Continue structural port from Spring Boot to Undertow

src/main/java/io/kamax/mxisd/crypto/CryptoFactory.java

@@ -0,0 +1,58 @@
+/*
+ * mxisd - Matrix Identity Server Daemon
+ * Copyright (C) 2018 Kamax Sarl
+ *
+ * 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.crypto;
+
+import io.kamax.matrix.crypto.*;
+import io.kamax.mxisd.config.KeyConfig;
+import io.kamax.mxisd.config.ServerConfig;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.File;
+import java.io.IOException;
+
+public class CryptoFactory {
+
+    public static KeyManager getKeyManager(KeyConfig keyCfg) {
+        _KeyStore store;
+        if (StringUtils.equals(":memory:", keyCfg.getPath())) {
+            store = new KeyMemoryStore();
+        } else {
+            File keyStore = new File(keyCfg.getPath());
+            if (!keyStore.exists()) {
+                try {
+                    FileUtils.touch(keyStore);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+
+            store = new KeyFileStore(keyCfg.getPath());
+        }
+
+        return new KeyManager(store);
+    }
+
+    public static SignatureManager getSignatureManager(KeyManager keyMgr, ServerConfig cfg) {
+        return new SignatureManager(keyMgr, cfg.getName());
+    }
+
+}