pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / facet / src / java / org / apache / lucene / util / UnsafeByteArrayInputStream.java

diff --git a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/util/UnsafeByteArrayInputStream.java b/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/util/UnsafeByteArrayInputStream.java
deleted file mode 100644 (file)
index 1642b62..0000000
--- a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/util/UnsafeByteArrayInputStream.java
+++ /dev/null
@@ -1,147 +0,0 @@
-package org.apache.lucene.util;
-
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-/**
- * 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.
- */
-
-/**
- * This class, much like {@link ByteArrayInputStream} uses a given buffer as a
- * source of an InputStream. Unlike ByteArrayInputStream, this class does not
- * "waste" memory by creating a local copy of the given buffer, but rather uses
- * the given buffer as is. Hence the name Unsafe. While using this class one
- * should remember that the byte[] buffer memory is shared and might be changed
- * from outside.
- * 
- * For reuse-ability, a call for {@link #reInit(byte[])} can be called, and
- * initialize the stream with a new buffer.
- * 
- * @lucene.experimental
- */
-public class UnsafeByteArrayInputStream extends InputStream {
-
-  private byte[] buffer;
-  private int markIndex;
-  private int upperLimit;
-  private int index;
-
-  /**
-   * Creates a new instance by not using any byte[] up front. If you use this
-   * constructor, you MUST call either of the {@link #reInit(byte[]) reInit}
-   * methods before you consume any byte from this instance.<br>
-   * This constructor is for convenience purposes only, so that if one does not
-   * have the byte[] at the moment of creation, one is not forced to pass a
-   * <code>new byte[0]</code> or something. Obviously in that case, one will
-   * call either {@link #reInit(byte[]) reInit} methods before using the class.
-   */
-  public UnsafeByteArrayInputStream() {
-    markIndex = upperLimit = index = 0;
-  }
-
-  /**
-   * Creates an UnsafeByteArrayInputStream which uses a given byte array as
-   * the source of the stream. Default range is [0 , buffer.length)
-   * 
-   * @param buffer
-   *            byte array used as the source of this stream
-   */
-  public UnsafeByteArrayInputStream(byte[] buffer) {
-    reInit(buffer, 0, buffer.length);
-  }
-
-  /**
-   * Creates an UnsafeByteArrayInputStream which uses a given byte array as
-   * the source of the stream, at the specific range: [startPos, endPos)
-   * 
-   * @param buffer
-   *            byte array used as the source of this stream
-   * @param startPos
-   *            first index (inclusive) to the data lying in the given buffer
-   * @param endPos
-   *            an index (exclusive) where the data ends. data @
-   *            buffer[endPos] will never be read
-   */
-  public UnsafeByteArrayInputStream(byte[] buffer, int startPos, int endPos) {
-    reInit(buffer, startPos, endPos);
-  }
-
-  @Override
-  public void mark(int readlimit) {
-    markIndex = index;
-  }
-
-  @Override
-  public boolean markSupported() {
-    return true;
-  }
-
-  /**
-   * Initialize the stream with a given buffer, using the default limits of
-   * [0, buffer.length)
-   * 
-   * @param buffer
-   *            byte array used as the source of this stream
-   */
-  public void reInit(byte[] buffer) {
-    reInit(buffer, 0, buffer.length);
-  }
-
-  /**
-   * Initialize the stream with a given byte array as the source of the
-   * stream, at the specific range: [startPos, endPos)
-   * 
-   * @param buffer
-   *            byte array used as the source of this stream
-   * @param startPos
-   *            first index (inclusive) to the data lying in the given buffer
-   * @param endPos
-   *            an index (exclusive) where the data ends. data @
-   *            buffer[endPos] will never be read
-   */
-  public void reInit(byte[] buffer, int startPos, int endPos) {
-    this.buffer = buffer;
-    markIndex = startPos;
-    upperLimit = endPos;
-    index = markIndex;
-  }
-
-  @Override
-  public int available() throws IOException {
-    return upperLimit - index;
-  }
-
-  /**
-   * Read a byte. Data returned as an integer [0,255] If end of stream
-   * reached, returns -1
-   */
-  @Override
-  public int read() throws IOException {
-    return index < upperLimit ? buffer[index++] & 0xff : -1;
-  }
-
-  /**
-   * Resets the stream back to its original state. Basically - moving the
-   * index back to start position.
-   */
-  @Override
-  public void reset() throws IOException {
-    index = markIndex;
-  }
-
-}