HADOOP-11231. Remove dead code in ServletUtil. Contributed by Li Lu.
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@ -359,6 +359,8 @@ Release 2.7.0 - UNRELEASED
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HADOOP-11172. Improve error message in Shell#runCommand on OutOfMemoryError.
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(Yongjun Zhang via wang)
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HADOOP-11231. Remove dead code in ServletUtil. (Li Lu via wheat9)
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OPTIMIZATIONS
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BUG FIXES
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@ -23,8 +23,6 @@ import java.util.Calendar;
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import javax.servlet.*;
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import javax.servlet.http.HttpServletRequest;
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import org.apache.commons.httpclient.URIException;
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import org.apache.commons.httpclient.util.URIUtil;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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@ -88,85 +86,6 @@ public class ServletUtil {
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return HTML_TAIL;
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}
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/**
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* Generate the percentage graph and returns HTML representation string
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* of the same.
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*
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* @param perc The percentage value for which graph is to be generated
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* @param width The width of the display table
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* @return HTML String representation of the percentage graph
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* @throws IOException
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*/
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public static String percentageGraph(int perc, int width) throws IOException {
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assert perc >= 0; assert perc <= 100;
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StringBuilder builder = new StringBuilder();
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builder.append("<table border=\"1px\" width=\""); builder.append(width);
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builder.append("px\"><tr>");
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if(perc > 0) {
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builder.append("<td cellspacing=\"0\" class=\"perc_filled\" width=\"");
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builder.append(perc); builder.append("%\"></td>");
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}if(perc < 100) {
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builder.append("<td cellspacing=\"0\" class=\"perc_nonfilled\" width=\"");
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builder.append(100 - perc); builder.append("%\"></td>");
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}
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builder.append("</tr></table>");
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return builder.toString();
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}
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/**
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* Generate the percentage graph and returns HTML representation string
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* of the same.
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* @param perc The percentage value for which graph is to be generated
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* @param width The width of the display table
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* @return HTML String representation of the percentage graph
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* @throws IOException
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*/
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public static String percentageGraph(float perc, int width) throws IOException {
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return percentageGraph((int)perc, width);
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}
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/**
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* Escape and encode a string regarded as within the query component of an URI.
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* @param value the value to encode
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* @return encoded query, null if the default charset is not supported
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*/
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public static String encodeQueryValue(final String value) {
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try {
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return URIUtil.encodeWithinQuery(value, "UTF-8");
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} catch (URIException e) {
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throw new AssertionError("JVM does not support UTF-8"); // should never happen!
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}
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}
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/**
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* Escape and encode a string regarded as the path component of an URI.
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* @param path the path component to encode
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* @return encoded path, null if UTF-8 is not supported
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*/
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public static String encodePath(final String path) {
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try {
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return URIUtil.encodePath(path, "UTF-8");
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} catch (URIException e) {
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throw new AssertionError("JVM does not support UTF-8"); // should never happen!
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}
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}
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/**
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* Parse and decode the path component from the given request.
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* @param request Http request to parse
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* @param servletName the name of servlet that precedes the path
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* @return decoded path component, null if UTF-8 is not supported
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*/
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public static String getDecodedPath(final HttpServletRequest request, String servletName) {
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try {
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return URIUtil.decode(getRawPath(request, servletName), "UTF-8");
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} catch (URIException e) {
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throw new AssertionError("JVM does not support UTF-8"); // should never happen!
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}
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}
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/**
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* Parse the path component from the given request and return w/o decoding.
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* @param request Http request to parse
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