| /* |
| * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.stream.buffer; |
| |
| /** |
| * Base class for classes that processes {@link XMLStreamBuffer} |
| * and produces infoset in API-specific form. |
| */ |
| public abstract class AbstractProcessor extends AbstractCreatorProcessor { |
| protected static final int STATE_ILLEGAL = 0; |
| |
| protected static final int STATE_DOCUMENT = 1; |
| protected static final int STATE_DOCUMENT_FRAGMENT = 2; |
| protected static final int STATE_ELEMENT_U_LN_QN = 3; |
| protected static final int STATE_ELEMENT_P_U_LN = 4; |
| protected static final int STATE_ELEMENT_U_LN = 5; |
| protected static final int STATE_ELEMENT_LN = 6; |
| protected static final int STATE_TEXT_AS_CHAR_ARRAY_SMALL = 7; |
| protected static final int STATE_TEXT_AS_CHAR_ARRAY_MEDIUM = 8; |
| protected static final int STATE_TEXT_AS_CHAR_ARRAY_COPY = 9; |
| protected static final int STATE_TEXT_AS_STRING = 10; |
| protected static final int STATE_TEXT_AS_OBJECT = 11; |
| protected static final int STATE_COMMENT_AS_CHAR_ARRAY_SMALL = 12; |
| protected static final int STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM = 13; |
| protected static final int STATE_COMMENT_AS_CHAR_ARRAY_COPY = 14; |
| protected static final int STATE_COMMENT_AS_STRING = 15; |
| protected static final int STATE_PROCESSING_INSTRUCTION = 16; |
| protected static final int STATE_END = 17; |
| private static final int[] _eiiStateTable = new int[256]; |
| |
| protected static final int STATE_NAMESPACE_ATTRIBUTE = 1; |
| protected static final int STATE_NAMESPACE_ATTRIBUTE_P = 2; |
| protected static final int STATE_NAMESPACE_ATTRIBUTE_P_U = 3; |
| protected static final int STATE_NAMESPACE_ATTRIBUTE_U = 4; |
| private static final int[] _niiStateTable = new int[256]; |
| |
| protected static final int STATE_ATTRIBUTE_U_LN_QN = 1; |
| protected static final int STATE_ATTRIBUTE_P_U_LN = 2; |
| protected static final int STATE_ATTRIBUTE_U_LN = 3; |
| protected static final int STATE_ATTRIBUTE_LN = 4; |
| protected static final int STATE_ATTRIBUTE_U_LN_QN_OBJECT = 5; |
| protected static final int STATE_ATTRIBUTE_P_U_LN_OBJECT = 6; |
| protected static final int STATE_ATTRIBUTE_U_LN_OBJECT = 7; |
| protected static final int STATE_ATTRIBUTE_LN_OBJECT = 8; |
| private static final int[] _aiiStateTable = new int[256]; |
| |
| static { |
| /* |
| * Create a state table from information items and options. |
| * The swtich statement using such states will often generate a more |
| * efficient byte code representation that can be hotspotted using |
| * jump tables. |
| */ |
| _eiiStateTable[T_DOCUMENT] = STATE_DOCUMENT; |
| _eiiStateTable[T_DOCUMENT_FRAGMENT] = STATE_DOCUMENT_FRAGMENT; |
| _eiiStateTable[T_ELEMENT_U_LN_QN] = STATE_ELEMENT_U_LN_QN; |
| _eiiStateTable[T_ELEMENT_P_U_LN] = STATE_ELEMENT_P_U_LN; |
| _eiiStateTable[T_ELEMENT_U_LN] = STATE_ELEMENT_U_LN; |
| _eiiStateTable[T_ELEMENT_LN] = STATE_ELEMENT_LN; |
| _eiiStateTable[T_TEXT_AS_CHAR_ARRAY_SMALL] = STATE_TEXT_AS_CHAR_ARRAY_SMALL; |
| _eiiStateTable[T_TEXT_AS_CHAR_ARRAY_MEDIUM] = STATE_TEXT_AS_CHAR_ARRAY_MEDIUM; |
| _eiiStateTable[T_TEXT_AS_CHAR_ARRAY_COPY] = STATE_TEXT_AS_CHAR_ARRAY_COPY; |
