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Java example source code file (DTDGrammar.java)

This example Java source code file (DTDGrammar.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

augmentations, chunk_mask, chunk_shift, debug, hashtable_size, list_flag, list_mask, object, qname, qnamehashtable, string, util, xmlattributedecl, xmlelementdecl, xniexception

The DTDGrammar.java Java example source code

/*
 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 */

/*
 * Copyright 2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/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.sun.xml.internal.stream.dtd.nonvalidating;

import java.util.Hashtable;
import java.util.ArrayList;
import java.util.List;

import com.sun.org.apache.xerces.internal.util.SymbolTable;
import com.sun.org.apache.xerces.internal.xni.Augmentations;
import com.sun.org.apache.xerces.internal.xni.QName;
import com.sun.org.apache.xerces.internal.util.XMLSymbols;
import com.sun.org.apache.xerces.internal.xni.XMLLocator;
import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier;
import com.sun.org.apache.xerces.internal.xni.XMLString;
import com.sun.org.apache.xerces.internal.xni.XNIException;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDTDContentModelSource;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDTDSource;

/**
 * A DTD grammar. This class implements the XNI handler interfaces
 * for DTD information so that it can build the approprate validation
 * structures automatically from the callbacks.
 *
 * @author Eric Ye, IBM
 * @author Jeffrey Rodriguez, IBM
 * @author Andy Clark, IBM
 * @author Neil Graham, IBM
 *
 */
public class DTDGrammar {


    /** Top level scope (-1). */
    public static final int TOP_LEVEL_SCOPE = -1;

    // private

    /** Chunk shift (8). */
    private static final int CHUNK_SHIFT = 8; // 2^8 = 256

    /** Chunk size (1 << CHUNK_SHIFT). */
    private static final int CHUNK_SIZE = (1 << CHUNK_SHIFT);

    /** Chunk mask (CHUNK_SIZE - 1). */
    private static final int CHUNK_MASK = CHUNK_SIZE - 1;

    /** Initial chunk count (1 << (10 - CHUNK_SHIFT)). */
    private static final int INITIAL_CHUNK_COUNT = (1 << (10 - CHUNK_SHIFT)); // 2^10 = 1k

    /** List flag (0x80). */
    private static final short LIST_FLAG = 0x80;

    /** List mask (~LIST_FLAG). */
    private static final short LIST_MASK = ~LIST_FLAG;

    // debugging

    /** Debug DTDGrammar. */
    private static final boolean DEBUG = false;

    //
    // Data
    //

    protected XMLDTDSource fDTDSource = null;
    protected XMLDTDContentModelSource fDTDContentModelSource = null;

    /** Current element index. */
    protected int fCurrentElementIndex;

    /** Current attribute index. */
    protected int fCurrentAttributeIndex;

    /** fReadingExternalDTD */
    protected boolean fReadingExternalDTD = false;

    /** Symbol table. */
    private SymbolTable fSymbolTable;
    private ArrayList notationDecls = new ArrayList();

    // element declarations

    /** Number of element declarations. */
    private int fElementDeclCount = 0;

    /** Element declaration name. */
    private QName fElementDeclName[][] = new QName[INITIAL_CHUNK_COUNT][];

    /**
     * Element declaration type.
     * @see XMLElementDecl
     */
    private short fElementDeclType[][] = new short[INITIAL_CHUNK_COUNT][];


    /** First attribute declaration of an element declaration. */
    private int fElementDeclFirstAttributeDeclIndex[][] = new int[INITIAL_CHUNK_COUNT][];

    /** Last attribute declaration of an element declaration. */
    private int fElementDeclLastAttributeDeclIndex[][] = new int[INITIAL_CHUNK_COUNT][];

    // attribute declarations

    /** Number of attribute declarations. */
    private int fAttributeDeclCount = 0 ;

    /** Attribute declaration name. */
    private QName fAttributeDeclName[][] = new QName[INITIAL_CHUNK_COUNT][];

    /**
     * Attribute declaration type.
     * @see XMLAttributeDecl
     */
    private short fAttributeDeclType[][] = new short[INITIAL_CHUNK_COUNT][];

    /** Attribute declaration enumeration values. */
    private String[] fAttributeDeclEnumeration[][] = new String[INITIAL_CHUNK_COUNT][][];
    private short fAttributeDeclDefaultType[][] = new short[INITIAL_CHUNK_COUNT][];
    private String fAttributeDeclDefaultValue[][] = new String[INITIAL_CHUNK_COUNT][];
    private String fAttributeDeclNonNormalizedDefaultValue[][] = new String[INITIAL_CHUNK_COUNT][];
    private int fAttributeDeclNextAttributeDeclIndex[][] = new int[INITIAL_CHUNK_COUNT][];

