Example usage for org.apache.commons.net.io CopyStreamAdapter addCopyStreamListener

Introduction

In this page you can find the example usage for org.apache.commons.net.io CopyStreamAdapter addCopyStreamListener.

Prototype

public void addCopyStreamListener(CopyStreamListener listener) 

Source Link

Document

Registers a CopyStreamListener to receive CopyStreamEvents.

Usage

From source file:fr.gael.dhus.olingo.v1.entity.Node.java

@Override
public ODataResponse getEntityMedia(ODataSingleProcessor processor) throws ODataException {
    initNode();/*  w  w w  . j a v  a2s  .  co  m*/
    if (hasStream()) {
        try {
            User u = V1Util.getCurrentUser();
            String user_name = (u == null ? null : u.getUsername());

            InputStream is = new BufferedInputStream(getStream());

            RegulatedInputStream.Builder builder = new RegulatedInputStream.Builder(is,
                    TrafficDirection.OUTBOUND);
            builder.userName(user_name);

            CopyStreamAdapter adapter = new CopyStreamAdapter();
            CopyStreamListener recorder = new DownloadActionRecordListener(this.getId(), this.getName(), u);
            CopyStreamListener closer = new DownloadStreamCloserListener(is);
            adapter.addCopyStreamListener(recorder);
            adapter.addCopyStreamListener(closer);
            builder.copyStreamListener(adapter);
            is = builder.build();

            String etag = getName() + "-" + getContentLength();

            // A priori Node never change, so the lastModified should be as
            // far as possible than today.
            long last_modified = System.currentTimeMillis() - ONE_YEAR_MS;

            // If node is not a data file, it cannot be downloaded and set to -1
            // As a stream exists, this control is probably obsolete.
            long content_length = getContentLength() == 0 ? -1 : getContentLength();

            return V1Util.prepareMediaResponse(etag, getName(), getContentType(), last_modified, content_length,
                    processor.getContext(), is);
        } catch (Exception e) {
            throw new ODataException("An exception occured while creating the stream for node " + getName(), e);
        }
    } else {
        throw new ODataException("No stream for node " + getName());
    }
}

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From source file:fr.gael.dhus.olingo.v1.entity.Product.java

@Override
public ODataResponse getEntityMedia(ODataSingleProcessor processor) throws ODataException {
    ODataResponse rsp = null;// www  . j  a  v  a2  s . com
    try {
        InputStream is = new BufferedInputStream(getInputStream());
        if (requiresControl()) {
            User u = V1Util.getCurrentUser();
            String user_name = (u == null ? null : u.getUsername());

            CopyStreamAdapter adapter = new CopyStreamAdapter();
            CopyStreamListener recorder = new DownloadActionRecordListener(product.getUuid(),
                    product.getIdentifier(), u);
            CopyStreamListener closer = new DownloadStreamCloserListener(is);
            adapter.addCopyStreamListener(recorder);
            adapter.addCopyStreamListener(closer);

            RegulatedInputStream.Builder builder = new RegulatedInputStream.Builder(is,
                    TrafficDirection.OUTBOUND);
            builder.userName(user_name);
            builder.copyStreamListener(adapter);

            is = builder.build();
        }

        // Computes ETag
        String etag = getChecksumValue();
        if (etag == null)
            etag = getId();
        String filename = new File(getDownloadablePath()).getName();
        // Prepare the HTTP header for stream transfer.
        rsp = V1Util.prepareMediaResponse(etag, filename, getContentType(), getCreationDate().getTime(),
                getContentLength(), processor.getContext(), is);
    } catch (Exception e) {
        String inner_message = ".";
        if (e.getMessage() != null)
            inner_message = " : " + e.getMessage();
        throw new ODataException("An exception occured while creating a stream" + inner_message, e);
    }
    return rsp;
}

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From source file:com.atomicleopard.thundr.ftp.commons.FTPClient.java

/**
 * Merge two copystream listeners, either or both of which may be null.
 *
 * @param local the listener used by this class, may be null
 * @return a merged listener or a single listener or null
 * @since 3.0//w  ww  .j av a2  s  .co  m
 */
private CopyStreamListener __mergeListeners(CopyStreamListener local) {
    if (local == null) {
        return __copyStreamListener;
    }
    if (__copyStreamListener == null) {
        return local;
    }
    // Both are non-null
    CopyStreamAdapter merged = new CopyStreamAdapter();
    merged.addCopyStreamListener(local);
    merged.addCopyStreamListener(__copyStreamListener);
    return merged;
}

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