org.springframework.data.mongodb.util.json.JsonToken Maven / Gradle / Ivy
/*
* Copyright 2008-2020 the original author or authors.
*
* 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
*
* https://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.springframework.data.mongodb.util.json;
import static java.lang.String.*;
import org.bson.BsonDouble;
import org.bson.json.JsonParseException;
import org.bson.types.Decimal128;
/**
* JsonToken implementation borrowed from MongoDB
* Inc. licensed under the Apache License, Version 2.0.
*
* @author Jeff Yemin
* @author Ross Lawley
* @since 2.2
*/
class JsonToken {
private final Object value;
private final JsonTokenType type;
JsonToken(final JsonTokenType type, final Object value) {
this.value = value;
this.type = type;
}
Object getValue() {
return value;
}
T getValue(final Class clazz) {
try {
if (Long.class == clazz) {
if (value instanceof Integer) {
return clazz.cast(((Integer) value).longValue());
} else if (value instanceof String) {
return clazz.cast(Long.valueOf((String) value));
}
} else if (Integer.class == clazz) {
if (value instanceof String) {
return clazz.cast(Integer.valueOf((String) value));
}
} else if (Double.class == clazz) {
if (value instanceof String) {
return clazz.cast(Double.valueOf((String) value));
}
} else if (Decimal128.class == clazz) {
if (value instanceof Integer) {
return clazz.cast(new Decimal128((Integer) value));
} else if (value instanceof Long) {
return clazz.cast(new Decimal128((Long) value));
} else if (value instanceof Double) {
return clazz.cast(new BsonDouble((Double) value).decimal128Value());
} else if (value instanceof String) {
return clazz.cast(Decimal128.parse((String) value));
}
}
return clazz.cast(value);
} catch (Exception e) {
throw new JsonParseException(format("Exception converting value '%s' to type %s", value, clazz.getName()), e);
}
}
public JsonTokenType getType() {
return type;
}
}