    /** Element index mapping table. */
    private QNameHashtable fElementIndexMap = new QNameHashtable();

    /** Temporary qualified name. */
    private QName fQName = new QName();

    /** Temporary Attribute decl. */
    protected XMLAttributeDecl fAttributeDecl = new XMLAttributeDecl();

    /** Element declaration. */
    private XMLElementDecl fElementDecl = new XMLElementDecl();

    /** Simple type. */
    private XMLSimpleType fSimpleType = new XMLSimpleType();


    /** table of XMLElementDecl   */
    Hashtable   fElementDeclTab     = new Hashtable();

    /** Default constructor. */
    public DTDGrammar(SymbolTable symbolTable) {
        fSymbolTable = symbolTable;
    }

    public int getAttributeDeclIndex(int elementDeclIndex, String attributeDeclName) {
        if (elementDeclIndex == -1) {
            return -1;
        }
        int attDefIndex = getFirstAttributeDeclIndex(elementDeclIndex);
        while (attDefIndex != -1) {
            getAttributeDecl(attDefIndex, fAttributeDecl);

            if (fAttributeDecl.name.rawname == attributeDeclName
            || attributeDeclName.equals(fAttributeDecl.name.rawname) ) {
                return attDefIndex;
            }
            attDefIndex = getNextAttributeDeclIndex(attDefIndex);
        }
        return -1;
    }

    /**
     * The start of the DTD.
     *
     * @param locator  The document locator, or null if the document
     *                 location cannot be reported during the parsing of
     *                 the document DTD. However, it is <em>strongly
     *                 recommended that a locator be supplied that can
     *                 at least report the base system identifier of the
     *                 DTD.
     *
     * @param augs Additional information that may include infoset
     *                      augmentations.
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void startDTD(XMLLocator locator, Augmentations augs) throws XNIException {
    } // startDTD(XMLLocator)

    // startExternalSubset(Augmentations)

    // endExternalSubset(Augmentations)

    /**
     * An element declaration.
     *
     * @param name         The name of the element.
     * @param contentModel The element content model.
     * @param augs Additional information that may include infoset
     *                      augmentations.
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void elementDecl(String name, String contentModel, Augmentations augs)
    throws XNIException {

        XMLElementDecl tmpElementDecl = (XMLElementDecl) fElementDeclTab.get(name) ;
        if ( tmpElementDecl != null ) {
            if (tmpElementDecl.type == -1) {
                fCurrentElementIndex = getElementDeclIndex(name);
            }
            else {
                // duplicate element, ignored.
                return;
            }
        }
        else {
            fCurrentElementIndex = createElementDecl();//create element decl
        }

        XMLElementDecl elementDecl       = new XMLElementDecl();
        QName          elementName       = new QName(null, name, name, null);

        elementDecl.name.setValues(elementName);
        elementDecl.scope= -1;
        if (contentModel.equals("EMPTY")) {
            elementDecl.type = XMLElementDecl.TYPE_EMPTY;
        }
        else if (contentModel.equals("ANY")) {
            elementDecl.type = XMLElementDecl.TYPE_ANY;
        }
        else if (contentModel.startsWith("(") ) {
            if (contentModel.indexOf("#PCDATA") > 0 ) {
                elementDecl.type = XMLElementDecl.TYPE_MIXED;
            }
            else {
                elementDecl.type = XMLElementDecl.TYPE_CHILDREN;
            }
        }


        //add(or set) this elementDecl to the local cache
        this.fElementDeclTab.put(name, elementDecl );

        fElementDecl = elementDecl;


        if ( DEBUG ) {
            System.out.println(  "name = " + fElementDecl.name.localpart );
            System.out.println(  "Type = " + fElementDecl.type );
        }

        setElementDecl(fCurrentElementIndex, fElementDecl );//set internal structure

        int chunk = fCurrentElementIndex >> CHUNK_SHIFT;
        ensureElementDeclCapacity(chunk);
    }

