| /* |
| |
| Derby - Class org.apache.derbyTesting.functionTests.tests.jdbcapi.DummyReader |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| */ |
| package org.apache.derbyTesting.functionTests.tests.jdbcapi; |
| |
| import java.io.Reader; |
| |
| public class DummyReader extends Reader |
| { |
| private int _idx = 0; |
| private int _readerLength; |
| private static final String _chars = " abcdefghijklmnopqrstuvwxyz "; |
| |
| public DummyReader( int readerLength ) |
| { |
| _readerLength = readerLength; |
| } |
| |
| public void close() {} |
| |
| public int read( char[] buffer, int offset, int length ) |
| { |
| if ( _idx >= _readerLength ) { return -1; } |
| |
| for ( int i = 0; i < length; i++ ) |
| { |
| if ( _idx >= _readerLength ) |
| { |
| return i; |
| } |
| else |
| { |
| buffer[ offset + i ] = value( _idx++ ); |
| } |
| } |
| |
| return length; |
| } |
| private char value( int raw ) |
| { |
| return _chars.charAt( raw % _chars.length() ); |
| } |
| |
| public String toString() |
| { |
| char[] buffer = new char[ _readerLength ]; |
| |
| for ( int i = 0; i < _readerLength; i++ ) { buffer[ i ] = value( i ); } |
| |
| return new String( buffer ); |
| } |
| } |
| |