com.mongodb.DBDecoderAdapter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aem-sdk-api Show documentation

The Adobe Experience Manager SDK

There is a newer version: 2024.11.18751.20241128T090041Z-241100

/*
 * Copyright 2008-present 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;

import com.mongodb.connection.BufferProvider;
import com.mongodb.connection.ByteBufferBsonOutput;
import org.bson.BsonBinaryWriter;
import org.bson.BsonReader;
import org.bson.codecs.Decoder;
import org.bson.codecs.DecoderContext;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

// @deprecated Usage of this API is not supported in AEM as a Cloud Service.
@Deprecated(since = "2021-05-27")
class DBDecoderAdapter implements Decoder {

    private final DBDecoder decoder;

    private final DBCollection collection;

    private final BufferProvider bufferProvider;

    DBDecoderAdapter(final DBDecoder decoder, final DBCollection collection, final BufferProvider bufferProvider) {
        this.decoder = decoder;
        this.collection = collection;
        this.bufferProvider = bufferProvider;
    }

    @Override
    public DBObject decode(final BsonReader reader, final DecoderContext decoderContext) {
        ByteBufferBsonOutput bsonOutput = new ByteBufferBsonOutput(bufferProvider);
        BsonBinaryWriter binaryWriter = new BsonBinaryWriter(bsonOutput);
        try {
            binaryWriter.pipe(reader);
            BufferExposingByteArrayOutputStream byteArrayOutputStream = new BufferExposingByteArrayOutputStream(binaryWriter.getBsonOutput().getSize());
            bsonOutput.pipe(byteArrayOutputStream);
            return decoder.decode(byteArrayOutputStream.getInternalBytes(), collection);
        } catch (IOException e) {
            // impossible with a byte array output stream
            throw new MongoInternalException("An unlikely IOException thrown.", e);
        } finally {
            binaryWriter.close();
            bsonOutput.close();
        }
    }

    // Just so we don't have to copy the buffer@deprecated Usage of this API is not supported in AEM as a Cloud Service.
    @Deprecated(since = "2021-05-27")
    private static class BufferExposingByteArrayOutputStream extends ByteArrayOutputStream {

        BufferExposingByteArrayOutputStream(final int size) {
            super(size);
        }

        byte[] getInternalBytes() {
            return buf;
        }
    }
}