    /**
     * An attribute declaration.
     *
     * @param elementName   The name of the element that this attribute
     *                      is associated with.
     * @param attributeName The name of the attribute.
     * @param type          The attribute type. This value will be one of
     *                      the following: "CDATA", "ENTITY", "ENTITIES",
     *                      "ENUMERATION", "ID", "IDREF", "IDREFS",
     *                      "NMTOKEN", "NMTOKENS", or "NOTATION".
     * @param enumeration   If the type has the value "ENUMERATION", this
     *                      array holds the allowed attribute values;
     *                      otherwise, this array is null.
     * @param defaultType   The attribute default type. This value will be
     *                      one of the following: "#FIXED", "#IMPLIED",
     *                      "#REQUIRED", or null.
     * @param defaultValue  The attribute default value, or null if no
     *                      default value is specified.
     * @param nonNormalizedDefaultValue  The attribute default value with no normalization
     *                      performed, or null if no default value is specified.
     *
     * @param augs Additional information that may include infoset
     *                      augmentations.
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void attributeDecl(String elementName, String attributeName,
    String type, String[] enumeration,
    String defaultType, XMLString defaultValue,
    XMLString nonNormalizedDefaultValue, Augmentations augs) throws XNIException {

        if (type != XMLSymbols.fCDATASymbol && defaultValue != null) {
            normalizeDefaultAttrValue(defaultValue);
        }

        if ( this.fElementDeclTab.containsKey( (String) elementName) ) {
            //if ElementDecl has already being created in the Grammar then remove from table,
            //this.fElementDeclTab.remove( (String) elementName );
        }
        // then it is forward reference to a element decl, create the elementDecl first.
        else {
            fCurrentElementIndex = createElementDecl();//create element decl

            XMLElementDecl elementDecl       = new XMLElementDecl();
            elementDecl.name.setValues(null, elementName, elementName, null);

            elementDecl.scope= -1;

            //add(or set) this elementDecl to the local cache
            this.fElementDeclTab.put(elementName, elementDecl );

            //set internal structure
            setElementDecl(fCurrentElementIndex, elementDecl );
        }

        //Get Grammar index to grammar array
        int elementIndex       = getElementDeclIndex(elementName);

        //return, when more than one definition is provided for the same attribute of given element type
        //only the first declaration is binding and later declarations are ignored
        if (getAttributeDeclIndex(elementIndex, attributeName) != -1) {
            return;
        }

        fCurrentAttributeIndex = createAttributeDecl();// Create current Attribute Decl

        fSimpleType.clear();
        if ( defaultType != null ) {
            if ( defaultType.equals( "#FIXED") ) {
                fSimpleType.defaultType = fSimpleType.DEFAULT_TYPE_FIXED;
            } else if ( defaultType.equals( "#IMPLIED") ) {
                fSimpleType.defaultType = fSimpleType.DEFAULT_TYPE_IMPLIED;
            } else if ( defaultType.equals( "#REQUIRED") ) {
                fSimpleType.defaultType = fSimpleType.DEFAULT_TYPE_REQUIRED;
            }
        }
        if ( DEBUG ) {
            System.out.println("defaultvalue = " + defaultValue.toString() );
        }
        fSimpleType.defaultValue      = defaultValue!=null ?  defaultValue.toString() : null;
        fSimpleType.nonNormalizedDefaultValue      = nonNormalizedDefaultValue!=null ?  nonNormalizedDefaultValue.toString() : null;
        fSimpleType.enumeration       = enumeration;

        if (type.equals("CDATA")) {
            fSimpleType.type = XMLSimpleType.TYPE_CDATA;
        }
        else if ( type.equals("ID") ) {
            fSimpleType.type = XMLSimpleType.TYPE_ID;
        }
        else if ( type.startsWith("IDREF") ) {
            fSimpleType.type = XMLSimpleType.TYPE_IDREF;
            if (type.indexOf("S") > 0) {
                fSimpleType.list = true;
            }
        }
        else if (type.equals("ENTITIES")) {
            fSimpleType.type = XMLSimpleType.TYPE_ENTITY;
            fSimpleType.list = true;
        }
        else if (type.equals("ENTITY")) {
            fSimpleType.type = XMLSimpleType.TYPE_ENTITY;
        }
        else if (type.equals("NMTOKENS")) {
            fSimpleType.type = XMLSimpleType.TYPE_NMTOKEN;
            fSimpleType.list = true;
        }
        else if (type.equals("NMTOKEN")) {
            fSimpleType.type = XMLSimpleType.TYPE_NMTOKEN;
        }
        else if (type.startsWith("NOTATION") ) {
            fSimpleType.type = XMLSimpleType.TYPE_NOTATION;
        }
        else if (type.startsWith("ENUMERATION") ) {
            fSimpleType.type = XMLSimpleType.TYPE_ENUMERATION;
        }
        else {
            // REVISIT: Report error message. -Ac
            System.err.println("!!! unknown attribute type "+type);
        }
        // REVISIT: The datatype should be stored with the attribute value
        //          and not special-cased in the XMLValidator. -Ac
        //fSimpleType.datatypeValidator = fDatatypeValidatorFactory.createDatatypeValidator(type, null, facets, fSimpleType.list);

