hi
i am new to java
i have been assigned to a work where i have to take DTD file as input & i have to generate TRN file & i have been told to write the program into different classes. From DTD file i have to make a different class for ELEMENTS which will contain its properties like PCDATA,EMPTY & all, different class for ATTRIBUTES having element name, attribute name, attribute value & type. Right now what am i doing is, i have class (DTDReaderTest) with main() method, there i am taking file name & passing file name to a method readDTD(), which is in DTDReader class, there i am reading the file & separating the statements starting with <!ELEMENT & <!ATTLIST , & storing them in an arraylist. This arraylist i have created in DTDReader class, & set-get method for these arraylist are written in a class Store. Please tell me how to proceed next, finally after storing the elements i have to generate TRN file using these stored elements plz guide me
PART OF CODE:
/** DTDReaderTest class */
public class DTDReaderTest {
public static void main(String args[]){
// 1. Create an InputStreamReader using the standard input stream.
InputStreamReader isr = new InputStreamReader(System.in);
// 2. Create a BufferedReader using the InputStreamReader created.
BufferedReader stdin = new BufferedReader(isr);
boolean continueRead = true;
String fileName = null;
String filePath = null;
try {
while (continueRead) {
System.out.println("To exit at any time, type '.'");
System.out.println("Please input the source path ");
filePath = (stdin.readLine()).trim();
if (".".equals(filePath)) {
continueRead = false;
break;
}
System.out.println("Please input the source fileName (Eg: Huawei.dtd):");
fileName = (stdin.readLine()).trim(); if (".".equals(filePath)) {
continueRead = false;
break;
}
DTDReader dtdReader = new DTDReader();
Store root = dtdReader.readDTD(filePath, fileName);
ArrayList elementList = root.getElementList();
ArrayList attributeList = root.getAttributeList();
Element element = null;
Attribute attribute = null;
/** DISPLAY THE CONTENTS OF ELEMENT ARRAYLIST */
for (int i = 0, count = elementList.size(); i < count; i++) {
element = (Element) elementList.get(i);
System.out.println("Found Element: " + element.getName());
}
System.out.println();
/** DISPLAY THE CONTENTS OF ATTRIBUTE ARRAYLIST */
for (int i = 0, count = attributeList.size(); i < count; i++) {
attribute = (Attribute) attributeList.get(i);
System.out.println("Found Attrtibute: " + attribute.getWholeAttribute());
}
System.out.println();
} //continueRead ends
} catch (IOException ioe) {
ioe.printStackTrace();
}
} //main ends
}// "class" ends
/** DTDReader class */
public class DTDReader {
public Store readDTD(String filePath, String fileName) {
String dtdFile = filePath + File.separator + fileName;
DataInputStream dataInputStream = null;
String text = null;
Store root = new Store();
Element element = null;
Attribute attribute = null;
root.setElementList(elementList); root.setAttributeList(attributeList);
try {
/** READING THE FILE & SEPARATING THE STMTS WITH ELEMENT & ATTRIBUTE **/
dataInputStream = new DataInputStream(new FileInputStream(dtdFile));
while ((text = dataInputStream.readLine()) != null) {
if (text.startsWith("<!ELEMENT")) {
text = removeXMLTags(text, "ELEMENT");
text = text.trim();
element = new Element();
element.setName(text);
elementList.add(element);
} else if (text.startsWith("<!ATTLIST")) {
text = removeXMLTags(text, "ATTLIST");
text = text.trim();
attribute = new Attribute();
attribute.setWholeAttribute(text);
attributeList.add(attribute);
}
} //file reading ends
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
}
return root;
} // readDTD ends
public String removeXMLTags(String mainString, String stringToRemove) {
String xmlNode = "<!" + stringToRemove;
mainString = mainString.replaceAll(xmlNode, "");
mainString = mainString.replaceAll(">","");
mainString = mainString.replaceAll(", " , ",");
return mainString;
}
}
/** Element Class */
public class Element {
private String name;
private String pcData;
private boolean empty;
private HashMap childElementMap;
private String parent;
private String occurence;
/**
* @return Returns the occurence.
*/
public String getOccurence() {
return occurence;
}
/**
* @param occurence The occurence to set.
*/
public void setOccurence(String occurence) {
this.occurence = occurence;
}
/**
* @return Returns the empty.
*/
public boolean isEmpty() {
return empty;
}
/**
* @param empty The empty to set.
*/
public void setEmpty(boolean empty) {
this.empty = empty;
}
/**
* @return Returns the pcData.
*/
public String getPcData() {
return pcData;
}
/**
* @param pcData The pcData to set.
*/
public void setPcData(String pcData) {
this.pcData = pcData;
}
/**
* @return Returns the name.
*/
public String getName() {
return name;
}
/**
* @param name The name to set.
*/
public void setName(String name) {
this.name = name;
}
}
/**Attribute class */
public class Attribute {
private String elementName;
private String name;
private String value;
/**
* @return Returns the name.
*/
public String getName() {
return name;
}
/**
* @param name The name to set.
*/
public void setName(String name) {
this.name = name;
}
/**
* @return Returns the value.
*/
public String getValue() {
return value;
}
/**
* @param value The value to set.
*/
public void setValue(String value) {
this.value = value;
}
/**
* @return Returns the elementName.
*/
public String getElementName() {
return elementName;
}
/**
* @param elementName The elementName to set.
*/
public void setElementName(String elementName) {
this.elementName = elementName;
}
}
/**Store Class */
public class Store {
private ArrayList elementList;
private ArrayList attributeList;
/**
* @return Returns the attributeList.
*/
public ArrayList getAttributeList() {
return attributeList;
}
/**
* @param attributeList The attributeList to set.
*/
public void setAttributeList(ArrayList attributeList) {
this.attributeList = attributeList;
}
/**
* @return Returns the elementList.
*/
public ArrayList getElementList() {
return elementList;
}
/**
* @param elementList The elementList to set.
*/
public void setElementList(ArrayList elementList) {
this.elementList = elementList;
}
}
Sorry for posting such a lengthy matter!
now where i want help is how to store elements & attributes depending upon their type, value etc & how to extract them while writing a trn file?
note: DTD is available on: http://www.w3schools.com/dtd/default.asp