Example usage for javax.activation DataSource getInputStream

List of usage examples for javax.activation DataSource getInputStream

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Introduction

In this page you can find the example usage for javax.activation DataSource getInputStream.

Prototype

public InputStream getInputStream() throws IOException;

Source Link

Document

This method returns an InputStream representing the data and throws the appropriate exception if it can not do so.

Usage

From source file:net.www_eee.portal.channels.ProxyChannel.java

/**
 * Construct the {@link HttpUriRequest} that will be used to {@linkplain #doProxyRequest(Page.Request, Channel.Mode)
 * proxy} content while fulfilling the specified <code>pageRequest</code>. This method will
 * {@linkplain #getProxiedFileURL(Page.Request, Channel.Mode, boolean) calculate} the proxied file URL,
 * {@linkplain #createProxyRequestObject(Page.Request, Channel.Mode, URL) create} the appropriate type of request
 * object, set it's {@linkplain HttpUriRequest#setHeader(String, String) headers}, and, if this channel is
 * {@linkplain net.www_eee.portal.Page.Request#isMaximized(Channel) maximized}, set any
 * {@linkplain HttpEntityEnclosingRequest#setEntity(HttpEntity) entity} that was
 * {@linkplain net.www_eee.portal.Page.Request#getEntity() provided} by the <code>pageRequest</code>.
 * /* w w  w  .ja  va  2s. c o  m*/
 * @param pageRequest The {@link net.www_eee.portal.Page.Request Request} currently being processed.
 * @param mode The {@link net.www_eee.portal.Channel.Mode Mode} of the request.
 * @param proxyClient The {@link #createProxyClient(Page.Request) HttpClient} performing the proxy request.
 * @return The proxy {@link HttpUriRequest} object.
 * @throws WWWEEEPortal.Exception If a problem occurred while determining the result.
 * @throws WebApplicationException If a problem occurred while determining the result.
 * @see #doProxyRequest(Page.Request, Channel.Mode)
 * @see #PROXY_REQUEST_HOOK
 */
protected HttpRequestBase createProxyRequest(final Page.Request pageRequest, final Mode mode,
        final CloseableHttpClient proxyClient) throws WWWEEEPortal.Exception, WebApplicationException {
    final URL proxiedFileURL = getProxiedFileURL(pageRequest, mode, true);

    final Object[] context = new Object[] { mode, proxiedFileURL };
    HttpRequestBase proxyRequest = PROXY_REQUEST_HOOK.value(plugins, context, pageRequest);
    if (proxyRequest == null) {

        proxyRequest = createProxyRequestObject(pageRequest, mode, proxiedFileURL);

        final String userAgent = getProxyRequestUserAgentHeader(pageRequest, mode, proxyClient, proxiedFileURL,
                proxyRequest);
        if (userAgent != null)
            proxyRequest.setHeader("User-Agent", userAgent);
        final String acceptLanguage = getProxyRequestAcceptLanguageHeader(pageRequest, mode, proxyClient,
                proxiedFileURL, proxyRequest);
        if (acceptLanguage != null)
            proxyRequest.setHeader("Accept-Language", acceptLanguage);
        final String accept = getProxyRequestAcceptHeader(pageRequest, mode, proxyClient, proxiedFileURL,
                proxyRequest);
        if (accept != null)
            proxyRequest.setHeader("Accept", accept);
        final String authorization = getProxyRequestAuthorizationHeader(pageRequest, mode, proxyClient,
                proxiedFileURL, proxyRequest);
        if (authorization != null)
            proxyRequest.setHeader("Authorization", authorization);

        if (Mode.RESOURCE.equals(mode)) {
            final Optional<String> ifMatch = RESTUtil.getFirstHeaderValue(pageRequest.getHttpHeaders(),
                    "If-Match", Function.identity());
            if (ifMatch.isPresent())
                proxyRequest.setHeader("If-Match", ifMatch.get());
            final Optional<String> ifModifiedSince = RESTUtil.getFirstHeaderValue(pageRequest.getHttpHeaders(),
                    "If-Modified-Since", Function.identity());
            if (ifModifiedSince.isPresent())
                proxyRequest.setHeader("If-Modified-Since", ifModifiedSince.get());
            final Optional<String> ifNoneMatch = RESTUtil.getFirstHeaderValue(pageRequest.getHttpHeaders(),
                    "If-None-Match", Function.identity());
            if (ifNoneMatch.isPresent())
                proxyRequest.setHeader("If-None-Match", ifNoneMatch.get());
            final Optional<String> ifUnmodifiedSince = RESTUtil.getFirstHeaderValue(
                    pageRequest.getHttpHeaders(), "If-Unmodified-Since", Function.identity());
            if (ifUnmodifiedSince.isPresent())
                proxyRequest.setHeader("If-Unmodified-Since", ifUnmodifiedSince.get());
        }

