Authenticator and timestamps for query request

README.md

@@ -69,6 +69,7 @@ Query exchange
 		<!-- may also automatically reject requests:
 		 reject all because of vacation,
 		 reject specific recurring query -->
+		<reject-reason>La la la</reject-reason>
 		<comment></comment>
 		<last-execution>
 			<completed>XXXtimestamp</completed>

src/main/java/org/aktin/dwh/Authenticator.java

 package org.aktin.dwh;
 
+import java.security.Principal;
+
 public interface Authenticator {
-	/**
-	 * Determine whether the given user and password combination is granted
-	 * the given role.
-	 * @param user user name
-	 * @param password password
-	 * @param role role
-	 * @return true if all criteria are matched, false otherwise
-	 */
-	boolean verifyUserRole(String user, char[] password, String role);
 	
-	/**
-	 * Determine whether a given user and password combination
-	 * has admin privileges.
+	Principal authenticate(String user, char[] password);
+	boolean isUserInRole(Principal user, String role);
+	/** Determine whether a given user has admin privileges.
 	 * 
-	 * @param user user name
-	 * @param password password
-	 * @return true if the user is admin and the password is correct
+	 * @param user user
+	 * @return  true if the user has administrative rights
 	 */
-	boolean verifyAdmin(String user, char[] password);
+	boolean isUserAdmin(Principal user);
+	
+	
+	
+	
 }

src/main/java/org/aktin/exchange/QueryRequest.java

@@ -34,10 +34,19 @@ public class QueryRequest {
 	/**
 	 * Time stamp when the request was published at the query broker.
 	 */
+	@XmlElement(required=true)
 	Instant published;
+	/**
+	 * Time stamp for the earliest execution / when the request is open.
+	 * If unspecified, the query can be executed at any time (usually
+	 * before the deadline)
+	 */
+	@XmlElement(required=false)
+	Instant scheduled;
 	/**
 	 * Due date until which the query results have to be submitted.
 	 */
+	@XmlElement(required=true)
 	Instant deadline;
 	/**
 	 * Date when the request was closed by the query broker. While

src/main/java/org/aktin/prefs/Preference.java

@@ -35,11 +35,29 @@ public interface Preference<T> {
 	 * @param user user name
 	 * @param value value
 	 */
-	public void setValue(String user, T value);
+	public void setValue(T value, String user);
 	
 	/**
 	 * Set the value by the system user
 	 * @param value value
 	 */
 	public void setValue(T value);
+	
+	/**
+	 * Set the value to the given string representation. The value
+	 * is changed by the system user.
+	 * @param value string representing the value
+	 * @throws IllegalArgumentException if the string conversion fails
+	 */
+	public void setValueString(String value) throws IllegalArgumentException;
+
+	/**
+	 * Set the value to the given string representation. The specified
+	 * user name is used to perform the change.
+	 * 
+	 * @param value string value
+	 * @param user user name
+	 * @throws IllegalArgumentException if string conversion fails
+	 */
+	public void setValueString(String value, String user) throws IllegalArgumentException;
 }

src/test/resources/request.xml

@@ -3,7 +3,8 @@
 	xmlns:xi="http://www.w3.org/2001/XInclude"
 	xmlns:xml="http://www.w3.org/XML/1998/namespace">
 	<id>123</id>
-	<published>2016-04-28T00:00:00Z</published>
+	<published>2016-04-28T00:00:00Z</published>	
+	<scheduled>2016-04-28T00:00:00Z</scheduled>
 	<deadline>2016-04-30T00:00:00Z</deadline>
 	<xi:include href="query.xml"/>