/*
- * Copyright (C) 2001, 2002 The Mir-coders group
+ * Copyright (C) 2001, 2002 The Mir-coders group
*
* This file is part of Mir.
*
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, The Mir-coders gives permission to link
- * the code of this program with the com.oreilly.servlet library, any library
- * licensed under the Apache Software License, The Sun (tm) Java Advanced
- * Imaging library (JAI), The Sun JIMI library (or with modified versions of
- * the above that use the same license as the above), and distribute linked
- * combinations including the two. You must obey the GNU General Public
- * License in all respects for all of the code used other than the above
- * mentioned libraries. If you modify this file, you may extend this exception
- * to your version of the file, but you are not obligated to do so. If you do
- * not wish to do so, delete this exception statement from your version.
+ * the code of this program with any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two. You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries. If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
*/
-
package mir.util;
import java.util.HashMap;
import java.util.Map;
import java.util.Vector;
+import org.apache.commons.beanutils.*;
+
+import multex.Exc;
+
import mir.generator.Generator;
import mir.generator.GeneratorExc;
-import multex.Exc;
public class ParameterExpander {
final static String NODE_SEPARATOR = ".";
return result.toString();
}
- public static boolean evaluateBooleanExpression(Map aMap, String anExpression) throws Exception {
+ public static boolean evaluateBooleanExpression(Object aMap, String anExpression) throws Exception {
Parser parser = new Parser(anExpression, aMap);
return parser.parseBoolean();
}
- public static String evaluateStringExpression(Map aMap, String anExpression) throws Exception {
+ public static String evaluateStringExpression(Object aMap, String anExpression) throws Exception {
Parser parser = new Parser(anExpression, aMap);
return parser.parseString();
}
- public static int evaluateIntegerExpressionWithDefault(Map aMap, String anExpression, int aDefault) throws Exception {
+ public static int evaluateIntegerExpressionWithDefault(Object aMap, String anExpression, int aDefault) throws Exception {
if (anExpression == null || anExpression.trim().equals(""))
return aDefault;
else
return evaluateIntegerExpression(aMap, anExpression);
}
- public static int evaluateIntegerExpression(Map aMap, String anExpression) throws Exception {
+ public static int evaluateIntegerExpression(Object aMap, String anExpression) throws Exception {
Parser parser = new Parser(anExpression, aMap);
return parser.parseInteger();
}
- public static Object evaluateExpression(Map aMap, String anExpression) throws Exception {
- Parser parser = new Parser(anExpression, aMap);
+ public static Object evaluateExpression(Object aRoot, String anExpression) throws Exception {
+ Parser parser = new Parser(anExpression, aRoot);
return parser.parseWhole();
}
private static class Parser {
private Scanner scanner;
- private Map valueMap;
+ private Object valueMap;
- public Parser(String anExpression, Map aValueMap) {
+ public Parser(String anExpression, Object aValueMap) {
scanner = new Scanner(new Reader(anExpression));
valueMap = aValueMap;
}
do {
expression = parse();
- if (expression==null) {
- throw new RuntimeException("expression expected");
- }
-
result.add(expression);
token = scanner.scan();
return result;
}
+ private Object evaluateObjectField(Object anObject, Object aField) {
+ if (anObject instanceof Map) {
+ return ((Map) anObject).get(aField);
+ }
+ else if ((aField instanceof String) && PropertyUtils.isReadable(anObject, (String) aField)) {
+ try {
+ return PropertyUtils.getProperty(anObject, (String) aField);
+ }
+ catch (Throwable t) {
+ throw new RuntimeException(t.getMessage());
+ }
+ }
+ else {
+ try {
+ return MethodUtils.invokeExactMethod(anObject, "get", aField);
+ }
+ catch (Throwable t) {
+ throw new RuntimeException("Invalid reference of " + aField + "into " + anObject);
+ }
+ }
+ }
+
private Object parseVariable() {
boolean done;
Token token;
if (!(token instanceof RightSquareBraceToken))
throw new RuntimeException("] expected");
- if (currentValue instanceof Map) {
- currentValue = ((Map) currentValue).get(qualifier);
- }
- else {
- throw new RuntimeException("cannot reference into anything other than a map ('"+qualifier+"')");
- }
+ currentValue = evaluateObjectField(currentValue, qualifier);
}
else if (token instanceof IdentifierToken) {
scanner.scan();
qualifier = ((IdentifierToken) token).getName();
- if (currentValue instanceof Map) {
- currentValue = ((Map) currentValue).get(qualifier);
- }
- else {
- throw new RuntimeException("cannot reference into anything other than a map ('"+qualifier+"')");
- }
+ currentValue = evaluateObjectField(currentValue, qualifier);
}
else if (token instanceof LeftParenthesisToken) {
if (currentValue instanceof Generator.GeneratorFunction) {
}
private String interpretAsString(Object aValue) {
+ if (aValue==null)
+ return "";
if (aValue instanceof String)
return (String) aValue;
if (aValue instanceof Integer)
projects / mir.git / blobdiff