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/*
* 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 4071765
@summary Bug in the parameter of str.getChars called in write
*/
import java.io.*;
public class WriteFromString {
public static void main(String argv[]) throws Exception {
LocalStringWriter lsw = new LocalStringWriter();
boolean result = true;
String testString = "Testing of what gets written";
// Should write out at offset 2 for length 4 i.e."stin"
lsw.write(testString, 1, 4);
String res = lsw.toString();
if (!res.equals("esti")) {
result = false;
System.err.println("Writer.write is incorrect:" + res);
}
// Same bug in stringwriter as well
StringWriter sw = new StringWriter();
sw.write(testString, 1, 4);
res = sw.toString();
String ss = testString.substring(1,4);
System.out.println("Substring = "+ss);
if (!res.equals("esti")) {
System.err.println("StringWriter.write is incorrect:" + res);
result = false;
}
if (!result) {
throw new Exception("Writer.write method is incorrect.");
}
}
}
/**
* A copy of StringWriter to test the write method in Writer
*/
class LocalStringWriter extends Writer {
private StringBuffer buf;
/**
* Create a new string writer, using the default initial string-buffer
* size.
*/
public LocalStringWriter() {
buf = new StringBuffer();
lock = buf;
}
/**
* Write a portion of an array of characters.
*
* @param cbuf Array of characters
* @param off Offset from which to start writing characters
* @param len Number of characters to write
*/
public void write(char cbuf[], int off, int len) {
if ((off < 0) || (off > cbuf.length) || (len < 0) ||
((off + len) > cbuf.length) || ((off + len) < 0)) {
throw new IndexOutOfBoundsException();
} else if (len == 0) {
return;
}
buf.append(cbuf, off, len);
}
/**
* Write a string.
*/
public void write(String str) {
buf.append(str);
}
/**
* Return the buffer's current value as a string.
*/
public String toString() {
return buf.toString();
}
public void flush(){ }
public void close(){ }
}
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