org.craft.atom.io.AbstractIoChannel Maven / Gradle / Ivy

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package org.craft.atom.io;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

/**
 * Base implementation class for common io concept of channel
 * 
 * @author mindwind
 * @version 1.0, Feb 22, 2013
 */
@ToString(callSuper = true, of = {})
public abstract class AbstractIoChannel extends AbstractChannel {

	
	@Getter @Setter protected long lastIoTime           = System.currentTimeMillis()                   ;
	@Getter         protected int minReadBufferSize     = IoConfig.MIN_READ_BUFFER_SIZE                ;
	@Getter         protected int defaultReadBufferSize = IoConfig.DEFAULT_READ_BUFFER_SIZE            ;
	@Getter         protected int maxReadBufferSize     = IoConfig.MAX_READ_BUFFER_SIZE                ;
	@Getter         protected int maxWriteBufferSize    = maxReadBufferSize + (maxReadBufferSize >>> 1);
	
	
	// ~ -----------------------------------------------------------------------------------------------------------
	
	
	public AbstractIoChannel() {
		super();
	}

	public AbstractIoChannel(long id) {
		super(id);
	}
	
	public AbstractIoChannel(int minReadBufferSize) {
		super();
		this.minReadBufferSize = minReadBufferSize;
	}
	
	public AbstractIoChannel(int minReadBufferSize, int defaultReadBufferSize) {
		super();
		this.minReadBufferSize     = minReadBufferSize    ;
		this.defaultReadBufferSize = defaultReadBufferSize;
	}
	
	public AbstractIoChannel(int minReadBufferSize, int defaultReadBufferSize, int maxReadBufferSize) {
		super();
		this.minReadBufferSize     = minReadBufferSize    ;
		this.defaultReadBufferSize = defaultReadBufferSize;
		this.maxReadBufferSize     = maxReadBufferSize    ;
	}
	
	public AbstractIoChannel(long lastIoTime, int minReadBufferSize, int defaultReadBufferSize, int maxReadBufferSize, int maxWriteBufferSize) {
		super();
		this.lastIoTime            = lastIoTime           ;
		this.minReadBufferSize     = minReadBufferSize    ;
		this.defaultReadBufferSize = defaultReadBufferSize;
		this.maxReadBufferSize     = maxReadBufferSize    ;
		this.maxWriteBufferSize    = maxWriteBufferSize   ;
	}

	// ~ -----------------------------------------------------------------------------------------------------------
	

	public void setMinReadBufferSize(int minReadBufferSize) {
		if (minReadBufferSize <= 0) {
            throw new IllegalArgumentException("minReadBufferSize: " + minReadBufferSize + " (expected: 1+)");
        }
		
        if (minReadBufferSize > defaultReadBufferSize ) {
            throw new IllegalArgumentException("minReadBufferSize: " + minReadBufferSize + " (expected: smaller than " + defaultReadBufferSize + ')');
        }
        
		this.minReadBufferSize = minReadBufferSize;
	}

	public void setDefaultReadBufferSize(int defaultReadBufferSize) {
		if (defaultReadBufferSize < minReadBufferSize) {
			defaultReadBufferSize = this.minReadBufferSize;
		}
		
		if (defaultReadBufferSize > maxReadBufferSize) {
			defaultReadBufferSize = this.maxReadBufferSize;
		}
		
		this.defaultReadBufferSize = defaultReadBufferSize;
	}

	public void setMaxReadBufferSize(int maxReadBufferSize) {
		if (maxReadBufferSize <= 0) {
			throw new IllegalArgumentException("maxReadBufferSize: " + maxReadBufferSize + " (expected: > 1)");
		}
		
		if (maxReadBufferSize < defaultReadBufferSize) {
            throw new IllegalArgumentException("maxReadBufferSize: " + maxReadBufferSize + " (expected: greater than " + defaultReadBufferSize + ')');
        }
		
		this.maxReadBufferSize = maxReadBufferSize;
	}

	public void setMaxWriteBufferSize(int maxWriteBufferSize) {
		if (maxWriteBufferSize < maxReadBufferSize) {
			maxWriteBufferSize = maxReadBufferSize;
		}
		
		this.maxWriteBufferSize = maxWriteBufferSize;
	}
	
}