work in progress

pom.xml

@@ -82,6 +82,18 @@
 			<artifactId>spring-boot-starter-mail</artifactId>
 		</dependency>
 
+		<!-- handlebars -->
+		<dependency>
+		    <groupId>com.github.jknack</groupId>
+		    <artifactId>handlebars</artifactId>
+		    <version>4.1.2</version>
+		</dependency>
+		<dependency>
+		    <groupId>com.github.jknack</groupId>
+		    <artifactId>handlebars-helpers</artifactId>
+		    <version>4.1.2</version>
+		</dependency>
+
 
 		<dependency>
 			<groupId>commons-httpclient</groupId>

sql/init.sql

@@ -107,6 +107,7 @@ CREATE TABLE RESET_PASSWORD_TOKEN (
 );
 CREATE INDEX RESET_PASSWORD_TOKEN_LOGIN_IDX ON RESET_PASSWORD_TOKEN(LOGIN);
 
+-- EMAILS
 
 CREATE TABLE EMAIL (
 	ID INT8 NOT NULL,
@@ -167,3 +168,39 @@ CREATE TABLE EMAIL_ATTACHMENT (
 );
 
 CREATE INDEX EMAIL_ATTACHMENT_IDX ON EMAIL_ATTACHMENT(EMAIL_ID);
+
+
+-- CUSTOMIZABLE TEMPLATES
+CREATE TABLE CUSTOMIZABLE_TEMPLATE (
+	ID INT8 NOT NULL,
+	CODE VARCHAR(250),
+	NAME VARCHAR(100),
+	
+	TEMPLATE TEXT,
+	
+	CONSTRAINT PK_CUSTOMIZABLE_TEMPLATE PRIMARY KEY(ID)
+);
+
+CREATE INDEX CUSTOMIZABLE_TEMPLATE_CODE_IDX ON CUSTOMIZABLE_TEMPLATE(CODE);
+
+
+CREATE TABLE CUSTOMIZABLE_TEMPLATE_LABEL (
+	ID INT8 NOT NULL,
+	TEMPLATE_ID INT8 NOT NULL,
+	UNIT_ID INT8,
+
+	CODE VARCHAR(1000) NOT NULL,
+	LANG VARCHAR(10),
+	
+	LABEL VARCHAR,
+	
+	POSITION NUMERIC(19,0),
+	
+	CONSTRAINT PK_CUSTOMIZABLE_TEMPLATE_LABEL PRIMARY KEY(ID),
+	CONSTRAINT FK_CUSTOMIZABLE_TEMPLATE_LABEL_TEMPLATE FOREIGN KEY (TEMPLATE_ID) REFERENCES CUSTOMIZABLE_TEMPLATE(ID)
+);
+
+CREATE INDEX CUSTOMIZABLE_TEMPLATE_LABEL_TEMPLATE_IDX ON CUSTOMIZABLE_TEMPLATE_LABEL(TEMPLATE_ID);
+CREATE INDEX CUSTOMIZABLE_TEMPLATE_LABEL_UNIT_IDX ON CUSTOMIZABLE_TEMPLATE_LABEL(UNIT_ID);
+
+-- TODO
\ No newline at end of file

src/main/java/com/jh/common/email/Email.java

@@ -22,10 +22,6 @@ public class Email extends AbstractIdEntity {
 	@Column(name = "LOCKED")
 	private Boolean locked;
 	
-	/** The unit id. */
-	@Column(name = "UNIT_ID")
-	private Long unitId;
-	
 	/** The email from. */
 	@Column(name = "EMAIL_FROM")
 	private String emailFrom;
@@ -85,24 +81,6 @@ public class Email extends AbstractIdEntity {
 	}
 
 	/**
-	 * Gets the unit id.
-	 *
-	 * @return the unit id
-	 */
-	public Long getUnitId() {
-		return unitId;
-	}
-
-	/**
-	 * Sets the unit id.
-	 *
-	 * @param unitId the new unit id
-	 */
-	public void setUnitId(Long unitId) {
-		this.unitId = unitId;
-	}
-
-	/**
 	 * Gets the from.
 	 *
 	 * @return the from

src/main/java/com/jh/common/email/JhMailConfig.java

+package com.jh.common.email;
+
+import org.springframework.context.annotation.Bean;
+
+//TODO
+public class JhMailConfig {
+
+	@Bean
+	public EmailService emailService() {
+		return new LocalEmailService();
+	}
+	
+	
+	
+}

src/main/java/com/jh/common/email/LocalEmailService.java

@@ -147,7 +147,6 @@ public class LocalEmailService implements EmailService {
 				helper.setText(email.getHtml(), true);
 			}
 			
-			
 			if (email.getAttachments() != null) {	
 				for (EmailAttachment a : email.getAttachments()) {
 					if (a.getData() != null) {
@@ -164,7 +163,6 @@ public class LocalEmailService implements EmailService {
 			mailSender.send(msg);
 			email.setStatus("SENT");
 			
