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/*
* Copyright (C) 2014-2024 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* 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.helger.json;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Iterator;
import java.util.Map;
import java.util.function.BiConsumer;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;
import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.ReturnsMutableCopy;
import com.helger.commons.collection.impl.CommonsLinkedHashMap;
import com.helger.commons.collection.impl.ICommonsList;
import com.helger.commons.collection.impl.ICommonsOrderedMap;
import com.helger.commons.collection.impl.ICommonsOrderedSet;
import com.helger.commons.hashcode.HashCodeGenerator;
import com.helger.commons.io.stream.StreamHelper;
import com.helger.commons.state.EChange;
import com.helger.commons.string.ToStringGenerator;
import com.helger.json.serialize.JsonReader;
/**
* Default implementation of {@link IJsonObject}.
*
* @author Philip Helger
*/
@NotThreadSafe
public class JsonObject implements IJsonObject
{
public static final int DEFAULT_INITIAL_CAPACITY = 16;
private ICommonsOrderedMap m_aValues;
public JsonObject ()
{
this (DEFAULT_INITIAL_CAPACITY);
}
public JsonObject (@Nonnegative final int nInitialCapacity)
{
m_aValues = new CommonsLinkedHashMap <> (nInitialCapacity);
}
public JsonObject (@Nonnull final Map aJsons)
{
ValueEnforcer.notNull (aJsons, "Jsons");
m_aValues = new CommonsLinkedHashMap <> (aJsons);
}
private void writeObject (@Nonnull final ObjectOutputStream aOOS) throws IOException
{
aOOS.writeInt (m_aValues.size ());
final String sJson = getAsJsonString ();
StreamHelper.writeSafeUTF (aOOS, sJson);
}
private void readObject (@Nonnull final ObjectInputStream aOIS) throws IOException
{
final int nInitialSize = aOIS.readInt ();
m_aValues = new CommonsLinkedHashMap <> (nInitialSize);
final String sJson = StreamHelper.readSafeUTF (aOIS);
final JsonObject aJson = (JsonObject) JsonReader.readFromString (sJson);
if (aJson == null)
throw new IOException ("Failed to parse JSON object:\n" + sJson);
m_aValues.putAll (aJson.m_aValues);
}
public final boolean isArray ()
{
return false;
}
public final boolean isObject ()
{
return true;
}
public final boolean isValue ()
{
return false;
}
@Nonnegative
public int size ()
{
return m_aValues.size ();
}
public boolean isEmpty ()
{
return m_aValues.isEmpty ();
}
@Nonnull
public Iterator > iterator ()
{
return m_aValues.entrySet ().iterator ();
}
@Nonnull
public JsonObject addJson (@Nonnull final String sName, @Nonnull final IJson aValue)
{
ValueEnforcer.notNull (sName, "Name");
ValueEnforcer.notNull (aValue, "Value");
m_aValues.put (sName, aValue);
return this;
}
@Nullable
public IJson removeKeyAndReturnValue (@Nullable final String sName)
{
return m_aValues.remove (sName);
}
@Nonnull
public EChange removeKey (@Nullable final String sName)
{
return m_aValues.removeObject (sName);
}
public boolean containsKey (@Nullable final String sName)
{
return m_aValues.containsKey (sName);
}
@Nonnull
@ReturnsMutableCopy
public ICommonsOrderedSet keySet ()
{
return m_aValues.copyOfKeySet ();
}
@Nonnull
@ReturnsMutableCopy
public ICommonsList values ()
{
return m_aValues.copyOfValues ();
}
@Nullable
public IJson get (@Nullable final String sName)
{
return m_aValues.get (sName);
}
@Nonnull
@ReturnsMutableCopy
public ICommonsOrderedMap getAll ()
{
return m_aValues.getClone ();
}
public void forEach (@Nonnull final BiConsumer super String, ? super IJson> aConsumer)
{
m_aValues.forEach (aConsumer);
}
public boolean containsValue (@Nullable final IJson aValue)
{
return aValue != null && m_aValues.containsValue (aValue);
}
@Nonnull
@ReturnsMutableCopy
public ICommonsOrderedMap getClonedValues ()
{
final ICommonsOrderedMap ret = new CommonsLinkedHashMap <> ();
for (final Map.Entry aEntry : m_aValues.entrySet ())
ret.put (aEntry.getKey (), aEntry.getValue ().getClone ());
return ret;
}
@Nonnull
public JsonObject getClone ()
{
return new JsonObject (getClonedValues ());
}
@Override
public boolean equals (final Object o)
{
if (o == this)
return true;
if (o == null || !getClass ().equals (o.getClass ()))
return false;
final JsonObject rhs = (JsonObject) o;
return m_aValues.equals (rhs.m_aValues);
}
@Override
public int hashCode ()
{
return new HashCodeGenerator (this).append (m_aValues).getHashCode ();
}
@Override
public String toString ()
{
return new ToStringGenerator (this).append ("values", m_aValues).getToString ();
}
}
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