content: /*
   * Copyright (C) 2010 The Android Open Source Project
   *
   * 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 org.springframework.boot.configurationprocessor.json;
  
  class JSON {
  
  	static double checkDouble(double d) throws JSONException {
  		if (Double.isInfinite(d) || Double.isNaN(d)) {
  			throw new JSONException("Forbidden numeric value: " + d);
  		}
  		return d;
  	}
  
  	static Boolean toBoolean(Object value) {
  		if (value instanceof Boolean) {
  			return (Boolean) value;
  		}
  		if (value instanceof String) {
  			String stringValue = (String) value;
  			if ("true".equalsIgnoreCase(stringValue)) {
  				return true;
  			}
  			if ("false".equalsIgnoreCase(stringValue)) {
  				return false;
  			}
  		}
  		return null;
  	}
  
  	static Double toDouble(Object value) {
  		if (value instanceof Double) {
  			return (Double) value;
  		}
  		if (value instanceof Number) {
  			return ((Number) value).doubleValue();
  		}
  		if (value instanceof String) {
  			try {
  				return Double.valueOf((String) value);
  			}
  			catch (NumberFormatException ignored) {
  			}
  		}
  		return null;
  	}
  
  	static Integer toInteger(Object value) {
  		if (value instanceof Integer) {
  			return (Integer) value;
  		}
  		if (value instanceof Number) {
  			return ((Number) value).intValue();
  		}
  		if (value instanceof String) {
  			try {
  				return (int) Double.parseDouble((String) value);
  			}
  			catch (NumberFormatException ignored) {
  			}
  		}
  		return null;
  	}
  
  	static Long toLong(Object value) {
  		if (value instanceof Long) {
  			return (Long) value;
  		}
  		if (value instanceof Number) {
  			return ((Number) value).longValue();
  		}
  		if (value instanceof String) {
  			try {
  				return (long) Double.parseDouble((String) value);
  			}
  			catch (NumberFormatException ignored) {
  			}
  		}
  		return null;
  	}
  
  	static String toString(Object value) {
  		if (value instanceof String) {
  			return (String) value;
  		}
  		if (value != null) {
  			return String.valueOf(value);
  		}
  		return null;
  	}
  
  	public static JSONException typeMismatch(Object indexOrName, Object actual,
  			String requiredType) throws JSONException {
  		if (actual == null) {
  			throw new JSONException("Value at " + indexOrName + " is null.");
  		}
  		throw new JSONException("Value " + actual + " at " + indexOrName + " of type "
  				+ actual.getClass().getName() + " cannot be converted to "
  				+ requiredType);
  	}
  
  	public static JSONException typeMismatch(Object actual, String requiredType)
  			throws JSONException {
  		if (actual == null) {
  			throw new JSONException("Value is null.");
  		}
  		throw new JSONException(
  				"Value " + actual + " of type " + actual.getClass().getName()
  						+ " cannot be converted to " + requiredType);
  	}
  
  }
  