attributes

[James Howerton]

I am sending a string that represents the value of an attribute I would like to find. to this class.

I can print out the name of the attribute.
How can I print out the value part of the attribute?
Thanks

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package keycardsxml;


/**
 *
 * @author depot

 */
import java.io.File;
import javax.swing.JFrame;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class XMLReaderProgressions extends KeyCards {

    private String name;
   
    public Document doc;

    public XMLReaderProgressions() {
        
    }

    public void readAll(String name) {
        this.name=name;
        File docFile = new File("keycards.xml");

        doc = null;
        try {
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            doc = db.parse(docFile);
        } catch (java.io.IOException e) {
            System.out.println("Can't find the file");
        } catch (Exception e) {
            System.out.print("Problem parsing the file.");
        }

        Element root = doc.getDocumentElement();
        System.out.println("The root element is " + root.getNodeName() + ".\n");

        NodeList listOfKeys = root.getElementsByTagName("key");
        int numberOfKeys = listOfKeys.getLength();

        System.out.print("There are " + listOfKeys.getLength() + " child elements.\n");
        System.out.print("They are: \n");
        

        for (int x = 0; x < listOfKeys.getLength(); x++) {

            Node keyNode = listOfKeys.item(x);

            if (keyNode.getNodeType() == Node.ELEMENT_NODE) {
                Element keyElement = (Element) keyNode;
                NodeList keyNameList = keyElement.getElementsByTagName("keyName");
                Element keyNameElement = (Element) keyNameList.item(0);

                for(int z=0;z<keyNameList.getLength();z++){
                String n=keyNameList.item(z).getNodeName();               
                System.out.println("attribute name: "+n);
                if(keyNameList.item(z).equals(name)){
                    System.out.println("Value2 of attribute=: "+n);
                }
                /*


                   Node keyValue=keyNameList.item(z);
                   String v=keyValue.getNodeValue();

                   System.out.println(" Value= "+keyValue);
                 */
               
                }


                /*
                NodeList list = keyNameElement.getChildNodes();               
                String keyname = null;
                for (int i = 0; i < list.getLength(); i++) {
                    String value = ((Node) list.item(i)).getNodeValue().trim();
                    if (value.equals("") || value.equals("/r")) {
                        continue;
                    } else {
                        keyname = value;
                        System.out.println("The keynames are: " + keyname);

                    }
                }
                */
            }
        }
        
       


    }

   

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

   
}

>

[William Brogden]

Once you have the Element, you can use the getAttribute( name ) method.

Alternately you can get the Attr object corresponding to the name with getAttributeNode( name ).

Incidently, the org.w3c.dom.Node JavaDocs have a lovely table summarizing what the getNodeName() and getNodeValue() methods return for various kinds of Node such as Attr.

Bill

[James Howerton]

Hello.
How can I print out the values of all the tags below the <keyName key="cmaj">
I can only get the first one.

Is it possible to retrieve each of the names of the <element> of each of the elements below <keyName="cmaj"> ?

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package keycardsxml;

/**
 *
 * @author depot

 */
import java.io.File;
import javax.swing.JFrame;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class XMLReaderProgressions extends KeyCards {

    private String name;
    public Document doc;

    public XMLReaderProgressions() {
    }

    public void readAll(String name) {
        this.name = name;
        File docFile = new File("keycards.xml");

        doc = null;
        try {
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            doc = db.parse(docFile);
        } catch (java.io.IOException e) {
            System.out.println("Can't find the file");
        } catch (Exception e) {
            System.out.print("Problem parsing the file.");
        }

        Element root = doc.getDocumentElement();
        System.out.println("The root element is " + root.getNodeName() + ".\n");
        NodeList listOfKeys = root.getElementsByTagName("keyName");
        for (int x = 0; x < listOfKeys.getLength(); x++) {
            Node keyNode = listOfKeys.item(x);
            if (keyNode.getNodeType() == Node.ELEMENT_NODE) {
                Element keyElement = (Element) keyNode;
                Attr keyNameAttributes = keyElement.getAttributeNode("keyname");
                if (keyNameAttributes.getNodeValue().equals(name)) {
                    System.out.println("The param sent to class: " + name);
                    //this finds ->cmaj
                    System.out.println("The attr retrieved: " + keyNameAttributes);
                    //this finds the attr i need ->keyname="cmaj"

