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//---PACKAGE DECLARATION--- |
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|
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//---IMPORTS--- |
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import java.util.*; |
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|
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/** |
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* Formats data into valid XML |
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* By calling either addElement() or addNest() you can use this |
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* class to create valid xml. When all elements have been added |
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* calling returnXML() will return a string containing the xml. |
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* |
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* |
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* @author $Author: ab11 $ |
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* @version $Id: XMLFormatter.java,v 1.2 2000/12/07 18:25:53 ab11 Exp $ |
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*/ |
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class XMLFormatter { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.2 $"; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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/** |
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* Public Constructor for the class |
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* Takes in one arguement which can contain any valid non xml character ( "<",">" ) |
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* an example for rootInfo would be "Host" |
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*/ |
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public XMLFormatter(String rootInfo){ |
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myStack = new Stack(); |
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xmlData = new String(); |
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xmlData = "<"+rootInfo+">"; |
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hostInfo = rootInfo; |
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} |
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|
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/** |
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* Public no-arg Constructor for the class |
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* Does not enclose the XML in <data></data> where data is a wrapper |
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*/ |
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public XMLFormatter(){ |
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myStack = new Stack(); |
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xmlData = new String(); |
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hostInfo = null; |
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} |
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|
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/** |
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* Public Constructor for the class |
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* Takes a second parameter containing the root attributes. |
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*/ |
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public XMLFormatter(String rootInfo, String rootAttributes){ |
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myStack = new Stack(); |
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xmlData = new String(); |
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xmlData = "<"+rootInfo+" "+rootAttributes+">"; |
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hostInfo = rootInfo; |
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} |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* addEement, adds an element to the XML string |
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* |
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*/ |
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public void addElement(String name, String value){ |
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// check that the strings contain valid data first |
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if (( name.length() != 0 ) && ( value.length() != 0 )){ |
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xmlData += "<"+name+">"+value+"</"+name+">"; |
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} |
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} |
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|
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/** |
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* addNest, adds a nest to the XML and all objects (elements or nests) that |
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* are added will be contained within this nest until closeNest() is called |
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* |
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*/ |
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public void addNest(String name){ |
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xmlData += "<"+name+">"; |
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myStack.push(name); |
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} |
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|
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/** |
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* addString, adds a string into the XML packet no further processing is carried out |
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*/ |
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public void addString(String name){ |
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xmlData += name; |
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} |
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|
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|
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/** |
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* closeNest will close the currently opened nest (by writing </nest name> to |
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* the xml string. |
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* If already at the root nest then this command is ignored |
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* |
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*/ |
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public void closeNest(){ |
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|
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if ( !myStack.empty() ){ |
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String tmp = (String) myStack.pop(); |
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xmlData += "</"+tmp+">"; |
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} |
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|
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} |
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|
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/** |
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* ReturnXML returns a valid XML string made out of all elements and nests |
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* added since this objects construction. |
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* Will close any currently open nests before returning. |
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*/ |
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public String returnXML(){ |
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|
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// remember to close any open nests first =) |
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while ( !myStack.empty() ){ |
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closeNest(); |
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} |
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|
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// add on HOSTinfo if it is defined |
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if ( hostInfo != null ){ |
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xmlData += "</"+hostInfo+">"; |
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} |
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|
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return xmlData; |
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|
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} |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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//---ATTRIBUTES--- |
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|
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// the string that will be returned in the end |
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private String xmlData; |
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// a stack object to hold the opened nest object |
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private Stack myStack; |
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// a string to hold the hostInfo |
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private String hostInfo; |
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|
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|
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//---STATIC ATTRIBUTES--- |
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|
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} // class |
