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GeezerVison is showing github.com — APIJSON/src/main/java/apijson/JSONList.java at main · APIJSON/APIJSON

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/*Copyright (C) 2026 the APIJSON group. All rights reserved.
This source code is licensed under the Apache License Version 2.0.*/
package apijson;
import java.util.*;
/**
* Custom JSONList implementation based on ArrayList to replace com.alibaba.fastjson.JSONList
* Maintains same API as fastjson but uses standard Java List implementation
* @author Lemon
*/
public interface JSONList<M extends Map<String, Object>, L extends List<Object>> extends List<Object> {
public static final String TAG = "JSONList";
///**
// * Create an empty JSONList
// */
//default JSONList() {
// super();
//}
//
//private int initialCapacity = 10;
///**
// * Create a JSONList with initial capacity
// * @param initialCapacity the initial capacity
// */
//default JSONList(int initialCapacity) {
// super(initialCapacity);
//}
//
///**
// * Create a JSONList from a Collection
// * @param collection the collection to copy from
// */
//default JSONList(Collection<?> collection) {
// super(collection);
//}
//
///**
// * Create a JSONList from a JSON string
// * @param json JSON string
// */
//default JSONList(String json) {
// this();
// List<Object> list = JSON.parseArray(json);
// if (list != null) {
// addAll(list);
// }
//}
//
/**
* Get a JSONMap at the specified index
* @param index the index
* @return the JSONMap or null if not a JSONMap
*/
default M getJSONObject(int index) {
if (index < 0 || index >= size()) {
return null;
}
Object obj = get(index);
if (obj instanceof Map<?, ?>) {
return JSON.createJSONObject((Map<? extends String, ?>) obj);
}
return null;
}
/**
* Get a JSONList at the specified index
* @param index the index
* @return the JSONList or null if not a JSONList
*/
default L getJSONArray(int index) {
if (index < 0 || index >= size()) {
return null;
}
Object obj = get(index);
if (obj instanceof List<?>) {
return JSON.createJSONArray((List<?>) obj);
}
return null;
}
/**
* Get a boolean value at the specified index
* @param index the index
* @return the boolean value or false if not found
*/
default boolean getBooleanValue(int index) {
if (index < 0 || index >= size()) {
return false;
}
Object obj = get(index);
if (obj instanceof Boolean) {
return (Boolean) obj;
} else if (obj instanceof Number) {
return ((Number) obj).intValue() != 0;
} else if (obj instanceof String) {
return Boolean.parseBoolean((String) obj);
}
return false;
}
/**
* Get an integer value at the specified index
* @param index the index
* @return the integer value or 0 if not found
*/
default int getIntValue(int index) {
if (index < 0 || index >= size()) {
return 0;
}
Object obj = get(index);
if (obj instanceof Number) {
return ((Number) obj).intValue();
} else if (obj instanceof String) {
try {
return Integer.parseInt((String) obj);
} catch (NumberFormatException e) {
// Ignore
}
}
return 0;
}
/**
* Get a long value at the specified index
* @param index the index
* @return the long value or 0 if not found
*/
default long getLongValue(int index) {
if (index < 0 || index >= size()) {
return 0L;
}
Object obj = get(index);
if (obj instanceof Number) {
return ((Number) obj).longValue();
} else if (obj instanceof String) {
try {
return Long.parseLong((String) obj);
} catch (NumberFormatException e) {
// Ignore
}
}
return 0L;
}
/**
* Get a double value at the specified index
* @param index the index
* @return the double value or 0 if not found
*/
default double getDoubleValue(int index) {
if (index < 0 || index >= size()) {
return 0.0;
}
Object obj = get(index);
if (obj instanceof Number) {
return ((Number) obj).doubleValue();
} else if (obj instanceof String) {
try {
return Double.parseDouble((String) obj);
} catch (NumberFormatException e) {
// Ignore
}
}
return 0.0;
}
/**
* Get a string value at the specified index
* @param index the index
* @return the string value or null if not found
*/
default String getString(int index) {
if (index < 0 || index >= size()) {
return null;
}
Object obj = get(index);
return obj != null ? obj.toString() : null;
}
default String toJSONString() {
return JSON.toJSONString(this);
}
//@Override
//default boolean containsAll(Collection<?> c) {
// if (c == null || c.isEmpty()) {
// return true;
// }
// return super.containsAll(c);
//}
//
//@Override
//default boolean addAll(Collection<?> c) {
// if (c == null || c.isEmpty()) {
// return true;
// }
// return super.addAll(c);
//}
//
//@Override
//default boolean addAll(int index, Collection<?> c) {
// if (c == null || c.isEmpty()) {
// return true;
// }
//
// int sz = size();
// if (index < 0 || index >= sz) {
// index += sz;
// }
//
// return super.addAll(index, c);
//}
//
//@Override
//default boolean removeAll(Collection<?> c) {
// if (c == null || c.isEmpty()) {
// return true;
// }
// return super.removeAll(c);
//}
//
//@Override
//default boolean retainAll(Collection<?> c) {
// if (c == null || c.isEmpty()) {
// return true;
// }
// return super.retainAll(c);
//}
//
//
//@Override
//default Object get(int index) {
// int sz = size();
// if (index < 0 || index >= sz) {
// index += sz;
// }
//
// return super.get(index);
//}
//
//@Override
//default Object set(int index, Object element) {
// int sz = size();
// if (index < 0 || index >= sz) {
// index += sz;
// }
//
// return super.set(index, element);
//}
//
//@Override
//default void add(int index, Object element) {
// int sz = size();
// if (index < 0 || index >= sz) {
// index += sz;
// }
//
// super.add(index, element);
//}
//
//@Override
//default Object remove(int index) {
// int sz = size();
// if (index < 0 && index >= -sz) {
// index += sz;
// }
// if (index < 0 || index >= sz) {
// return null;
// }
//
// return super.remove(index);
//}
//
//@Override
//default ListIterator<Object> listIterator(int index) {
// int sz = size();
// if (index < 0 && index >= -sz) {
// index += sz;
// }
//
// return super.listIterator(index);
//}
//
//@Override
//default List<Object> subList(int fromIndex, int toIndex) {
// int sz = size();
// if (fromIndex < 0 && fromIndex >= -sz) {
// fromIndex += sz;
// }
// if (toIndex < 0 && toIndex >= -sz) {
// toIndex += sz;
// }
//
// return super.subList(fromIndex, toIndex);
//}
}
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