                    //I thought this list would contain all the elements below my
                    //keyElement I stopped on
                    NodeList list = listOfKeys.item(x).getChildNodes();

                    String keyNameSiblingValue = null;
                    for (int i = 0; i < list.getLength(); i++) {
                        String value = ((Node) list.item(i)).getNodeValue().trim();
                        if (value.equals("") || value.equals("/r")) {
                            continue;
                        } else {
                            keyNameSiblingValue = value;
                            //this only outputs the first element "sibling"
                            System.out.println("The keyNameSiblingValues are: " + keyNameSiblingValue);
                            // ->C Major

                        }
                    }
                }


                /*
                NodeList list = keyNameElement.getChildNodes();               
                String keyname = null;
                for (int i = 0; i < list.getLength(); i++) {
                String value = ((Node) list.item(i)).getNodeValue().trim();
                if (value.equals("") || value.equals("/r")) {
                continue;
                } else {
                keyname = value;
                System.out.println("The keynames are: " + keyname);

                }
                }
                 */
            }
        }




    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

output:
The root element is data.

The param sent to class: cmaj
The attr retrieved: keyname="cmaj"
The keyNameSiblingValues are: C Major
The root element is data.

The param sent to class: cmaj
The attr retrieved: keyname="cmaj"
The keyNameSiblingValues are: C Major