        fQName.setValues(null, attributeName, attributeName, null);
        fAttributeDecl.setValues( fQName, fSimpleType, false );

        setAttributeDecl(elementIndex, fCurrentAttributeIndex, fAttributeDecl);

        int chunk = fCurrentAttributeIndex >> CHUNK_SHIFT;
        ensureAttributeDeclCapacity(chunk);
    } // attributeDecl(String,String,String,String[],String,XMLString,XMLString, Augmentations)

    /** Returns the symbol table. */
    public SymbolTable getSymbolTable() {
        return fSymbolTable;
    } // getSymbolTable():SymbolTable

    /**
     * Returns the index of the first element declaration. This index
     * is then used to query more information about the element declaration.
     *
     * @see #getNextElementDeclIndex
     * @see #getElementDecl
     */
    public int getFirstElementDeclIndex() {
        return fElementDeclCount >= 0 ? 0 : -1;
    } // getFirstElementDeclIndex():int

    /**
     * Returns the next index of the element declaration following the
     * specified element declaration.
     *
     * @param elementDeclIndex The element declaration index.
     */
    public int getNextElementDeclIndex(int elementDeclIndex) {
        return elementDeclIndex < fElementDeclCount - 1
        ? elementDeclIndex + 1 : -1;
    } // getNextElementDeclIndex(int):int

    /**
     * getElementDeclIndex
     *
     * @param elementDeclName
     *
     * @return index of the elementDeclName in scope
     */
    public int getElementDeclIndex(String elementDeclName) {
        int mapping = fElementIndexMap.get(elementDeclName);
        //System.out.println("getElementDeclIndex("+elementDeclName+") -> "+mapping);
        return mapping;
    } // getElementDeclIndex(String):int

    /** Returns the element decl index.
     * @param elementDeclQName qualilfied name of the element
     */
    public int getElementDeclIndex(QName elementDeclQName) {
        return getElementDeclIndex(elementDeclQName.rawname);
    } // getElementDeclIndex(QName):int

    /** make separate function for getting contentSpecType of element.
     * we can avoid setting of the element values.
     */

    public short getContentSpecType(int elementIndex){
        if (elementIndex < 0 || elementIndex >= fElementDeclCount) {
            return -1 ;
        }

        int chunk = elementIndex >> CHUNK_SHIFT;
        int index = elementIndex &  CHUNK_MASK;

        if(fElementDeclType[chunk][index] == -1){
            return -1 ;
        }
        else{
            return (short) (fElementDeclType[chunk][index] & LIST_MASK);
        }
    }

    /**
     * getElementDecl
     *
     * @param elementDeclIndex
     * @param elementDecl The values of this structure are set by this call.
     *
     * @return True if find the element, False otherwise.
     */
    public boolean getElementDecl(int elementDeclIndex,
    XMLElementDecl elementDecl) {

        if (elementDeclIndex < 0 || elementDeclIndex >= fElementDeclCount) {
            return false;
        }

        int chunk = elementDeclIndex >> CHUNK_SHIFT;
        int index = elementDeclIndex &  CHUNK_MASK;

        elementDecl.name.setValues(fElementDeclName[chunk][index]);

        if (fElementDeclType[chunk][index] == -1) {
            elementDecl.type                    = -1;
            elementDecl.simpleType.list = false;
        } else {
            elementDecl.type            = (short) (fElementDeclType[chunk][index] & LIST_MASK);
            elementDecl.simpleType.list = (fElementDeclType[chunk][index] & LIST_FLAG) != 0;
        }

        elementDecl.simpleType.defaultType       = -1;
        elementDecl.simpleType.defaultValue      = null;
        return true;

