+++ /dev/null
-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.HashMap;
-
-import org.apache.lucene.util.LuceneTestCase;
-
-/** Test huge RAMFile with more than Integer.MAX_VALUE bytes. */
-public class TestHugeRamFile extends LuceneTestCase {
-
- private static final long MAX_VALUE = (long) 2 * (long) Integer.MAX_VALUE;
-
- /** Fake a huge ram file by using the same byte buffer for all
- * buffers under maxint. */
- private static class DenseRAMFile extends RAMFile {
- private long capacity = 0;
- private HashMap<Integer,byte[]> singleBuffers = new HashMap<Integer,byte[]>();
- @Override
- protected byte[] newBuffer(int size) {
- capacity += size;
- if (capacity <= MAX_VALUE) {
- // below maxint we reuse buffers
- byte buf[] = singleBuffers.get(Integer.valueOf(size));
- if (buf==null) {
- buf = new byte[size];
- //System.out.println("allocate: "+size);
- singleBuffers.put(Integer.valueOf(size),buf);
- }
- return buf;
- }
- //System.out.println("allocate: "+size); System.out.flush();
- return new byte[size];
- }
- }
-
- /** Test huge RAMFile with more than Integer.MAX_VALUE bytes. (LUCENE-957) */
- public void testHugeFile() throws IOException {
- DenseRAMFile f = new DenseRAMFile();
- // output part
- RAMOutputStream out = new RAMOutputStream(f);
- byte b1[] = new byte[RAMOutputStream.BUFFER_SIZE];
- byte b2[] = new byte[RAMOutputStream.BUFFER_SIZE / 3];
- for (int i = 0; i < b1.length; i++) {
- b1[i] = (byte) (i & 0x0007F);
- }
- for (int i = 0; i < b2.length; i++) {
- b2[i] = (byte) (i & 0x0003F);
- }
- long n = 0;
- assertEquals("output length must match",n,out.length());
- while (n <= MAX_VALUE - b1.length) {
- out.writeBytes(b1,0,b1.length);
- out.flush();
- n += b1.length;
- assertEquals("output length must match",n,out.length());
- }
- //System.out.println("after writing b1's, length = "+out.length()+" (MAX_VALUE="+MAX_VALUE+")");
- int m = b2.length;
- long L = 12;
- for (int j=0; j<L; j++) {
- for (int i = 0; i < b2.length; i++) {
- b2[i]++;
- }
- out.writeBytes(b2,0,m);
- out.flush();
- n += m;
- assertEquals("output length must match",n,out.length());
- }
- out.close();
- // input part
- RAMInputStream in = new RAMInputStream(f);
- assertEquals("input length must match",n,in.length());
- //System.out.println("input length = "+in.length()+" % 1024 = "+in.length()%1024);
- for (int j=0; j<L; j++) {
- long loc = n - (L-j)*m;
- in.seek(loc/3);
- in.seek(loc);
- for (int i=0; i<m; i++) {
- byte bt = in.readByte();
- byte expected = (byte) (1 + j + (i & 0x0003F));
- assertEquals("must read same value that was written! j="+j+" i="+i,expected,bt);
- }
- }
- }
-}