| _eiiStateTable[T_TEXT_AS_STRING] = STATE_TEXT_AS_STRING; |
| _eiiStateTable[T_TEXT_AS_OBJECT] = STATE_TEXT_AS_OBJECT; |
| _eiiStateTable[T_COMMENT_AS_CHAR_ARRAY_SMALL] = STATE_COMMENT_AS_CHAR_ARRAY_SMALL; |
| _eiiStateTable[T_COMMENT_AS_CHAR_ARRAY_MEDIUM] = STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM; |
| _eiiStateTable[T_COMMENT_AS_CHAR_ARRAY_COPY] = STATE_COMMENT_AS_CHAR_ARRAY_COPY; |
| _eiiStateTable[T_COMMENT_AS_STRING] = STATE_COMMENT_AS_STRING; |
| _eiiStateTable[T_PROCESSING_INSTRUCTION] = STATE_PROCESSING_INSTRUCTION; |
| _eiiStateTable[T_END] = STATE_END; |
| |
| _niiStateTable[T_NAMESPACE_ATTRIBUTE] = STATE_NAMESPACE_ATTRIBUTE; |
| _niiStateTable[T_NAMESPACE_ATTRIBUTE_P] = STATE_NAMESPACE_ATTRIBUTE_P; |
| _niiStateTable[T_NAMESPACE_ATTRIBUTE_P_U] = STATE_NAMESPACE_ATTRIBUTE_P_U; |
| _niiStateTable[T_NAMESPACE_ATTRIBUTE_U] = STATE_NAMESPACE_ATTRIBUTE_U; |
| |
| _aiiStateTable[T_ATTRIBUTE_U_LN_QN] = STATE_ATTRIBUTE_U_LN_QN; |
| _aiiStateTable[T_ATTRIBUTE_P_U_LN] = STATE_ATTRIBUTE_P_U_LN; |
| _aiiStateTable[T_ATTRIBUTE_U_LN] = STATE_ATTRIBUTE_U_LN; |
| _aiiStateTable[T_ATTRIBUTE_LN] = STATE_ATTRIBUTE_LN; |
| _aiiStateTable[T_ATTRIBUTE_U_LN_QN_OBJECT] = STATE_ATTRIBUTE_U_LN_QN_OBJECT; |
| _aiiStateTable[T_ATTRIBUTE_P_U_LN_OBJECT] = STATE_ATTRIBUTE_P_U_LN_OBJECT; |
| _aiiStateTable[T_ATTRIBUTE_U_LN_OBJECT] = STATE_ATTRIBUTE_U_LN_OBJECT; |
| _aiiStateTable[T_ATTRIBUTE_LN_OBJECT] = STATE_ATTRIBUTE_LN_OBJECT; |
| } |
| |
| protected XMLStreamBuffer _buffer; |
| |
| /** |
| * True if this processor should create a fragment of XML, without the start/end document markers. |
| */ |
| protected boolean _fragmentMode; |
| |
| protected boolean _stringInterningFeature = false; |
| |
| /** |
| * Number of remaining XML element trees that should be visible |
| * through this {@link AbstractProcessor}. |
| */ |
| protected int _treeCount; |
| |
| /** |
| * @deprecated |
| * Use {@link #setBuffer(XMLStreamBuffer, boolean)} |
| */ |
| protected final void setBuffer(XMLStreamBuffer buffer) { |
| setBuffer(buffer,buffer.isFragment()); |
| } |
| protected final void setBuffer(XMLStreamBuffer buffer, boolean fragmentMode) { |
| _buffer = buffer; |
| _fragmentMode = fragmentMode; |
| |
| _currentStructureFragment = _buffer.getStructure(); |
| _structure = _currentStructureFragment.getArray(); |
| _structurePtr = _buffer.getStructurePtr(); |
| |
| _currentStructureStringFragment = _buffer.getStructureStrings(); |
| _structureStrings = _currentStructureStringFragment.getArray(); |
| _structureStringsPtr = _buffer.getStructureStringsPtr(); |
| |
| _currentContentCharactersBufferFragment = _buffer.getContentCharactersBuffer(); |
| _contentCharactersBuffer = _currentContentCharactersBufferFragment.getArray(); |
| _contentCharactersBufferPtr = _buffer.getContentCharactersBufferPtr(); |
| |
| _currentContentObjectFragment = _buffer.getContentObjects(); |
| _contentObjects = _currentContentObjectFragment.getArray(); |
| _contentObjectsPtr = _buffer.getContentObjectsPtr(); |
| |
| _stringInterningFeature = _buffer.hasInternedStrings(); |
| _treeCount = _buffer.treeCount; |
| } |
| |
| protected final int peekStructure() { |
