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.ajax4jsf.resource.ResourceBuilderImpl.java

/**
 * Build resource for link to static context in webapp.
 * /*from w  w w  .  j ava  2s.  c o m*/
 * @param path
 * @return
 * @throws FacesException
 */
protected InternetResource createStaticResource(String path) throws ResourceNotFoundException, FacesException {
    FacesContext context = FacesContext.getCurrentInstance();
    if (null != context) {
        if (context.getExternalContext().getContext() instanceof ServletContext) {
            ServletContext servletContext = (ServletContext) context.getExternalContext().getContext();
            InputStream in = servletContext.getResourceAsStream(path);
            if (null != in) {
                InternetResourceBase res = new StaticResource(path);
                setRenderer(res, path);
                res.setLastModified(new Date(getStartTime()));
                addResource(path, res);
                try {
                    in.close();
                } catch (IOException e) {
                }
                return res;
            }
        }
    }
    throw new ResourceNotFoundException(Messages.getMessage(Messages.STATIC_RESOURCE_NOT_FOUND_ERROR, path));
}

---

From source file:org.apache.struts2.dispatcher.PlainTextResult.java

protected void doExecute(String finalLocation, ActionInvocation invocation) throws Exception {

    // verify charset
    Charset charset = null;//w  ww  . j  av  a2 s . c o m
    if (charSet != null) {
        if (Charset.isSupported(charSet)) {
            charset = Charset.forName(charSet);
        } else {
            _log.warn("charset [" + charSet + "] is not recognized ");
            charset = null;
        }
    }

    HttpServletResponse response = (HttpServletResponse) invocation.getInvocationContext().get(HTTP_RESPONSE);
    ServletContext servletContext = (ServletContext) invocation.getInvocationContext().get(SERVLET_CONTEXT);

    if (charset != null) {
        response.setContentType("text/plain; charset=" + charSet);
    } else {
        response.setContentType("text/plain");
    }
    response.setHeader("Content-Disposition", "inline");

    PrintWriter writer = response.getWriter();
    InputStreamReader reader = null;
    try {
        if (charset != null) {
            reader = new InputStreamReader(servletContext.getResourceAsStream(finalLocation), charset);
        } else {
            reader = new InputStreamReader(servletContext.getResourceAsStream(finalLocation));
        }
        if (reader == null) {
            _log.warn("resource at location [" + finalLocation
                    + "] cannot be obtained (return null) from ServletContext !!! ");
        } else {
            char[] buffer = new char[BUFFER_SIZE];
            int charRead = 0;
            while ((charRead = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, charRead);
            }
        }
    } finally {
        if (reader != null)
            reader.close();
        if (writer != null) {
            writer.flush();
            writer.close();
        }
    }
}

---

From source file:org.apache.struts.tiles.xmlDefinition.I18nFactorySet.java

/**
 * Parse specified xml file and add definition to specified definitions set.
 * This method is used to load several description files in one instances list.
 * If filename exists and definition set is <code>null</code>, create a new set. Otherwise, return
 * passed definition set (can be <code>null</code>).
 * @param servletContext Current servlet context. Used to open file.
 * @param filename Name of file to parse.
 * @param xmlDefinitions Definitions set to which definitions will be added. If null, a definitions
 * set is created on request./*from  w  w w .ja v a 2 s .  c o  m*/
 * @return XmlDefinitionsSet The definitions set created or passed as parameter.
 * @throws DefinitionsFactoryException On errors parsing file.
 */
protected XmlDefinitionsSet parseXmlFile(ServletContext servletContext, String filename,
        XmlDefinitionsSet xmlDefinitions) throws DefinitionsFactoryException {

    try {
        InputStream input = servletContext.getResourceAsStream(filename);
        // Try to load using real path.
        // This allow to load config file under websphere 3.5.x
        // Patch proposed Houston, Stephen (LIT) on 5 Apr 2002
        if (null == input) {
            try {
                input = new java.io.FileInputStream(servletContext.getRealPath(filename));
            } catch (Exception e) {
            }
        }

