+++ /dev/null
-/*
- * Copyright (C) 2008 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;
-
-import java.math.BigDecimal;
-import java.math.BigInteger;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * A class representing an array type in Json. An array is a list of {@link JsonElement}s each of
- * which can be of a different type. This is an ordered list, meaning that the order in which
- * elements are added is preserved.
- *
- * @author Inderjeet Singh
- * @author Joel Leitch
- */
-public final class JsonArray extends JsonElement implements Iterable<JsonElement> {
- private final List<JsonElement> elements;
-
- /**
- * Creates an empty JsonArray.
- */
- public JsonArray() {
- elements = new ArrayList<JsonElement>();
- }
-
- @Override
- JsonArray deepCopy() {
- JsonArray result = new JsonArray();
- for (JsonElement element : elements) {
- result.add(element.deepCopy());
- }
- return result;
- }
-
- /**
- * Adds the specified element to self.
- *
- * @param element the element that needs to be added to the array.
- */
- public void add(JsonElement element) {
- if (element == null) {
- element = JsonNull.INSTANCE;
- }
- elements.add(element);
- }
-
- /**
- * Adds all the elements of the specified array to self.
- *
- * @param array the array whose elements need to be added to the array.
- */
- public void addAll(JsonArray array) {
- elements.addAll(array.elements);
- }
-
- /**
- * Returns the number of elements in the array.
- *
- * @return the number of elements in the array.
- */
- public int size() {
- return elements.size();
- }
-
- /**
- * Returns an iterator to navigate the elemetns of the array. Since the array is an ordered list,
- * the iterator navigates the elements in the order they were inserted.
- *
- * @return an iterator to navigate the elements of the array.
- */
- public Iterator<JsonElement> iterator() {
- return elements.iterator();
- }
-
- /**
- * Returns the ith element of the array.
- *
- * @param i the index of the element that is being sought.
- * @return the element present at the ith index.
- * @throws IndexOutOfBoundsException if i is negative or greater than or equal to the
- * {@link #size()} of the array.
- */
- public JsonElement get(int i) {
- return elements.get(i);
- }
-
- /**
- * convenience method to get this array as a {@link Number} if it contains a single element.
- *
- * @return get this element as a number if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid Number.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public Number getAsNumber() {
- if (elements.size() == 1) {
- return elements.get(0).getAsNumber();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a {@link String} if it contains a single element.
- *
- * @return get this element as a String if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid String.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public String getAsString() {
- if (elements.size() == 1) {
- return elements.get(0).getAsString();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a double if it contains a single element.
- *
- * @return get this element as a double if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid double.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public double getAsDouble() {
- if (elements.size() == 1) {
- return elements.get(0).getAsDouble();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a {@link BigDecimal} if it contains a single element.
- *
- * @return get this element as a {@link BigDecimal} if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive}.
- * @throws NumberFormatException if the element at index 0 is not a valid {@link BigDecimal}.
- * @throws IllegalStateException if the array has more than one element.
- * @since 1.2
- */
- @Override
- public BigDecimal getAsBigDecimal() {
- if (elements.size() == 1) {
- return elements.get(0).getAsBigDecimal();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a {@link BigInteger} if it contains a single element.
- *
- * @return get this element as a {@link BigInteger} if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive}.
- * @throws NumberFormatException if the element at index 0 is not a valid {@link BigInteger}.
- * @throws IllegalStateException if the array has more than one element.
- * @since 1.2
- */
- @Override
- public BigInteger getAsBigInteger() {
- if (elements.size() == 1) {
- return elements.get(0).getAsBigInteger();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a float if it contains a single element.
- *
- * @return get this element as a float if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid float.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public float getAsFloat() {
- if (elements.size() == 1) {
- return elements.get(0).getAsFloat();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a long if it contains a single element.
- *
- * @return get this element as a long if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid long.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public long getAsLong() {
- if (elements.size() == 1) {
- return elements.get(0).getAsLong();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as an integer if it contains a single element.
- *
- * @return get this element as an integer if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid integer.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public int getAsInt() {
- if (elements.size() == 1) {
- return elements.get(0).getAsInt();
- }
- throw new IllegalStateException();
- }
-
- @Override
- public byte getAsByte() {
- if (elements.size() == 1) {
- return elements.get(0).getAsByte();
- }
- throw new IllegalStateException();
- }
-
- @Override
- public char getAsCharacter() {
- if (elements.size() == 1) {
- return elements.get(0).getAsCharacter();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a primitive short if it contains a single element.
- *
- * @return get this element as a primitive short if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid short.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public short getAsShort() {
- if (elements.size() == 1) {
- return elements.get(0).getAsShort();
- }
- throw new IllegalStateException();
- }
-
- /**
- * convenience method to get this array as a boolean if it contains a single element.
- *
- * @return get this element as a boolean if it is single element array.
- * @throws ClassCastException if the element in the array is of not a {@link JsonPrimitive} and
- * is not a valid boolean.
- * @throws IllegalStateException if the array has more than one element.
- */
- @Override
- public boolean getAsBoolean() {
- if (elements.size() == 1) {
- return elements.get(0).getAsBoolean();
- }
- throw new IllegalStateException();
- }
-
- @Override
- public boolean equals(Object o) {
- return (o == this) || (o instanceof JsonArray && ((JsonArray) o).elements.equals(elements));
- }
-
- @Override
- public int hashCode() {
- return elements.hashCode();
- }
-}
projects / unical.git / blobdiff