        if (!isCacheControlClientDirectivesDisabled(pageRequest)) {
            final Optional<CacheControl> cacheControl = RESTUtil
                    .getFirstHeaderValue(pageRequest.getHttpHeaders(), "Cache-Control", CacheControl::valueOf);
            if (cacheControl.isPresent())
                proxyRequest.setHeader("Cache-Control", cacheControl.get().toString());
        }

        if (pageRequest.isMaximized(this)) {

            final MediaType contentType = pageRequest.getHttpHeaders().getMediaType();
            if (contentType != null)
                proxyRequest.setHeader("Content-Type", contentType.toString());

            final DataSource entity = pageRequest.getEntity();
            if ((entity != null) && (proxyRequest instanceof HttpEntityEnclosingRequest)) {
                try {
                    final Optional<String> contentLengthString = RESTUtil.getFirstHeaderValue(
                            pageRequest.getHttpHeaders(), "Content-Length", Function.identity());
                    final HttpEntity httpEntity = new InputStreamEntity(entity.getInputStream(),
                            (contentLengthString.isPresent()) ? Long.parseLong(contentLengthString.get()) : -1);
                    ((HttpEntityEnclosingRequest) proxyRequest).setEntity(httpEntity);
                } catch (NumberFormatException nfe) {
                    throw new WebApplicationException(nfe, Response.Status.INTERNAL_SERVER_ERROR);
                } catch (IOException ioe) {
                    throw new WWWEEEPortal.OperationalException(ioe);
                }
            }

        } // if (pageRequest.isMaximized(this))

    } // if (proxyRequest == null)
    proxyRequest = PROXY_REQUEST_HOOK
            .requireFilteredResult(PROXY_REQUEST_HOOK.filter(plugins, context, pageRequest, proxyRequest));
    return proxyRequest;
}

From source file:de.innovationgate.wgpublisher.WGPDispatcher.java

private void writeWholeData(DataSource data, HttpServletRequest request, HttpServletResponse response,
        String characterEncoding, String dbHint)
        throws IOException, HttpErrorException, UnsupportedEncodingException {

    Reader reader = null;//  ww  w . ja v  a2s. co m
    InputStream in = data.getInputStream();
    if (in == null) {
        throw new HttpErrorException(404, "File not found: " + data.getName(), dbHint);
    }

    try {
        if (!isBinary(request, response)) {
            // this is a textual reponse
            if (characterEncoding != null && !characterEncoding.equals(response.getCharacterEncoding())) {
                reader = new InputStreamReader(in, characterEncoding);
                WGUtils.inToOut(reader, response.getWriter(), 2048);
            } else {
                WGUtils.inToOut(in, response.getOutputStream(), 2048);
            }
        } else {
            WGUtils.inToOut(in, response.getOutputStream(), 2048);
        }
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
            }
        }
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:de.innovationgate.wgpublisher.WGPDispatcher.java

private void writeRangesData(DataSource data, List<AcceptRange> ranges, HttpServletResponse response,
        String dbHint, long size) throws IOException, HttpErrorException, UnsupportedEncodingException {

    ServletOutputStream out = response.getOutputStream();
    for (AcceptRange range : ranges) {
        InputStream in = data.getInputStream();
        if (in == null) {
            throw new HttpErrorException(404, "File not found: " + data.getName(), dbHint);
        }/* www. j  av  a2 s. c om*/

        if (ranges.size() != 1) {
            out.println();
            out.println("--" + BYTERANGE_BOUNDARY);
            out.println("Content-Type: " + data.getContentType());
            out.println("Content-Range: bytes " + range.from + "-" + range.to + "/" + size);
            out.println();
        }

        if (range.from > 0) {
            in.skip(range.from);
        }

        try {
            WGUtils.inToOutLimited(in, out, (new Long(range.to - range.from + 1)).intValue(), 2048);
            out.flush();
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                }
            }
        }
    }

    if (ranges.size() != 1) {
        out.println();
        out.print("--" + BYTERANGE_BOUNDARY + "--");
        out.flush();
    }

