| /* |
| * Copyright (C) 2011 Google Inc. |
| * |
| * 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.google.gson.internal; |
| |
| import java.io.IOException; |
| import java.io.InvalidObjectException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectStreamException; |
| import java.math.BigDecimal; |
| |
| /** |
| * This class holds a number value that is lazily converted to a specific number type |
| * |
| * @author Inderjeet Singh |
| */ |
| @SuppressWarnings("serial") // ignore warning about missing serialVersionUID |
| public final class LazilyParsedNumber extends Number { |
| private final String value; |
| |
| /** @param value must not be null */ |
| public LazilyParsedNumber(String value) { |
| this.value = value; |
| } |
| |
| @Override |
| public int intValue() { |
| try { |
| return Integer.parseInt(value); |
| } catch (NumberFormatException e) { |
| try { |
| return (int) Long.parseLong(value); |
| } catch (NumberFormatException nfe) { |
| return new BigDecimal(value).intValue(); |
| } |
| } |
| } |
| |
| @Override |
| public long longValue() { |
| try { |
| return Long.parseLong(value); |
| } catch (NumberFormatException e) { |
| return new BigDecimal(value).longValue(); |
| } |
| } |
| |
| @Override |
| public float floatValue() { |
| return Float.parseFloat(value); |
| } |
| |
| @Override |
| public double doubleValue() { |
| return Double.parseDouble(value); |
| } |
| |
| @Override |
| public String toString() { |
| return value; |
| } |
| |
| /** |
| * If somebody is unlucky enough to have to serialize one of these, serialize |
| * it as a BigDecimal so that they won't need Gson on the other side to |
| * deserialize it. |
| */ |
| private Object writeReplace() throws ObjectStreamException { |
| return new BigDecimal(value); |
| } |
| |
| private void readObject(ObjectInputStream in) throws IOException { |
| // Don't permit directly deserializing this class; writeReplace() should have written a replacement |
| throw new InvalidObjectException("Deserialization is unsupported"); |
| } |
| |
| @Override |
| public int hashCode() { |
| return value.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof LazilyParsedNumber) { |
| LazilyParsedNumber other = (LazilyParsedNumber) obj; |
| return value == other.value || value.equals(other.value); |
| } |
| return false; |
| } |
| } |