Example usage for javax.servlet ServletRequest getParameter

Introduction

In this page you can find the example usage for javax.servlet ServletRequest getParameter.

Prototype

public String getParameter(String name);

Source Link

Document

Returns the value of a request parameter as a String, or null if the parameter does not exist.

Usage

From source file:com.doculibre.constellio.filters.SetCharacterEncodingFilter.java

private static String lookupCharSet(ServletRequest request) {
    String charSet;/* www  .  j a  va  2 s  .  c  om*/
    String cs = request.getParameter("cs");
    if (StringUtils.isNotBlank(cs)) {
        if ("Utf8".equalsIgnoreCase(cs) || CharSetUtils.UTF_8.equalsIgnoreCase(cs)) {
            charSet = CharSetUtils.UTF_8;
        } else if ("Iso".equalsIgnoreCase(cs) || CharSetUtils.ISO_8859_1.equalsIgnoreCase(cs)) {
            charSet = CharSetUtils.ISO_8859_1;
        } else {
            try {
                Charset.forName(cs);
                charSet = cs;
            } catch (UnsupportedCharsetException e) {
                charSet = null;
            }
        }
    } else {
        charSet = null;
    }
    return charSet;
}

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From source file:org.rhq.enterprise.gui.util.WebUtility.java

public static int getOptionalIntRequestParameter(ServletRequest request, String name, int defaultValue) {
    String value = request.getParameter(name);
    return ((value != null) && (value.length() > 0)) ? Integer.parseInt(value) : defaultValue;
}

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From source file:com.redhat.rhn.frontend.taglibs.list.ListTagHelper.java

/**
 * returns true if the list that is being filtered upon is allowed to
 * to treat the parent as an element (always true for normal list)
 * @param request the request to look in
 * @param uniqueName the unique (hashed) name for the list
 * @return true if the parent can be treated as an element.
 *///from   w w w  .j a v  a2s .c  om
public static boolean isParentAnElement(ServletRequest request, String uniqueName) {
    return ListTagUtil.toBoolean(request.getParameter(ListTagUtil.makeParentIsAnElementLabel(uniqueName)));
}

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From source file:com.redhat.rhn.frontend.taglibs.list.ListTagHelper.java

/**
 * returns the value that the list is being filtered upon.  (null if not being filtered)
 * @param request the request to look in
 * @param uniqueName the unique (hashed) name for the list
 * @return the filter value/*from  ww  w  .j  ava 2s  . c  o  m*/
 */
public static String getFilterValue(ServletRequest request, String uniqueName) {

    String newValue = request.getParameter(ListTagUtil.makeFilterValueByLabel(uniqueName));
    String oldValue = request.getParameter(ListTagUtil.makeOldFilterValueByLabel(uniqueName));

    String clicked = request.getParameter(ListTagUtil.makeFilterNameByLabel(uniqueName));

    if (clicked == null) {
        if (oldValue != null && !oldValue.equals("null")) {
            return StringEscapeUtils.escapeHtml(oldValue);
        }
        return "";
    }
    return StringEscapeUtils.escapeHtml(newValue);
}

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From source file:com.redhat.rhn.frontend.taglibs.list.decorators.PageSizeDecorator.java

/**
 * returns the page size/*from   w  w w . ja v a 2s . c  o  m*/
 * @param request the http  servlet request
 * @param listName the name of the list
 * @return selected page size or -1 if none was selected.
 */
public static int getSelectedPageSize(ServletRequest request, String listName) {
    if (pageWidgetSelected(request, listName)) {
        return Integer.valueOf(request.getParameter(makePageSizeLabel(listName)));
    }
    return -1;
}

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From source file:dk.netarkivet.harvester.webinterface.EventHarvestUtil.java

/**
 * Adds a bunch of configurations to a given PartialHarvest. For full definitions of the parameters, see
 * Definitions-add-event-seeds.jsp. For each seed in the list, the following steps are taken: 1) The domain is
 * parsed out of the seed. If no such domain is known, it is created with the usual defaults. 2) For each domain, a
 * configuration with the name <harvestDefinition>_<orderTemplate>_<maxBytes>Bytes is created
 * unless it already exists. The configuration uses orderTemplate, and the specified maxBytes. If maxBytes is
 * unspecified, its default value is used. The configuration is added to the harvest specified by the
 * harvestDefinition argument. 3) For each domain, a seedlist with the name
 * <harvestDefinition>_<orderTemplate>_<maxBytes>Bytes is created if it does not already exist and
 * the given url is added to it. This seedlist is the only seedlist associated with the configuration of the same
 * name.//  w  ww  .  j  a v  a 2 s  .  c o  m
 *
 * @param context the current JSP context
 * @param i18n the translation information to use in this context
 * @param eventHarvestName The name of the partial harvest to which these seeds are to be added
 * @throws ForwardedToErrorPage If maxBytes is not a number, or if any of the seeds is badly formatted such that no
 * domain name can be parsed from it, or if orderTemplate is not given or unknown.
 */
public static void addConfigurations(PageContext context, I18n i18n, String eventHarvestName) {
    ArgumentNotValid.checkNotNull(context, "PageContext context");
    ArgumentNotValid.checkNotNull(i18n, "I18n i18n");
    ArgumentNotValid.checkNotNull(eventHarvestName, "String eventHarvestName");

