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org.bspfsystems.simplejson.SimpleJSONArray Maven / Gradle / Ivy
/*
* This file is part of the SimpleJSON Java library.
*
* It is based on Clifton Labs' version
* (https://github.com/cliftonlabs/json-simple/), which is a fork of
* the original by Yidong Fang (https://github.com/fangyidong/json-simple/).
* Other authors contributions remain the copyright of the respective
* owner, with the major ones of this derivative listed below.
*
* Copyright 2008-2009,2012-2014,2021 Yidong Fang
* Copyright 2008-2009,2012-2014,2016-2021 Clifton Labs
* Copyright 2021 BSPF Systems, LLC
*
* 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.bspfsystems.simplejson;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import org.bspfsystems.simplejson.parser.JSONException;
import org.bspfsystems.simplejson.parser.JSONParser;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* Represents a simple implementation of a {@link JSONArray}, which is a
* common, non-thread-safe data format for a collection of {@link Object}s.
*
* The contents of the {@link JSONArray} are only validated as JSON values upon
* serialization (see {@link JSONSerializable#serialize()}). This means that all
* values added to a {@link JSONArray} must be recognized by the
* {@link JSONParser} for it to be considered a true {@link JSONArray}. Until
* such a recognition has been reached, the item should be considered a
* {@link JSONSerializable} {@link ArrayList}.
*/
public final class SimpleJSONArray extends ArrayList implements JSONArray {
/**
* Constructs a new {@link JSONArray}.
*
* @see ArrayList#ArrayList()
*/
public SimpleJSONArray() {
super();
}
/**
* Constructs a new {@link JSONArray} with the specified initial capacity.
*
* @param initialCapacity The initial capacity that the underlying
* {@link ArrayList} should allocate for.
* @see ArrayList#ArrayList(int)
*/
public SimpleJSONArray(final int initialCapacity) {
super(initialCapacity);
}
/**
* Constructs a new {@link JSONArray} with the specified {@link Collection}
* of data loaded into the underlying {@link ArrayList} to start.
*
* @param data The {@link Collection} whose data will be placed into the
* {@link JSONArray} to start.
* @see ArrayList#ArrayList(Collection)
*/
public SimpleJSONArray(@NotNull final Collection data) {
super(data);
}
/**
* {@inheritDoc}
*/
@Override
public int size() {
return super.size();
}
/**
* {@inheritDoc}
*/
@Override
@NotNull
public Iterator iterator() {
return super.iterator();
}
/**
* {@inheritDoc}
*/
@Override
public void addEntry(@Nullable final Object value) {
super.add(value);
}
/**
* {@inheritDoc}
*/
@Override
public void insertEntry(final int index, @Nullable final Object value) throws IndexOutOfBoundsException {
super.add(index, value);
}
/**
* {@inheritDoc}
*/
@Override
public void setEntry(final int index, @Nullable final Object value) throws IndexOutOfBoundsException {
super.set(index, value);
}
/**
* {@inheritDoc}
*/
@Override
public void unsetEntry(final int index) throws IndexOutOfBoundsException {
super.remove(index);
}
/**
* {@inheritDoc}
*/
@Override
public boolean isNull(final int index) {
return index >= 0 && index < this.size() && this.get(index) == null;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isBoolean(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Boolean;
}
/**
* {@inheritDoc}
*/
@Override
public boolean getBoolean(final int index) {
return this.getBoolean(index, false);
}
/**
* {@inheritDoc}
*/
@Override
public boolean getBoolean(final int index, final boolean def) {
return this.isBoolean(index) ? (Boolean) this.get(index) : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isByte(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Number;
}
/**
* {@inheritDoc}
*/
@Override
public byte getByte(final int index) {
return this.getByte(index, (byte) 0);
}
/**
* {@inheritDoc}
*/
@Override
public byte getByte(final int index, final byte def) {
if (index < 0 || index >= this.size()) {
return def;
}
final Object value = this.get(index);
return value instanceof Number ? ((Number) value).byteValue() : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isShort(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Number;
