org.drools.mvel.parser.StreamProvider Maven / Gradle / Ivy
/* Generated by: ParserGeneratorCC: Do not edit this line. StreamProvider.java Version 1.1 */
/* ParserGeneratorCCOptions:KEEP_LINE_COLUMN=true */
/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2016 The JavaParser Team.
* Copyright 2019 Red Hat, Inc. and/or its affiliates.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser 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 Lesser General Public License for more details.
*
* Modified by Red Hat, Inc.
*/
package org.drools.mvel.parser;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
/**
* NOTE : This generated class can be safely deleted if installing in a GWT installation (use StringProvider instead)
*/
public class StreamProvider implements Provider {
private Reader _reader;
@Deprecated
public StreamProvider(final InputStream stream, final String charsetName) throws IOException {
this (new BufferedReader(new InputStreamReader(stream, charsetName)));
}
public StreamProvider(final InputStream stream, final java.nio.charset.Charset charset) {
this (new BufferedReader(new InputStreamReader(stream, charset)));
}
public StreamProvider(final Reader reader) {
_reader = reader;
}
public int read(final char[] aDest, final int nOfs, final int nLen) throws IOException {
int result = _reader.read(aDest, nOfs, nLen);
/* CBA -- Added 2014/03/29 --
This logic allows the generated Java code to be easily translated to C# (via sharpen) -
as in C# 0 represents end of file, and in Java, -1 represents end of file
See : http://msdn.microsoft.com/en-us/library/9kstw824(v=vs.110).aspx
** Technically, this is not required for java but the overhead is extremely low compared to the code generation benefits.
*/
if (result == 0)
if (nOfs < aDest.length && nLen > 0)
result = -1;
return result;
}
public void close() throws IOException {
_reader.close();
}
}
/* ParserGeneratorCC - OriginalChecksum=a21003ed051749d1e2e38e18fe29d1c7 (do not edit this line) */