/*
* Copyright 2014, The Sporting Exchange Limited
*
* 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 com.betfair.cougar.core.api.transcription;
/**
*
*/
public class EnumUtils {
public static final String MISS_VALUE = "UNRECOGNIZED_VALUE";
private static ThreadLocal<Boolean> hardFailure = new ThreadLocal<Boolean>();
public static void setHardFailureForThisThread(boolean b) {
hardFailure.set(b);
}
public static Boolean getHardFailureForThisThread() {
return hardFailure.get();
}
public static <T extends Enum<T>> T readEnum(Class<T> cls, String name) throws IllegalArgumentException, NullPointerException {
Boolean mode = hardFailure.get();
if (mode == null) {
mode = true;
}
return readEnum(cls, name, mode);
}
public static <T extends Enum<T>> T readEnum(Class<T> cls, String name, boolean hardFail) throws IllegalArgumentException, NullPointerException {
try {
if (MISS_VALUE.equals(name)) {
throw new EnumDerialisationException("It is invalid to pass in an enum with (special) value: "+MISS_VALUE);
}
return Enum.valueOf(cls, name);
}
catch (IllegalArgumentException iae) {
if (!hardFail) {
return Enum.valueOf(cls, MISS_VALUE);
}
else {
throw new EnumDerialisationException(iae);
}
}
}
}