        // If the config isn't in the servlet context, try the class loader
        // which allows the config files to be stored in a jar
        if (input == null) {
            input = getClass().getResourceAsStream(filename);
        }

        // If still nothing found, this mean no config file is associated
        if (input == null) {
            if (log.isDebugEnabled()) {
                log.debug("Can't open file '" + filename + "'");
            }
            return xmlDefinitions;
        }

        // Check if parser already exist.
        // Doesn't seem to work yet.
        //if( xmlParser == null )
        if (true) {
            xmlParser = new XmlParser();
            xmlParser.setValidating(isValidatingParser);
        }

        // Check if definition set already exist.
        if (xmlDefinitions == null) {
            xmlDefinitions = new XmlDefinitionsSet();
        }

        xmlParser.parse(input, xmlDefinitions);

    } catch (SAXException ex) {
        if (log.isDebugEnabled()) {
            log.debug("Error while parsing file '" + filename + "'.");
            ex.printStackTrace();
        }
        throw new DefinitionsFactoryException("Error while parsing file '" + filename + "'. " + ex.getMessage(),
                ex);

    } catch (IOException ex) {
        throw new DefinitionsFactoryException(
                "IO Error while parsing file '" + filename + "'. " + ex.getMessage(), ex);
    }

    return xmlDefinitions;
}

---

From source file:org.ramadda.repository.server.RepositoryServlet.java

/**
 * Create the repository//from   w w w.  jav  a  2  s .  c o  m
 *
 * @param request - an HttpServletRequest object that contains the request the client has made of the servlet
 *
 * @throws Exception - if an Exception occurs during the creation of the repository
 */
private void createRepository(HttpServletRequest request) throws Exception {
    Properties webAppProperties = new Properties();
    ServletContext context = getServletContext();
    if (context != null) {
        String propertyFile = "/WEB-INF/repository.properties";
        InputStream is = context.getResourceAsStream(propertyFile);
        if (is != null) {
            webAppProperties.load(is);
        }
    }
    createRepository(request.getServerPort(), webAppProperties, true);
}

---

From source file:org.apache.tiles.xmlDefinition.I18nFactorySet.java

/**
 * Parse specified xml file and add definition to specified definitions set.
 * This method is used to load several description files in one instances list.
 * If filename exists and definition set is <code>null</code>, create a new set. Otherwise, return
 * passed definition set (can be <code>null</code>).
 * @param servletContext Current servlet context. Used to open file.
 * @param filename Name of file to parse.
 * @param xmlDefinitions Definitions set to which definitions will be added. If null, a definitions
 * set is created on request.// w w  w .j a  va  2s .  c  o m
 * @return XmlDefinitionsSet The definitions set created or passed as parameter.
 * @throws DefinitionsFactoryException On errors parsing file.
 */
private XmlDefinitionsSet parseXmlFile(ServletContext servletContext, String filename,
        XmlDefinitionsSet xmlDefinitions) throws DefinitionsFactoryException {

    try {
        InputStream input = servletContext.getResourceAsStream(filename);
        // Try to load using real path.
        // This allow to load config file under websphere 3.5.x
        // Patch proposed Houston, Stephen (LIT) on 5 Apr 2002
        if (null == input) {
            try {
                input = new java.io.FileInputStream(servletContext.getRealPath(filename));
            } catch (Exception e) {
            }
        }

        // If still nothing found, this mean no config file is associated
        if (input == null) {
            if (log.isDebugEnabled()) {
                log.debug("Can't open file '" + filename + "'");
            }
            return xmlDefinitions;
        }

        // Check if parser already exist.
        // Doesn't seem to work yet.
        //if( xmlParser == null )
        if (true) {
            xmlParser = new XmlParser();
            xmlParser.setValidating(isValidatingParser);
        }

