Move atomix-storage to a top-level directory

[controller.git] / third-party / atomix / storage / src / main / java / io / atomix / storage / journal / SegmentedJournalWriter.java

diff --git a/third-party/atomix/storage/src/main/java/io/atomix/storage/journal/SegmentedJournalWriter.java b/third-party/atomix/storage/src/main/java/io/atomix/storage/journal/SegmentedJournalWriter.java
deleted file mode 100644 (file)
index d4a1a68..0000000
--- a/third-party/atomix/storage/src/main/java/io/atomix/storage/journal/SegmentedJournalWriter.java
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright 2017-present Open Networking Foundation
- *
- * 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
- *
- * 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 io.atomix.storage.journal;
-
-import java.nio.BufferOverflowException;
-
-/**
- * Raft log writer.
- */
-public class SegmentedJournalWriter<E> implements JournalWriter<E> {
-  private final SegmentedJournal<E> journal;
-  private JournalSegment<E> currentSegment;
-  private MappableJournalSegmentWriter<E> currentWriter;
-
-  public SegmentedJournalWriter(SegmentedJournal<E> journal) {
-    this.journal = journal;
-    this.currentSegment = journal.getLastSegment();
-    currentSegment.acquire();
-    this.currentWriter = currentSegment.writer();
-  }
-
-  @Override
-  public long getLastIndex() {
-    return currentWriter.getLastIndex();
-  }
-
-  @Override
-  public Indexed<E> getLastEntry() {
-    return currentWriter.getLastEntry();
-  }
-
-  @Override
-  public long getNextIndex() {
-    return currentWriter.getNextIndex();
-  }
-
-  @Override
-  public void reset(long index) {
-    if (index > currentSegment.index()) {
-      currentSegment.release();
-      currentSegment = journal.resetSegments(index);
-      currentSegment.acquire();
-      currentWriter = currentSegment.writer();
-    } else {
-      truncate(index - 1);
-    }
-    journal.resetHead(index);
-  }
-
-  @Override
-  public void commit(long index) {
-    if (index > journal.getCommitIndex()) {
-      journal.setCommitIndex(index);
-      if (journal.isFlushOnCommit()) {
-        flush();
-      }
-    }
-  }
-
-  @Override
-  public <T extends E> Indexed<T> append(T entry) {
-    try {
-      return currentWriter.append(entry);
-    } catch (BufferOverflowException e) {
-      if (currentSegment.index() == currentWriter.getNextIndex()) {
-        throw e;
-      }
-      currentWriter.flush();
-      currentSegment.release();
-      currentSegment = journal.getNextSegment();
-      currentSegment.acquire();
-      currentWriter = currentSegment.writer();
-      return currentWriter.append(entry);
-    }
-  }
-
-  @Override
-  public void append(Indexed<E> entry) {
-    try {
-      currentWriter.append(entry);
-    } catch (BufferOverflowException e) {
-      if (currentSegment.index() == currentWriter.getNextIndex()) {
-        throw e;
-      }
-      currentWriter.flush();
-      currentSegment.release();
-      currentSegment = journal.getNextSegment();
-      currentSegment.acquire();
-      currentWriter = currentSegment.writer();
-      currentWriter.append(entry);
-    }
-  }
-
-  @Override
-  public void truncate(long index) {
-    if (index < journal.getCommitIndex()) {
-      throw new IndexOutOfBoundsException("Cannot truncate committed index: " + index);
-    }
-
-    // Delete all segments with first indexes greater than the given index.
-    while (index < currentSegment.index() && currentSegment != journal.getFirstSegment()) {
-      currentSegment.release();
-      journal.removeSegment(currentSegment);
-      currentSegment = journal.getLastSegment();
-      currentSegment.acquire();
-      currentWriter = currentSegment.writer();
-    }
-
-    // Truncate the current index.
-    currentWriter.truncate(index);
-
-    // Reset segment readers.
-    journal.resetTail(index + 1);
-  }
-
-  @Override
-  public void flush() {
-    currentWriter.flush();
-  }
-
-  @Override
-  public void close() {
-    currentWriter.close();
-  }
-}