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diff --git a/src/jalview/urls/api/UrlProviderI.java b/src/jalview/urls/api/UrlProviderI.java
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+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.urls.api;
+
+import jalview.urls.UrlLinkDisplay;
+
+import java.util.List;
+
+/**
+ * Methods for providing consistent access to up-to-date URLs
+ * 
+ * @author $author$
+ * @version $Revision$
+ */
+public interface UrlProviderI
+{
+
+  /**
+   * Get names and urls in the UrlProvider as strings for display
+   * 
+   */
+  List<String> getLinksForMenu();
+
+  /**
+   * Get names and urls as strings for display
+   * 
+   */
+  List<UrlLinkDisplay> getLinksForTable();
+
+  /**
+   * Set names and urls from display settings
+   */
+  void setUrlData(List<UrlLinkDisplay> links);
+
+  /**
+   * Get the link for the primary URL
+   * 
+   * @seqid sequence id for which to build link
+   * @return link for the primary URL
+   */
+  String getPrimaryUrl(String seqid);
+
+  /**
+   * Get the primary URL id
+   * 
+   * @return id for primary URL
+   */
+  String getPrimaryUrlId();
+
+  /**
+   * Get the target of the link for the primary URL
+   * 
+   * @seqid sequence id for which to build link
+   * @return target of link for the primary URL
+   */
+  String getPrimaryTarget(String seqid);
+
+  /**
+   * Set the primary URL: if only one URL can be used, this URL is the one which
+   * should be chosen, e.g. provides the URL to be used on double-click of a
+   * sequence id
+   * 
+   * @param id
+   *          the id of the URL to set as primary
+   * @return true if setting is successful
+   * @throws IllegalArgumentException
+   *           if id does not exist as a url in the UrlProvider
+   */
+  boolean setPrimaryUrl(String id) throws IllegalArgumentException;
+
+  /**
+   * Test if UrlProvider contains a url
+   * 
+   * @param id
+   *          to test for
+   * @return true of UrlProvider contains this id, false otherwise
+   */
+  boolean contains(String id);
+
+  /**
+   * Write out all URLs as a string suitable for serialising
+   * 
+   * @return string representation of available URLs
+   */
+  String writeUrlsAsString(boolean selected);
+
+  /**
+   * Choose the primary URL in the event of the selected primary being
+   * unavailable
+   * 
+   * @return id of chosen primary url
+   */
+  String choosePrimaryUrl();
+
+  /**
+   * Determine if id is for a user-defined URL
+   */
+  boolean isUserEntry(String id);
+}