| /* |
| * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| @bug 4092350 |
| @summary Verify that reads and writes of primitives are correct |
| */ |
| |
| // The bug mentioned is actually a performance bug that prompted |
| // changes in the methods to write primitives |
| import java.io.*; |
| |
| import java.io.*; |
| |
| public class ReadWritePrimitives { |
| |
| public static void main(String args[]) throws IOException { |
| long start, finish; |
| start = System.currentTimeMillis(); |
| testShort(); |
| finish = System.currentTimeMillis(); |
| // System.err.println("Time taken="+(finish-start)); |
| start = System.currentTimeMillis(); |
| testChar(); |
| finish = System.currentTimeMillis(); |
| // System.err.println("Time taken="+(finish-start)); |
| start = System.currentTimeMillis(); |
| testInt(); |
| finish = System.currentTimeMillis(); |
| // System.err.println("Time taken="+(finish-start)); |
| start = System.currentTimeMillis(); |
| testLong(); |
| finish = System.currentTimeMillis(); |
| // System.err.println("Time taken="+(finish-start)); |
| } |
| |
| private static void testShort() throws IOException { |
| File fh = new File(System.getProperty("test.dir", "."), |
| "x.ReadWriteGenerated"); |
| RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| for(int i = 0; i < 10000; i++){ |
| f.writeShort((short)i); |
| } |
| f.writeShort((short)65535); |
| f.close(); |
| f = new RandomAccessFile(fh,"r"); |
| for(int i = 0; i < 10000; i++) { |
| short r = f.readShort(); |
| if (r != ((short)i)) { |
| System.err.println("An error occurred. Read:" + r |
| + " i:" + ((short)i)); |
| throw new IOException("Bad read from a writeShort"); |
| } |
| } |
| short rmax = f.readShort(); |
| if (rmax != ((short)65535)) { |
| System.err.println("An error occurred. Read:" + rmax); |
| throw new IOException("Bad read from a writeShort"); |
| } |
| f.close(); |
| } |
| |
| private static void testChar() throws IOException { |
| File fh = new File(System.getProperty("test.dir", "."), |
| "x.ReadWriteGenerated"); |
| RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| for(int i = 0; i < 10000; i++){ |
| f.writeChar((char)i); |
| } |
| f.close(); |
| f = new RandomAccessFile(fh,"r"); |
| for(int i = 0; i < 10000; i++) { |
| char r = f.readChar(); |
| if (r != ((char)i)){ |
| System.err.println("An error occurred. Read:" + r |
| + " i:" + ((char) i)); |
| throw new IOException("Bad read from a writeChar"); |
| } |
| } |
| f.close(); |
| } |
| |
| |
| private static void testInt() throws IOException { |
| File fh = new File(System.getProperty("test.dir", "."), |
| "x.ReadWriteGenerated"); |
| RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| for(int i = 0; i < 10000; i++){ |
| f.writeInt((short)i); |
| } |
| f.writeInt(Integer.MAX_VALUE); |
| f.close(); |
| f = new RandomAccessFile(fh, "r"); |
| for(int i = 0; i < 10000; i++) { |
| int r = f.readInt(); |
| if (r != i){ |
| System.err.println("An error occurred. Read:" + r |
| + " i:" + i); |
| throw new IOException("Bad read from a writeInt"); |
| } |
| } |
| int rmax = f.readInt(); |
| if (rmax != Integer.MAX_VALUE){ |
| System.err.println("An error occurred. Read:" + rmax); |
| throw new IOException("Bad read from a writeInt"); |
| } |
| f.close(); |
| } |
| |
| private static void testLong() throws IOException { |
| File fh = new File(System.getProperty("test.dir", "."), |
| "x.ReadWriteGenerated"); |
| RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| for(int i = 0; i < 10000; i++){ |
| f.writeLong(123456789L * (long)i); |
| } |
| f.close(); |
| f = new RandomAccessFile(fh,"r"); |
| for(int i = 0; i < 10000; i++){ |
| long r = f.readLong(); |
| if (r != (((long) i) * 123456789L) ) { |
| System.err.println("An error occurred. Read:" + r |
| + " i" + ((long) i)); |
| |
| throw new IOException("Bad read from a writeInt"); |
| } |
| } |
| f.close(); |
| |
| } |
| |
| } |