Enchanced profile management (#68)

* Proof of concept of adding 3PIDs data to user profile
* Document reverse proxy apache config
* Support for Matrix Gateway project roles' endpoint
* Fix conflicting ThreePid object defined in SDK and mxisd projects

src/main/java/io/kamax/mxisd/profile/ProfileManager.java

@@ -0,0 +1,58 @@
+/*
+ * mxisd - Matrix Identity Server Daemon
+ * Copyright (C) 2018 Kamax Sàrl
+ *
+ * https://www.kamax.io/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.kamax.mxisd.profile;
+
+import io.kamax.matrix._MatrixID;
+import io.kamax.matrix._ThreePid;
+import org.springframework.stereotype.Component;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+@Component
+public class ProfileManager {
+
+    private List<ProfileProvider> providers;
+
+    public ProfileManager(List<ProfileProvider> providers) {
+        this.providers = providers.stream()
+                .filter(ProfileProvider::isEnabled)
+                .collect(Collectors.toList());
+    }
+
+    public <T> List<T> get(Function<ProfileProvider, List<T>> function) {
+        return providers.stream()
+                .map(function)
+                .flatMap(Collection::stream)
+                .collect(Collectors.toList());
+    }
+
+    public List<_ThreePid> getThreepids(_MatrixID mxid) {
+        return get(p -> p.getThreepids(mxid));
+    }
+
+    public List<String> getRoles(_MatrixID mxid) {
+        return get(p -> p.getRoles(mxid));
+    }
+
+}