        // Check if definition set already exist.
        if (xmlDefinitions == null) {
            xmlDefinitions = new XmlDefinitionsSet();
        }

        xmlParser.parse(input, xmlDefinitions);

    } catch (SAXException ex) {
        if (log.isDebugEnabled()) {
            log.debug("Error while parsing file '" + filename + "'.");
            ex.printStackTrace();
        }
        throw new DefinitionsFactoryException("Error while parsing file '" + filename + "'. " + ex.getMessage(),
                ex);

    } catch (IOException ex) {
        throw new DefinitionsFactoryException(
                "IO Error while parsing file '" + filename + "'. " + ex.getMessage(), ex);
    }

    return xmlDefinitions;
}

---

From source file:org.apache.click.extras.control.MenuFactory.java

/**
 * Return a copy of the Applications root Menu as defined by the
 * configuration file./*w w  w. j  av  a  2 s  . c o  m*/
 * <p/>
 * If the fileName starts with a '/' character it is assumed to be an
 * absolute path and Click will attempt to load the file from the Servlet
 * context path and if not found from the classpath.
 * <p/>
 * If the fileName does not start with a '/' character it is assumed to be
 * a relative path and Click will load the file from the Servlet context
 * by <tt>prefixing</tt> the fileName with '/WEB-INF'. If not found the
 * file will be loaded from the classpath.
 * <p/>
 * The returned root menu is always selected.
 *
 * @param name the name of the root menu
 * @param fileName the configuration fileName defining the menu definitions
 * @param accessController the menu access controller
 * @param menuClass the menu class to instantiate
 * @return a copy of the application's root Menu
 */
protected Menu loadFromMenuXml(String name, String fileName, AccessController accessController,
        Class<? extends Menu> menuClass) {

    if (name == null) {
        throw new IllegalArgumentException("Null name parameter");
    }

    if (fileName == null) {
        throw new IllegalArgumentException("Null fileName parameter");
    }

    if (accessController == null) {
        throw new IllegalArgumentException("Null accessController parameter");
    }

    String webinfFileName = null;
    boolean absolute = fileName.startsWith("/");
    if (!absolute) {
        fileName = '/' + fileName;
        webinfFileName = "/WEB-INF" + fileName;
    }

    Context context = Context.getThreadLocalContext();

    Menu menu = null;
    if (menuClass == null) {
        menu = new Menu();
    } else {
        menu = createMenu(menuClass);
    }

    menu.setName(name);
    menu.setAccessController(accessController);

    ServletContext servletContext = context.getServletContext();
    InputStream inputStream = null;

    if (absolute) {
        inputStream = servletContext.getResourceAsStream(fileName);
    } else {
        inputStream = servletContext.getResourceAsStream(webinfFileName);
    }

    if (inputStream == null) {
        if (absolute) {
            inputStream = ClickUtils.getResourceAsStream(fileName, MenuFactory.class);
            if (inputStream == null) {
                String msg = "could not find configuration file:" + fileName + " on classpath";
                throw new RuntimeException(msg);
            }
        } else {
            inputStream = ClickUtils.getResourceAsStream(fileName, MenuFactory.class);
            if (inputStream == null) {
                String msg = "could not find configuration file:" + webinfFileName + " or " + fileName
                        + " on classpath";
                throw new RuntimeException(msg);
            }
        }
    }

    Document document = ClickUtils.buildDocument(inputStream);

    Element rootElm = document.getDocumentElement();

    NodeList list = rootElm.getChildNodes();

    for (int i = 0; i < list.getLength(); i++) {
        Node node = list.item(i);
        if (node instanceof Element) {
            Menu childMenu = buildMenu((Element) node, accessController, menuClass);
            menu.add(childMenu);
        }
    }

    return menu;
}

---

From source file:com.ecyrd.jspwiki.ui.TemplateManager.java

/**
 *  Check the existence of a template./*w  ww  .ja va  2 s.c  o m*/
 */
// FIXME: Does not work yet
public boolean templateExists(String templateName) {
    ServletContext context = m_engine.getServletContext();

