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Java how to get rid of redundant code

In Java I parse a XML document. This XML is a Purchase Order and from this XML I create a PO document in our ERP-system.
I use domparser to parse the XML.
So eventually I have code like this:
--this is an excerpt --
//ShipTo
Element shipToElement = CXMLHandlerObj.getChildElement(elementOrderRequestHeader, "ShipTo");
//Address
Element shipToAddressElement = CXMLHandlerObj.getChildElement(shipToElement, "Address");
/*get attributes of Address*/
notesHandlerObj.docOrder.replaceItemValue("ShipToParty_addressID", shipToAddressElement.getAttribute("addressID"));
notesHandlerObj.docOrder.replaceItemValue("ShipToParty_addressIDDomain", shipToAddressElement.getAttribute("addressIDDomain"));
notesHandlerObj.docOrder.replaceItemValue("ShipToParty_isoCountryCode", shipToAddressElement.getAttribute("isoCountryCode"));
But the XML also contains at the top a OrderRequestHeader which has a type attribute in it:
<OrderRequestHeader orderDate="2017-04-04T12:00:00+00:00" orderID="4550144777" orderType="regular" orderVersion="1" type="new">
Below this element all the details of the order are found.
The "type" attribute can have values like : New or Update.
The type will be "new" if the PO XML is send for the first time and the type will be "update" if the same PO is sent but then with an update contained within it.
Note that the XML structure is the same but only the type is different.
When the type is "New", I will just parse the XML and create the PO document. But if the type is "Update" then I want to check every element and update the document and mail the changes accordingly..
Now the problem is that for the parsing of the XML I need to create a new PO or update an existing one. This I can do by the following ways:
1. creating two methods :
1. create new PO
2. update PO
In the create method I can parse the xml and add values from element to the document.
In the update method I can parse again all elements but also check which data has been changed.
2. I can put a if and else statement before every element
The methods of above are a bit redudant is there any simpler way of doing this?

How to retrieve the Field that "hit" in Lucene

Maybe I'm really missing something.
I have indexed a bunch of key/value pairs in Lucene (v4.1 if it matters). Say I have
key1=value1 and key2=value2, e.g. as read from a properties file.
They get indexed both as specific fields and into a catchall "ALL" field, e.g.
new Field("key1", "value1", aFieldTypeMimickingKeywords);
new Field("key2", "value2", aFieldTypeMimickingKeywords);
new Field("ALL", "key1=value1", aFieldTypeMimickingKeywords);
new Field("ALL", "key2=value2", aFieldTypeMimickingKeywords);
// then get added to the Document of course...
I can then do a wildcard search, using
new WildcardQuery(new Term("ALL", "*alue1"));
and it will find the hit.
But, it would be nice to get more info, like "what was complete value (e.g. "key1=value1") that goes with that hit?".
The best I can figure out it to get the Document, then get the list of IndexableFields, then loop over all of them and see if the field.stringValue().contains("alue1"). (I can look at the data structures in the debugger and all the info is there)
This seems completely insane cause isn't that what Lucene just did? Shouldn't the Hit information return some of the Fields?
Is Lucene missing what seems like "obvious" functionality? Google and starting at the APIs hasn't revealed anything straightforward, but I feel like I must be searching on the wrong stuff.

You might want to try with IndexSearcher.explain() method. Once you get the ID of the matching document, prepare a query for each field (using the same search keywords) and invoke Explanation.isMatch() for each query: the ones that yield true will give you the matched field. Example:
for (String field: fields){
Query query = new WildcardQuery(new Term(field, "*alue1"));
Explanation ex = searcher.explain(query, docID);
if (ex.isMatch()){
//Your query matched field
}
}

Extracting word count From an XML File

(This question is related to the previous question I posted earlier on stackoverflow...here is the link
Extracting Values From an XML File Either using XPath, SAX or DOM for this Specific Scenario)
The question is that keeping the above case in mind, instead of getting sentences, if i would like to get the words written by each participant in all sentences. For Example. if the word 'Budget' is used ten times in total and seven times by participant 'Dolske' and three times by others. So I need the list of all words and how many times it is written by each participant? Also the list of words in each turn?
What is the best strategy to achieve this? Any sample codes?
The XML is attached here (you can also check it in the referred question)
"(495584) Firefox - search suggestions passes wrong previous result to form history"
<Turn>
<Date>'2009-06-14 18:55:25'</Date>
<From>'Justin Dolske'</From>
<Text>
<Sentence ID = "3.1"> Created an attachment (id=383211) [details] Patch v.2</Sentence>
<Sentence ID = "3.2"> Ah. So, there's a ._formHistoryResult in the....</Sentence>
<Sentence ID = "3.3"> The simple fix it to just discard the service's form history result.</Sentence>
<Sentence ID = "3.4"> Otherwise it's trying to use a old form history result that no longer applies for the search string.</Sentence>
</Text>
</Turn>
<Turn>
<Date>'2009-06-19 12:07:34'</Date>
<From>'Gavin Sharp'</From>
<Text>
<Sentence ID = "4.1"> (From update of attachment 383211 [details])</Sentence>
<Sentence ID = "4.2"> Perhaps we should rename one of them to _fhResult just to reduce confusion?</Sentence>
</Text>
</Turn>
<Turn>
<Date>'2009-06-19 13:17:56'</Date>
<From>'Justin Dolske'</From>
<Text>
<Sentence ID = "5.1"> (In reply to comment #3)</Sentence>
<Sentence ID = "5.2"> &gt; (From update of attachment 383211 [details] [details])</Sentence>
<Sentence ID = "5.3"> &gt; Perhaps we should rename one of them to _fhResult just to reduce confusion?</Sentence>
<Sentence ID = "5.4"> Good point.</Sentence>
<Sentence ID = "5.5"> I renamed the one in the wrapper to _formHistResult. </Sentence>
<Sentence ID = "5.6"> fhResult seemed maybe a bit too short.</Sentence>
</Text>
</Turn>
.....
and so on
Help will be highly appreciated...

