283 lines
10 KiB
Java
283 lines
10 KiB
Java
/*
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* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 4181483
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* @summary Test if DataInputStream methods will check if the stream
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* has been closed.
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*/
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import java.io.*;
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public enum OpsAfterClose {
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READ { boolean check(DataInputStream is) {
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try {
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int read = is.read();
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System.out.println("read returns: " + read);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_BUF { boolean check(DataInputStream is) {
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try {
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byte buf[] = new byte[2];
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int read = is.read(buf);
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System.out.println("read(buf) returns: " + read);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_BUF_OFF { boolean check(DataInputStream is) {
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try {
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byte buf[] = new byte[2];
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int len = 1;
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int read = is.read(buf, 0, len);
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System.out.println("read(buf, 0, len) returns: " + read);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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AVAILABLE { boolean check(DataInputStream is) {
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try {
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int avail = is.available();
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System.out.println("available() returns: " + avail);
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return false;
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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} },
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SKIP { boolean check(DataInputStream is) {
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try {
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long skipped = is.skip(1);
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System.out.println("skip() returns: " + skipped);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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MARK { boolean check(DataInputStream is) {
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is.mark(20);
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return true;
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} },
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RESET { boolean check(DataInputStream is) {
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try {
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is.reset();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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MARK_SUPPORTED { boolean check(DataInputStream is) {
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is.markSupported();
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return true;
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} },
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CLOSE { boolean check(DataInputStream is) {
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try {
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is.close();
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return true; // No Exception thrown on windows
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true; // Exception thrown on solaris and linux
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}
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}},
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READ_BYTE { boolean check(DataInputStream is) {
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try {
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is.readByte();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_CHAR { boolean check(DataInputStream is) {
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try {
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is.readChar();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_DOUBLE { boolean check(DataInputStream is) {
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try {
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is.readDouble();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_FLOAT { boolean check(DataInputStream is) {
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try {
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is.readFloat();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_INT { boolean check(DataInputStream is) {
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try {
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is.readInt();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_LONG { boolean check(DataInputStream is) {
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try {
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is.readLong();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_SHORT { boolean check(DataInputStream is) {
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try {
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is.readShort();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_UnsignedByte { boolean check(DataInputStream is) {
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try {
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is.readUnsignedByte();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_UnsignedShort { boolean check(DataInputStream is) {
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try {
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is.readUnsignedShort();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_UTF { boolean check(DataInputStream is) {
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try {
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is.readUTF();
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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SKIP_BYTES { boolean check(DataInputStream is) {
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try {
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is.skipBytes(1);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_FULLY { boolean check(DataInputStream is) {
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try {
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is.readFully(new byte[1]);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} },
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READ_FULLY_BUF { boolean check(DataInputStream is) {
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try {
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is.readFully(new byte[1], 0, 1);
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} catch (IOException io) {
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System.out.print("Excep Msg: "+ io.getMessage() + ", ");
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return true;
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}
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return false;
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} };
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abstract boolean check(DataInputStream is);
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public static void main(String args[]) throws Exception {
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boolean failed = false;
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File f = new File(System.getProperty("test.dir", "."),
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"f.txt");
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f.createNewFile();
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f.deleteOnExit();
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FileInputStream fis = new FileInputStream(f);
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try {
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DataInputStream dis = new DataInputStream(
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new FileInputStream(f));
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try {
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if (testDataInputStream(dis)) {
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failed = true;
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}
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} finally {
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dis.close();
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}
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} finally {
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fis.close();
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}
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}
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private static boolean testDataInputStream(DataInputStream is)
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throws Exception {
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is.close();
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boolean failed = false;
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boolean result;
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System.out.println("Testing :" + is);
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for (OpsAfterClose op : OpsAfterClose.values()) {
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result = op.check(is);
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if (!result) {
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failed = true;
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}
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System.out.println(op + ":" + result);
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}
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if (failed) {
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System.out.println("Test failed for the failed operation{s}" +
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" above for :" + is);
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}
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return failed;
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}
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}
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