    }

    // REVISIT: Make this getAttributeDeclCount/getAttributeDeclAt. -Ac

    /**
     * getFirstAttributeDeclIndex
     *
     * @param elementDeclIndex
     *
     * @return index of the first attribute for element declaration elementDeclIndex
     */
    public int getFirstAttributeDeclIndex(int elementDeclIndex) {
        int chunk = elementDeclIndex >> CHUNK_SHIFT;
        int index = elementDeclIndex &  CHUNK_MASK;

        return  fElementDeclFirstAttributeDeclIndex[chunk][index];
    } // getFirstAttributeDeclIndex

    /**
     * getNextAttributeDeclIndex
     *
     * @param attributeDeclIndex
     *
     * @return index of the next attribute of the attribute at attributeDeclIndex
     */
    public int getNextAttributeDeclIndex(int attributeDeclIndex) {
        int chunk = attributeDeclIndex >> CHUNK_SHIFT;
        int index = attributeDeclIndex &  CHUNK_MASK;

        return fAttributeDeclNextAttributeDeclIndex[chunk][index];
    }

    /**
     * getAttributeDecl
     *
     * @param attributeDeclIndex
     * @param attributeDecl The values of this structure are set by this call.
     *
     * @return true if getAttributeDecl was able to fill in the value of attributeDecl
     */
    public boolean getAttributeDecl(int attributeDeclIndex, XMLAttributeDecl attributeDecl) {
        if (attributeDeclIndex < 0 || attributeDeclIndex >= fAttributeDeclCount) {
            return false;
        }
        int chunk = attributeDeclIndex >> CHUNK_SHIFT;
        int index = attributeDeclIndex & CHUNK_MASK;

        attributeDecl.name.setValues(fAttributeDeclName[chunk][index]);

        short attributeType;
        boolean isList;

        if (fAttributeDeclType[chunk][index] == -1) {

            attributeType = -1;
            isList = false;
        } else {
            attributeType = (short) (fAttributeDeclType[chunk][index] & LIST_MASK);
            isList = (fAttributeDeclType[chunk][index] & LIST_FLAG) != 0;
        }
        attributeDecl.simpleType.setValues(attributeType,fAttributeDeclName[chunk][index].localpart,
        fAttributeDeclEnumeration[chunk][index],
        isList, fAttributeDeclDefaultType[chunk][index],
        fAttributeDeclDefaultValue[chunk][index],
        fAttributeDeclNonNormalizedDefaultValue[chunk][index]);
        return true;

    } // getAttributeDecl


    /**
     * Returns whether the given attribute is of type CDATA or not
     *
     * @param elName The element name.
     * @param atName The attribute name.
     *
     * @return true if the attribute is of type CDATA
     */
    public boolean isCDATAAttribute(QName elName, QName atName) {
        int elDeclIdx = getElementDeclIndex(elName);
        if (getAttributeDecl(elDeclIdx, fAttributeDecl)
        && fAttributeDecl.simpleType.type != XMLSimpleType.TYPE_CDATA){
            return false;
        }
        return true;
    }



    public void printElements(  ) {
        int elementDeclIndex = 0;
        XMLElementDecl elementDecl = new XMLElementDecl();
        while (getElementDecl(elementDeclIndex++, elementDecl)) {

            System.out.println("element decl: "+elementDecl.name+
            ", "+ elementDecl.name.rawname  );

        }
    }

    public void printAttributes(int elementDeclIndex) {
        int attributeDeclIndex = getFirstAttributeDeclIndex(elementDeclIndex);
        System.out.print(elementDeclIndex);
        System.out.print(" [");
        while (attributeDeclIndex != -1) {
            System.out.print(' ');
            System.out.print(attributeDeclIndex);
            printAttribute(attributeDeclIndex);
            attributeDeclIndex = getNextAttributeDeclIndex(attributeDeclIndex);
            if (attributeDeclIndex != -1) {
                System.out.print(",");
            }
        }
        System.out.println(" ]");
    }


    protected int createElementDecl() {
        int chunk = fElementDeclCount >> CHUNK_SHIFT;
        int index = fElementDeclCount & CHUNK_MASK;
        ensureElementDeclCapacity(chunk);
        fElementDeclName[chunk][index]                    = new QName();
        fElementDeclType[chunk][index]                    = -1;
        fElementDeclFirstAttributeDeclIndex[chunk][index] = -1;
        fElementDeclLastAttributeDeclIndex[chunk][index]  = -1;
        return fElementDeclCount++;
    }

    protected void setElementDecl(int elementDeclIndex, XMLElementDecl elementDecl) {
        if (elementDeclIndex < 0 || elementDeclIndex >= fElementDeclCount) {
            return;
        }
        int     chunk       = elementDeclIndex >> CHUNK_SHIFT;
        int     index       = elementDeclIndex &  CHUNK_MASK;