-			
 		} catch (Exception e) {
 			e.printStackTrace();
 			email.setStatus("FAILED");

src/main/java/com/jh/common/i18n/I18nContext.java

+package com.jh.common.i18n;
+
+
+
+/**
+ * The Interface I18nContext.
+ */
+public interface I18nContext {
+
+	/**
+	 * Gets the date format.
+	 *
+	 * @return the date format
+	 */
+	public String getDateFormat();
+	
+	/**
+	 * Gets the currency format.
+	 *
+	 * @return the currency format
+	 */
+	public String getCurrencyFormat();
+	
+	/**
+	 * Gets the thousand delimiter.
+	 *
+	 * @return the thousand delimiter
+	 */
+	public String getThousandDelimiter();
+	
+	/**
+	 * Gets the decimal delimiter.
+	 *
+	 * @return the decimal delimiter
+	 */
+	public String getDecimalDelimiter();
+	
+	/**
+	 * Gets the currency.
+	 *
+	 * @return the currency
+	 */
+	public String getCurrency();
+	
+	/**
+	 * Gets the currency symbol.
+	 *
+	 * @return the currency symbol
+	 */
+	public String getCurrencySymbol();
+}

src/main/java/com/jh/common/i18n/I18nUtils.java

+package com.jh.common.i18n;
+
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.text.NumberFormat;
+import java.text.SimpleDateFormat;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+
+/**
+ * TODO comment.
+ *
+ * @author jh
+ */
+public class I18nUtils {
+
+	/** The date formats. */
+	private Map<String, SimpleDateFormat> dateFormats;
+
+	/** The date formatters. */
+	private Map<String, DateTimeFormatter> dateFormatters;
+
+	/** The number formats. */
+	private Map<NumberFormatKey, NumberFormat> numberFormats;
+	
+	/** The instance. */
+	private static I18nUtils instance = new I18nUtils();
+	
+	private I18nContext defaultI18n = new I18nContext() {
+		
+		@Override
+		public String getThousandDelimiter() {
+			return ",";
+		}
+		
+		@Override
+		public String getDecimalDelimiter() {
+			return ".";
+		}
+		
+		@Override
+		public String getDateFormat() {
+			return "MM/DD/YYYY";
+		}
+		
+		@Override
+		public String getCurrencySymbol() {
+			return "$";
+		}
+		
+		@Override
+		public String getCurrencyFormat() {
+			return "left";
+		}
+		
+		@Override
+		public String getCurrency() {
+			return "USD";
+		}
+	};
+	
+	/**
+	 * Instantiates a new i 18 n utils.
+	 */
+	private I18nUtils() {
+		dateFormats = new HashMap<>();
+		numberFormats = new HashMap<>();
+		dateFormatters = new HashMap<>();
+	}
+
+	
+	/**
+	 * Format number.
+	 *
+	 * @param number the number
+	 * @param i18n the i 18 n
+	 * @return the string
+	 */
+	public String formatNumber(Number number, I18nContext i18n) {
+		return formatNumber(number, 3, i18n);
+	}
+	
+	/**
+	 * Format number.
+	 *
+	 * @param number the number
+	 * @param fixed the fixed
+	 * @param i18n the i 18 n
+	 * @return the string
+	 */
+	public String formatNumber(Number number, int fixed, I18nContext i18n) {
+		if (number == null) {
+			return "";
+		}
+		
+		if (i18n == null) {
+			i18n = defaultI18n;
+		}
+		
+		NumberFormatKey nfk = new NumberFormatKey(i18n.getDecimalDelimiter(), i18n.getThousandDelimiter(), fixed);
+		NumberFormat nf = numberFormats.get(nfk);
+		if (nf == null) {
+			DecimalFormatSymbols otherSymbols = new DecimalFormatSymbols();
+			char ds = i18n.getDecimalDelimiter() == null || i18n.getDecimalDelimiter().isEmpty() ? '.' : i18n.getDecimalDelimiter().charAt(0);
+			char gs = i18n.getThousandDelimiter() == null || i18n.getThousandDelimiter().isEmpty() ? '.' : i18n.getThousandDelimiter().charAt(0);
+			
+			otherSymbols.setDecimalSeparator(ds);
+			otherSymbols.setGroupingSeparator(gs);
+			
+			DecimalFormat df = new DecimalFormat("#", otherSymbols);
+			
+			df.setGroupingUsed(true);
+			df.setGroupingSize(3);
+			
+			df.setMinimumIntegerDigits(1);
+			
+			df.setMinimumFractionDigits(fixed);
+			df.setMaximumFractionDigits(fixed);
+			nf = df;
+			
+			numberFormats.put(nfk, df);
+		}
+		
+		
+		return nf.format(number);
+	}
+	
+	
+    /**
+     * Format money.
+     *
+     * @param number the number
+     * @param currency the currency
+     * @param i18n the i 18 n
+     * @param fixed the fixed
+     * @return the string
+     */
+    public String formatMoney(Number number, String currency, I18nContext i18n, int fixed) {
+        if (number == null) {
+            return "";
+        }
+		if (i18n == null) {
+			i18n = defaultI18n;
+		}
+		if (currency == null) {
+			currency = "";
+		}
+
+        if (!"right".equals(i18n.getCurrencyFormat())) {
+            StringBuilder sb = new StringBuilder(currency);
+            sb.append(" ").append(formatNumber(number, fixed, i18n));
+            return sb.toString();
+        }
+        
+        StringBuilder sb = new StringBuilder(formatNumber(number, fixed, i18n));
+        sb.append(" ").append(currency);
+        return sb.toString();
+    }
+    
+    
+    /**
+     * Format money.
+     *
+     * @param number the number
+     * @param currency the currency
+     * @param i18n the i 18 n
+     * @return the string
+     */
+    public String formatMoney(Number number, String currency, I18nContext i18n) {
+        return formatMoney(number, currency, i18n, 2);
+    }
+    
+    
+	/**
+	 * Format percent.
+	 *
+	 * @param number the number
+	 * @param i18n the i 18 n
+	 * @return the string
+	 */
+	public String formatPercent(Number number, I18nContext i18n) {
+		if (number == null) {
+			return "";
+		}
+
+		StringBuilder sb = new StringBuilder(formatNumber(number, i18n));
+		sb.append(" %");
+		return sb.toString();
+	}
+	
+	
+	/**
+	 * Format date.
+	 *
+	 * @param date the date
+	 * @param i18n the i 18 n
+	 * @return the string
+	 */
+	public String formatDate(Date date, I18nContext i18n) {
+		if (date == null) {
+			return "";
+		}
+		if (i18n == null) {
+			i18n = defaultI18n;
+		}
+
+		String format = Objects.toString(i18n.getDateFormat(), "MM/dd/yyyy");
+		SimpleDateFormat sdf = dateFormats.get(format);
+		if (sdf == null) {
+			dateFormats.put(format, sdf = new SimpleDateFormat(format));
+		}
+		return sdf.format(date);
+	}
+
+	
+	/**
+	 * Format date.
+	 *
+	 * @param date the date
+	 * @param i18n the i 18 n
+	 * @return the string
+	 */
+	public String formatDate(LocalDate date, I18nContext i18n) {
+		if (date == null) {
+			return "";
+		}
+		if (i18n == null) {
+			i18n = defaultI18n;
+		}
+
+		String format = Objects.toString(i18n.getDateFormat(), "MM/dd/yyyy");
+		DateTimeFormatter dtf = dateFormatters.get(format);
+		if (dtf == null) {
+			dateFormatters.put(format, dtf = DateTimeFormatter.ofPattern(convertJSFormat(format)));
+		}
+		return date.format(dtf);
+	}
+
+	
+	/**
+	 * Convert JS format.
+	 *
+	 * @param format the format
+	 * @return the string
+	 */
+	private String convertJSFormat(String format) {
+		return format.replace("D", "d").replace("m", "M").replace("Y","y");
+	}
+
+
+    /**
+     * Gets the single instance of I18nUtils.
+     *
+     * @return single instance of I18nUtils
+     */
+    public static I18nUtils getInstance() {
+        return instance;
+    }
+}

