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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2014 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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* If you wish your version of this file to be governed by only the CDDL or
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* elects to include this software in this distribution under the [CDDL or GPL
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* recipient has the option to distribute your version of this file under
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* and therefore, elected the GPL Version 2 license, then the option applies
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*/
package com.pdd.pop.ext.glassfish.grizzly.memory;
import com.pdd.pop.ext.glassfish.grizzly.Buffer;
/**
*
* @author Alexey Stashok
*/
public abstract class CompositeBuffer implements Buffer {
/**
* The order in which internal {@link Buffer}s will be disposed.
*/
public enum DisposeOrder {
LAST_TO_FIRST, FIRST_TO_LAST
}
protected DisposeOrder disposeOrder = DisposeOrder.LAST_TO_FIRST;
/**
* Construct CompositeBuffer.
* @return new CompositeBuffer
*/
public static CompositeBuffer newBuffer() {
return BuffersBuffer.create();
}
public static CompositeBuffer newBuffer(final MemoryManager memoryManager) {
return BuffersBuffer.create(memoryManager);
}
public static CompositeBuffer newBuffer(final MemoryManager memoryManager,
final Buffer... buffers) {
return BuffersBuffer.create(memoryManager, buffers);
}
public static CompositeBuffer newBuffer(final MemoryManager memoryManager,
final Buffer[] buffers, final boolean isReadOnly) {
return BuffersBuffer.create(memoryManager, buffers, isReadOnly);
}
/**
* Returns the order in which internal {@link Buffer}s will be disposed.
* @return {@link DisposeOrder}
*/
public DisposeOrder disposeOrder() {
return disposeOrder;
}
/**
* Sets the order in which internal {@link Buffer}s will be disposed.
* @param disposeOrder
* @return this buffer
*/
public CompositeBuffer disposeOrder(final DisposeOrder disposeOrder) {
this.disposeOrder = disposeOrder;
return this;
}
public abstract CompositeBuffer append(Buffer buffer);
@Override
public abstract CompositeBuffer prepend(Buffer buffer);
@Override
public abstract Object[] underlying();
/**
* Removes underlying {@link Buffer}s, without disposing
*/
public abstract void removeAll();
public abstract void allowInternalBuffersDispose(boolean allow);
public abstract boolean allowInternalBuffersDispose();
/**
* Iterates over {@link Buffer} bytes from {@link #position()} to {@link #limit()}
* and lets {@link BulkOperation} examine/change the buffer content;
*
* @param operation {@link BulkOperation}
* @return Buffer position the processing was stopped on, or -1,
* if processing reached the limit.
*/
public abstract int bulk(BulkOperation operation);
/**
* Iterates over {@link Buffer} bytes from position to limit
* and lets {@link BulkOperation} examine/change the buffer content;
*
* @param operation {@link BulkOperation}
* @return Buffer position the processing was stopped on, or -1,
* if processing reached the limit.
*/
public abstract int bulk(BulkOperation operation, int position, int limit);
/**
* Replace one internal {@link Buffer} with another one.
* @param oldBuffer the {@link Buffer} to replace.
* @param newBuffer the new {@link Buffer}.
* @return true, if the oldBuffer was found and replaced, or
* false otherwise.
*/
public abstract boolean replace(Buffer oldBuffer, Buffer newBuffer);
/**
* Bulk Buffer operation, responsible for byte-by-byte Buffer processing.
*/
public interface BulkOperation {
/**
* Method is responsible to examine/change one single Buffer's byte.
* @param setter {@link Setter}
* @return true, if we want bulk processing stop, or false
* to continue processing.
*/
boolean processByte(byte value, Setter setter);
}
/**
* Setter.
*/
public interface Setter {
/**
* Set the current byte value.
* @param value value
*/
void set(byte value);
}
}
