diff options
Diffstat (limited to 'common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/BlockFetchingListener.java')
-rw-r--r-- | common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/BlockFetchingListener.java | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/BlockFetchingListener.java b/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/BlockFetchingListener.java new file mode 100644 index 0000000000..138fd5389c --- /dev/null +++ b/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/BlockFetchingListener.java @@ -0,0 +1,36 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.spark.network.shuffle; + +import java.util.EventListener; + +import org.apache.spark.network.buffer.ManagedBuffer; + +public interface BlockFetchingListener extends EventListener { + /** + * Called once per successfully fetched block. After this call returns, data will be released + * automatically. If the data will be passed to another thread, the receiver should retain() + * and release() the buffer on their own, or copy the data to a new buffer. + */ + void onBlockFetchSuccess(String blockId, ManagedBuffer data); + + /** + * Called at least once per block upon failures. + */ + void onBlockFetchFailure(String blockId, Throwable exception); +} |