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/*
* CamelCaseBuilder.java July 2008
*
* Copyright (C) 2008, Niall Gallagher
*
* 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 org.simpleframework.xml.stream;
/**
* The CamelCaseBuilder is used to represent an XML style
* that can be applied to a serialized object. A style can be used to
* modify the element and attribute names for the generated document.
* This styles can be used to generate camel case XML.
*
*
* <ExampleElement>
* <ChildElement exampleAttribute='example'>
* <InnerElement>example</InnerElement>
* </ChildElement>
* </ExampleElement>
*
*
* Above the camel case XML elements and attributes can be generated
* from a style implementation. Styles enable the same objects to be
* serialized in different ways, generating different styles of XML
* without having to modify the class schema for that object.
*
* @author Niall Gallagher
*/
class CamelCaseBuilder implements Style {
/**
* If true then the attribute will start with upper case.
*/
protected final boolean attribute;
/**
* If true then the element will start with upper case.
*/
protected final boolean element;
/**
* Constructor for the CamelCaseBuilder object. This
* is used to create a style that will create camel case XML
* attributes and elements allowing a consistent format for
* generated XML. Both the attribute an elements are configurable.
*
* @param element if true the element will start as upper case
* @param attribute if true the attribute starts as upper case
*/
public CamelCaseBuilder(boolean element, boolean attribute) {
this.attribute = attribute;
this.element = element;
}
/**
* This is used to generate the XML attribute representation of
* the specified name. Attribute names should ensure to keep the
* uniqueness of the name such that two different names will
* be styled in to two different strings.
*
* @param name this is the attribute name that is to be styled
*
* @return this returns the styled name of the XML attribute
*/
public String getAttribute(String name) {
if(name != null) {
return new Attribute(name).process();
}
return null;
}
/**
* This is used to generate the XML element representation of
* the specified name. Element names should ensure to keep the
* uniqueness of the name such that two different names will
* be styled in to two different strings.
*
* @param name this is the element name that is to be styled
*
* @return this returns the styled name of the XML element
*/
public String getElement(String name) {
if(name != null) {
return new Element(name).process();
}
return null;
}
/**
* This is used to parse the style for this builder. This takes
* all of the words split from the original string and builds all
* of the processed tokens for the styles elements and attributes.
*
* @author Niall Gallagher
*/
private class Attribute extends Splitter {
/**
* This determines whether to capitalise a split token
*/
private boolean capital;
/**
* Constructor for the Attribute object. This will
* take the original string and parse it such that all of the
* words are emitted and used to build the styled token.
*
* @param source this is the original string to be parsed
*/
private Attribute(String source) {
super(source);
}
/**
* This is used to parse the provided text in to the style that
* is required. Manipulation of the text before committing it
* ensures that the text adheres to the required style.
*
* @param text this is the text buffer to acquire the token from
* @param off this is the offset in the buffer token starts at
* @param len this is the length of the token to be parsed
*/
@Override
protected void parse(char[] text, int off, int len) {
if(attribute || capital) {
text[off] = toUpper(text[off]);
}
capital = true;
}
/**
* This is used to commit the provided text in to the style that
* is required. Committing the text to the buffer assembles the
* tokens resulting in a complete token.
*
* @param text this is the text buffer to acquire the token from
* @param off this is the offset in the buffer token starts at
* @param len this is the length of the token to be committed
*/
@Override
protected void commit(char[] text, int off, int len) {
builder.append(text, off, len);
}
}
/**
* This is used to parse the style for this builder. This takes
* all of the words split from the original string and builds all
* of the processed tokens for the styles elements and attributes.
*
* @author Niall Gallagher
*/
private class Element extends Attribute {
/**
* This determines whether to capitalise a split token
*/
private boolean capital;
/**
* Constructor for the Element object. This will
* take the original string and parse it such that all of the
* words are emitted and used to build the styled token.
*
* @param source this is the original string to be parsed
*/
private Element(String source) {
super(source);
}
/**
* This is used to parse the provided text in to the style that
* is required. Manipulation of the text before committing it
* ensures that the text adheres to the required style.
*
* @param text this is the text buffer to acquire the token from
* @param off this is the offset in the buffer token starts at
* @param len this is the length of the token to be parsed
*/
@Override
protected void parse(char[] text, int off, int len) {
if(element || capital) {
text[off] = toUpper(text[off]);
}
capital = true;
}
}
}