merge angel-format

.gitignore

@@ -16,6 +16,7 @@
 *.class
 angel-ps/core/target/
 angel-ps/psf/target/
+angel-ps/graph/
 angel-ps/examples/target/
 angel-ps/jarvis/target/
 angel-ps/tools/target/

angel-ps/core/src/main/java/com/tencent/angel/client/AngelClient.java

@@ -895,7 +895,7 @@ protected void setOutputDirectory() throws IOException {
         boolean deleteOnExist = conf.getBoolean(AngelConf.ANGEL_JOB_OUTPUT_PATH_DELETEONEXIST,
                 AngelConf.DEFAULT_ANGEL_JOB_OUTPUT_PATH_DELETEONEXIST);
 
-        String path = null;
+        String path;
         if (actionType.matches("train") || actionType.matches("inctrain")) {
             path = conf.get(AngelConf.ANGEL_SAVE_MODEL_PATH);
         } else if (actionType.matches("predict")) {

angel-ps/core/src/main/java/com/tencent/angel/model/LoadState.java

@@ -3,7 +3,7 @@
  *
  * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
  *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
  * compliance with the License. You may obtain a copy of the License at
  *
  * https://opensource.org/licenses/Apache-2.0

angel-ps/core/src/main/java/com/tencent/angel/model/ModelIOUtils.java

@@ -0,0 +1,19 @@
+package com.tencent.angel.model;
+
+import com.tencent.angel.ps.storage.partition.RowBasedPartition;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ModelIOUtils {
+  public static List<Integer> filter(RowBasedPartition part, List<Integer> rowIds) {
+    List<Integer> ret = new ArrayList<>();
+    for (int rowId : rowIds) {
+      if (part.hasRow(rowId)) {
+        ret.add(rowId);
+      }
+    }
+
+    return ret;
+  }
+
+}