Example usage for javax.servlet ServletContext getMinorVersion

Introduction

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

Prototype

public int getMinorVersion();

Source Link

Document

Returns the minor version of the Servlet API that this servlet container supports.

Usage

From source file:org.rhq.helpers.rtfilter.util.ServletUtility.java

/**
 * Get the context root for the specified servlet context.
 *
 * @param  servletContext/*from  www.  j  a  v a  2 s .c o m*/
 *
 * @return
 */
public static String getContextRoot(ServletContext servletContext) {
    String ctxName;

    /*
     * Get the servlet context. If we have servlet spec >=2.5, then there is a method on the servlet context for it.
     * Else we need to do some heuristics (which may be wrong at the end).
     */
    int major = servletContext.getMajorVersion();
    int minor = servletContext.getMinorVersion();
    if (((major == 2) && (minor >= 5)) || (major >= 3)) {
        ctxName = getContextRootFromSpec25(servletContext);
    } else {
        // First we check if the context-root was explicitly given in jboss-web.xml
        ctxName = getContextRootFromJbossWebXml(servletContext);

        // Still nothing? try application.xml
        if (ctxName == null) {
            ctxName = getContextRootFromApplicationXml(servletContext);
        }

        // if all else fails, take the name of the .war
        if (ctxName == null) {
            ctxName = getContextRootFromWarFileName(servletContext);
        }

        if ((ctxName == null) || "".equals(ctxName)) {
            ctxName = "__unknown";
        }
    }
    // Actually the context might always start with / even on Win* so on Unix this is / or /,
    // but this does not harm
    if (ctxName.startsWith(SEPARATOR) || ctxName.startsWith("/")) {
        ctxName = ctxName.substring(1);
    }

    return ctxName;
}

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