<?xml version="1.0" encoding="utf-8" ?>
<data>
  <keyName key="cmaj">
    <name>
      <![CDATA[C Major]]>
    </name>
    <sigtxt>
      <![CDATA[NO_#_NO_b]]>
    </sigtxt>
    <relatonetxt>
      <![CDATA[g#]]>
    </relatonetxt>
    <paratonetxt>
      <![CDATA[Bn]]>
    </paratonetxt>
    <relasigtxt>
      <![CDATA[NO_#_NO_b]]>
    </relasigtxt>
    <parasigtxt>
      <![CDATA[Bb,Eb,Ab]]>
    </parasigtxt>
    <majtxt>
      <![CDATA[C_Maj]]>
    </majtxt>
    <Itxt>
      <![CDATA[C,E,G,B]]>
    </Itxt>
    <IVtxt>
      <![CDATA[f,A,C,E]]>
    </IVtxt>
    <viiddtxt>
      <![CDATA[B,D,F,A]]>
    </viiddtxt>
    <iiitxt>
      <![CDATA[E,G,B,D]]>
    </iiitxt>
    <vitxt>
      <![CDATA[A,C,E,G]]>
    </vitxt>
    <iitxt>
      <![CDATA[D,F,A,C]]>
    </iitxt>
    <Vtxt>
      <![CDATA[G,B,D,F]]>
    </Vtxt>
    <!--textfield relamin-->
    <relamintxt>
      <![CDATA[a_min_Relative]]>
    </relamintxt>
    <irelatxt>
      <![CDATA[A,C,E,A]]>
    </irelatxt>
    <ivrelatxt>
      <![CDATA[D,F,A,C]]>
    </ivrelatxt>
    <viiDDrelatxt>
      <![CDATA[G#,B,D,F]]>
    </viiDDrelatxt>
    <IIIaugrelatxt>
      <![CDATA[C,E,G#,B]]>
    </IIIaugrelatxt>
    <VIrelatxt>
      <![CDATA[F,A,C,E]]>
    </VIrelatxt>
    <iiddrelatxt>
      <![CDATA[B,D,F,A]]>
    </iiddrelatxt>
    <Vrelatxt>
      <![CDATA[E,G#,B,D]]>
    </Vrelatxt>
    <!--texfield paramin-->
    <paramintxt>
      <![CDATA[c_min_Parallel]]>
    </paramintxt>
    <iparatxt>
      <![CDATA[C,Eb,G,C]]>
    </iparatxt>
    <ivparatxt>
      <![CDATA[F,Ab,C,Eb]]>
    </ivparatxt>
    <viiDDparatxt>
      <![CDATA[B,D,F,Ab]]>
    </viiDDparatxt>
    <IIIaugparatxt>
      <![CDATA[Eb,G,Bb,D]]>
    </IIIaugparatxt>
    <VIparatxt>
      <![CDATA[Ab,C,Eb,G]]>
    </VIparatxt>
    <iiddparatxt>
      <![CDATA[D,F,Ab,C]]>
    </iiddparatxt>
    <Vparatxt>
      <![CDATA[G,B,D,F]]>
    </Vparatxt>
    <!--appegio==========================-->
    <!-- amajtxt.setText("");-->
    <aItxt>
      <![CDATA[C,G,C,E]]>
    </aItxt>
    <aIVtxt>
      <![CDATA[F,C,F,A]]>
    </aIVtxt>
    <aviiddtxt>
      <![CDATA[B,F,B,D]]>
    </aviiddtxt>
    <aiiitxt>
      <![CDATA[E,B,E,G]]>
    </aiiitxt>
    <avitxt>
      <![CDATA[A,E,A,C]]>
    </avitxt>
    <aiitxt>
      <![CDATA[D,A,D,F]]>
    </aiitxt>
    <aVtxt>
      <![CDATA[G,D,G,B]]>
    </aVtxt>
    <!--arelamintxt.setText("");-->
    <raitxt>
      <![CDATA[A,E,A,C]]>
    </raitxt>
    <raivtxt>
      <![CDATA[D,A,D,F]]>
    </raivtxt>
    <raviiDDtxt>
      <![CDATA[G#,D,G#,B]]>
    </raviiDDtxt>
    <raIIIaugtxt>
      <![CDATA[C,G#,C,E]]>
    </raIIIaugtxt>
    <raVItxt>
      <![CDATA[F,C,F,A]]>
    </raVItxt>
    <raiiddtxt>
      <![CDATA[B,F,B,D]]>
    </raiiddtxt>
    <raVtxt>
      <![CDATA[E,B,E,G#]]>
    </raVtxt>
    <!--Car. aparamin);-->
    <paitxt>
      <![CDATA[C,G,C,Eb]]>
    </paitxt>
    <paivtxt>
      <![CDATA[F,C,F,Ab]]>
    </paivtxt>
    <paviiDDtxt>
      <![CDATA[B,F,B,D]]>
    </paviiDDtxt>
    <paIIIaugtxt>
      <![CDATA[Eb,Bb,Eb,G]]>
    </paIIIaugtxt>
    <paVItxt>
      <![CDATA[Ab,Eb,Ab,C]]>
    </paVItxt>
    <paiiddtxt>
      <![CDATA[D,Ab,D,F]]>
    </paiiddtxt>
    <paVtxt>
      <![CDATA[G,D,G,B]]>
    </paVtxt>
  </keyName>
  <keyName>
    <name>
      <![CDATA[]]>
    </name>
    <!--if(thekey.equals(("G_MAJOR")))-->
    <sigtxt>
      <![CDATA["F#"]]>
    </sigtxt>
    <relatonetxt>
      <![CDATA["D#"]]>
    </relatonetxt>
    <paratonetxt>
      <![CDATA["F#"]]>
    </paratonetxt>
    <relasigtxt>
      <![CDATA["F#"]]>
    </relasigtxt>
    <parasigtxt>
