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Default provider for JSR 374:Java API for Processing JSON
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012-2017 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://oss.oracle.com/licenses/CDDL+GPL-1.1
* or LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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package org.glassfish.json;
import org.glassfish.json.api.BufferPool;
import javax.json.*;
import java.io.StringWriter;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
/**
* JsonArrayBuilder implementation
*
* @author Jitendra Kotamraju
* @author Kin-man Chung
*/
class JsonArrayBuilderImpl implements JsonArrayBuilder {
private ArrayList valueList;
private final BufferPool bufferPool;
JsonArrayBuilderImpl(BufferPool bufferPool) {
this.bufferPool = bufferPool;
}
JsonArrayBuilderImpl(JsonArray array, BufferPool bufferPool) {
this.bufferPool = bufferPool;
valueList = new ArrayList<>();
valueList.addAll(array);
}
JsonArrayBuilderImpl(Collection collection, BufferPool bufferPool) {
this.bufferPool = bufferPool;
valueList = new ArrayList<>();
populate(collection);
}
@Override
public JsonArrayBuilder add(JsonValue value) {
validateValue(value);
addValueList(value);
return this;
}
@Override
public JsonArrayBuilder add(String value) {
validateValue(value);
addValueList(new JsonStringImpl(value));
return this;
}
@Override
public JsonArrayBuilder add(BigDecimal value) {
validateValue(value);
addValueList(JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(BigInteger value) {
validateValue(value);
addValueList(JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(int value) {
addValueList(JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(long value) {
addValueList(JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(double value) {
addValueList(JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(boolean value) {
addValueList(value ? JsonValue.TRUE : JsonValue.FALSE);
return this;
}
@Override
public JsonArrayBuilder addNull() {
addValueList(JsonValue.NULL);
return this;
}
@Override
public JsonArrayBuilder add(JsonObjectBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_OBJECT_BUILDER_NULL());
}
addValueList(builder.build());
return this;
}
@Override
public JsonArrayBuilder add(JsonArrayBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_ARRAY_BUILDER_NULL());
}
addValueList(builder.build());
return this;
}
@Override
public JsonArrayBuilder addAll(JsonArrayBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_ARRAY_BUILDER_NULL());
}
if (valueList == null) {
valueList = new ArrayList<>();
}
valueList.addAll(builder.build());
return this;
}
@Override
public JsonArrayBuilder add(int index, JsonValue value) {
validateValue(value);
addValueList(index, value);
return this;
}
@Override
public JsonArrayBuilder add(int index, String value) {
validateValue(value);
addValueList(index, new JsonStringImpl(value));
return this;
}
@Override
public JsonArrayBuilder add(int index, BigDecimal value) {
validateValue(value);
addValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(int index, BigInteger value) {
validateValue(value);
addValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(int index, int value) {
addValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(int index, long value) {
addValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(int index, double value) {
addValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder add(int index, boolean value) {
addValueList(index, value ? JsonValue.TRUE : JsonValue.FALSE);
return this;
}
@Override
public JsonArrayBuilder addNull(int index) {
addValueList(index, JsonValue.NULL);
return this;
}
@Override
public JsonArrayBuilder add(int index, JsonObjectBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_OBJECT_BUILDER_NULL());
}
addValueList(index, builder.build());
return this;
}
@Override
public JsonArrayBuilder add(int index, JsonArrayBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_OBJECT_BUILDER_NULL());
}
addValueList(index, builder.build());
return this;
}
@Override
public JsonArrayBuilder set(int index, JsonValue value) {
validateValue(value);
setValueList(index, value);
return this;
}
@Override
public JsonArrayBuilder set(int index, String value) {
validateValue(value);
setValueList(index, new JsonStringImpl(value));
return this;
}
@Override
public JsonArrayBuilder set(int index, BigDecimal value) {
validateValue(value);
setValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder set(int index, BigInteger value) {
validateValue(value);
setValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder set(int index, int value) {
setValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder set(int index, long value) {
setValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder set(int index, double value) {
setValueList(index, JsonNumberImpl.getJsonNumber(value));
return this;
}
@Override
public JsonArrayBuilder set(int index, boolean value) {
setValueList(index, value ? JsonValue.TRUE : JsonValue.FALSE);
return this;
}
@Override
public JsonArrayBuilder setNull(int index) {
setValueList(index, JsonValue.NULL);
return this;
}
@Override
public JsonArrayBuilder set(int index, JsonObjectBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_OBJECT_BUILDER_NULL());
}
setValueList(index, builder.build());
return this;
}
@Override
public JsonArrayBuilder set(int index, JsonArrayBuilder builder) {
if (builder == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_OBJECT_BUILDER_NULL());
}
setValueList(index, builder.build());
return this;
}
@Override
public JsonArrayBuilder remove(int index) {
if (valueList == null) {
throw new IndexOutOfBoundsException(JsonMessages.ARRBUILDER_VALUELIST_NULL(index, 0));
}
valueList.remove(index);
return this;
}
@Override
public JsonArray build() {
List snapshot;
if (valueList == null) {
snapshot = Collections.emptyList();
} else {
// Should we trim to minimize storage ?
