added Provider datatype and its handler

api/src/main/java/org/openmrs/customdatatype/datatype/ProviderDatatype.java

@@ -0,0 +1,48 @@
+/**
+ * The contents of this file are subject to the OpenMRS Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://license.openmrs.org
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
+ */
+package org.openmrs.customdatatype.datatype;
+
+import org.apache.commons.lang.StringUtils;
+import org.openmrs.Provider;
+import org.openmrs.api.context.Context;
+import org.openmrs.customdatatype.SerializingCustomDatatype;
+import org.springframework.stereotype.Component;
+
+/**
+ * Datatype for Provider, represented by org.openmrs.Provider.
+ * @since 1.9
+ */
+@Component
+public class ProviderDatatype extends SerializingCustomDatatype<Provider> {
+
+	/**
+	 * @see org.openmrs.customdatatype.SerializingCustomDatatype#serialize(java.lang.Object)
+	 */
+	@Override
+	public String serialize(Provider typedValue) {
+		if (typedValue == null)
+			return null;
+		return typedValue.getUuid();
+	}
+
+	/**
+	 * @see org.openmrs.customdatatype.SerializingCustomDatatype#deserialize(java.lang.String)
+	 */
+	@Override
+	public Provider deserialize(String serializedValue) {
+		if (StringUtils.isEmpty(serializedValue))
+			return null;
+		return Context.getProviderService().getProviderByUuid(serializedValue);
+	}
+}

web/src/main/java/org/openmrs/web/attribute/handler/ProviderDatatypeHandler.java

@@ -0,0 +1,92 @@
+/**
+ * The contents of this file are subject to the OpenMRS Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://license.openmrs.org
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
+ */
+package org.openmrs.web.attribute.handler;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.commons.lang.StringUtils;
+import org.openmrs.Provider;
+import org.openmrs.api.context.Context;
+import org.openmrs.customdatatype.CustomDatatype;
+import org.openmrs.customdatatype.InvalidCustomValueException;
+import org.openmrs.customdatatype.datatype.ProviderDatatype;
+import org.openmrs.messagesource.MessageSourceService;
+import org.springframework.stereotype.Component;
+
+/**
+ * Handler for the Provider custom datatype
+ */
+@Component
+public class ProviderDatatypeHandler implements FieldGenDatatypeHandler<ProviderDatatype, Provider> {
+
+	/**
+	 * @see org.openmrs.customdatatype.CustomDatatypeHandler#setHandlerConfiguration(java.lang.String)
+	 */
+	@Override
+	public void setHandlerConfiguration(String arg0) {
+		// not used
+	}
+
+	/**
+	 * @see org.openmrs.web.attribute.handler.FieldGenDatatypeHandler#getWidgetName()
+	 */
+	@Override
+	public String getWidgetName() {
+		return "provider";
+	}
+
+	/**
+	 * @see org.openmrs.web.attribute.handler.FieldGenDatatypeHandler#getWidgetConfiguration()
+	 */
+	@Override
+	public Map<String, Object> getWidgetConfiguration() {
+		return null;
+	}
+
+	/**
+	 * @see org.openmrs.web.attribute.handler.FieldGenDatatypeHandler#getValue(org.openmrs.customdatatype.CustomDatatype, javax.servlet.http.HttpServletRequest, java.lang.String)
+	 */
+	@Override
+	public Provider getValue(ProviderDatatype datatype, HttpServletRequest request,
+	        String formFieldName) throws InvalidCustomValueException {
+		String result = request.getParameter(formFieldName);
+		if (StringUtils.isBlank(result))
+			return null;
+		try {
+			return Context.getProviderService().getProviderByUuid(result);
+		}
+		catch (Exception e) {
+			throw new InvalidCustomValueException("Invalid provider: " + result);
+		}
+	}
+
+	/**
+	 * @see org.openmrs.web.attribute.handler.HtmlDisplayableDatatypeHandler#toHtmlSummary(org.openmrs.customdatatype.CustomDatatype, java.lang.String)
+	 */
+	@Override
+	public CustomDatatype.Summary toHtmlSummary(CustomDatatype<Provider> datatype, String valueReference) {
+		return new CustomDatatype.Summary(valueReference, true);
+	}
+
+	/**
+	 * @see org.openmrs.web.attribute.handler.HtmlDisplayableDatatypeHandler#toHtml(org.openmrs.customdatatype.CustomDatatype, java.lang.String)
+	 */
+	@Override
+	public String toHtml(CustomDatatype<Provider> datatype, String valueReference) {
+		return valueReference;
+	}
+}