com.amazonaws.mobileconnectors.s3.transferutility.UploadPartTask.java Source code

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Here is the source code for com.amazonaws.mobileconnectors.s3.transferutility.UploadPartTask.java

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/**
 * Copyright 2015-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.amazonaws.mobileconnectors.s3.transferutility;

import com.amazonaws.mobileconnectors.s3.transferutility.TransferService.NetworkInfoReceiver;
import com.amazonaws.retry.RetryUtils;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.model.UploadPartRequest;
import com.amazonaws.services.s3.model.UploadPartResult;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.concurrent.Callable;

class UploadPartTask implements Callable<Boolean> {
    private static final Log LOGGER = LogFactory.getLog(UploadPartTask.class);

    private final UploadPartRequest request;
    private final AmazonS3 s3;
    private final TransferDBUtil dbUtil;
    private final NetworkInfoReceiver networkInfoReceiver;

    public UploadPartTask(UploadPartRequest request, AmazonS3 s3, TransferDBUtil dbUtil) {
        this.request = request;
        this.s3 = s3;
        this.dbUtil = dbUtil;
        this.networkInfoReceiver = null;
    }

    public UploadPartTask(UploadPartRequest request, AmazonS3 s3, TransferDBUtil dbUtil,
            NetworkInfoReceiver networkInfoReceiver) {
        this.request = request;
        this.s3 = s3;
        this.dbUtil = dbUtil;
        this.networkInfoReceiver = networkInfoReceiver;
    }

    /*
     * Runs part upload task and returns whether successfully uploaded.
     */
    @Override
    public Boolean call() throws Exception {
        try {
            final UploadPartResult putPartResult = s3.uploadPart(request);
            dbUtil.updateState(request.getId(), TransferState.PART_COMPLETED);
            dbUtil.updateETag(request.getId(), putPartResult.getETag());
            return true;
        } catch (final Exception e) {
            if (RetryUtils.isInterrupted(e)) {
                // thread interrupted by user
                return false;
            }
            if (networkInfoReceiver != null && !networkInfoReceiver.isNetworkConnected()) {
                /*
                 * Network connection is being interrupted. Moving the TransferState
                 * to WAITING_FOR_NETWORK till the network availability resumes.
                 */
                dbUtil.updateState(request.getId(), TransferState.WAITING_FOR_NETWORK);
                LOGGER.debug(
                        "Network Connection Interrupted: " + "Moving the TransferState to WAITING_FOR_NETWORK");
            } else {
                dbUtil.updateState(request.getId(), TransferState.FAILED);
                LOGGER.error("Encountered error uploading part ", e);
            }
            throw e;
        }
    }
}