org.rrd4j.core
Class XmlTemplate

java.lang.Object
  org.rrd4j.core.XmlTemplate

Direct Known Subclasses:

RrdDefTemplate, RrdGraphDefTemplate

public abstract class XmlTemplate
extends Object

Class used as a base class for various XML template related classes. Class provides methods for XML source parsing and XML tree traversing. XML source may have unlimited number of placeholders (variables) in the format ${variable_name}. Methods are provided to specify variable values at runtime. Note that this class has limited functionality: XML source gets parsed, and variable values are collected. You have to extend this class to do something more useful.

Field Summary

protected Element

root

Constructor Summary

protected	XmlTemplate(File xmlFile)
protected	XmlTemplate(InputSource xmlSource)
protected	XmlTemplate(String xmlString)

Method Summary

void	clearValues() Removes all placeholder-value mappings.
protected static Node[]	getChildNodes(Node parentNode)
protected static Node[]	getChildNodes(Node parentNode, String childName)
protected String	getChildValue(Node parentNode, String childName)
protected String	getChildValue(Node parentNode, String childName, boolean trim)
protected boolean	getChildValueAsBoolean(Node parentNode, String childName)
protected double	getChildValueAsDouble(Node parentNode, String childName)
protected int	getChildValueAsInt(Node parentNode, String childName)
protected long	getChildValueAsLong(Node parentNode, String childName)
protected static Node	getFirstChildNode(Node parentNode, String childName)
protected String	getValue(Node parentNode)
protected String	getValue(Node parentNode, boolean trim)
protected boolean	getValueAsBoolean(Node parentNode)
protected Paint	getValueAsColor(Node parentNode)
protected double	getValueAsDouble(Node parentNode)
protected int	getValueAsInt(Node parentNode)
protected long	getValueAsLong(Node parentNode)
String[]	getVariables() Returns the list of variables that should be set in this template.
protected boolean	hasChildNode(Node parentNode, String childName)
boolean	hasVariables() Searches the XML template to see if there are variables in there that will need to be set.
protected boolean	isEmptyNode(Node node)
void	setVariable(String name, boolean value) Sets value for a single XML template variable.
void	setVariable(String name, Calendar value) Sets value for a single XML template variable.
void	setVariable(String name, Color value) Sets value for a single XML template variable.
void	setVariable(String name, Date value) Sets value for a single XML template variable.
void	setVariable(String name, double value) Sets value for a single XML template variable.
void	setVariable(String name, int value) Sets value for a single XML template variable.
void	setVariable(String name, long value) Sets value for a single XML template variable.
void	setVariable(String name, String value) Sets value for a single XML template variable.
protected void	validateTagsOnlyOnce(Node parentNode, String[] allowedChildNames)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

root

protected Element root

Constructor Detail

XmlTemplate

protected XmlTemplate(InputSource xmlSource)
               throws IOException

Throws:

IOException

XmlTemplate

protected XmlTemplate(String xmlString)
               throws IOException

Throws:

IOException

XmlTemplate

protected XmlTemplate(File xmlFile)
               throws IOException

Throws:

IOException

Method Detail

clearValues

public void clearValues()

Removes all placeholder-value mappings.

setVariable

public void setVariable(String name,
                        String value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        int value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        long value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        double value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        Color value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        Date value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        Calendar value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

setVariable

public void setVariable(String name,
                        boolean value)

Sets value for a single XML template variable. Variable name should be specified without leading '${' and ending '}' placeholder markers. For example, for a placeholder ${start}, specify start for the name parameter.

Parameters:

name - variable name

value - value to be set in the XML template

hasVariables

public boolean hasVariables()

Searches the XML template to see if there are variables in there that will need to be set.

Returns:

True if variables were detected, false if not.

getVariables

public String[] getVariables()

Returns the list of variables that should be set in this template.

Returns:

List of variable names as an array of strings.

getChildNodes

protected static Node[] getChildNodes(Node parentNode,
                                      String childName)

getChildNodes

protected static Node[] getChildNodes(Node parentNode)

getFirstChildNode

protected static Node getFirstChildNode(Node parentNode,
                                        String childName)

hasChildNode

protected boolean hasChildNode(Node parentNode,
                               String childName)

getChildValue

protected String getChildValue(Node parentNode,
                               String childName)

getChildValue

protected String getChildValue(Node parentNode,
                               String childName,
                               boolean trim)

getValue

protected String getValue(Node parentNode)

getValue

protected String getValue(Node parentNode,
                          boolean trim)

getChildValueAsInt

protected int getChildValueAsInt(Node parentNode,
                                 String childName)

getValueAsInt

protected int getValueAsInt(Node parentNode)

getChildValueAsLong

protected long getChildValueAsLong(Node parentNode,
                                   String childName)

getValueAsLong

protected long getValueAsLong(Node parentNode)

getChildValueAsDouble

protected double getChildValueAsDouble(Node parentNode,
                                       String childName)

getValueAsDouble

protected double getValueAsDouble(Node parentNode)

getChildValueAsBoolean

protected boolean getChildValueAsBoolean(Node parentNode,
                                         String childName)

getValueAsBoolean

protected boolean getValueAsBoolean(Node parentNode)

getValueAsColor

protected Paint getValueAsColor(Node parentNode)

isEmptyNode

protected boolean isEmptyNode(Node node)

validateTagsOnlyOnce

protected void validateTagsOnlyOnce(Node parentNode,
                                    String[] allowedChildNames)