}

From source file:nl.clockwork.mule.ebms.util.EbMSMessageUtils.java

public static EbMSMessageContent EbMSMessageToEbMSMessageContent(EbMSMessage message) throws IOException {
    List<EbMSAttachment> attachments = new ArrayList<EbMSAttachment>();
    for (DataSource attachment : message.getAttachments())
        attachments.add(new EbMSAttachment(attachment.getName(), attachment.getContentType(),
                IOUtils.toByteArray(attachment.getInputStream())));

    return new EbMSMessageContent(new EbMSMessageContext(message.getMessageHeader()), attachments);
}

From source file:org.adempiere.webui.apps.FeedbackRequestWindow.java

protected void saveRequest() throws IOException {
    Trx trx = Trx.get(Trx.createTrxName("SaveNewRequest"), true);
    try {//from   w w w  .  j  av  a 2  s . co  m
        trx.start();
        MRequest request = createMRequest(trx);

        boolean success = request.save();
        if (success) {
            MAttachment attachment = null;
            for (DataSource ds : attachments) {
                if (attachment == null) {
                    attachment = new MAttachment(Env.getCtx(), 0, request.get_TrxName());
                    attachment.setAD_Table_ID(request.get_Table_ID());
                    attachment.setRecord_ID(request.get_ID());
                }

                attachment.addEntry(ds.getName(), IOUtils.toByteArray(ds.getInputStream()));
            }
            if (attachment != null)
                success = attachment.save();

            if (success)
                success = trx.commit();

        }

        if (success) {
            FDialog.info(0, null, Msg.getMsg(Env.getCtx(), "Saved"));
        } else {
            trx.rollback();
            FDialog.error(0, this, Msg.getMsg(Env.getCtx(), "SaveError"));
        }
    } finally {
        trx.close();
    }
}

From source file:org.ambraproject.service.article.FetchArticleServiceImpl.java

/**
 * For the articleInfo, get the article HTML
 *
 * @param article the articleInfo object
 *
 * @return the article HTML//from   w  ww. ja  v a 2  s .co m
 *
 * @throws ApplicationException
 * @throws NoSuchArticleIdException
 */
private String getTransformedArticle(final ArticleInfo article)
        throws ApplicationException, NoSuchArticleIdException {
    try {
        DataSource content = getArticleXML(article.getDoi());
        Document doc = articleTransformService.createDocBuilder().parse(content.getInputStream());

        doc = addExtraCitationInfo(doc, article.getCitedArticles());

        return articleTransformService.getTransformedDocument(doc);
    } catch (Exception e) {
        throw new ApplicationException(e);
    }
}

From source file:org.apache.axiom.om.util.ElementHelperTest.java

public void testGetTextAsStreamWithOMSourcedElement() throws Exception {
    OMFactory factory = OMAbstractFactory.getOMFactory();
    DataSource ds = new RandomDataSource(445566, 32, 128, 20000000);
    QName qname = new QName("a");
    Charset cs = Charset.forName("ascii");
    OMSourcedElement element = new OMSourcedElementImpl(qname, factory,
            new WrappedTextNodeOMDataSourceFromDataSource(qname, ds, cs));
    Reader in = ElementHelper.getTextAsStream(element, true);
    assertFalse(in instanceof StringReader);
    IOTestUtils.compareStreams(new InputStreamReader(ds.getInputStream(), cs), in);
}

From source file:org.apache.axiom.om.util.ElementHelperTest.java

public void testGetTextAsStreamWithoutCaching() throws Exception {
    XMLInputFactory factory = XMLInputFactory.newInstance();
    if (factory.getClass().getName().equals("com.bea.xml.stream.MXParserFactory")) {
        // Skip the test on the StAX reference implementation because it
        // causes an out of memory error
        return;/*ww  w  .  j  av  a2s . co  m*/
    }
    DataSource ds = new RandomDataSource(654321, 64, 128, 20000000);
    Vector/*<InputStream>*/ v = new Vector/*<InputStream>*/();
    v.add(new ByteArrayInputStream("<a>".getBytes("ascii")));
    v.add(ds.getInputStream());
    v.add(new ByteArrayInputStream("</a>".getBytes("ascii")));
    factory.setProperty(XMLInputFactory.IS_COALESCING, Boolean.FALSE);
    XMLStreamReader reader = factory.createXMLStreamReader(new SequenceInputStream(v.elements()), "ascii");
    OMElement element = new StAXOMBuilder(reader).getDocumentElement();
    Reader in = ElementHelper.getTextAsStream(element, false);
    IOTestUtils.compareStreams(new InputStreamReader(ds.getInputStream(), "ascii"), in);
}