src/main/java/com/jh/common/template/JhTemplateConfig.java

+package com.jh.common.template;
+
+import org.springframework.context.annotation.Bean;
+
+public class JhTemplateConfig {
+
+	@Bean
+	public TemplateEngine templateEngine() {
+		return null;
+	}
+
+	@Bean
+	public TemplateService templateService() {
+		return null;
+	}
+	
+	
+}

src/main/java/com/jh/common/template/Template.java

+package com.jh.common.template;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Table;
+
+import com.jh.common.jpa.AbstractIdEntity;
+
+@Entity
+@Table(name = "CUSTOMIZABLE_TEMPLATE")
+public class Template extends AbstractIdEntity {
+
+	@Column(name = "CODE")
+	private String code;
+	
+	@Column(name = "NAME")
+	private String name;
+	
+	@Column(name = "TEMPLATE")
+	private String template;
+
+	@Column(name = "TRANSLATE_NAME")
+	private Boolean translateName;
+	
+	public Template() {
+		super();
+	}
+
+	public Template(Long templateId) {
+		super();
+		setId(templateId);
+	}
+
+	public String getCode() {
+		return code;
+	}
+
+	public void setCode(String code) {
+		this.code = code;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public String getTemplate() {
+		return template;
+	}
+
+	public void setTemplate(String template) {
+		this.template = template;
+	}
+
+	public Boolean getTranslateName() {
+		return translateName;
+	}
+
+	public void setTranslateName(Boolean translateName) {
+		this.translateName = translateName;
+	}
+	
+	
+}

