TypeSafeHashMap.java
- /*
- * *********************************************************************************************************************
- *
- * TheseFoolishThings: Miscellaneous utilities
- * http://tidalwave.it/projects/thesefoolishthings
- *
- * Copyright (C) 2009 - 2023 by Tidalwave s.a.s. (http://tidalwave.it)
- *
- * *********************************************************************************************************************
- *
- * 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.
- *
- * *********************************************************************************************************************
- *
- * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
- * git clone https://github.com/tidalwave-it/thesefoolishthings-src
- *
- * *********************************************************************************************************************
- */
- package it.tidalwave.util.impl;
- import javax.annotation.Nonnegative;
- import javax.annotation.Nonnull;
- import javax.annotation.concurrent.Immutable;
- import java.util.Collection;
- import java.util.HashMap;
- import java.util.Iterator;
- import java.util.Map;
- import java.util.Set;
- import java.util.concurrent.CopyOnWriteArraySet;
- import java.util.function.BiConsumer;
- import java.io.Serializable;
- import it.tidalwave.util.Key;
- import it.tidalwave.util.NotFoundException;
- import it.tidalwave.util.TypeSafeMap;
- import lombok.EqualsAndHashCode;
- /***********************************************************************************************************************
- *
- * An implementation of {@link TypeSafeMap}. This class is not part of the public API.
- *
- * @author Fabrizio Giudici
- *
- **********************************************************************************************************************/
- @Immutable @EqualsAndHashCode
- public class TypeSafeHashMap implements TypeSafeMap, Serializable
- {
- private static final long serialVersionUID = 564564576856746L;
- @Nonnull
- private final Map<Key<?>, Object> map;
- /*******************************************************************************************************************
- *
- *
- ******************************************************************************************************************/
- public TypeSafeHashMap (@Nonnull final Map<Key<?>, Object> map)
- {
- this(new HashMap<>(), false);
- this.map.putAll(map);
- }
- /*******************************************************************************************************************
- *
- *
- *
- ******************************************************************************************************************/
- /* package */ TypeSafeHashMap (@Nonnull final Map<Key<?>, Object> map, final boolean dummy)
- {
- this.map = map;
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public <T> T get (@Nonnull final Key<T> key)
- throws NotFoundException
- {
- return NotFoundException.throwWhenNull(key.getType().cast(map.get(key)), "not found: %s", key);
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override
- public boolean containsKey (@Nonnull final Key<?> key)
- {
- return map.containsKey(key);
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public <T> TypeSafeMap with (@Nonnull final Key<T> key, @Nonnull final T value)
- {
- final Map<Key<?>, Object> map = asMap();
- map.put(key, value);
- return new TypeSafeHashMap(map, true);
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public Set<Key<?>> keySet()
- {
- return new CopyOnWriteArraySet<>(map.keySet());
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public Collection<Object> values()
- {
- return map.values();
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public Set<Map.Entry<Key<?>, Object>> entrySet()
- {
- return map.entrySet();
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnegative
- public int size()
- {
- return map.size();
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public Iterator<Map.Entry<Key<?>, Object>> iterator()
- {
- return map.entrySet().iterator();
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public Map<Key<?>, Object> asMap()
- {
- return new HashMap<>(map);
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override
- public void forEach (@Nonnull final BiConsumer<? super Key<?>, ? super Object> action)
- {
- map.forEach(action);
- }
- /*******************************************************************************************************************
- *
- * {@inheritDoc}
- *
- ******************************************************************************************************************/
- @Override @Nonnull
- public String toString()
- {
- return map.toString();
- }
- }