Join repository roles from the system and from the database

scm-webapp/src/main/java/sonia/scm/security/RepositoryPermissionProvider.java

@@ -0,0 +1,60 @@
+package sonia.scm.security;
+
+import com.google.inject.Inject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import sonia.scm.plugin.PluginLoader;
+import sonia.scm.repository.RepositoryRole;
+import sonia.scm.repository.RepositoryRoleDAO;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+import java.io.IOException;
+import java.net.URL;
+import java.util.AbstractList;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+
+import static java.util.Collections.unmodifiableCollection;
+
+public class RepositoryPermissionProvider {
+
+  private final SystemRepositoryPermissionProvider systemRepositoryPermissionProvider;
+  private final RepositoryRoleDAO repositoryRoleDAO;
+
+  @Inject
+  public RepositoryPermissionProvider(SystemRepositoryPermissionProvider systemRepositoryPermissionProvider, RepositoryRoleDAO repositoryRoleDAO) {
+    this.systemRepositoryPermissionProvider = systemRepositoryPermissionProvider;
+    this.repositoryRoleDAO = repositoryRoleDAO;
+  }
+
+  public Collection<String> availableVerbs() {
+    return systemRepositoryPermissionProvider.availableVerbs();
+  }
+
+  public Collection<RepositoryRole> availableRoles() {
+    List<RepositoryRole> customRoles = repositoryRoleDAO.getAll();
+    List<RepositoryRole> availableSystemRoles = systemRepositoryPermissionProvider.availableRoles();
+
+    return new AbstractList<RepositoryRole>() {
+      @Override
+      public RepositoryRole get(int index) {
+        return index < availableSystemRoles.size()? availableSystemRoles.get(index): customRoles.get(index - availableSystemRoles.size());
+      }
+
+      @Override
+      public int size() {
+        return availableSystemRoles.size() + customRoles.size();
+      }
+    };
+  }
+}