Example usage for javax.servlet ServletContext getResourceAsStream

Introduction

In this page you can find the example usage for javax.servlet ServletContext getResourceAsStream.

Prototype

public InputStream getResourceAsStream(String path);

Source Link

Document

Returns the resource located at the named path as an InputStream object.

Usage

From source file:org.opentides.web.controller.ImageController.java

/**
 * Loads the default image // w  w w . jav a  2s . co m
 * @param request
 * @return
 */
private final byte[] defaultImage(HttpServletRequest request) {
    if (StringUtil.isEmpty(defaultImageLocation))
        return ImageUtil.getDefaultImage();
    else {
        HttpSession session = request.getSession();
        ServletContext sc = session.getServletContext();
        InputStream is = sc.getResourceAsStream(defaultImageLocation);
        byte[] barray;

        try {
            barray = IOUtils.toByteArray(is);
        } catch (IOException e) {
            _log.error("Failed to load default image [" + defaultImageLocation + "].", e);
            return ImageUtil.getDefaultImage();
        }

        return barray;
    }
}

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From source file:edu.cornell.mannlib.vitro.webapp.servlet.setup.SimpleReasonerSetup.java

/**
 * Read the names of the plugin classes classes.
 * /*  www.  jav  a  2  s.  com*/
 * If there is a problem, set a fatal error, and return an empty list.
 */
private List<String> readFileOfListeners(ServletContext ctx) {
    List<String> list = new ArrayList<String>();

    StartupStatus ss = StartupStatus.getBean(ctx);

    InputStream is = null;
    BufferedReader br = null;
    try {
        is = ctx.getResourceAsStream(FILE_OF_PLUGINS);
        br = new BufferedReader(new InputStreamReader(is));

        String line;
        while (null != (line = br.readLine())) {
            String trimmed = line.trim();
            if (!trimmed.isEmpty() && !trimmed.startsWith("#")) {
                list.add(trimmed);
            }
        }
    } catch (NullPointerException e) {
        // ignore the lack of file
    } catch (IOException e) {
        ss.fatal(this, "Failed while processing the list of startup listeners:  " + FILE_OF_PLUGINS, e);
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (IOException e) {
                log.error(e);
            }
        }
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                log.error(e);
            }
        }
    }

    log.debug("Classnames of reasoner plugins = " + list);
    return list;
}

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From source file:com.bah.bahdit.main.plugins.imageindex.ImageIndex.java

/**
 * Loads the necessary files from the properties file
 * called from FullTextIndex.configure//w  w w  . j a  va  2s .  co  m
 * 
 * @param context - passed from the servlet
 */
@SuppressWarnings("unchecked")
private void loadResources(ServletContext context) {
    try {
        // get the sample table from resources
        InputStream sample = context.getResourceAsStream(properties.getProperty(IMG_TAG_SAMPLE_TABLE));
        InputStream samplebuffer = new BufferedInputStream(sample);
        ObjectInput objectsample;
        objectsample = new ObjectInputStream(samplebuffer);
        tagSampleTable = (HashMap<String, Integer>) objectsample.readObject();

        tagSpellChecker = LevenshteinDistance.createSpellChecker(context, tagSampleTable);

    } catch (IOException e) {
        log.warn(e.getMessage());
    } catch (ClassNotFoundException e) {
        log.warn(e.getMessage());
    }
}

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From source file:org.jfree.eastwood.ChartServlet.java

private Font readFontResource(ServletContext ctx, String fontResourceParam, float fontSize)
        throws ServletException {

    if (!fontResourceParam.startsWith("/")) {
        fontResourceParam = "/" + fontResourceParam;
    }//from  w  w w . ja va  2s .co  m
    InputStream is = ctx.getResourceAsStream(fontResourceParam);
    if (is == null) {
        throw new ServletException("Font resource '" + fontResourceParam + "' not found");
    }
    try {
        return Font.createFont(Font.TRUETYPE_FONT, is).deriveFont(fontSize);
    } catch (FontFormatException e) {
        throw new ServletException("Font resource '" + fontResourceParam + "' is not a truetype font", e);
    } catch (IOException e) {
        throw new ServletException("I/O error when reading font resource '" + fontResourceParam + "'", e);
    } finally {
        try {
            is.close();
        } catch (IOException e) {
        }
    }
}

---

From source file:com.liusoft.dlog4j.action.ActionBase.java

/**
 * ?/*  www  .  j av a 2  s . c o  m*/
 * @return
 * @throws IOException
 */
protected String getTemplate(String tmp) throws IOException {
    ServletContext sc = getServlet().getServletContext();
    InputStream in = sc.getResourceAsStream(tmp);
    StringBuffer template = new StringBuffer(512);
    BufferedReader reader = null;
    try {
        reader = new BufferedReader(new InputStreamReader(in));
        do {
            String line = reader.readLine();
            if (line == null)
                break;
            template.append(line);
            template.append("\r\n");
        } while (true);
    } finally {
        in.close();
    }
    return template.toString();
}

---

From source file:org.wso2.carbon.discovery.cxf.listeners.TomcatCxfDiscoveryListener.java

private InputStream getConfigLocation(ServletContext context) {

    String configLocation = context.getInitParameter("config-location");
    if (configLocation == null) {
        try {//ww w.  j a  v  a  2  s. c  o m
            InputStream is = context.getResourceAsStream("/WEB-INF/cxf-servlet.xml");
            if (is != null && is.available() > 0) {
                is.close();
                configLocation = "/WEB-INF/cxf-servlet.xml";
            }
        } catch (Exception ex) {
            //ignore
        }
    }

    return context.getResourceAsStream(configLocation);
}

---

From source file:net.sf.click.jquery.examples.page.SourceViewer.java

private void loadFilename(String filename) {
    ServletContext context = getContext().getServletContext();

