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This module contains the Metro runtime code.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2005-2012 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
* http://glassfish.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:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.xml.stream.buffer;
import org.xml.sax.Attributes;
/**
* Class for holding attributes.
*
* Since it implements {@link Attributes}, this class follows the SAX convention
* of using "" instead of null.
*/
@SuppressWarnings({"PointlessArithmeticExpression"})
public final class AttributesHolder implements Attributes {
private static final int DEFAULT_CAPACITY = 8;
private static final int ITEM_SIZE = 1 << 3;
private static final int PREFIX = 0;
private static final int URI = 1;
private static final int LOCAL_NAME = 2;
private static final int QNAME = 3;
private static final int TYPE = 4;
private static final int VALUE = 5;
private int _attributeCount;
private String[] _strings;
public AttributesHolder() {
_strings = new String[DEFAULT_CAPACITY * ITEM_SIZE];
}
public final int getLength() {
return _attributeCount;
}
public final String getPrefix(int index) {
return (index >= 0 && index < _attributeCount) ?
_strings[(index << 3) + PREFIX] : null;
}
public final String getLocalName(int index) {
return (index >= 0 && index < _attributeCount) ?
_strings[(index << 3) + LOCAL_NAME] : null;
}
public final String getQName(int index) {
return (index >= 0 && index < _attributeCount) ?
_strings[(index << 3) + QNAME] : null;
}
public final String getType(int index) {
return (index >= 0 && index < _attributeCount) ?
_strings[(index << 3) + TYPE] : null;
}
public final String getURI(int index) {
return (index >= 0 && index < _attributeCount) ?
_strings[(index << 3) + URI] : null;
}
public final String getValue(int index) {
return (index >= 0 && index < _attributeCount) ?
_strings[(index << 3) + VALUE] : null;
}
public final int getIndex(String qName) {
for (int i = 0; i < _attributeCount; i++) {
if (qName.equals(_strings[(i << 3) + QNAME])) {
return i;
}
}
return -1;
}
public final String getType(String qName) {
final int i = (getIndex(qName) << 3) + TYPE;
return (i >= 0) ? _strings[i] : null;
}
public final String getValue(String qName) {
final int i = (getIndex(qName) << 3) + VALUE;
return (i >= 0) ? _strings[i] : null;
}
public final int getIndex(String uri, String localName) {
for (int i = 0; i < _attributeCount; i++) {
if (localName.equals(_strings[(i << 3) + LOCAL_NAME]) &&
uri.equals(_strings[(i << 3) + URI])) {
return i;
}
}
return -1;
}
public final String getType(String uri, String localName) {
final int i = (getIndex(uri, localName) << 3) + TYPE;
return (i >= 0) ? _strings[i] : null;
}
public final String getValue(String uri, String localName) {
final int i = (getIndex(uri, localName) << 3) + VALUE;
return (i >= 0) ? _strings[i] : null;
}
public final void clear() {
if (_attributeCount > 0) {
for (int i = 0; i < _attributeCount; i++) {
_strings[(i << 3) + VALUE] = null;
}
_attributeCount = 0;
}
}
/**
* Add an attribute using a qualified name that contains the
* prefix and local name.
*
* @param uri
* This can be empty but not null, just like everywhere else in SAX.
*/
public final void addAttributeWithQName(String uri, String localName, String qName, String type, String value) {
final int i = _attributeCount << 3;
if (i == _strings.length) {
resize(i);
}
_strings[i + PREFIX] = null;
_strings[i + URI] = uri;
_strings[i + LOCAL_NAME] = localName;
_strings[i + QNAME] = qName;
_strings[i + TYPE] = type;
_strings[i + VALUE] = value;
_attributeCount++;
}
/**
* Add an attribute using a prefix.
*
* @param prefix
* This can be empty but not null, just like everywhere else in SAX.
* @param uri
* This can be empty but not null, just like everywhere else in SAX.
*/
public final void addAttributeWithPrefix(String prefix, String uri, String localName, String type, String value) {
final int i = _attributeCount << 3;
if (i == _strings.length) {
resize(i);
}
_strings[i + PREFIX] = prefix;
_strings[i + URI] = uri;
_strings[i + LOCAL_NAME] = localName;
_strings[i + QNAME] = null;
_strings[i + TYPE] = type;
_strings[i + VALUE] = value;
_attributeCount++;
}
private void resize(int length) {
final int newLength = length * 2;
final String[] strings = new String[newLength];
System.arraycopy(_strings, 0, strings, 0, length);
_strings = strings;
}
}