == null) {
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return;
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} else {
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try {
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log.info("Sending mail...");
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Transport.send(message);
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log.info("...sent");
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} catch (final MessagingException e) {
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log.error("Error sending email", e);
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this.queue.add(message);
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return;
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}
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}
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}
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}
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public void sendMails(final WorkflowProcess proc) {
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final SAXReader reader = new SAXReader();
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final Map<String, Document> emailProfiles = new HashMap<>();
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try {
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this.serviceLocator
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.getService(ISLookUpService.class)
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.quickSearchProfile("for $x in collection('/db/DRIVER/WorkflowDSResources/WorkflowDSResourceType') " +
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"where $x//RESOURCE_IDENTIFIER/@value='" + proc.getProfileId() + "' " +
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"or $x//RESOURCE_IDENTIFIER/@value='" + proc.getParentProfileId() + "' " +
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"return $x//NOTIFICATIONS/EMAIL/concat(@condition , ' @@@ ', @messageProfileId, ' @@@ ', @address)")
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.forEach(s -> {
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final String[] arr = s.split("@@@");
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if (StringUtils.isNoneBlank(arr[0].trim())) {
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final NotificationCondition condition = NotificationCondition.valueOf(arr[0].trim());
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final String emailProfileId = arr[1].trim();
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final String to = arr[2].trim();
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if (condition == NotificationCondition.ALWAYS ||
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(condition == NotificationCondition.ONLY_FAILED && proc.getStatus() == Status.FAILURE) ||
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(condition == NotificationCondition.ONLY_SUCCESS && proc.getStatus() == Status.SUCCESS)) {
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try {
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if (!emailProfiles.containsKey(emailProfileId)) {
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final String profile = this.serviceLocator.getService(ISLookUpService.class).getResourceProfile(emailProfileId);
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final Document doc = reader.read(new StringReader(profile));
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emailProfiles.put(emailProfileId, doc);
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}
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final String subject = applyTemplate(emailProfiles.get(emailProfileId).valueOf("//SUBJECT_TEMPLATE").trim(), proc);
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final String message = applyTemplate(emailProfiles.get(emailProfileId).valueOf("//EMAIL_TEMPLATE").trim(), proc);
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sendMail(to, subject, message);
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} catch (final Exception e) {
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log.error("Error sending mail to " + to, e);
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}
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}
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}
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});
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} catch (final Throwable e) {
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log.error("Error generating sending mails for process: " + proc.getId(), e);
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}
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}
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private Properties obtainProperties() {
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final Properties props = new Properties();
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props.put("mail.transport.protocol", "smtp");
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props.put("mail.smtp.host", this.smtpHost);
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props.put("mail.smtp.port", this.smtpPort);
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props.put("mail.smtp.auth", Boolean.toString((this.smtpUser != null) && !this.smtpUser.isEmpty()));
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return props;
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}
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private Authenticator obtainAuthenticator() {
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if ((this.smtpUser == null) || this.smtpUser.isEmpty()) { return null; }
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return new Authenticator() {
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private final PasswordAuthentication authentication = new PasswordAuthentication(EmailDispatcher.this.smtpUser, EmailDispatcher.this.smtpPassword);
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@Override
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protected PasswordAuthentication getPasswordAuthentication() {
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return this.authentication;
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}
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};
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}
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public String getFrom() {
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return this.from;
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}
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@Required
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public void setFrom(final String from) {
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this.from = from;
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}
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public String getFromName() {
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return this.fromName;
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}
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@Required
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public void setFromName(final String fromName) {
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this.fromName = fromName;
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}
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public String getCc() {
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return this.cc;
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}
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@Required
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public void setCc(final String cc) {
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this.cc = cc;
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}
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public String getSmtpHost() {
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return this.smtpHost;
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}
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@Required
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public void setSmtpHost(final String smtpHost) {
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this.smtpHost = smtpHost;
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}
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public int getSmtpPort() {
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return this.smtpPort;
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}
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public void setSmtpPort(final int smtpPort) {
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this.smtpPort = smtpPort;
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}
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public String getSmtpUser() {
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return this.smtpUser;
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}
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public void setSmtpUser(final String smtpUser) {
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this.smtpUser = smtpUser;
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}
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public String getSmtpPassword() {
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return this.smtpPassword;
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}
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public void setSmtpPassword(final String smtpPassword) {
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this.smtpPassword = smtpPassword;
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}
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public String getBaseUrl() {
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return this.baseUrl;
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}
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@Required
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public void setBaseUrl(final String baseUrl) {
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this.baseUrl = baseUrl;
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}
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public String getInfrastructure() {
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return this.infrastructure;
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}
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@Required
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public void setInfrastructure(final String infrastructure) {
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this.infrastructure = infrastructure;
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}
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}
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