    // Orion server requires '/' prefix to find resources
    String resourceFilename = (filename.charAt(0) != '/') ? "/" + filename : filename;

    InputStream in = null;/*w  w  w.  j av a  2  s.  co m*/
    try {
        in = context.getResourceAsStream(resourceFilename);

        if (in == null && filename.endsWith(".htm")) {
            resourceFilename = resourceFilename.substring(0, resourceFilename.length() - 4) + ".jsp";

            in = context.getResourceAsStream(resourceFilename);
        }

        if (in != null) {

            loadResource(in, filename);

        } else {
            addModel("error", "File " + resourceFilename + " not found");
        }

    } catch (IOException e) {
        addModel("error", "Could not read " + resourceFilename);

    } finally {
        ClickUtils.close(in);
    }
}

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From source file:edu.cornell.mannlib.vitro.webapp.services.shortview.FakeApplicationOntologyService.java

/**
 * Load the short view config file into an OntModel.
 *///www .  jav  a2s. c  o  m
private OntModel createModelFromFile(ServletContext ctx) throws ShortViewConfigException {
    InputStream stream = ctx.getResourceAsStream(FILE_OF_SHORT_VIEW_INFO);
    if (stream == null) {
        throw new ShortViewConfigException("The short view config file "
                + "doesn't exist in the servlet context: '" + FILE_OF_SHORT_VIEW_INFO + "'");
    }

    OntModel m = ModelFactory.createOntologyModel(OntModelSpec.OWL_DL_MEM);
    try {
        m.read(stream, null, "N3");
    } catch (Exception e) {
        throw new ShortViewConfigException("Parsing error in the short view config file.", e);
    } finally {
        try {
            stream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    log.debug("Loaded " + m.size() + " statements");
    return m;
}

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From source file:org.apereo.portal.portlet.container.services.LocalPortletContextManager.java

/**
 * Creates the portlet.xml deployment descriptor representation.
 *
 * @param servletContext  the servlet context for which the DD is requested.
 * @return the Portlet Application Deployment Descriptor.
 * @throws PortletContainerException/*  w ww . ja v  a 2s .  co m*/
 */
private PortletApplicationDefinition createDefinition(ServletContext servletContext, String name,
        String contextPath) throws PortletContainerException {
    PortletApplicationDefinition portletApp = null;
    try {
        InputStream paIn = servletContext.getResourceAsStream(PORTLET_XML);
        InputStream webIn = servletContext.getResourceAsStream(WEB_XML);
        if (paIn == null) {
            throw new PortletContainerException(
                    "Cannot find '" + PORTLET_XML + "'. Are you sure it is in the deployed package?");
        }
        if (webIn == null) {
            throw new PortletContainerException(
                    "Cannot find '" + WEB_XML + "'. Are you sure it is in the deployed package?");
        }
        portletApp = this.portletAppDescriptorService.read(name, contextPath, paIn);
        this.portletAppDescriptorService.mergeWebDescriptor(portletApp, webIn);
    } catch (Exception ex) {
        throw new PortletContainerException(
                "Exception loading portlet descriptor for: " + servletContext.getServletContextName(), ex);
    }
    return portletApp;
}

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From source file:com.bah.bahdit.main.plugins.fulltextindex.FullTextIndex.java

/**
 * loads the necessary files from the properties file
 * called from FullTextIndex.configure/*www  .ja v  a  2 s  . c  o m*/
 * 
 * @param context - passed from the servlet
 */
@SuppressWarnings("unchecked")
private void loadResources(ServletContext context) {

    // get the sample table from resources
    try {
        InputStream sample = context.getResourceAsStream(properties.getProperty(FT_SAMPLE));
        InputStream samplebuffer = new BufferedInputStream(sample);
        ObjectInput objectsample = new ObjectInputStream(samplebuffer);
        sampleTable = (HashMap<String, Integer>) objectsample.readObject();
    } catch (ClassNotFoundException e) {
        log.error(e.getMessage());
    } catch (IOException e) {
        log.error(e.getMessage());
    }

    // get the pagerank table from resources
    try {
        InputStream pagerank = context.getResourceAsStream(properties.getProperty(PR_FILE));
        InputStream pagerankbuffer = new BufferedInputStream(pagerank);
        ObjectInput objectpagerank = new ObjectInputStream(pagerankbuffer);
        pagerankTable = (HashMap<String, Double>) objectpagerank.readObject();
    } catch (ClassNotFoundException e) {
        log.error(e.getMessage());
    } catch (IOException e) {
        log.error(e.getMessage());
    }

    // get the spell checker
    spellChecker = LevenshteinDistance.createSpellChecker(context, sampleTable);

    // create stop words list from general list
    try {
        stopWords = new HashSet<String>();
        InputStream gstop = context.getResourceAsStream(properties.getProperty(Search.GENERAL_STOP));
        DataInputStream gin = new DataInputStream(gstop);
        BufferedReader gbr = new BufferedReader(new InputStreamReader(gin));
        String strLine;
        while ((strLine = gbr.readLine()) != null)
            stopWords.add(strLine);
    } catch (IOException e) {
        log.error(e.getMessage());
    }

}

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