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[#2234] Use QueryStringDecoder.decodeComponent to decode url-encoded data instead of Java's URLDecoder. Backport of 98bc7b7859

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Motivation:
Previously, we used URLDecoder.decode(...) to decode url-encoded data. This generates a lot of garbage and takes a considerable amount of time.

Modifications:
Replace URLDecoder.decode(...) with QueryStringDecoder.decodeComponent(...)

Result:
Less garbage to GC and faster decode processing.
This commit is contained in:
Norman Maurer 2014-03-22 14:14:01 +01:00
parent 7c4aea4bc3
commit 6f0e740e19
1 changed files with 2 additions and 8 deletions
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10
codec-http/src/main/java/io/netty/handler/codec/http/multipart/HttpPostRequestDecoder.java
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@ -23,14 +23,13 @@ import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpMethod;
import io.netty.handler.codec.http.HttpRequest;
import io.netty.handler.codec.http.LastHttpContent;
import io.netty.handler.codec.http.QueryStringDecoder;
import io.netty.handler.codec.http.multipart.HttpPostBodyUtil.SeekAheadNoBackArrayException;
import io.netty.handler.codec.http.multipart.HttpPostBodyUtil.SeekAheadOptimize;
import io.netty.handler.codec.http.multipart.HttpPostBodyUtil.TransferEncodingMechanism;
import io.netty.util.internal.StringUtil;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
@ -753,13 +752,8 @@ public class HttpPostRequestDecoder {
* @return the decoded component
*/
private static String decodeAttribute(String s, Charset charset) throws ErrorDataDecoderException {
if (s == null) {
return "";
}
try {
return URLDecoder.decode(s, charset.name());
} catch (UnsupportedEncodingException e) {
throw new ErrorDataDecoderException(charset.toString(), e);
return QueryStringDecoder.decodeComponent(s, charset);
} catch (IllegalArgumentException e) {
throw new ErrorDataDecoderException("Bad string: '" + s + '\'', e);
}