    InputStream in = context.getResourceAsStream(getPath(templateName) + "ViewTemplate.jsp");

    if (in != null) {
        try {
            in.close();
        } catch (IOException e) {
        }

        return true;
    }

    return false;
}

---

From source file:de.kp.ames.web.function.security.SecurityServiceImpl.java

/**
 * A helper method to retrieve a set of default AND
 * user independent set of application descriptions
 * //w ww.j  a v a 2  s  . co m
 * @param ctx
 * @return
 * @throws Exception
 */
private JSONArray getDefaultApps(RequestContext ctx) throws Exception {

    ServletContext context = ctx.getContext();

    String filename = "/WEB-INF/classes/resources/defaultapps.xml";
    InputStream is = context.getResourceAsStream(filename);

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);

    JSONArray jDefaultApps = new JSONArray();

    try {

        Document xmlDoc = factory.newDocumentBuilder().parse(is);
        NodeList apps = xmlDoc.getElementsByTagName("app");

        for (int i = 0; i < apps.getLength(); i++) {

            Element eService = (Element) apps.item(i);
            JSONObject jApp = getAppParams(eService);

            if (jApp == null)
                continue;

            jDefaultApps.put(jApp);

        }

    } catch (Exception e) {
        e.printStackTrace();

    }

    return jDefaultApps;

}

---

From source file:com.liferay.portal.struts.PortalTilesDefinitionsFactory.java

/**
 * Parse specified xml file and add definition to specified definitions set.
 * This method is used to load several description files in one instances list.
 * If filename exists and definition set is <code>null</code>, create a new set. Otherwise, return
 * passed definition set (can be <code>null</code>).
 * @param servletContext Current servlet context. Used to open file.
 * @param filename Name of file to parse.
 * @param xmlDefinitions Definitions set to which definitions will be added. If null, a definitions
 * set is created on request./*from w w w  .j  a  v a  2  s  . c  o  m*/
 * @return XmlDefinitionsSet The definitions set created or passed as parameter.
 * @throws DefinitionsFactoryException On errors parsing file.
 */
private XmlDefinitionsSet parseXmlFile(ServletContext servletContext, String filename,
        XmlDefinitionsSet xmlDefinitions) throws DefinitionsFactoryException {

    try {
        InputStream input = servletContext.getResourceAsStream(filename);
        // Try to load using real path.
        // This allow to load config file under websphere 3.5.x
        // Patch proposed Houston, Stephen (LIT) on 5 Apr 2002
        if (null == input) {
            try {
                input = new java.io.FileInputStream(servletContext.getRealPath(filename));
            } catch (Exception e) {
            }
        }

        // If the config isn't in the servlet context, try the class loader
        // which allows the config files to be stored in a jar
        if (input == null) {
            input = getClass().getResourceAsStream(filename);
        }

        // If still nothing found, this mean no config file is associated
        if (input == null) {
            if (log.isDebugEnabled()) {
                log.debug("Can't open file '" + filename + "'");
            }
            return xmlDefinitions;
        }

        // Check if parser already exist.
        // Doesn't seem to work yet.
        //if( xmlParser == null )
        if (true) {
            xmlParser = new XmlParser();
            xmlParser.setValidating(isValidatingParser);
        }

        // Check if definition set already exist.
        if (xmlDefinitions == null) {
            xmlDefinitions = new XmlDefinitionsSet();
        }

        xmlParser.parse(input, xmlDefinitions);

    } catch (SAXException ex) {
        if (log.isDebugEnabled()) {
            log.debug("Error while parsing file '" + filename + "'.");
            ex.printStackTrace();
        }
        throw new DefinitionsFactoryException("Error while parsing file '" + filename + "'. " + ex.getMessage(),
                ex);

    } catch (IOException ex) {
        throw new DefinitionsFactoryException(
                "IO Error while parsing file '" + filename + "'. " + ex.getMessage(), ex);
    }

    return xmlDefinitions;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• »