From source file:org.apache.axiom.om.util.ElementHelperTest.java

public void testWriteTextToWithOMSourcedElement() throws Exception {
    OMFactory factory = OMAbstractFactory.getOMFactory();
    DataSource ds = new RandomDataSource(665544, 32, 128, 20000000);
    QName qname = new QName("a");
    OMSourcedElement element = new OMSourcedElementImpl(qname, factory,
            new WrappedTextNodeOMDataSourceFromDataSource(qname, ds, Charset.forName("ascii")));
    Reader in = new InputStreamReader(ds.getInputStream(), "ascii");
    Writer out = new CharacterStreamComparator(in);
    ElementHelper.writeTextTo(element, out, true); // cache doesn't matter here
    out.close();//from   w  w w  . j a v a 2s.  c o m
}

From source file:org.apache.axis.attachments.AttachmentPart.java

/**
 * Gets the content of this <CODE>AttachmentPart</CODE> object
 *   as a Java object. The type of the returned Java object
 *   depends on (1) the <CODE>DataContentHandler</CODE> object
 *   that is used to interpret the bytes and (2) the <CODE>
 *   Content-Type</CODE> given in the header.
 *
 *   <P>For the MIME content types "text/plain", "text/html" and
 *   "text/xml", the <CODE>DataContentHandler</CODE> object does
 *   the conversions to and from the Java types corresponding to
 *   the MIME types. For other MIME types,the <CODE>
 *   DataContentHandler</CODE> object can return an <CODE>
 *   InputStream</CODE> object that contains the content data as
 *   raw bytes.</P>//from  www  .  j  a  v  a  2 s .  c  om
 *
 *   <P>A JAXM-compliant implementation must, as a minimum,
 *   return a <CODE>java.lang.String</CODE> object corresponding
 *   to any content stream with a <CODE>Content-Type</CODE>
 *   value of <CODE>text/plain</CODE> and a <CODE>
 *   javax.xml.transform.StreamSource</CODE> object
 *   corresponding to a content stream with a <CODE>
 *   Content-Type</CODE> value of <CODE>text/xml</CODE>. For
 *   those content types that an installed <CODE>
 *   DataContentHandler</CODE> object does not understand, the
 *   <CODE>DataContentHandler</CODE> object is required to
 *   return a <CODE>java.io.InputStream</CODE> object with the
 *   raw bytes.</P>
 * @return a Java object with the content of this <CODE>
 *     AttachmentPart</CODE> object
 * @throws  SOAPException  if there is no content set
 *     into this <CODE>AttachmentPart</CODE> object or if there
 *     was a data transformation error
 */
public Object getContent() throws SOAPException {
    if (contentObject != null) {
        return contentObject;
    }

    if (datahandler == null) {
        throw new SOAPException(Messages.getMessage("noContent"));
    }

    javax.activation.DataSource ds = datahandler.getDataSource();
    InputStream is = null;
    try {
        is = ds.getInputStream();
        ;
    } catch (java.io.IOException io) {
        log.error(Messages.getMessage("javaIOException00"), io);
        throw new SOAPException(io);
    }
    if (ds.getContentType().equals("text/plain")) {
        try {
            byte[] bytes = new byte[is.available()];
            IOUtils.readFully(is, bytes);
            return new String(bytes);
        } catch (java.io.IOException io) {
            log.error(Messages.getMessage("javaIOException00"), io);
            throw new SOAPException(io);
        }
    } else if (ds.getContentType().equals("text/xml")) {
        return new StreamSource(is);
    } else if (ds.getContentType().equals("image/gif") || ds.getContentType().equals("image/jpeg")) {
        try {
            return ImageIOFactory.getImageIO().loadImage(is);
        } catch (Exception ex) {
            log.error(Messages.getMessage("javaIOException00"), ex);
            throw new SOAPException(ex);
        }
    }
    return is;
}