}
/**
* {@inheritDoc}
*/
@Override
public short getShort(final int index) {
return this.getShort(index, (short) 0);
}
/**
* {@inheritDoc}
*/
@Override
public short getShort(final int index, final short def) {
if (index < 0 || index >= this.size()) {
return def;
}
final Object value = this.get(index);
return value instanceof Number ? ((Number) value).shortValue() : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isInteger(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Number;
}
/**
* {@inheritDoc}
*/
@Override
public int getInteger(final int index) {
return this.getInteger(index, 0);
}
/**
* {@inheritDoc}
*/
@Override
public int getInteger(final int index, final int def) {
if (index < 0 || index >= this.size()) {
return def;
}
final Object value = this.get(index);
return value instanceof Number ? ((Number) value).intValue() : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isLong(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Number;
}
/**
* {@inheritDoc}
*/
@Override
public long getLong(final int index) {
return this.getLong(index, 0L);
}
/**
* {@inheritDoc}
*/
@Override
public long getLong(final int index, final long def) {
if (index < 0 || index >= this.size()) {
return def;
}
final Object value = this.get(index);
return value instanceof Number ? ((Number) value).longValue() : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isFloat(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Number;
}
/**
* {@inheritDoc}
*/
@Override
public float getFloat(final int index) {
return this.getFloat(index, 0.0F);
}
/**
* {@inheritDoc}
*/
@Override
public float getFloat(final int index, final float def) {
if (index < 0 || index >= this.size()) {
return def;
}
final Object value = this.get(index);
return value instanceof Number ? ((Number) value).floatValue() : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isDouble(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof Number;
}
/**
* {@inheritDoc}
*/
@Override
public double getDouble(final int index) {
return this.getDouble(index, 0.0D);
}
/**
* {@inheritDoc}
*/
@Override
public double getDouble(final int index, final double def) {
if (index < 0 || index >= this.size()) {
return def;
}
final Object value = this.get(index);
return value instanceof Number ? ((Number) value).doubleValue() : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isString(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof String;
}
/**
* {@inheritDoc}
*/
@Override
@Nullable
public String getString(final int index) {
return this.getString(index, null);
}
/**
* {@inheritDoc}
*/
@Override
@Contract("_, !null -> !null")
@Nullable
public String getString(final int index, @Nullable final String def) {
return this.isString(index) ? (String) this.get(index) : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isArray(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof JSONArray;
}
/**
* {@inheritDoc}
*/
@Override
@Nullable
public JSONArray getArray(final int index) {
return this.getArray(index, null);
}
/**
* {@inheritDoc}
*/
@Override
@Contract("_, !null -> !null")
@Nullable
public JSONArray getArray(final int index, @Nullable final JSONArray def) {
return this.isArray(index) ? (JSONArray) this.get(index) : def;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isObject(final int index) {
return index >= 0 && index < this.size() && this.get(index) instanceof JSONObject;
}
/**
* {@inheritDoc}
*/
@Override
@Nullable
public JSONObject getObject(final int index) {
return this.getObject(index, null);
}
/**
* {@inheritDoc}
*/
@Override
@Contract("_, !null -> !null")
@Nullable
public JSONObject getObject(final int index, @Nullable final JSONObject def) {
return this.isObject(index) ? (JSONObject) this.get(index) : def;
}
/**
* {@inheritDoc}
*/
@Override
@NotNull
public String serialize() throws JSONException {
final StringBuilder builder = new StringBuilder();
final Iterator iterator = this.iterator();
int index = 1;
builder.append("[");
while (iterator.hasNext()) {
if (index > 1) {
builder.append(",");
}
builder.append(JSONParser.serialize(iterator.next()));
index++;
}
builder.append("]");
return builder.toString();
}
}
