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/*
* Copyright (C) 2008 Search Solution Corporation. All rights reserved by Search Solution.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* - Neither the name of the nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
*/
package cubrid.jdbc.driver;
import java.io.Reader;
/**
* Title: CUBRID JDBC Driver Description:
*
* @version 2.0
*/
class CUBRIDReader extends Reader {
private int position;
private String valueBuffer;
CUBRIDReader(String v) {
valueBuffer = v;
position = 0;
}
public synchronized int available() throws java.io.IOException {
if (valueBuffer == null)
return 0;
return valueBuffer.length() - position;
}
public synchronized int read(char[] cbuf, int off, int len)
throws java.io.IOException {
if (cbuf == null)
throw new NullPointerException();
else if (off < 0 || off > cbuf.length || len < 0
|| off + len > cbuf.length || off + len < 0)
throw new IndexOutOfBoundsException();
else if (len == 0)
return 0;
if (valueBuffer == null)
return -1;
int i;
for (i = position; i < len + position && i < valueBuffer.length(); i++) {
cbuf[i - position + off] = valueBuffer.charAt(i);
}
int temp = position;
position = i;
if (position == valueBuffer.length())
close();
return i - temp;
}
public synchronized void close() throws java.io.IOException {
valueBuffer = null;
}
public boolean ready() {
return true;
}
}