        int     scope       = elementDecl.scope;


        fElementDeclName[chunk][index].setValues(elementDecl.name);
        fElementDeclType[chunk][index]                  = elementDecl.type;



        if (elementDecl.simpleType.list  == true ) {
            fElementDeclType[chunk][index] |= LIST_FLAG;
        }

        fElementIndexMap.put(elementDecl.name.rawname, elementDeclIndex);
    }




    protected void setFirstAttributeDeclIndex(int elementDeclIndex, int newFirstAttrIndex){

        if (elementDeclIndex < 0 || elementDeclIndex >= fElementDeclCount) {
            return;
        }

        int chunk = elementDeclIndex >> CHUNK_SHIFT;
        int index = elementDeclIndex &  CHUNK_MASK;

        fElementDeclFirstAttributeDeclIndex[chunk][index] = newFirstAttrIndex;
    }


    protected int createAttributeDecl() {
        int chunk = fAttributeDeclCount >> CHUNK_SHIFT;
        int index = fAttributeDeclCount & CHUNK_MASK;

        ensureAttributeDeclCapacity(chunk);
        fAttributeDeclName[chunk][index]                    = new QName();
        fAttributeDeclType[chunk][index]                    = -1;
        fAttributeDeclEnumeration[chunk][index]             = null;
        fAttributeDeclDefaultType[chunk][index]             = XMLSimpleType.DEFAULT_TYPE_IMPLIED;
        fAttributeDeclDefaultValue[chunk][index]            = null;
        fAttributeDeclNonNormalizedDefaultValue[chunk][index]            = null;
        fAttributeDeclNextAttributeDeclIndex[chunk][index]  = -1;
        return fAttributeDeclCount++;
    }


    protected void setAttributeDecl(int elementDeclIndex, int attributeDeclIndex,
    XMLAttributeDecl attributeDecl) {
        int attrChunk = attributeDeclIndex >> CHUNK_SHIFT;
        int attrIndex = attributeDeclIndex &  CHUNK_MASK;
        fAttributeDeclName[attrChunk][attrIndex].setValues(attributeDecl.name);
        fAttributeDeclType[attrChunk][attrIndex]  =  attributeDecl.simpleType.type;

        if (attributeDecl.simpleType.list) {
            fAttributeDeclType[attrChunk][attrIndex] |= LIST_FLAG;
        }
        fAttributeDeclEnumeration[attrChunk][attrIndex]  =  attributeDecl.simpleType.enumeration;
        fAttributeDeclDefaultType[attrChunk][attrIndex]  =  attributeDecl.simpleType.defaultType;

        fAttributeDeclDefaultValue[attrChunk][attrIndex] = attributeDecl.simpleType.defaultValue;
        fAttributeDeclNonNormalizedDefaultValue[attrChunk][attrIndex] = attributeDecl.simpleType.nonNormalizedDefaultValue;

        int elemChunk     = elementDeclIndex >> CHUNK_SHIFT;
        int elemIndex     = elementDeclIndex &  CHUNK_MASK;
        int index         = fElementDeclFirstAttributeDeclIndex[elemChunk][elemIndex];
        while (index != -1) {
            if (index == attributeDeclIndex) {
                break;
            }
            attrChunk = index >> CHUNK_SHIFT;
            attrIndex = index & CHUNK_MASK;
            index = fAttributeDeclNextAttributeDeclIndex[attrChunk][attrIndex];
        }
        if (index == -1) {
            if (fElementDeclFirstAttributeDeclIndex[elemChunk][elemIndex] == -1) {
                fElementDeclFirstAttributeDeclIndex[elemChunk][elemIndex] = attributeDeclIndex;
            } else {
                index = fElementDeclLastAttributeDeclIndex[elemChunk][elemIndex];
                attrChunk = index >> CHUNK_SHIFT;
                attrIndex = index & CHUNK_MASK;
                fAttributeDeclNextAttributeDeclIndex[attrChunk][attrIndex] = attributeDeclIndex;
            }
            fElementDeclLastAttributeDeclIndex[elemChunk][elemIndex] = attributeDeclIndex;
        }
    }

    public void notationDecl(String name, XMLResourceIdentifier identifier,
    Augmentations augs) throws XNIException {