      <![CDATA["Bb,Eb"]]>
    </parasigtxt>
    <majtxt>
      <![CDATA["G_Maj"]]>
    </majtxt>
    <Itxt>
      <![CDATA["G,B,D,F#"]]>
    </Itxt>
    <IVtxt>
      <![CDATA["C,E,G,B"]]>
    </IVtxt>
    <viiddtxt>
      <![CDATA["F#,A,C,E"]]>
    </viiddtxt>
    <iiitxt>
      <![CDATA["B,D,F#,A"]]>
    </iiitxt>
    <vitxt>
      <![CDATA["E,G,B,D"]]>
    </vitxt>
    <iitxt>
      <![CDATA["A,C,E,G"]]>
    </iitxt>
    <Vtxt>
      <![CDATA["D,F#,A,C"]]>
    </Vtxt>
    <!--//textfield relamin-->
    <relamintxt>
      <![CDATA["e_min_Relative"]]>
    </relamintxt>
    <irelatxt>
      <![CDATA["E,G,B,E"]]>
    </irelatxt>
    <ivrelatxt>
      <![CDATA["A,C,E,G"]]>
    </ivrelatxt>
    <viiDDrelatxt>
      <![CDATA["D#,F#,A,C"]]>
    </viiDDrelatxt>
    <IIIaugrelatxt>
      <![CDATA["G,B,D#,F#"]]>
    </IIIaugrelatxt>
    <VIrelatxt>
      <![CDATA["C,E,G,B"]]>
    </VIrelatxt>
    <iiddrelatxt>
      <![CDATA["F#,A,C,E"]]>
    </iiddrelatxt>
    <Vrelatxt>
      <![CDATA["B,D#,F#,A"]]>
    </Vrelatxt>
    <!--//texfield paramin-->
    <paramintxt>
      <![CDATA["g_min_Parallel"]]>
    </paramintxt>
    <iparatxt>
      <![CDATA["G,Bb,D,G"]]>
    </iparatxt>
    <ivparatxt>
      <![CDATA["C,Eb,G,Bb"]]>
    </ivparatxt>
    <viiDDparatxt>
      <![CDATA["F#,A,C,Eb"]]>
    </viiDDparatxt>
    <IIIaugparatxt>
      <![CDATA["Bb,D,F#,A"]]>
    </IIIaugparatxt>
    <VIparatxt>
      <![CDATA["Eb,G,Bb,D"]]>
    </VIparatxt>
    <iiddparatxt>
      <![CDATA["A,C,Eb,G"]]>
    </iiddparatxt>
    <Vparatxt>
      <![CDATA["D,F#,A,C"]]>
    </Vparatxt>
    <!--//appegio================================-->
    <!--// amajtxt.setText("");-->
    <aItxt>
      <![CDATA["G,D,G,B"]]>
    </aItxt>
    <aIVtxt>
      <![CDATA["C,G,C,E"]]>
    </aIVtxt>
    <aviiddtxt>
      <![CDATA["F#,C,F#,A"]]>
    </aviiddtxt>
    <aiiitxt>
      <![CDATA["B,F#,B,D"]]>
    </aiiitxt>
    <avitxt>
      <![CDATA["E,B,E,G"]]>
    </avitxt>
    <aiitxt>
      <![CDATA["A,E,A,C"]]>
    </aiitxt>
    <aVtxt>
      <![CDATA["D,A,D,F#"]]>
    </aVtxt>
    <!--//Car. arelamintxt.setText("");-->
    <raitxt>
      <![CDATA["E,B,E,G"]]>
    </raitxt>
    <raivtxt>
      <![CDATA["A,E,A,C"]]>
    </raivtxt>
    <raviiDDtxt>
      <![CDATA["D#,A,D#,F#"]]>
    </raviiDDtxt>
    <raIIIaugtxt>
      <![CDATA["G,D#,G,B"]]>
    </raIIIaugtxt>
    <raVItxt>
      <![CDATA["C,G,C,E"]]>
    </raVItxt>
    <raiiddtxt>
      <![CDATA["F#,C,F#,A"]]>
    </raiiddtxt>
    <raVtxt>
      <![CDATA["B,F#,B,D#"]]>
    </raVtxt>
    <!--//Car. aparamin);-->
    <paitxt>
      <![CDATA["G,D,G,Bb"]]>
    </paitxt>
    <paivtxt>
      <![CDATA["C,G,C,Eb"]]>
    </paivtxt>
    <paviiDDtxt>
      <![CDATA["F#,C,F#,A"]]>
    </paviiDDtxt>
    <paIIIaugtxt>
      <![CDATA["Bb,F#,Bb,D"]]>
    </paIIIaugtxt>
    <paVItxt>
      <![CDATA["Eb,Bb,Eb,G"]]>
    </paVItxt>
    <paiiddtxt>
      <![CDATA["A,Eb,A,C"]]>
    </paiiddtxt>
    <paVtxt>
      <![CDATA["D,A,D,F#"]]>
    </paVtxt>
  </keyName>

[Paul Clapham]

James Howerton wrote:Hello.
How can I print out the values of all the tags below the <keyName key="cmaj">
I can only get the first one.

Is it possible to retrieve each of the names of the <element> of each of the elements below <keyName="cmaj"> ?

Indeed it is possible. In fact you have some code which is very much like what you should do in your post, only it's commented out.

Your post was very long and filled with extraneous information -- did we really need to see all 25 elements you wanted to print? -- so I probably didn't give it the attention it needed.