java.lang.Object
- gov.nasa.pds.tools.util.XMLExtractor

public class XMLExtractor
extends Object

Class to extract data from an XML file.

Field Summary

Fields
Modifier and Type Field Description

static String DEFAULT_NAMESPACE

static String SCHEMA_LOCATION_XPATH

static String TARGET_NAMESPACE

static String XML_MODEL_XPATH

Constructor Summary

Constructors
Constructor	Description
`XMLExtractor(File file)`
`XMLExtractor(String url)`	Constructor.
`XMLExtractor(URL url)`	Constructor.
`XMLExtractor(Source xml)`	Constructor.
`XMLExtractor(InputSource source)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getDefaultNamespace()`
`Source`	`getDocNode()`	Gets the document node of the XML document.
`net.sf.saxon.tree.tiny.TinyNodeImpl`	`getNodeFromDoc(String expression)`	Gets a Node object from the given expression.
`net.sf.saxon.tree.tiny.TinyNodeImpl`	`getNodeFromItem(String expression, Object item)`	Gets a Node object from the given expression.
`List<net.sf.saxon.tree.tiny.TinyNodeImpl>`	`getNodesFromDoc(String expression)`	Gets Node objects from the given expression.
`List<net.sf.saxon.tree.tiny.TinyNodeImpl>`	`getNodesFromItem(String expression, Object item)`	Gets Node objects from the given expression.
`String`	`getSchemaLocation()`
`String`	`getSystemId()`
`String`	`getTargetNamespace()`
`String`	`getValueFromDoc(String expression)`	Gets the value of the given expression.
`String`	`getValueFromItem(String expression, Object item)`	Gets the value of the given expression.
`List<String>`	`getValuesFromDoc(String expression)`	Gets the values of the given expression.
`List<String>`	`getValuesFromItem(String expression, Object item)`	Gets the values of the given expression.
`List<String>`	`getXmlModels()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SCHEMA_LOCATION_XPATH
```
public static final String SCHEMA_LOCATION_XPATH
```
    See Also:
    
    Constant Field Values
  - XML_MODEL_XPATH
```
public static final String XML_MODEL_XPATH
```
    See Also:
    
    Constant Field Values
  - DEFAULT_NAMESPACE
```
public static final String DEFAULT_NAMESPACE
```
    See Also:
    
