package org.nodeclipse.enide.maven.util;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.variables.IStringVariableManager;
import org.eclipse.core.variables.VariablesPlugin;
/**
* copied from org.nodeclipse.debug.util.VariablesUtil
*/
public class VariablesUtil {
public static String resolveValue(String expression) throws CoreException {
String expanded= null;
try {
expanded= getValue(expression);
} catch (CoreException e) { //possibly just a variable that needs to be resolved at runtime
validateVaribles(expression);
return null;
}
return expanded;
}
/**
* Validates the value of the given string to determine if any/all variables are valid
*
* @param expression expression with variables
* @return whether the expression contained any variable values
* @exception CoreException if variable resolution fails
*/
private static String getValue(String expression) throws CoreException {
IStringVariableManager manager = VariablesPlugin.getDefault().getStringVariableManager();
return manager.performStringSubstitution(expression);
}
/**
* Validates the variables of the given string to determine if all variables are valid
*
* @param expression expression with variables
* @exception CoreException if a variable is specified that does not exist
*/
private static void validateVaribles(String expression) throws CoreException {
IStringVariableManager manager = VariablesPlugin.getDefault().getStringVariableManager();
manager.validateStringVariables(expression);
}
}