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The Aliyun OSS SDK for Java used for accessing Aliyun Object Storage Service, includes all service and dependent JARs.
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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.aliyun.oss.event;

import static com.aliyun.oss.event.ProgressEventType.REQUEST_CONTENT_LENGTH_EVENT;
import static com.aliyun.oss.event.ProgressEventType.REQUEST_BYTE_TRANSFER_EVENT;
import static com.aliyun.oss.event.ProgressEventType.RESPONSE_CONTENT_LENGTH_EVENT;
import static com.aliyun.oss.event.ProgressEventType.RESPONSE_BYTE_TRANSFER_EVENT;

public class ProgressPublisher {

    public static void publishProgress(final ProgressListener listener, final ProgressEventType eventType) {
        if (listener == ProgressListener.NOOP || listener == null || eventType == null) {
            return;
        }
        listener.progressChanged(new ProgressEvent(eventType));
    }

    public static void publishSelectProgress(final ProgressListener listener, final ProgressEventType eventType,
                                             final long scannedBytes) {
        if (listener == ProgressListener.NOOP || listener == null || eventType == null) {
            return;
        }
        listener.progressChanged(new ProgressEvent(eventType, scannedBytes));
    }

    public static void publishRequestContentLength(final ProgressListener listener, final long bytes) {
        publishByteCountEvent(listener, REQUEST_CONTENT_LENGTH_EVENT, bytes);
    }

    public static void publishRequestBytesTransferred(final ProgressListener listener, final long bytes) {
        publishByteCountEvent(listener, REQUEST_BYTE_TRANSFER_EVENT, bytes);
    }

    public static void publishResponseContentLength(final ProgressListener listener, final long bytes) {
        publishByteCountEvent(listener, RESPONSE_CONTENT_LENGTH_EVENT, bytes);
    }

    public static void publishResponseBytesTransferred(final ProgressListener listener, final long bytes) {
        publishByteCountEvent(listener, RESPONSE_BYTE_TRANSFER_EVENT, bytes);
    }

    private static void publishByteCountEvent(final ProgressListener listener, final ProgressEventType eventType,
            final long bytes) {
        if (listener == ProgressListener.NOOP || listener == null || bytes <= 0) {
            return;
        }
        listener.progressChanged(new ProgressEvent(eventType, bytes));
    }
}