pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / src / java / org / apache / lucene / store / ChecksumIndexOutput.java

diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ChecksumIndexOutput.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ChecksumIndexOutput.java
deleted file mode 100644 (file)
index 1805893..0000000
--- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ChecksumIndexOutput.java
+++ /dev/null
@@ -1,102 +0,0 @@
-package org.apache.lucene.store;
-
-/**
- * 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.
- */
-
-import java.io.IOException;
-import java.util.zip.CRC32;
-import java.util.zip.Checksum;
-
-/** Writes bytes through to a primary IndexOutput, computing
- *  checksum.  Note that you cannot use seek().
- *
- * @lucene.internal
- */
-public class ChecksumIndexOutput extends IndexOutput {
-  IndexOutput main;
-  Checksum digest;
-
-  public ChecksumIndexOutput(IndexOutput main) {
-    this.main = main;
-    digest = new CRC32();
-  }
-
-  @Override
-  public void writeByte(byte b) throws IOException {
-    digest.update(b);
-    main.writeByte(b);
-  }
-
-  @Override
-  public void writeBytes(byte[] b, int offset, int length) throws IOException {
-    digest.update(b, offset, length);
-    main.writeBytes(b, offset, length);
-  }
-
-  public long getChecksum() {
-    return digest.getValue();
-  }
-
-  @Override
-  public void flush() throws IOException {
-    main.flush();
-  }
-
-  @Override
-  public void close() throws IOException {
-    main.close();
-  }
-
-  @Override
-  public long getFilePointer() {
-    return main.getFilePointer();
-  }
-
-  @Override
-  public void seek(long pos) {
-    throw new RuntimeException("not allowed");    
-  }
-
-  /**
-   * Starts but does not complete the commit of this file (=
-   * writing of the final checksum at the end).  After this
-   * is called must call {@link #finishCommit} and the
-   * {@link #close} to complete the commit.
-   */
-  public void prepareCommit() throws IOException {
-    final long checksum = getChecksum();
-    // Intentionally write a mismatched checksum.  This is
-    // because we want to 1) test, as best we can, that we
-    // are able to write a long to the file, but 2) not
-    // actually "commit" the file yet.  This (prepare
-    // commit) is phase 1 of a two-phase commit.
-    final long pos = main.getFilePointer();
-    main.writeLong(checksum-1);
-    main.flush();
-    main.seek(pos);
-  }
-
-  /** See {@link #prepareCommit} */
-  public void finishCommit() throws IOException {
-    main.writeLong(getChecksum());
-  }
-
-  @Override
-  public long length() throws IOException {
-    return main.length();
-  }
-}