Added basic log

app/src/main/java/eu/faircode/email/EntityLog.java

@@ -0,0 +1,64 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail 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.
+
+    NetGuard 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 NetGuard.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018 by Marcel Bokhorst (M66B)
+*/
+
+import android.content.Context;
+
+import java.util.Date;
+
+import androidx.annotation.NonNull;
+import androidx.room.Entity;
+import androidx.room.Index;
+import androidx.room.PrimaryKey;
+
+@Entity(
+        tableName = EntityLog.TABLE_NAME,
+        foreignKeys = {
+        },
+        indices = {
+                @Index(value = {"time"})
+        }
+)
+public class EntityLog {
+    static final String TABLE_NAME = "log";
+
+    @PrimaryKey(autoGenerate = true)
+    public Long id;
+    @NonNull
+    public Long time;
+    @NonNull
+    public String data;
+
+    static void log(Context context, String data) {
+        EntityLog entry = new EntityLog();
+        entry.time = new Date().getTime();
+        entry.data = data;
+        DB.getInstance(context).log().insertLog(entry);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj instanceof EntityLog) {
+            EntityLog other = (EntityLog) obj;
+            return (this.time.equals(other.time) && this.data.equals(other.data));
+        } else
+            return false;
+    }
+}