| if (_structurePtr < _structure.length) { |
| return _structure[_structurePtr] & 255; |
| } |
| |
| return readFromNextStructure(0); |
| } |
| |
| protected final int readStructure() { |
| if (_structurePtr < _structure.length) { |
| return _structure[_structurePtr++] & 255; |
| } |
| |
| return readFromNextStructure(1); |
| } |
| |
| protected final int readEiiState() { |
| return _eiiStateTable[readStructure()]; |
| } |
| |
| protected static int getEIIState(int item) { |
| return _eiiStateTable[item]; |
| } |
| |
| protected static int getNIIState(int item) { |
| return _niiStateTable[item]; |
| } |
| |
| protected static int getAIIState(int item) { |
| return _aiiStateTable[item]; |
| } |
| |
| protected final int readStructure16() { |
| return (readStructure() << 8) | readStructure(); |
| } |
| |
| private int readFromNextStructure(int v) { |
| _structurePtr = v; |
| _currentStructureFragment = _currentStructureFragment.getNext(); |
| _structure = _currentStructureFragment.getArray(); |
| return _structure[0] & 255; |
| } |
| |
| protected final String readStructureString() { |
| if (_structureStringsPtr < _structureStrings.length) { |
| return _structureStrings[_structureStringsPtr++]; |
| } |
| |
| _structureStringsPtr = 1; |
| _currentStructureStringFragment = _currentStructureStringFragment.getNext(); |
| _structureStrings = _currentStructureStringFragment.getArray(); |
| return _structureStrings[0]; |
| } |
| |
| protected final String readContentString() { |
| return (String)readContentObject(); |
| } |
| |
| protected final char[] readContentCharactersCopy() { |
| return (char[])readContentObject(); |
| } |
| |
| protected final int readContentCharactersBuffer(int length) { |
| if (_contentCharactersBufferPtr + length < _contentCharactersBuffer.length) { |
| final int start = _contentCharactersBufferPtr; |
| _contentCharactersBufferPtr += length; |
| return start; |
| } |
| |
| _contentCharactersBufferPtr = length; |
| _currentContentCharactersBufferFragment = _currentContentCharactersBufferFragment.getNext(); |
| _contentCharactersBuffer = _currentContentCharactersBufferFragment.getArray(); |
| return 0; |
| } |
| |
| protected final Object readContentObject() { |
| if (_contentObjectsPtr < _contentObjects.length) { |
| return _contentObjects[_contentObjectsPtr++]; |
| } |
| |
| _contentObjectsPtr = 1; |
| _currentContentObjectFragment = _currentContentObjectFragment.getNext(); |
| _contentObjects = _currentContentObjectFragment.getArray(); |
| return _contentObjects[0]; |
| } |
| |
| protected final StringBuilder _qNameBuffer = new StringBuilder(); |
| |
| protected final String getQName(String prefix, String localName) { |
| _qNameBuffer.append(prefix).append(':').append(localName); |
| final String qName = _qNameBuffer.toString(); |
| _qNameBuffer.setLength(0); |
| return (_stringInterningFeature) ? qName.intern() : qName; |
| } |
| |
| protected final String getPrefixFromQName(String qName) { |
| int pIndex = qName.indexOf(':'); |
| if (_stringInterningFeature) { |
| return (pIndex != -1) ? qName.substring(0,pIndex).intern() : ""; |
| } else { |
| return (pIndex != -1) ? qName.substring(0,pIndex) : ""; |
| } |
| } |
| } |