        XMLNotationDecl  notationDecl = new XMLNotationDecl();
        notationDecl.setValues(name,identifier.getPublicId(),identifier.getLiteralSystemId(),
        identifier.getBaseSystemId());
        notationDecls.add(notationDecl);
    }

    public List getNotationDecls(){
        return notationDecls;
    }

    //
    // Private methods
    //
    private void printAttribute(int attributeDeclIndex) {

        XMLAttributeDecl attributeDecl = new XMLAttributeDecl();
        if (getAttributeDecl(attributeDeclIndex, attributeDecl)) {
            System.out.print(" { ");
            System.out.print(attributeDecl.name.localpart);
            System.out.print(" }");
        }

    } // printAttribute(int)



    private void ensureElementDeclCapacity(int chunk) {
        if (chunk >= fElementDeclName.length) {

            fElementDeclName = resize(fElementDeclName, fElementDeclName.length * 2);
            fElementDeclType = resize(fElementDeclType, fElementDeclType.length * 2);
            fElementDeclFirstAttributeDeclIndex = resize(fElementDeclFirstAttributeDeclIndex, fElementDeclFirstAttributeDeclIndex.length * 2);
            fElementDeclLastAttributeDeclIndex = resize(fElementDeclLastAttributeDeclIndex, fElementDeclLastAttributeDeclIndex.length * 2);
        }
        else if (fElementDeclName[chunk] != null) {
            return;
        }

        fElementDeclName[chunk] = new QName[CHUNK_SIZE];
        fElementDeclType[chunk] = new short[CHUNK_SIZE];
        fElementDeclFirstAttributeDeclIndex[chunk] = new int[CHUNK_SIZE];
        fElementDeclLastAttributeDeclIndex[chunk] = new int[CHUNK_SIZE];
        return;
    }

    private void ensureAttributeDeclCapacity(int chunk) {

        if (chunk >= fAttributeDeclName.length) {
            fAttributeDeclName = resize(fAttributeDeclName, fAttributeDeclName.length * 2);
            fAttributeDeclType = resize(fAttributeDeclType, fAttributeDeclType.length * 2);
            fAttributeDeclEnumeration = resize(fAttributeDeclEnumeration, fAttributeDeclEnumeration.length * 2);
            fAttributeDeclDefaultType = resize(fAttributeDeclDefaultType, fAttributeDeclDefaultType.length * 2);
            fAttributeDeclDefaultValue = resize(fAttributeDeclDefaultValue, fAttributeDeclDefaultValue.length * 2);
            fAttributeDeclNonNormalizedDefaultValue = resize(fAttributeDeclNonNormalizedDefaultValue, fAttributeDeclNonNormalizedDefaultValue.length * 2);
            fAttributeDeclNextAttributeDeclIndex = resize(fAttributeDeclNextAttributeDeclIndex, fAttributeDeclNextAttributeDeclIndex.length * 2);
        }
        else if (fAttributeDeclName[chunk] != null) {
            return;
        }

        fAttributeDeclName[chunk] = new QName[CHUNK_SIZE];
        fAttributeDeclType[chunk] = new short[CHUNK_SIZE];
        fAttributeDeclEnumeration[chunk] = new String[CHUNK_SIZE][];
        fAttributeDeclDefaultType[chunk] = new short[CHUNK_SIZE];
        fAttributeDeclDefaultValue[chunk] = new String[CHUNK_SIZE];
        fAttributeDeclNonNormalizedDefaultValue[chunk] = new String[CHUNK_SIZE];
        fAttributeDeclNextAttributeDeclIndex[chunk] = new int[CHUNK_SIZE];
        return;
    }


    // resize chunks

    private static short[][] resize(short array[][], int newsize) {
        short newarray[][] = new short[newsize][];
        System.arraycopy(array, 0, newarray, 0, array.length);
        return newarray;
    }

    private static int[][] resize(int array[][], int newsize) {
        int newarray[][] = new int[newsize][];
        System.arraycopy(array, 0, newarray, 0, array.length);
        return newarray;
    }

    private static QName[][] resize(QName array[][], int newsize) {
        QName newarray[][] = new QName[newsize][];
        System.arraycopy(array, 0, newarray, 0, array.length);
        return newarray;
    }

    private static String[][] resize(String array[][], int newsize) {
        String newarray[][] = new String[newsize][];
        System.arraycopy(array, 0, newarray, 0, array.length);
        return newarray;
    }

    private static String[][][] resize(String array[][][], int newsize) {
        String newarray[][][] = new String[newsize] [][];
        System.arraycopy(array, 0, newarray, 0, array.length);
        return newarray;
    }

