/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.config.properties;
import com.hazelcast.core.TypeConverter;
import com.hazelcast.util.Preconditions;
/**
* This enum class contains basic {@link TypeConverter} implementations to
* convert strings to all common basic Java types.
*/
public enum PropertyTypeConverter implements TypeConverter {
/**
* {@link TypeConverter} that bypasses a string
*/
STRING {
@Override
public Comparable convert(Comparable value) {
Preconditions.checkNotNull(value, "The value to convert cannot be null");
return value.toString();
}
},
/**
* {@link TypeConverter} to convert an input string to an output short
*/
SHORT {
@Override
public Comparable convert(Comparable value) {
if (value instanceof String) {
return Short.parseShort((String) value);
}
throw new IllegalArgumentException("Cannot convert to short");
}
},
/**
* {@link TypeConverter} to convert an input string to an output int
*/
INTEGER {
@Override
public Comparable convert(Comparable value) {
if (value instanceof String) {
return Integer.parseInt((String) value);
}
throw new IllegalArgumentException("Cannot convert to integer");
}
},
/**
* {@link TypeConverter} to convert an input string to an output long
*/
LONG {
@Override
public Comparable convert(Comparable value) {
if (value instanceof String) {
return Long.parseLong((String) value);
}
throw new IllegalArgumentException("Cannot convert to long");
}
},
/**
* {@link TypeConverter} to convert an input string to an output float
*/
FLOAT {
@Override
public Comparable convert(Comparable value) {
if (value instanceof String) {
return Float.parseFloat((String) value);
}
throw new IllegalArgumentException("Cannot convert to float");
}
},
/**
* {@link TypeConverter} to convert an input string to an output double
*/
DOUBLE {
@Override
public Comparable convert(Comparable value) {
if (value instanceof String) {
return Double.parseDouble((String) value);
}
throw new IllegalArgumentException("Cannot convert to double");
}
},
/**
* {@link TypeConverter} to convert an input string to an output boolean
*/
BOOLEAN {
@Override
public Comparable convert(Comparable value) {
if (value instanceof Boolean) {
return value;
} else if (value instanceof String) {
return Boolean.parseBoolean((String) value);
}
throw new IllegalArgumentException("Cannot convert to boolean");
}
}
}