src/main/java/com/jh/common/template/TemplateEngine.java

+package com.jh.common.template;
+
+import java.io.Writer;
+import java.util.Locale;
+import java.util.Map;
+
+public interface TemplateEngine {
+
+	/**
+	 * TODO.
+	 *
+	 * @param templateName the template name
+	 * @param clazz the clazz
+	 * @param data the data
+	 * @param locale the locale
+	 * @param writer the writer
+	 */
+	void evaluateTemplate(String templateName, Class<?> clazz, Map<String, Object> data, Locale locale, Writer writer);
+
+	/**
+	 * TODO.
+	 *
+	 * @param template the template
+	 * @param data the data
+	 * @param locale the locale
+	 * @param writer the writer
+	 */
+	void evaluateTemplate(String template, Map<String, Object> data, Locale locale, Writer writer);
+
+}
\ No newline at end of file

src/main/java/com/jh/common/template/TemplateLoader.java

+package com.jh.common.template;
+
+
+public interface TemplateLoader {
+
+	
+	
+}

src/main/java/com/jh/common/template/TemplateService.java

@@ -5,26 +5,9 @@ import java.util.Locale;
 import java.util.Map;
 
 public interface TemplateService {
-
-	/**
-	 * TODO.
-	 *
-	 * @param templateName the template name
-	 * @param clazz the clazz
-	 * @param data the data
-	 * @param locale the locale
-	 * @param writer the writer
-	 */
-	void evaluateTemplate(String templateName, Class<?> clazz, Map<String, Object> data, Locale locale, Writer writer);
-
-	/**
-	 * TODO.
-	 *
-	 * @param template the template
-	 * @param data the data
-	 * @param locale the locale
-	 * @param writer the writer
-	 */
-	void evaluateTemplate(String template, Map<String, Object> data, Locale locale, Writer writer);
-
-}
+	
+	void evaluate(Writer writer, String templateCode, Map<String, Object> data, Locale locale);
+	
+	void evaluateInline(Writer writer, String template, Map<String, Object> data, Locale locale);
+	
+}
\ No newline at end of file

src/main/java/com/jh/common/template/customizable/CustomizableLabelsRepository.java

+package com.jh.common.template.customizable;
+
+import java.util.Collection;
+import java.util.List;
+
+import javax.persistence.Query;
+
+import org.springframework.stereotype.Repository;
+
+import com.jh.common.jpa.AbstractHibernateRepository;
+import com.jh.common.template.Template;
+
+
+@Repository
+public class CustomizableLabelsRepository extends AbstractHibernateRepository {
+
+	
+	@SuppressWarnings("unchecked")
+	public Template fetchTemplate(String code) {
+		Query q = entityManager.createQuery("select t from Template t where code = :code");
+		q.setParameter("code", code);
+		List<Template> list = q.getResultList();
+		return list.isEmpty() ? null : list.get(0);
+	}
+
+
+	@SuppressWarnings("unchecked")
+	public List<CustomizableTemplateLabel> findCustomizedTemplateLabels(Long templateId, Long unitId) {
+		Query q = entityManager.createQuery("select tl from TemplateLabel tl left join tl.template t where t.id = :templateId and tl.unitId = :unitId order by tl.position asc");
+		
+		q.setParameter("template.id", templateId);
+		q.setParameter("unitId", unitId);
+		
+		return q.getResultList();
+	}
+
+
+	@SuppressWarnings("unchecked")
+	public List<CustomizableTemplateLabel> findDefaultTemplateLabels(Long templateId) {
+		Query q = entityManager.createQuery("select tl from TemplateLabel tl left join tl.template t where t.id = :templateId and tl.unitId is null");
+		q.setParameter("template.id", templateId);
+		return q.getResultList();
+	}
+
+
+	public void saveCustomizedLabels(Collection<CustomizableTemplateLabel> labels) {
+		if (labels == null) {
+			return;
+		}
+		labels.stream().forEach(this::save);
+	}
+
+
+
+}