    HTMLUtils.forwardOnMissingParameter(context, Constants.SEEDS_PARAM);
    ServletRequest request = context.getRequest();

    // If no seeds are specified, just return
    String seeds = request.getParameter(Constants.SEEDS_PARAM);
    if (seeds == null || seeds.trim().length() == 0) {
        return;
    }
    // split the seeds up into individual seeds
    // Note: Matches any sort of newline (unix/mac/dos), but won't get empty
    // lines, which is fine for this purpose

    Set<String> seedSet = new HashSet<String>();
    for (String seed : seeds.split("[\n\r]+")) {
        seedSet.add(seed);
    }

    HTMLUtils.forwardOnEmptyParameter(context, Constants.ORDER_TEMPLATE_PARAM);
    String orderTemplate = request.getParameter(Constants.ORDER_TEMPLATE_PARAM);
    // Check that order template exists
    if (!TemplateDAO.getInstance().exists(orderTemplate)) {
        HTMLUtils.forwardWithErrorMessage(context, i18n, "errormsg;harvest.template.0.does.not.exist",
                orderTemplate);
        throw new ForwardedToErrorPage("The orderTemplate with name '" + orderTemplate + "' does not exist!");
    }

    // Check that numerical parameters are meaningful and replace null or
    // empty with default values
    long maxBytes = HTMLUtils.parseOptionalLong(context, Constants.MAX_BYTES_PARAM,
            dk.netarkivet.harvester.datamodel.Constants.DEFAULT_MAX_BYTES);
    long maxObjectsL = HTMLUtils.parseOptionalLong(context, Constants.MAX_OBJECTS_PARAM,
            dk.netarkivet.harvester.datamodel.Constants.DEFAULT_MAX_OBJECTS);
    int maxObjects = (int) maxObjectsL;
    // All parameters are valid, so call method
    try {
        PartialHarvest eventHarvest = (PartialHarvest) HarvestDefinitionDAO.getInstance()
                .getHarvestDefinition(eventHarvestName);
        eventHarvest.addSeeds(seedSet, orderTemplate, maxBytes, maxObjects);
    } catch (Exception e) {
        HTMLUtils.forwardWithErrorMessage(context, i18n, "errormsg;error.adding.seeds.to.0", eventHarvestName,
                e);
        throw new ForwardedToErrorPage("Error while adding seeds", e);
    }
}

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From source file:com.googlecode.jtiger.modules.ecside.filter.ECSideFilter.java

public static String getExportFileName(ServletRequest servletRequest) {
    String fileName = servletRequest.getParameter(ECSideConstants.EASY_DATA_EXPORT_FILENAME);
    if (StringUtils.isBlank(fileName)) {
        fileName = "excel.xls";
    }//from  ww  w  .j ava 2s  . co m
    return StringUtils.isNotBlank(fileName) ? fileName : null;
}

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From source file:io.wcm.sling.commons.request.RequestParam.java

/**
 * @param request Servlet request/*from w  w  w . j av a 2 s  .  c  o m*/
 * @return Checks if form encoding parameter is set
 */
private static boolean hasFormEncodingParam(ServletRequest request) {
    return StringUtils.isNotEmpty(request.getParameter(PARAMETER_FORMENCODING));
}

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From source file:org.opencms.file.history.CmsHistoryResourceHandler.java

/**
 * Appends the <code>version</code> parameter to the URI if needed.<p>
 * //from   w ww  . j a  v  a2s.  c  o  m
 * @param uri the resource URI
 * @param req the current request
 * 
 * @return the same URI, with additional parameters in case of a historical request
 */
public static String getHistoryResourceURI(String uri, ServletRequest req) {

    String histUri = uri;
    if (CmsHistoryResourceHandler.isHistoryRequest(req)) {
        String version = req.getParameter(CmsHistoryResourceHandler.PARAM_VERSION);
        histUri = CmsRequestUtil.appendParameter(uri, CmsHistoryResourceHandler.PARAM_VERSION, version);
    }
    return histUri;
}

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From source file:org.rhq.enterprise.gui.util.WebUtility.java

public static String getRequiredRequestParameter(ServletRequest request, String name) {
    logWarningIfParameterHasMultipleValues(request, name);
    String value = request.getParameter(name);
    if (value == null) {
        throw new ParameterNotFoundException("Required request parameter '" + name + "' does not exist.");
    }// w  w  w .j  av  a 2 s . c om

    return value;
}

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