org.jboss.arquillian.drone.configuration.mapping.MapValueMapper Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.jboss.arquillian.drone.configuration.mapping;
import java.util.HashMap;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
/**
* Mapper for Map
*
* @author Tomas Repel
*/
public enum MapValueMapper implements ValueMapper> {
INSTANCE;
@Override
public boolean handles(Class type, Class... parameters) {
if (!Map.class.isAssignableFrom(type)) {
return false;
}
if (parameters.length != 2) {
return false;
}
for (Class param : parameters) {
if (!param.equals(String.class)) {
return false;
}
}
return true;
}
/**
* It expects the string of format key=value,key1=value1,key2=value2.
*
* @param value
* - the string to be parsed and transformed to Map.
*/
@Override
public Map transform(String value) throws IllegalArgumentException {
Map map = new HashMap();
try {
StringTokenizer st = new StringTokenizer(value, ",");
while (st.hasMoreTokens()) {
StringTokenizer subSt = new StringTokenizer(st.nextToken().trim(), "=");
map.put(subSt.nextToken().trim(), subSt.nextToken().trim());
}
} catch (NoSuchElementException e) {
throw new IllegalArgumentException("Invalid format of '"
+ value
+ "', cannot be parsed to Map. The expected format is 'key=value,key1=value1,key2=value2'",
e);
} catch (NullPointerException e) {
throw new IllegalArgumentException("Invalid format of '"
+ value
+ "', cannot be parsed to Map. The expected format is 'key=value,key1=value1,key2=value2'",
e);
}
return map;
}
}