src/main/java/com/jh/common/template/customizable/CustomizableLabelsService.java

+package com.jh.common.template.customizable;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.jh.common.template.Template;
+
+
+@Service
+public class CustomizableLabelsService {
+
+	private CustomizableLabelsRepository repo;
+	
+	private Map<Long, CustomizableTemplateLabels> templateLabelsCache = new HashMap<>();
+	
+	private boolean useCache;
+	
+
+	@Transactional
+	public Template getTemplateContent(String code) {
+		return repo.fetchTemplate(code);
+	}
+	
+	
+	@Transactional
+	public Map<String, CustomizableTemplateLabel> getCustomizationTemplateLabels(Long templateId, Long unitId, String defaultLanguage) {
+		TemplateLabels templateLabels = getTemplateDefaultLabels(templateId);
+		List<CustomizableTemplateLabel> labels = repo.findCustomizedTemplateLabels(templateId, unitId);
+		
+		Map<String, CustomizableTemplateLabel> defaultMap = templateLabels.getLanguages().get(defaultLanguage);
+		if (defaultMap == null) {
+			defaultMap = templateLabels.getFallbackLabels();
+		}
+		if (defaultMap == null) {
+			return null;
+		}
+		
+		Map<String, CustomizableTemplateLabel> result = new HashMap<>();
+		for (String code : templateLabels.getCodes()) {
+			CustomizableTemplateLabel label = defaultMap.get(code);
+			
+			CustomizableTemplateLabel newLabel = new CustomizableTemplateLabel();
+			newLabel.setCode(code);
+			newLabel.setLabel(label.getLabel());
+			newLabel.setDefaultLabel(label.getLabel());
+			newLabel.setPosition(label.getPosition());
+			
+			result.put(code, newLabel);
+		} 
+		
+		for (CustomizableTemplateLabel label : labels) {
+			CustomizableTemplateLabel defaultLabel = result.get(label.getCode());
+			if (defaultLabel != null) {
+				label.setDefaultLabel(defaultLabel.getLabel());
+			}
+			result.put(defaultLanguage, label);
+		}
+		
+		return result;
+	}	
+	
+	@Transactional
+	public Map<String, String> getTranslatedTemplateLabels(Long templateId, Long unitId, String defaultLanguage) {
+		TemplateLabels templateLabels = getTemplateDefaultLabels(templateId);
+		List<CustomizableTemplateLabel> labels = repo.findCustomizedTemplateLabels(templateId, unitId);
+		
+		Map<String, CustomizableTemplateLabel> defaultMap = templateLabels.getLanguages().get(defaultLanguage);
+		if (defaultMap == null) {
+			defaultMap = templateLabels.getFallbackLabels();
+		}
+		if (defaultMap == null) {
+			return null;
+		}
+		
+		Map<String, String> result = new HashMap<>();
+		for (String code : templateLabels.getCodes()) {
+			CustomizableTemplateLabel label = defaultMap.get(code);
+			if (label != null) {
+				result.put(code, label.getLabel());
+			}
+		}
+		
+		for (CustomizableTemplateLabel label : labels) {
+			result.put(label.getCode(), label.getLabel());
+		}
+		
+		return result;
+	}
+	
+	@Transactional
+	public List<CustomizableTemplateLabel> fetchLabels(Long templateId, Long unitId) {
+		return repo.findCustomizedTemplateLabels(templateId, unitId);
+	}
+	
+	
+	@Transactional
+	public TemplateLabels getTemplateDefaultLabels(Long templateId) {
+		CustomizableTemplateLabels labels = useCache ? templateLabelsCache.get(templateId) : null;
+		if (labels != null) {
+			return labels;
+		}
+		
+		
+		Set<String> codes = new LinkedHashSet<>();
+		Map<String, Map<String, CustomizableTemplateLabel>> maps = new HashMap<>();
+		Map<String, CustomizableTemplateLabel> fallbackMap = new HashMap<>();
+
+		List<CustomizableTemplateLabel> defaultLabels = repo.findDefaultTemplateLabels(templateId);
+
+		
+		//keep order
+		for (CustomizableTemplateLabel ctl : defaultLabels) {
+			codes.add(ctl.getCode());
+		}
+		
+		//map labels without order
+		for (CustomizableTemplateLabel ctl : defaultLabels) {
+			Map<String, CustomizableTemplateLabel> map = maps.get(ctl.getLanguageCode());
+			if (map == null) {
+				maps.put(ctl.getLanguageCode(), map = new HashMap<>());
+			}
+			map.put(ctl.getCode(), ctl);
+			if ("en".equalsIgnoreCase(ctl.getLanguageCode()) || !fallbackMap.containsKey(ctl.getCode())) {
+				fallbackMap.put(ctl.getCode(), ctl);
+			}
+		}
+
+		labels = new CustomizableTemplateLabels();
+		labels.codes = codes;
+		labels.languages = new HashMap<>();
+		
+		for (String lang : maps.keySet()) {
+			labels.languages.put(lang, new HashMap<>());
+		}
+		
+		// align maps
+		for (Entry<String, Map<String, CustomizableTemplateLabel>> entry : maps.entrySet()) {
+			Map<String, CustomizableTemplateLabel> langMap = labels.languages.get(entry.getKey());
+			for (String code : codes) {
+				CustomizableTemplateLabel ctl = entry.getValue().get(code);
+				if (ctl == null) {
+					ctl = fallbackMap.get(code);
+				}
+				if (ctl == null) {
+					continue;
+				}
+				
+				langMap.put(code, ctl);
+			}
+		}
+		
+		if (useCache) {
+			templateLabelsCache.put(templateId, labels);
+		}
+		return labels;
+	}
+	
+	
+	@Transactional
+	public void saveCustomizedLabels(Collection<CustomizableTemplateLabel> labels) {
+		repo.saveCustomizedLabels(labels);
+	}
+
+
+	@Transactional
+	public void saveCustomizedLabels(Long unitId, Long templateId, Map<String, String> labels) {
+		Map<String, String> map = new HashMap<>(labels);
+		List<CustomizableTemplateLabel> list = repo.findCustomizedTemplateLabels(templateId, unitId);
+		
+		for (CustomizableTemplateLabel label : list) {
+			String s = map.get(label.getCode());
+			if (s == null) {
+				repo.delete(label);
+			} else {
+				label.setLabel(s);
+				repo.save(label);
+				map.remove(label.getCode());
+			}
+		}
+		
+		for (Entry<String, String> e : map.entrySet()) {
+			CustomizableTemplateLabel label = new CustomizableTemplateLabel();
+			label.setUnitId(unitId);
+			label.setTemplate(new Template(templateId));
+			label.setCode(e.getKey());
+			label.setLabel(e.getValue());
+			repo.save(label);
+		}
+	}
+
+
+	@Autowired(required = false)
+	public void setRepo(CustomizableLabelsRepository repo) {
+		this.repo = repo;
+	}
+	
+
+	@Value("${global.caching:true}")
+	public void setUseCache(boolean useCache) {
+		this.useCache = useCache;
+	}	
+	
+	
+	protected class CustomizableTemplateLabels implements TemplateLabels {
+
+		Set<String> codes = new LinkedHashSet<>();
+
+		Map<String, Map<String, CustomizableTemplateLabel>> languages = new HashMap<>();
+
+		Map<String, CustomizableTemplateLabel> fallbackLabels = new HashMap<>();
+		
+		@Override
+		public Set<String> getCodes() {
+			return codes;
+		}
+
+		@Override
+		public Map<String, Map<String, CustomizableTemplateLabel>> getLanguages() {
+			return languages;
+		}
+
+		@Override
+		public Map<String, CustomizableTemplateLabel> getFallbackLabels() {
+			return fallbackLabels;
+		}
+
+	}
+	
+}

