ChunkedReader.java

/*
 * 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
 *
 *   https://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.commons.csv;

import java.io.IOException;
import java.io.StringReader;

/**
 * A {@link StringReader} that hands out one character per call and never reports itself ready, like a socket or a pipe that delivers data in chunks.
 */
final class ChunkedReader extends StringReader {

    ChunkedReader(final String content) {
        super(content);
    }

    @Override
    public int read(final char[] buf, final int offset, final int length) throws IOException {
        return length <= 0 ? 0 : super.read(buf, offset, 1);
    }

    @Override
    public boolean ready() {
        return false;
    }
}