org.camunda.bpm.engine.impl.form.type.EnumFormType Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.bpm.engine.impl.form.type;
import java.util.Map;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.variable.Variables;
import org.camunda.bpm.engine.variable.value.TypedValue;
/**
* @author Tom Baeyens
*/
public class EnumFormType extends SimpleFormFieldType {
public final static String TYPE_NAME = "enum";
protected Map values;
public EnumFormType(Map values) {
this.values = values;
}
public String getName() {
return TYPE_NAME;
}
@Override
public Object getInformation(String key) {
if (key.equals("values")) {
return values;
}
return null;
}
public TypedValue convertValue(TypedValue propertyValue) {
Object value = propertyValue.getValue();
if(value == null || String.class.isInstance(value)) {
validateValue(value);
return Variables.stringValue((String) value, propertyValue.isTransient());
}
else {
throw new ProcessEngineException("Value '"+value+"' is not of type String.");
}
}
protected void validateValue(Object value) {
if(value != null) {
if(values != null && !values.containsKey(value)) {
throw new ProcessEngineException("Invalid value for enum form property: " + value);
}
}
}
public Map getValues() {
return values;
}
//////////////////// deprecated ////////////////////////////////////////
@Override
public Object convertFormValueToModelValue(Object propertyValue) {
validateValue(propertyValue);
return propertyValue;
}
@Override
public String convertModelValueToFormValue(Object modelValue) {
if(modelValue != null) {
if(!(modelValue instanceof String)) {
throw new ProcessEngineException("Model value should be a String");
}
validateValue(modelValue);
}
return (String) modelValue;
}
}