src/main/java/com/jh/common/template/customizable/CustomizableTemplateLabel.java

+package com.jh.common.template.customizable;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+import javax.persistence.Transient;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.jh.common.jpa.AbstractIdEntity;
+import com.jh.common.template.Template;
+
+
+@Entity
+@Table(name = "CUSTOMIZABLE_TEMPLATE_LABEL")
+public class CustomizableTemplateLabel extends AbstractIdEntity {
+
+	@ManyToOne
+	@JoinColumn(name="TEMPLATE_ID", nullable=false, updatable=false)
+	@JsonIgnore
+	private Template template;
+	
+	@Column(name = "UNIT_ID")
+	@JsonIgnore
+	private Long unitId; 
+	
+	@Column(name = "CODE")
+	private String code;
+	
+	@JsonIgnore
+	@Column(name = "POSITION")
+	private Long position;
+
+	@Column(name = "LANG")
+	@JsonIgnore
+	private String languageCode;
+	
+	@Column(name = "LABEL")
+	private String label;
+	
+	
+	@Transient
+	private String defaultLabel;
+
+	@Transient
+	private String defaultLanguageCode;
+
+	public Template getTemplate() {
+		return template;
+	}
+
+	public void setTemplate(Template template) {
+		this.template = template;
+	}
+
+	public Long getUnitId() {
+		return unitId;
+	}
+
+	public void setUnitId(Long unitId) {
+		this.unitId = unitId;
+	}
+
+	public String getCode() {
+		return code;
+	}
+
+	public void setCode(String code) {
+		this.code = code;
+	}
+
+	public Long getPosition() {
+		return position;
+	}
+
+	public void setPosition(Long position) {
+		this.position = position;
+	}
+
+	public String getLanguageCode() {
+		return languageCode;
+	}
+
+	public void setLanguageCode(String languageCode) {
+		this.languageCode = languageCode;
+	}
+
+	public String getLabel() {
+		return label;
+	}
+
+	public void setLabel(String label) {
+		this.label = label;
+	}
+
+	public String getDefaultLabel() {
+		return defaultLabel;
+	}
+
+	public void setDefaultLabel(String defaultLabel) {
+		this.defaultLabel = defaultLabel;
+	}
+
+	public String getDefaultLanguageCode() {
+		return defaultLanguageCode;
+	}
+
+	public void setDefaultLanguageCode(String defaultLanguageCode) {
+		this.defaultLanguageCode = defaultLanguageCode;
+	}
+
+	@Override
+	public String toString() {
+		return "unitId=" + unitId + ", code=" + code + ", languageCode=" + languageCode + ", label=" + label;
+	}
+	
+	
+	
+}

src/main/java/com/jh/common/template/customizable/TemplateLabels.java

+package com.jh.common.template.customizable;
+
+import java.util.Map;
+import java.util.Set;
+
+public interface TemplateLabels {
+
+	Set<String> getCodes();
+
+	Map<String, Map<String, CustomizableTemplateLabel>> getLanguages();
+
+	Map<String, CustomizableTemplateLabel> getFallbackLabels();
+	
+
+}
\ No newline at end of file

