X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ByteArrayDataInput.java?ds=sidebyside diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ByteArrayDataInput.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ByteArrayDataInput.java deleted file mode 100644 index 2ebdf89..0000000 --- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/ByteArrayDataInput.java +++ /dev/null @@ -1,132 +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 org.apache.lucene.util.BytesRef; - -/** @lucene.experimental */ -public final class ByteArrayDataInput extends DataInput { - - private byte[] bytes; - - private int pos; - private int limit; - - public ByteArrayDataInput(byte[] bytes) { - reset(bytes); - } - - public ByteArrayDataInput(byte[] bytes, int offset, int len) { - reset(bytes, offset, len); - } - - public ByteArrayDataInput() { - reset(BytesRef.EMPTY_BYTES); - } - - public void reset(byte[] bytes) { - reset(bytes, 0, bytes.length); - } - - public int getPosition() { - return pos; - } - - public void reset(byte[] bytes, int offset, int len) { - this.bytes = bytes; - pos = offset; - limit = offset + len; - } - - public boolean eof() { - return pos == limit; - } - - public void skipBytes(int count) { - pos += count; - assert pos <= limit; - } - - @Override - public short readShort() { - return (short) (((bytes[pos++] & 0xFF) << 8) | (bytes[pos++] & 0xFF)); - } - - @Override - public int readInt() { - assert pos+4 <= limit; - return ((bytes[pos++] & 0xFF) << 24) | ((bytes[pos++] & 0xFF) << 16) - | ((bytes[pos++] & 0xFF) << 8) | (bytes[pos++] & 0xFF); - } - - @Override - public long readLong() { - assert pos+8 <= limit; - final int i1 = ((bytes[pos++] & 0xff) << 24) | ((bytes[pos++] & 0xff) << 16) | - ((bytes[pos++] & 0xff) << 8) | (bytes[pos++] & 0xff); - final int i2 = ((bytes[pos++] & 0xff) << 24) | ((bytes[pos++] & 0xff) << 16) | - ((bytes[pos++] & 0xff) << 8) | (bytes[pos++] & 0xff); - return (((long)i1) << 32) | (i2 & 0xFFFFFFFFL); - } - - @Override - public int readVInt() { - checkBounds(); - byte b = bytes[pos++]; - int i = b & 0x7F; - for (int shift = 7; (b & 0x80) != 0; shift += 7) { - checkBounds(); - b = bytes[pos++]; - i |= (b & 0x7F) << shift; - } - return i; - } - - @Override - public long readVLong() { - checkBounds(); - byte b = bytes[pos++]; - long i = b & 0x7F; - for (int shift = 7; (b & 0x80) != 0; shift += 7) { - checkBounds(); - b = bytes[pos++]; - i |= (b & 0x7FL) << shift; - } - return i; - } - - // NOTE: AIOOBE not EOF if you read too much - @Override - public byte readByte() { - checkBounds(); - return bytes[pos++]; - } - - // NOTE: AIOOBE not EOF if you read too much - @Override - public void readBytes(byte[] b, int offset, int len) { - assert pos + len <= limit; - System.arraycopy(bytes, pos, b, offset, len); - pos += len; - } - - private boolean checkBounds() { - assert pos < limit; - return true; - } -}