/*
* Copyright 2016 MongoDB, 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.mongodb.client;
import org.bson.BsonDocument;
import org.bson.BsonDocumentWrapper;
import org.bson.codecs.configuration.CodecRegistry;
import org.bson.conversions.Bson;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
public final class ImmutableDocument implements Map<String, Object>, Bson {
private final Map<String, Object> immutableDocument;
/**
* Creates a Document instance initialized with the given map.
*
* @param map initial map
*/
public ImmutableDocument(final Map<String, Object> map) {
immutableDocument = Collections.unmodifiableMap(new LinkedHashMap<String, Object>(map));
}
@Override
public int size() {
return immutableDocument.size();
}
@Override
public boolean isEmpty() {
return immutableDocument.isEmpty();
}
@Override
public boolean containsKey(final Object key) {
return immutableDocument.containsKey(key);
}
@Override
public boolean containsValue(final Object value) {
return immutableDocument.containsValue(value);
}
@Override
public Object get(final Object key) {
return immutableDocument.get(key);
}
@Override
public Object put(final String key, final Object value) {
throw new UnsupportedOperationException();
}
@Override
public Object remove(final Object key) {
throw new UnsupportedOperationException();
}
@Override
public void putAll(final Map<? extends String, ?> m) {
throw new UnsupportedOperationException();
}
@Override
public void clear() {
throw new UnsupportedOperationException();
}
@Override
public Set<String> keySet() {
return immutableDocument.keySet();
}
@Override
public Collection<Object> values() {
return immutableDocument.values();
}
@Override
public Set<Entry<String, Object>> entrySet() {
return immutableDocument.entrySet();
}
@Override
public <TDocument> BsonDocument toBsonDocument(final Class<TDocument> tDocumentClass, final CodecRegistry codecRegistry) {
return new BsonDocumentWrapper<ImmutableDocument>(this, codecRegistry.get(ImmutableDocument.class));
}
}