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This module contains the Metro runtime code.
/*
* Copyright (c) 2005, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.stream.buffer;
/**
* Base class for classes that creates {@link MutableXMLStreamBuffer}
* and from infoset in API-specific form.
*/
public class AbstractCreator extends AbstractCreatorProcessor {
protected MutableXMLStreamBuffer _buffer;
public void setXMLStreamBuffer(MutableXMLStreamBuffer buffer) {
if (buffer == null) {
throw new NullPointerException("buffer cannot be null");
}
setBuffer(buffer);
}
public MutableXMLStreamBuffer getXMLStreamBuffer() {
return _buffer;
}
protected final void createBuffer() {
setBuffer(new MutableXMLStreamBuffer());
}
/**
* Should be called whenever a new tree is stored on the buffer.
*/
protected final void increaseTreeCount() {
_buffer.treeCount++;
}
protected final void setBuffer(MutableXMLStreamBuffer buffer) {
_buffer = buffer;
_currentStructureFragment = _buffer.getStructure();
_structure = _currentStructureFragment.getArray();
_structurePtr = 0;
_currentStructureStringFragment = _buffer.getStructureStrings();
_structureStrings = _currentStructureStringFragment.getArray();
_structureStringsPtr = 0;
_currentContentCharactersBufferFragment = _buffer.getContentCharactersBuffer();
_contentCharactersBuffer = _currentContentCharactersBufferFragment.getArray();
_contentCharactersBufferPtr = 0;
_currentContentObjectFragment = _buffer.getContentObjects();
_contentObjects = _currentContentObjectFragment.getArray();
_contentObjectsPtr = 0;
}
protected final void setHasInternedStrings(boolean hasInternedStrings) {
_buffer.setHasInternedStrings(hasInternedStrings);
}
protected final void storeStructure(int b) {
_structure[_structurePtr++] = (byte)b;
if (_structurePtr == _structure.length) {
resizeStructure();
}
}
protected final void resizeStructure() {
_structurePtr = 0;
if (_currentStructureFragment.getNext() != null) {
_currentStructureFragment = _currentStructureFragment.getNext();
_structure = _currentStructureFragment.getArray();
} else {
_structure = new byte[_structure.length];
_currentStructureFragment = new FragmentedArray(_structure, _currentStructureFragment);
}
}
protected final void storeStructureString(String s) {
_structureStrings[_structureStringsPtr++] = s;
if (_structureStringsPtr == _structureStrings.length) {
resizeStructureStrings();
}
}
protected final void resizeStructureStrings() {
_structureStringsPtr = 0;
if (_currentStructureStringFragment.getNext() != null) {
_currentStructureStringFragment = _currentStructureStringFragment.getNext();
_structureStrings = _currentStructureStringFragment.getArray();
} else {
_structureStrings = new String[_structureStrings.length];
_currentStructureStringFragment = new FragmentedArray(_structureStrings, _currentStructureStringFragment);
}
}
protected final void storeContentString(String s) {
storeContentObject(s);
}
protected final void storeContentCharacters(int type, char[] ch, int start, int length) {
if (_contentCharactersBufferPtr + length >= _contentCharactersBuffer.length) {
if (length >= 512) {
storeStructure(type | CONTENT_TYPE_CHAR_ARRAY_COPY);
storeContentCharactersCopy(ch, start, length);
return;
}
resizeContentCharacters();
}
if (length < CHAR_ARRAY_LENGTH_SMALL_SIZE) {
storeStructure(type);
storeStructure(length);
System.arraycopy(ch, start, _contentCharactersBuffer, _contentCharactersBufferPtr, length);
_contentCharactersBufferPtr += length;
} else if (length < CHAR_ARRAY_LENGTH_MEDIUM_SIZE) {
storeStructure(type | CHAR_ARRAY_LENGTH_MEDIUM);
storeStructure(length >> 8);
storeStructure(length & 255);
System.arraycopy(ch, start, _contentCharactersBuffer, _contentCharactersBufferPtr, length);
_contentCharactersBufferPtr += length;
} else {
storeStructure(type | CONTENT_TYPE_CHAR_ARRAY_COPY);
storeContentCharactersCopy(ch, start, length);
}
}
protected final void resizeContentCharacters() {
_contentCharactersBufferPtr = 0;
if (_currentContentCharactersBufferFragment.getNext() != null) {
_currentContentCharactersBufferFragment = _currentContentCharactersBufferFragment.getNext();
_contentCharactersBuffer = _currentContentCharactersBufferFragment.getArray();
} else {
_contentCharactersBuffer = new char[_contentCharactersBuffer.length];
_currentContentCharactersBufferFragment = new FragmentedArray(_contentCharactersBuffer,
_currentContentCharactersBufferFragment);
}
}
protected final void storeContentCharactersCopy(char[] ch, int start, int length) {
char[] copyOfCh = new char[length];
System.arraycopy(ch, start, copyOfCh, 0, length);
storeContentObject(copyOfCh);
}
protected final Object peekAtContentObject() {
return _contentObjects[_contentObjectsPtr];
}
protected final void storeContentObject(Object s) {
_contentObjects[_contentObjectsPtr++] = s;
if (_contentObjectsPtr == _contentObjects.length) {
resizeContentObjects();
}
}
protected final void resizeContentObjects() {
_contentObjectsPtr = 0;
if (_currentContentObjectFragment.getNext() != null) {
_currentContentObjectFragment = _currentContentObjectFragment.getNext();
_contentObjects = _currentContentObjectFragment.getArray();
} else {
_contentObjects = new Object[_contentObjects.length];
_currentContentObjectFragment = new FragmentedArray(_contentObjects, _currentContentObjectFragment);
}
}
}