pylucene 3.5.0-3

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

diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/BufferedIndexOutput.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/BufferedIndexOutput.java
deleted file mode 100644 (file)
index 1dfbcec..0000000
--- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/BufferedIndexOutput.java
+++ /dev/null
@@ -1,139 +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;
-
-/** Base implementation class for buffered {@link IndexOutput}. */
-public abstract class BufferedIndexOutput extends IndexOutput {
-  static final int BUFFER_SIZE = 16384;
-
-  private final byte[] buffer = new byte[BUFFER_SIZE];
-  private long bufferStart = 0;           // position in file of buffer
-  private int bufferPosition = 0;         // position in buffer
-
-  /** Writes a single byte.
-   * @see IndexInput#readByte()
-   */
-  @Override
-  public void writeByte(byte b) throws IOException {
-    if (bufferPosition >= BUFFER_SIZE)
-      flush();
-    buffer[bufferPosition++] = b;
-  }
-
-  /** Writes an array of bytes.
-   * @param b the bytes to write
-   * @param length the number of bytes to write
-   * @see IndexInput#readBytes(byte[],int,int)
-   */
-  @Override
-  public void writeBytes(byte[] b, int offset, int length) throws IOException {
-    int bytesLeft = BUFFER_SIZE - bufferPosition;
-    // is there enough space in the buffer?
-    if (bytesLeft >= length) {
-      // we add the data to the end of the buffer
-      System.arraycopy(b, offset, buffer, bufferPosition, length);
-      bufferPosition += length;
-      // if the buffer is full, flush it
-      if (BUFFER_SIZE - bufferPosition == 0)
-        flush();
-    } else {
-      // is data larger then buffer?
-      if (length > BUFFER_SIZE) {
-        // we flush the buffer
-        if (bufferPosition > 0)
-          flush();
-        // and write data at once
-        flushBuffer(b, offset, length);
-        bufferStart += length;
-      } else {
-        // we fill/flush the buffer (until the input is written)
-        int pos = 0; // position in the input data
-        int pieceLength;
-        while (pos < length) {
-          pieceLength = (length - pos < bytesLeft) ? length - pos : bytesLeft;
-          System.arraycopy(b, pos + offset, buffer, bufferPosition, pieceLength);
-          pos += pieceLength;
-          bufferPosition += pieceLength;
-          // if the buffer is full, flush it
-          bytesLeft = BUFFER_SIZE - bufferPosition;
-          if (bytesLeft == 0) {
-            flush();
-            bytesLeft = BUFFER_SIZE;
-          }
-        }
-      }
-    }
-  }
-
-  /** Forces any buffered output to be written. */
-  @Override
-  public void flush() throws IOException {
-    flushBuffer(buffer, bufferPosition);
-    bufferStart += bufferPosition;
-    bufferPosition = 0;
-  }
-
-  /** Expert: implements buffer write.  Writes bytes at the current position in
-   * the output.
-   * @param b the bytes to write
-   * @param len the number of bytes to write
-   */
-  private void flushBuffer(byte[] b, int len) throws IOException {
-    flushBuffer(b, 0, len);
-  }
-
-  /** Expert: implements buffer write.  Writes bytes at the current position in
-   * the output.
-   * @param b the bytes to write
-   * @param offset the offset in the byte array
-   * @param len the number of bytes to write
-   */
-  protected abstract void flushBuffer(byte[] b, int offset, int len) throws IOException;
-  
-  /** Closes this stream to further operations. */
-  @Override
-  public void close() throws IOException {
-    flush();
-  }
-
-  /** Returns the current position in this file, where the next write will
-   * occur.
-   * @see #seek(long)
-   */
-  @Override
-  public long getFilePointer() {
-    return bufferStart + bufferPosition;
-  }
-
-  /** Sets current position in this file, where the next write will occur.
-   * @see #getFilePointer()
-   */
-  @Override
-  public void seek(long pos) throws IOException {
-    flush();
-    bufferStart = pos;
-  }
-
-  /** The number of bytes in the file. */
-  @Override
-  public abstract long length() throws IOException;
-
-
-}