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Gary Gregory wrote:
> Tom:
>
> If you'd like to make things easier for me, what you could do is
> resubmit your patches against the current code base. I'll try to take a
> look tonight or tomorrow night.
>
> Thanks,
> Gary
>
Hi Gary,
I haven't patch for the latest SVN but I have a class which extends
VariableFormatter. It hasn't got a good name but it should show what I'm
trying to achieve.
Tom
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package org.apache.commons.lang.text;
import java.text.MessageFormat;
import java.util.Map;
public class VariableFormatterWithFormating extends VariableFormatter {
/**
* <p>
* A VariableResolver backed by a [EMAIL PROTECTED] Map} who uses Formats like MessageFormat does
* </p>
* @author <a href="mailto:[EMAIL PROTECTED]">Tom Schindl</a>
* @version $Id: $
*/
public static class MapVariableResolverWithFormats extends MapVariableResolver {
/**
* Creates a new variable resolver to handle formats like
* [EMAIL PROTECTED] MessageFormat} does it. You can use e.g. {today,date,short} to
* format the variable today as a short date
*
* @param map
* The variable names and values.
*/
public MapVariableResolverWithFormats(Map map) {
super(map);
}
/**
* Resolves the variable and formats the object retrieved using
* [EMAIL PROTECTED] MessageFormat}
*
* @param varName
* name of the variable and optionally the data-type and
* data-format seperated by comma
*/
public Object resolveVariable(String varName) {
int index;
if (this.getMap() != null && (index = varName.indexOf(",")) != -1) {
return MessageFormat.format("{0" + varName.substring(index)
+ "}", new Object[] { this.getMap().get(
varName.substring(0, index)) });
} else {
return super.resolveVariable(varName);
}
}
}
/**
* Creates a new instance with defaults for variable prefix and suffix and the escaping character.
*/
public VariableFormatterWithFormating() {
this((VariableResolver) null, DEFAULT_PREFIX, DEFAULT_SUFFIX, DEFAULT_ESCAPE);
}
/**
* Creates a new instance and initializes it. Uses defaults for variable prefix and suffix and the escaping
* character.
*
* @param valueMap
* the map with the variables' values
*/
public VariableFormatterWithFormating(Map valueMap) {
this(valueMap, DEFAULT_PREFIX, DEFAULT_SUFFIX, DEFAULT_ESCAPE);
}
/**
* Creates a new instance and initializes it. Uses a default escaping character.
*
* @param valueMap
* the map with the variables' values
* @param prefix
* the prefix for variables
* @param suffix
* the suffix for variables
*/
public VariableFormatterWithFormating(Map valueMap, String prefix, String suffix) {
this(valueMap, prefix, suffix, DEFAULT_ESCAPE);
}
/**
* Creates a new instance and initializes it.
*
* @param valueMap
* the map with the variables' values
* @param prefix
* the prefix for variables
* @param suffix
* the suffix for variables
* @param escape
* the escape character
*/
public VariableFormatterWithFormating(Map valueMap, String prefix, String suffix, char escape) {
this(new MapVariableResolverWithFormats(valueMap), prefix, suffix, escape);
}
/**
* Creates a new instance and initializes it.
*
* @param variableResolver
* the variable resolver
* @param prefix
* the prefix for variables
* @param suffix
* the suffix for variables
* @param escape
* the escape character
*/
public VariableFormatterWithFormating(VariableResolver variableResolver, String prefix, String suffix, char escape) {
super(variableResolver,prefix,suffix,escape);
}
/**
* Replaces the occurrences of all variables in the given source data by their current values obtained from the
* passed in map.
*
* @param valueMap
* the map with the values
* @param source
* the source text
* @return the result of the replace operation
*/
public static String replace(Map valueMap, Object source) {
return new VariableFormatter(valueMap).replace(source);
}
/**
* Replaces the occurrences of all variables in the given source data by their current values obtained from the
* passed in map. This method allows to specifiy a custom variable prefix and suffix
*
* @param valueMap
* the map with the values
* @param prefix
* the prefix of variables
* @param suffix
* the suffix of variables
* @param source
* the source text
* @return the result of the replace operation
*/
public static String replace(Map valueMap, String prefix, String suffix, Object source) {
return new VariableFormatter(valueMap, prefix, suffix).replace(source);
}
/**
* Replaces all variables in the given source data with values obtained from system properties.
*
* @param source
* the source text
* @return the result of the replace operation
*/
public static String replaceSystemProperties(Object source) {
return new VariableFormatter(System.getProperties()).replace(source);
}
}
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