    Constant Field Values
  - TARGET_NAMESPACE
```
public static final String TARGET_NAMESPACE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - XMLExtractor
```
public XMLExtractor(Source xml)
             throws XPathExpressionException,
                    net.sf.saxon.trans.XPathException
```
    Constructor.
    
    Parameters:
    
    xml - A parsed XML document.
    
    Throws:
    
    net.sf.saxon.trans.XPathException - If an error occurred while parsing the given xml file.
    
    XPathExpressionException - If an error occurred while setting up the default namespace.
  - XMLExtractor
```
public XMLExtractor(URL url)
             throws net.sf.saxon.trans.XPathException,
                    XPathExpressionException
```
    Constructor.
    
    Parameters:
    
    xmlFile - An xml file.
    
    Throws:
    
    net.sf.saxon.trans.XPathException - If an error occurred while parsing the given xml file.
    
    XPathExpressionException - If an error occurred while setting up the default namespace.
  - XMLExtractor
```
public XMLExtractor(InputSource source)
             throws net.sf.saxon.trans.XPathException,
                    XPathExpressionException
```
    Throws:
    
    net.sf.saxon.trans.XPathException
    
    XPathExpressionException
  - XMLExtractor
```
public XMLExtractor(File file)
             throws net.sf.saxon.trans.XPathException,
                    XPathExpressionException,
                    MalformedURLException
```
    Throws:
    
    net.sf.saxon.trans.XPathException
    
    XPathExpressionException
    
    MalformedURLException
  - XMLExtractor
```
public XMLExtractor(String url)
             throws net.sf.saxon.trans.XPathException,
                    XPathExpressionException,
                    MalformedURLException
```
    Constructor.
    
    Parameters:
    
    xmlFile - An xml file.
    
    Throws:
    
    net.sf.saxon.trans.XPathException - If an error occurred while parsing the given xml file.
    
    XPathExpressionException - If an error occurred while setting up the default namespace.
    
    MalformedURLException
- Method Detail
  - getValueFromDoc
```
public String getValueFromDoc(String expression)
                       throws XPathExpressionException,
                              net.sf.saxon.trans.XPathException
```
    Gets the value of the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    Returns:
    
    The resulting value or null if nothing was found.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
    
    net.sf.saxon.trans.XPathException
  - getValueFromItem
```
public String getValueFromItem(String expression,
                               Object item)
                        throws XPathExpressionException
```
    Gets the value of the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    item - The starting point from which to evaluate the XPath expression.
    
    Returns:
    
    The resulting value or null if nothing was found.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
  - getNodeFromDoc
```
public net.sf.saxon.tree.tiny.TinyNodeImpl getNodeFromDoc(String expression)
                                                   throws XPathExpressionException,
                                                          net.sf.saxon.trans.XPathException
```
    Gets a Node object from the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    Returns:
    
    A Node object.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
    
    net.sf.saxon.trans.XPathException
  - getNodeFromItem
```
public net.sf.saxon.tree.tiny.TinyNodeImpl getNodeFromItem(String expression,
                                                           Object item)
                                                    throws XPathExpressionException
```
    Gets a Node object from the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    item - The starting point from which to evaluate the XPath expression.
    
    Returns:
    
    A Node object.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
  - getValuesFromDoc
```
public List<String> getValuesFromDoc(String expression)
                              throws XPathExpressionException,
                                     net.sf.saxon.trans.XPathException
```
    Gets the values of the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    Returns:
    
    The resulting values or an empty list if nothing was found.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
    
    net.sf.saxon.trans.XPathException
  - getValuesFromItem
```
public List<String> getValuesFromItem(String expression,
                                      Object item)
                               throws XPathExpressionException
```
    Gets the values of the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    item - The starting point from which to evaluate the XPath expression.
    
    Returns:
    
    The resulting values or an empty list if nothing was found.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
  - getDocNode
```
public Source getDocNode()
                  throws net.sf.saxon.trans.XPathException
```
    Gets the document node of the XML document.
    
    Returns:
    
    The Document Node.
    
    Throws:
    
    net.sf.saxon.trans.XPathException
  - getNodesFromDoc
```
public List<net.sf.saxon.tree.tiny.TinyNodeImpl> getNodesFromDoc(String expression)
                                                          throws XPathExpressionException,
                                                                 net.sf.saxon.trans.XPathException
```
    Gets Node objects from the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    Returns:
    
    A NodeList object.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
    
    net.sf.saxon.trans.XPathException
  - getNodesFromItem
```
public List<net.sf.saxon.tree.tiny.TinyNodeImpl> getNodesFromItem(String expression,
                                                                  Object item)
                                                           throws XPathExpressionException
```
    Gets Node objects from the given expression.
    
    Parameters:
    
    expression - An XPath expression.
    
    item - The starting point from which to evaluate the XPath expression.
    
    Returns:
    
    A NodeList object.
    
    Throws:
    
    XPathExpressionException - If the given expression was malformed.
  - getSchemaLocation
```
public String getSchemaLocation()
                         throws XPathExpressionException,
                                net.sf.saxon.trans.XPathException
```
    Returns:
    
    Returns the schemalocation attribute value from the label. If it was not found, a null value will be returned.
    
    Throws:
    
    XPathExpressionException
    
    net.sf.saxon.trans.XPathException
  - getXmlModels
```
public List<String> getXmlModels()
                          throws XPathExpressionException,
                                 net.sf.saxon.trans.XPathException
```
    Returns:
    
    Returns the schematron specifications in the label.
    
    Throws:
    
    XPathExpressionException
    
    net.sf.saxon.trans.XPathException
  - getDefaultNamespace
```
public String getDefaultNamespace()
                           throws XPathExpressionException,
                                  net.sf.saxon.trans.XPathException
```
    Returns:
    
    Returns the 'xmlns' attribute of the document (default namespace)
    
    Throws:
    
    XPathExpressionException
    
    net.sf.saxon.trans.XPathException
  - getTargetNamespace
```
public String getTargetNamespace()
                          throws XPathExpressionException,
                                 net.sf.saxon.trans.XPathException
```
    Returns:
    
    Returns the 'targetNamespace' attribute of the document (default namespace)
    
    Throws:
    
    XPathExpressionException
    
    net.sf.saxon.trans.XPathException
  - getSystemId
```
public String getSystemId()
```

Modifier and Type	Field	Description
`static String`	`DEFAULT_NAMESPACE`
`static String`	`SCHEMA_LOCATION_XPATH`
`static String`	`TARGET_NAMESPACE`
`static String`	`XML_MODEL_XPATH`

Class XMLExtractor

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SCHEMA_LOCATION_XPATH

XML_MODEL_XPATH

DEFAULT_NAMESPACE

TARGET_NAMESPACE

Constructor Detail

XMLExtractor

XMLExtractor

XMLExtractor

XMLExtractor

XMLExtractor

Method Detail

getValueFromDoc

getValueFromItem

getNodeFromDoc

getNodeFromItem

getValuesFromDoc

getValuesFromItem

getDocNode

getNodesFromDoc

getNodesFromItem

getSchemaLocation

getXmlModels

getDefaultNamespace

getTargetNamespace

getSystemId