Get all of the values, better use sTax parser, it is good for such kind of tasks. Then split all of the senteces in words and do whatever you want.
Like create a model with Class Turn, where you store the author and the sentences, write services for this class and go on. :)
To split sentence in words, use split() or StringTokenizer, but tokenizer is deprecated. To use split, create a temp array, like
stringArray = sentence.toString().split(" ");
or like "sentence.getValue()", whatever.
where in method parameter you put the regEx. In your case it is a simple space, cause it splits the sentence. Then you could just go over the words and count what you need.
In case of ArrayList, use List.toArray() to get your list in the array view.

Fetching two attributes of a xml file using xpath

I have a xml file which has a tag as below:
<locator xlink:type="locator" xlink:href="https://www.google.co.in/" xlink:title="Google" xlink:show="replace" xlink:actuate="onRequest" xlink:role="website" rank="1"> </locator>
There are many locator tag in the xml file with different roles and rank .
I am able to get the role of the above tag using #*[local-name()='role'.
Now I need to get the rank attribute based on the role.
Is there any way to fetch two attributes and there values together?
I am new to Xpath . Please help me with this.

Well //locator[#xlink:role = 'website']/#rank (with a suitable binding of the prefix xlink to the namespace http://www.w3.org/1999/xlink) is an example of selecting the rank attributes of locator elements where the role is website.

I am able to get the role of the above tag using
#*[local-name()='role'.
Now I need to get the rank attribute based on the role. Is there any
way to fetch two attributes and there values together?
Use:
ExprStartYouDidntShow/#*[local-name()='role' or name()='rank']
where ExprStartYouDidntShow is the expression selecting the elemen(s) whose two attributes should be selected.
Or, if you need to get these two attributes only when the role attribute has a particular value -- say "wantedValue", use:
ExprStartYouDidntShow/locator[#*[local-name() = 'role'] = 'website']
/#*[local-name()='role' or name()='rank']

retrieving the values from the nested hashmap

I have a XML file with many copies of table node structure as below:
<databasetable TblID=”123” TblName=”Department1_mailbox”>
<SelectColumns>
<Slno>dept1_slno</Slno>
<To>dept1_to</To>
<From>dept1_from</From>
<Subject>dept1_sub</Subject>
<Body>dept1_body</Body>
<BCC>dept1_BCC</BCC>
<CC>dept1_CC</CC>
</SelectColumns>
<WhereCondition>MailSentStatus=’New’</WhereCondition>
<UpdateSuccess>
<MailSentStatus>’Yes’</MailSentStatus>
<MailSentFailedReason>’Mail Sent Successfully’</MailSentFailedReason>
</UpdateSuccess>
<UpdateFailure>
<MailSentStatus>’No’</MailSentStatus>
<MailSentFailedReason>’Mail Sending Failed ’</MailSentFailedReason>
</ UpdateFailure>
</databasetable>
As it is not an efficient manner to traverse the file for each time to fetch the details of each node for the queries in the program, I used the nested hashmap concept to store the details while traversing the XML file for the first time. The structure I used is as below:
MapMaster
Key Value
123 MapDetails
Key Value
TblName Department1_mailbox
SelectColumns mapSelect
Key Value
Slno dept1_slno
To dept1_to
From dept1_from
Subject dept1_sub
Body dept1_body
BCC dept1_BCC
CC dept1_CC
WhereCondition MailSentStatus=’New’
UpdateSuccess mapUS
MailSentStatus ’Yes’
MailSentFailedReason ’Mail Sent Successfully’
UpdateFailure mapUF
MailSentStatus ’No’
MailSentFailedReason ’Mail Sending Failed’
But the problem I’m facing now is regarding retrieving the Value part using the nested Keys. For example,
If I need the value of Slno Key, I have to specify TblID, SelectColumns, Slno in nested form like:
Stirng Slno = ((HashMap)((HashMap)mapMaster.get(“123”))mapDetails.get(“SelectColumns”))mapSelect.get(“Slno”);
This is unconvinent to use in a program. Please suggest a solution but don’t tell that iterators are available. As I’ve to fetch the individual value from the map according to the need of my program.
EDIT:my program has to fetch the IDs of the department for which there is privilege to send mails and then these IDs are compared with the IDs in XML file. Only information of those IDs are fetched from XML which returned true in comparison. This is all my program. Please help.
Thanks in advance,
Vishu

Never cast to specific Map implementation. Better use casting to Map interface, i.e.
((Map)one.get("foo")).get("bar")
Do not use casting in your case. You can define collection using generics, so compiler will do work for you:
Map<String, Map> one = new HashMap<String, Map>();
Map<String, Integer> two = new HashMap<String, Integer>();
Now your can say:
int n = one.get("foo").get("bar");
No casting, no problems.
But the better solution is not to use nested tables at all. Create your custom classes like SelectColumns, WhereCondition etc. Each class should have appropriate private fields, getters and setters. Now parse your XML creating instance of these classes. And then use getters to traverse the data structure.
BTW if you wish to use JAXB you do not have to do almost anything! Something like the following:
Unmarshaller u = JAXBContext.newInstance(SelectColumns.class, WhereCondition.class).createUnmarshaller();
SelectColumns[] columns = (SelectColumns[])u.unmarshal(in);

One approach to take would be to generate fully qualified keys that contain the XML path to the element or attribute. These keys would be unique, stored in a single hashmap and get you to the element quickly.
Your code would simply have to generate a unique textual representation of the path and store and retrieve the xml element based on the key.