// valueList.trimToSize();
snapshot = Collections.unmodifiableList(valueList);
}
valueList = null;
return new JsonArrayImpl(snapshot, bufferPool);
}
private void populate(Collection collection) {
for (Object value : collection) {
if (value != null && value instanceof Optional) {
((Optional) value).ifPresent(v ->
this.valueList.add(MapUtil.handle(v, bufferPool)));
} else {
this.valueList.add(MapUtil.handle(value, bufferPool));
}
}
}
private void addValueList(JsonValue value) {
if (valueList == null) {
valueList = new ArrayList<>();
}
valueList.add(value);
}
private void addValueList(int index, JsonValue value) {
if (valueList == null) {
valueList = new ArrayList<>();
}
valueList.add(index, value);
}
private void setValueList(int index, JsonValue value) {
if (valueList == null) {
throw new IndexOutOfBoundsException(JsonMessages.ARRBUILDER_VALUELIST_NULL(index, 0));
}
valueList.set(index, value);
}
private void validateValue(Object value) {
if (value == null) {
throw new NullPointerException(JsonMessages.ARRBUILDER_VALUE_NULL());
}
}
private static final class JsonArrayImpl extends AbstractList implements JsonArray {
private final List valueList; // Unmodifiable
private final BufferPool bufferPool;
JsonArrayImpl(List valueList, BufferPool bufferPool) {
this.valueList = valueList;
this.bufferPool = bufferPool;
}
@Override
public int size() {
return valueList.size();
}
@Override
public JsonObject getJsonObject(int index) {
return (JsonObject)valueList.get(index);
}
@Override
public JsonArray getJsonArray(int index) {
return (JsonArray)valueList.get(index);
}
@Override
public JsonNumber getJsonNumber(int index) {
return (JsonNumber)valueList.get(index);
}
@Override
public JsonString getJsonString(int index) {
return (JsonString)valueList.get(index);
}
@Override
@SuppressWarnings("unchecked")
public List getValuesAs(Class clazz) {
return (List)valueList;
}
@Override
public String getString(int index) {
return getJsonString(index).getString();
}
@Override
public String getString(int index, String defaultValue) {
try {
return getString(index);
} catch (Exception e) {
return defaultValue;
}
}
@Override
public int getInt(int index) {
return getJsonNumber(index).intValue();
}
@Override
public int getInt(int index, int defaultValue) {
try {
return getInt(index);
} catch (Exception e) {
return defaultValue;
}
}
@Override
public boolean getBoolean(int index) {
JsonValue jsonValue = get(index);
if (jsonValue == JsonValue.TRUE) {
return true;
} else if (jsonValue == JsonValue.FALSE) {
return false;
} else {
throw new ClassCastException();
}
}
@Override
public boolean getBoolean(int index, boolean defaultValue) {
try {
return getBoolean(index);
} catch (Exception e) {
return defaultValue;
}
}
@Override
public boolean isNull(int index) {
return valueList.get(index).equals(JsonValue.NULL);
}
@Override
public ValueType getValueType() {
return ValueType.ARRAY;
}
@Override
public JsonValue get(int index) {
return valueList.get(index);
}
@Override
public String toString() {
StringWriter sw = new StringWriter();
try (JsonWriter jw = new JsonWriterImpl(sw, bufferPool)) {
jw.write(this);
}
return sw.toString();
}
@Override
public JsonArray asJsonArray() {
return this;
}
}
}
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