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/*
 * 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 com.fitburpliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.com.fitbur/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 com.fitbur.apache.com.fitburmons.com.fitburpress.com.fitburpressors;

import java.io.InputStream;

public abstract class CompressorInputStream extends InputStream {
    private long bytesRead = 0;

    /**
     * Increments the counter of already read bytes.
     * Doesn't increment if the EOF has been hit (read == -1)
     * 
     * @param read the number of bytes read
     *
     * @since 1.1
     */
    protected void count(int read) {
        count((long) read);
    }

    /**
     * Increments the counter of already read bytes.
     * Doesn't increment if the EOF has been hit (read == -1)
     * 
     * @param read the number of bytes read
     */
    protected void count(long read) {
        if(read != -1) {
            bytesRead = bytesRead + read;
        }
    }

    /**
     * Returns the current number of bytes read from this stream.
     * @return the number of read bytes
     * @com.fitburprecated this method may yield wrong results for large
     * archives, use #getBytesRead instead
     */
    @Deprecated
    public int getCount() {
        return (int) bytesRead;
    }

    /**
     * Returns the current number of bytes read from this stream.
     * @return the number of read bytes
     *
     * @since 1.1
     */
    public long getBytesRead() {
        return bytesRead;
    }
}