src/main/java/com/jh/common/template/customizable/TemplateParam.java

+package com.jh.common.template.customizable;
+
+import javax.persistence.Column;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+
+import com.jh.common.jpa.AbstractIdEntity;
+import com.jh.common.template.Template;
+
+//@Entity
+//@Table(name = "CUSTOMIZABLE_TEMPLATE_PARAM")
+public class TemplateParam extends AbstractIdEntity {
+
+	@Column(name = "CODE")
+	private String code;
+	
+	@Column(name = "NAME")
+	private String name;
+	
+	@Column(name = "LABEL")
+	private String label;
+	
+	@ManyToOne
+	@JoinColumn(name = "TEMPLATE_ID")
+	private Template template;
+	
+	@Column(name = "DEFAULT_VALUE")
+	private String defaultValue;
+
+	public String getCode() {
+		return code;
+	}
+
+	public void setCode(String code) {
+		this.code = code;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public String getLabel() {
+		return label;
+	}
+
+	public void setLabel(String label) {
+		this.label = label;
+	}
+
+	public Template getTemplate() {
+		return template;
+	}
+
+	public void setTemplate(Template template) {
+		this.template = template;
+	}
+
+	public String getDefaultValue() {
+		return defaultValue;
+	}
+
+	public void setDefaultValue(String defaultValue) {
+		this.defaultValue = defaultValue;
+	}
+	
+}

src/main/java/com/jh/common/template/customizable/TemplateParamValue.java

+package com.jh.common.template.customizable;
+
+import javax.persistence.Column;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+
+import com.jh.common.jpa.AbstractIdEntity;
+import com.jh.common.template.Template;
+
+//@Entity
+//@Table(name = "CUSTOMIZABLE_TEMPLATE_PARAM")
+public class TemplateParamValue extends AbstractIdEntity {
+
+	private Long unitId;
+	
+	@ManyToOne
+	@JoinColumn(name = "TEMPLATE_PARAM_ID")
+	private Template template;
+	
+	@Column(name = "VALUE")
+	private String value;
+
+	
+}

src/main/java/com/jh/common/template/customizable/TemplateSettings.java

+package com.jh.common.template.customizable;
+
+import javax.persistence.Column;
+
+import com.jh.common.jpa.AbstractIdEntity;
+
+//@Entity
+//@Table(name = "CUSTOMIZABLE_TEMPLATE_SETTINGS")
+public class TemplateSettings extends AbstractIdEntity {
+
+	@Column(name = "UNIT_ID")
+	private Long unitId;
+
+	@Column(name = "TEMPLATE_ID")
+	private Long templateId;
+	
+	@Column(name = "DEFAULT_LANG")
+	private String defaultLanguage;
+	
+	
+	
+	public TemplateSettings() {
+		super();
+	}
+
+	public TemplateSettings(Long templateId) {
+		super();
+		setId(templateId);
+	}
+
+	
+	
+}

