/*
* 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.flume.sink.hdfs;
import org.apache.flume.Event;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.io.compress.CompressionCodec;
import java.io.IOException;
public class HDFSTestSeqWriter extends HDFSSequenceFile {
protected volatile boolean closed;
protected volatile boolean opened;
private int openCount = 0;
HDFSTestSeqWriter(int openCount) {
this.openCount = openCount;
}
@Override
public void open(String filePath, CompressionCodec codeC, CompressionType compType)
throws IOException {
super.open(filePath, codeC, compType);
if (closed) {
opened = true;
}
}
@Override
public void append(Event e) throws IOException {
if (e.getHeaders().containsKey("fault")) {
throw new IOException("Injected fault");
} else if (e.getHeaders().containsKey("fault-once")) {
e.getHeaders().remove("fault-once");
throw new IOException("Injected fault");
} else if (e.getHeaders().containsKey("fault-until-reopen")) {
// opening first time.
if (openCount == 1) {
throw new IOException("Injected fault-until-reopen");
}
} else if (e.getHeaders().containsKey("slow")) {
long waitTime = Long.parseLong(e.getHeaders().get("slow"));
try {
Thread.sleep(waitTime);
} catch (InterruptedException eT) {
throw new IOException("append interrupted", eT);
}
}
super.append(e);
}
@Override
public void close() throws IOException {
closed = true;
super.close();
}
}