    //
    // Classes
    //


    /**
     * A simple Hashtable implementation that takes a tuple (String, String)
     * as the key and a int as value.
     *
     * @author Eric Ye, IBM
     * @author Andy Clark, IBM
     */
    protected static final class QNameHashtable {

        //
        // Constants
        //
        public static final boolean UNIQUE_STRINGS = true;

        /** Initial bucket size (4). */
        private static final int INITIAL_BUCKET_SIZE = 4;

        // NOTE: Changed previous hashtable size from 512 to 101 so
        //       that we get a better distribution for hashing. -Ac
        /** Hashtable size (101). */
        private static final int HASHTABLE_SIZE = 101;

        //
        // Data
        //
        private Object[][] fHashTable = new Object[HASHTABLE_SIZE][];

        //
        // Public methods
        //
        /** Associates the given value with the specified key tuple. */
        public void put(String key, int value) {

            // REVISIT: Why +2? -Ac
            int hash = (hash(key)+2) % HASHTABLE_SIZE;
            Object[] bucket = fHashTable[hash];

            if (bucket == null) {
                bucket = new Object[1 + 2*INITIAL_BUCKET_SIZE];
                bucket[0] = new int[]{1};
                bucket[1] = key;
                bucket[2] = new int[]{value};
                fHashTable[hash] = bucket;
            } else {
                int count = ((int[])bucket[0])[0];
                int offset = 1 + 2*count;
                if (offset == bucket.length) {
                    int newSize = count + INITIAL_BUCKET_SIZE;
                    Object[] newBucket = new Object[1 + 2*newSize];
                    System.arraycopy(bucket, 0, newBucket, 0, offset);
                    bucket = newBucket;
                    fHashTable[hash] = bucket;
                }
                boolean found = false;
                int j=1;
                for (int i=0; i<count; i++){
                    if ((String)bucket[j] == key) {
                        ((int[])bucket[j+1])[0] = value;
                        found = true;
                        break;
                    }
                    j += 2;
                }
                if (! found) {
                    bucket[offset++] = key;
                    bucket[offset]= new int[]{value};
                    ((int[])bucket[0])[0] = ++count;
                }

            }
            //System.out.println("put("+key+" -> "+value+')');
            //System.out.println("get("+key+") -> "+get(key));

        } // put(int,String,String,int)

        /** Returns the value associated with the specified key tuple. */
        public int get(String key) {
            int hash = (hash(key)+2) % HASHTABLE_SIZE;
            Object[] bucket = fHashTable[hash];

            if (bucket == null) {
                return -1;
            }
            int count = ((int[])bucket[0])[0];

            int j=1;
            for (int i=0; i<count; i++){
                if ((String)bucket[j] == key) {
                    return ((int[])bucket[j+1])[0];
                }
                j += 2;
            }
            return -1;

        } // get(int,String,String)

        //
        // Protected methods
        //

        /** Returns a hash value for the specified symbol. */
        protected int hash(String symbol) {

            if (symbol == null) {
                return 0;
            }
            int code = 0;
            int length = symbol.length();
            for (int i = 0; i < length; i++) {
                code = code * 37 + symbol.charAt(i);
            }
            return code & 0x7FFFFFF;

        } // hash(String):int

    }  // class QNameHashtable
    /**
     * Normalize the attribute value of a non CDATA default attribute
     * collapsing sequences of space characters (x20)
     *
     * @param value The value to normalize
     * @return Whether the value was changed or not.
     */
    private boolean normalizeDefaultAttrValue(XMLString value) {

        int oldLength = value.length;

        boolean skipSpace = true; // skip leading spaces
        int current = value.offset;
        int end = value.offset + value.length;
        for (int i = value.offset; i < end; i++) {
            if (value.ch[i] == ' ') {
                if (!skipSpace) {
                    // take the first whitespace as a space and skip the others
                    value.ch[current++] = ' ';
                    skipSpace = true;
                }
                else {
                    // just skip it.
                }
            }
            else {
                // simply shift non space chars if needed
                if (current != i) {
                    value.ch[current] = value.ch[i];
                }
                current++;
                skipSpace = false;
            }
        }
        if (current != end) {
            if (skipSpace) {
                // if we finished on a space trim it
                current--;
            }
            // set the new value length
            value.length = current - value.offset;
            return true;
        }
        return false;
    }
    public void endDTD(Augmentations augs) throws XNIException {

    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java DTDGrammar.java source code file:

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