src/main/java/com/jh/common/template/handlebars/HandlebarsTemplateService.java

+package com.jh.common.template.handlebars;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Writer;
+import java.text.MessageFormat;
+import java.time.LocalDate;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Objects;
+
+import javax.annotation.PostConstruct;
+
+import org.springframework.beans.factory.annotation.Value;
+
+import com.github.jknack.handlebars.Context;
+import com.github.jknack.handlebars.Handlebars;
+import com.github.jknack.handlebars.Helper;
+import com.github.jknack.handlebars.Options;
+import com.github.jknack.handlebars.Template;
+import com.github.jknack.handlebars.context.JavaBeanValueResolver;
+import com.github.jknack.handlebars.context.MapValueResolver;
+import com.jh.common.i18n.I18nContext;
+import com.jh.common.i18n.I18nUtils;
+import com.jh.common.template.TemplateService;
+
+
+/**
+ * 
+ * 
+ * {{#if author}}
+ * 	<h1>{{firstName}} {{lastName}}</h1>
+ * {{else}}
+ *	<h1>Unknown Author</h1>
+ * {{/if}}
+ * 
+ * 
+ * {{#each array}}
+  {{@index}}: {{this}}
+	{{/each}}
+ *
+ *
+ *{{#each array as |value key|}}
+  {{#each child as |childValue childKey|}}
+    {{key}} - {{childKey}}. {{childValue}}
+  {{/each}}
+{{/each}}
+ * 
+ * {{#with author}}
+  <p>{{name}}</p>
+{{else}}
+  <p class="empty">No content</p>
+{{/with}}
+
+  {{#with author as |myAuthor|}}
+  <h2>By {{myAuthor.firstName}} {{myAuthor.lastName}}</h2>
+  {{/with}}
+ * 
+ * Nested handlebars paths can also include ../ segments, which evaluate their paths against a parent context. 
+ * 
+ * 
+ * @author Jan Hrabal
+ */
+public class HandlebarsTemplateService implements TemplateService {
+
+	/** The use cache. */
+	private boolean useCache = false;
+
+	/** The template cache. */
+	private Map<String, Template> templateCache;
+
+	private Handlebars handlebars;
+	
+	
+	/**
+	 * Initializes instance.
+	 */
+	@PostConstruct
+	public void init() {
+		templateCache = new HashMap<>();
+		handlebars = new Handlebars();
+		handlebars.setParentScopeResolution(true);
+		handlebars.setPreEvaluatePartialBlocks(false);
+
+		//conditional helpers
+		handlebars.registerHelper("eq", new Helper<Object>() {
+			public CharSequence apply(Object a, Options options) throws IOException {
+				Object b = options.param(0, null);
+				boolean result = Objects.equals(a, b);
+				if (!result) {
+					result = Objects.equals(Objects.toString(a, null), Objects.toString(b, null));
+				}
+			    return result ? options.fn() : options.inverse();
+			} 
+		});
+		
+		I18nUtils i18nUtils = I18nUtils.getInstance();
+
+		handlebars.registerHelper("formatNumber", new Helper<Number>() {
+			public CharSequence apply(Number num, Options options) throws IOException {
+				I18nContext i18nCtx = (I18nContext) options.param(0);
+				return i18nUtils.formatNumber(num, i18nCtx);
+			}
+		});
+		handlebars.registerHelper("formatPercent", new Helper<Number>() {
+			public CharSequence apply(Number num, Options options) throws IOException {
+				I18nContext i18nCtx = (I18nContext) options.param(0);
+				return i18nUtils.formatPercent(num, i18nCtx);
+			}
+		});
+		handlebars.registerHelper("formatMoney", new Helper<Number>() {
+			public CharSequence apply(Number num, Options options) throws IOException {
+				String currency = (String) options.param(0);
+				I18nContext i18nCtx = (I18nContext) options.param(1);
+				return i18nUtils.formatMoney(num, currency, i18nCtx);
+			}
+		});
+		handlebars.registerHelper("formatDate", new Helper<LocalDate>() {
+			public CharSequence apply(LocalDate date, Options options) throws IOException {
+				I18nContext i18nCtx = (I18nContext) options.param(0);
+				return i18nUtils.formatDate(date, i18nCtx);
+			}
+		});
+
+		handlebars.registerHelper("formatLabel", new Helper<String>() {
+			public CharSequence apply(String key, Options options) throws IOException {
+
+				if (options.params == null || options.params.length < 1) {
+					return "Wrong formatLabel syntax for key " + key + ". It should be formatLabel key labels ...params";
+				}
+				
+				Map<String, Object> labels = (Map<String, Object>) options.params[0];
+				if (labels == null) {
+					return "!!" + key;
+				}
+				
+				String label = (String) labels.get(key);
+				if (label == null) {
+					return "!!" + key;
+				}
+				
+				Object[] messageParams = options.params.length > 1 ? Arrays.copyOfRange(options.params, 1, options.params.length) : new Object[0];
+				return MessageFormat.format(label, messageParams);
+			}
+		});
+	
+	}
+	
+	
+	@Override
+	public void evaluate(Writer writer, String templateCode, Map<String, Object> data, Locale locale) {
+	    String name = "template://" + templateCode;
+
+	    Template template = useCache ? templateCache.get(name) : null;
+
+	    //TODO read template
+	    
+		if (template == null) {
+			template = handlebars.compileInline(s);
+			if (useCache) {
+				templateCache.put(name, template);
+			}
+		}
+		
+		evaluateTemplate(template, data, locale, writer);
+	}
+	
+
+	@Override
+	public void evaluateInline(Writer writer, String template, Map<String, Object> data, Locale locale) {
+		if (locale == null) {
+			locale = Locale.ENGLISH;
+		}
+		
+		String name = "inline://" + template;
+		
+		Template t = useCache ? templateCache.get(name) : null;
+		if (t == null) {
+			try {
+				t = handlebars.compileInline(template);
+			} catch (Exception e) {
+				throw new RuntimeException(String.format("Inline template '%s' cannot be read", template), e);
+			}
+			if (useCache) {
+				templateCache.put(name, t);
+			}
+		}
+		
+		evaluateTemplate(t, data, locale, writer);
+	}
+	
+	
+	protected void evaluateTemplate(Template t, Map<String, Object> data, Locale locale,  Writer writer) {
+		  Context context = Context
+				    .newBuilder(data)
+				    .combine(data)
+				    .resolver(JavaBeanValueResolver.INSTANCE, MapValueResolver.INSTANCE)
+				    .build();
+
+		try {
+			t.apply(context, writer);
+		} catch (IOException e) {
+			throw new RuntimeException("Cannot evaluate template", e);
+		}
+	}
+	
+	
+	/**
+	 * Sets the use cache.
+	 *
+	 * @param useCache the new use cache
+	 */
+	@Value("${global.caching:true}")
+	public void setUseCache(boolean useCache) {
+		this.useCache = useCache;
+	}	
+
+
+}