Delete a file for HDFS-5236.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-4949@1525184 13f79535-47bb-0310-9956-ffa450edef68
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.util;
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import java.io.IOException;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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/**
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* Contains either a value of type T, or an IOException.
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*
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* This can be useful as a return value for batch APIs that need granular
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* error reporting.
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*/
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@InterfaceAudience.LimitedPrivate({"HDFS"})
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@InterfaceStability.Unstable
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public class Fallible<T> {
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private final T val;
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private final IOException ioe;
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public Fallible(T val) {
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this.val = val;
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this.ioe = null;
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}
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public Fallible(IOException ioe) {
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this.val = null;
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this.ioe = ioe;
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}
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public T get() throws IOException {
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if (ioe != null) {
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throw new IOException(ioe);
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}
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return this.val;
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}
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}
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