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Posted to commits@hbase.apache.org by st...@apache.org on 2010/11/05 04:53:12 UTC
svn commit: r1031423 -
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultySequenceFileLogReader.java
Author: stack
Date: Fri Nov 5 03:53:11 2010
New Revision: 1031423
URL: http://svn.apache.org/viewvc?rev=1031423&view=rev
Log:
HBASE-2935 ... missing file
Added:
hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultySequenceFileLogReader.java
Added: hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultySequenceFileLogReader.java
URL: http://svn.apache.org/viewvc/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultySequenceFileLogReader.java?rev=1031423&view=auto
==============================================================================
--- hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultySequenceFileLogReader.java (added)
+++ hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultySequenceFileLogReader.java Fri Nov 5 03:53:11 2010
@@ -0,0 +1,79 @@
+/**
+ * Copyright 2010 The Apache Software Foundation
+ *
+ * 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.hadoop.hbase.regionserver.wal;
+
+import java.io.IOException;
+import java.util.LinkedList;
+import java.util.Queue;
+
+import org.apache.hadoop.hbase.regionserver.wal.HLog.Entry;
+
+public class FaultySequenceFileLogReader extends SequenceFileLogReader {
+
+ enum FailureType {
+ BEGINNING, MIDDLE, END, NONE
+ }
+
+ Queue<Entry> nextQueue = new LinkedList<Entry>();
+ int numberOfFileEntries = 0;
+
+ FailureType getFailureType() {
+ return FailureType.valueOf(conf.get("faultysequencefilelogreader.failuretype", "NONE"));
+ }
+
+ @Override
+ public HLog.Entry next(HLog.Entry reuse) throws IOException {
+ this.entryStart = this.reader.getPosition();
+ boolean b = true;
+
+ if (nextQueue.isEmpty()) { // Read the whole thing at once and fake reading
+ while (b == true) {
+ HLogKey key = HLog.newKey(conf);
+ WALEdit val = new WALEdit();
+ HLog.Entry e = new HLog.Entry(key, val);
+ b = this.reader.next(e.getKey(), e.getEdit());
+ nextQueue.offer(e);
+ numberOfFileEntries++;
+ }
+ }
+
+ if (nextQueue.size() == this.numberOfFileEntries
+ && getFailureType() == FailureType.BEGINNING) {
+ throw this.addFileInfoToException(new IOException("fake Exception"));
+ } else if (nextQueue.size() == this.numberOfFileEntries / 2
+ && getFailureType() == FailureType.MIDDLE) {
+ throw this.addFileInfoToException(new IOException("fake Exception"));
+ } else if (nextQueue.size() == 1 && getFailureType() == FailureType.END) {
+ throw this.addFileInfoToException(new IOException("fake Exception"));
+ }
+
+ if (nextQueue.peek() != null) {
+ edit++;
+ }
+
+ Entry e = nextQueue.poll();
+
+ if (e.getEdit().isEmpty()) {
+ return null;
+ }
+ return e;
+ }
+}