--- /dev/null
+package org.argeo.support.odk.servlet;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.support.odk.OdkForm;
+
+/** Lists available forms. */
+public class OdkFormListServlet extends HttpServlet {
+ private static final long serialVersionUID = 2706191315048423321L;
+ private final static Log log = LogFactory.getLog(OdkFormListServlet.class);
+
+ private Set<OdkForm> odkForms = Collections.synchronizedSet(new HashSet<>());
+
+ @Override
+ protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+ resp.setContentType("text/xml; charset=utf-8");
+ resp.setHeader("X-OpenRosa-Version", "1.0");
+ resp.setDateHeader("Date", System.currentTimeMillis());
+
+ String serverName = req.getServerName();
+ int serverPort = req.getServerPort();
+ String protocol = serverPort == 443 || req.isSecure() ? "https" : "http";
+
+ Writer writer = resp.getWriter();
+ writer.append("<?xml version='1.0' encoding='UTF-8' ?>");
+ writer.append("<xforms xmlns=\"http://openrosa.org/xforms/xformsList\">");
+ for (OdkForm form : odkForms) {
+ StringBuilder sb = new StringBuilder();
+ sb.append("<xform>");
+ sb.append("<formID>" + form.getFormId() + "</formID>");
+ sb.append("<name>" + form.getName() + "</name>");
+ sb.append("<version>" + form.getVersion() + "</version>");
+ sb.append("<hash>" + form.getHash(null) + "</hash>");
+ sb.append("<descriptionText>" + form.getDescription() + "</descriptionText>");
+ sb.append("<downloadUrl>" + protocol + "://" + serverName
+ + (serverPort == 80
+ || serverPort == 443 ? "" : ":" + serverPort) + "/api/odk/" + form.getFileName()
+ + "</downloadUrl>");
+ sb.append("</xform>");
+ String str = sb.toString();
+ if (log.isDebugEnabled())
+ log.debug(str);
+ writer.append(str);
+ }
+ writer.append("</xforms>");
+ }
+
+ public void addForm(OdkForm odkForm) {
+ odkForms.add(odkForm);
+ }
+
+ public void removeForm(OdkForm odkForm) {
+ odkForms.remove(odkForm);
+ }
+}