/*
 * Copyright 2003-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package org.apache.jmeter.engine.util;

import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.apache.jmeter.functions.InvalidVariableException;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.TestPlan;
import org.apache.jmeter.testelement.property.JMeterProperty;
import org.apache.jmeter.testelement.property.MultiProperty;
import org.apache.jmeter.testelement.property.PropertyIterator;
import org.apache.jmeter.testelement.property.StringProperty;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;

/**
 * @author Michael Stover
 * @author <a href="mailto:jsalvata@apache.org">Jordi Salvat i Alabart</a>
 * @version $Revision$ updated on $Date$
 */
public class ValueReplacer {
	transient private static Logger log = LoggingManager.getLoggerForClass();

	CompoundVariable masterFunction = new CompoundVariable();

	Map variables = new HashMap();

	public ValueReplacer() {
	}

	public ValueReplacer(TestPlan tp) {
		setUserDefinedVariables(tp.getUserDefinedVariables());
	}

	public void setUserDefinedVariables(Map variables) {
		this.variables = variables;
	}

	public void replaceValues(TestElement el) throws InvalidVariableException {
		Collection newProps = replaceValues(el.propertyIterator(), new ReplaceStringWithFunctions(masterFunction,
				variables));
		setProperties(el, newProps);
	}

	private void setProperties(TestElement el, Collection newProps) {
		Iterator iter = newProps.iterator();
		el.clear();
		while (iter.hasNext()) {
			el.setProperty((JMeterProperty) iter.next());
		}
	}

	public void reverseReplace(TestElement el) throws InvalidVariableException {
		Collection newProps = replaceValues(el.propertyIterator(), new ReplaceFunctionsWithStrings(masterFunction,
				variables));
		setProperties(el, newProps);
	}

	public void reverseReplace(TestElement el, boolean regexMatch) throws InvalidVariableException {
		Collection newProps = replaceValues(el.propertyIterator(), new ReplaceFunctionsWithStrings(masterFunction,
				variables, regexMatch));
		setProperties(el, newProps);
	}

	public void undoReverseReplace(TestElement el) throws InvalidVariableException {
		Collection newProps = replaceValues(el.propertyIterator(), new UndoVariableReplacement(masterFunction,
				variables));
		setProperties(el, newProps);
	}

	public void addVariable(String name, String value) {
		variables.put(name, value);
	}

	/**
	 * Add all the given variables to this replacer's variables map.
	 * 
	 * @param vars
	 *            A map of variable name-value pairs (String-to-String).
	 */
	public void addVariables(Map vars) {
		variables.putAll(vars);
	}

	private Collection replaceValues(PropertyIterator iter, ValueTransformer transform) throws InvalidVariableException {
		List props = new LinkedList();
		while (iter.hasNext()) {
			JMeterProperty val = iter.next();
			if (log.isDebugEnabled()) {
				log.debug("About to replace in property of type: " + val.getClass() + ": " + val);
			}
			if (val instanceof StringProperty) {
				// Must not convert TestElement.gui_class etc
				if (!val.getName().equals(TestElement.GUI_CLASS) &&
                        !val.getName().equals(TestElement.TEST_CLASS)) {
					val = transform.transformValue(val);
					if (log.isDebugEnabled()) {
						log.debug("Replacement result: " + val);
					}
				}
			} else if (val instanceof MultiProperty) {
				MultiProperty multiVal = (MultiProperty) val;
				Collection newValues = replaceValues(multiVal.iterator(), transform);
				multiVal.clear();
				Iterator propIter = newValues.iterator();
				while (propIter.hasNext()) {
					multiVal.addProperty((JMeterProperty) propIter.next());
				}
				if (log.isDebugEnabled()) {
					log.debug("Replacement result: " + multiVal);
				}
			} else {
				if (log.isDebugEnabled()) {
					log.debug("Won't replace " + val);
				}
			}
			props.add(val);
		}
		return props;
	}
}

@@ -1485,18 +1485,8 @@
  %7B%0A%09
-transient 
 priv
@@ -1496,16 +1496,22 @@
  static 
+final 
 Logger l
@@ -1553,16 +1553,24 @@
 ss();%0A%0A%09
+private 
 Compound
@@ -1621,16 +1621,24 @@
 le();%0A%0A%09
+private 
 Map vari

Tidy up; add NLS markers