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28 package org.apache.hc.core5.http2.protocol;
29
30 import java.io.IOException;
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32 import org.apache.hc.core5.annotation.Contract;
33 import org.apache.hc.core5.annotation.ThreadingBehavior;
34 import org.apache.hc.core5.http.EntityDetails;
35 import org.apache.hc.core5.http.HttpException;
36 import org.apache.hc.core5.http.HttpRequest;
37 import org.apache.hc.core5.http.Method;
38 import org.apache.hc.core5.http.ProtocolException;
39 import org.apache.hc.core5.http.ProtocolVersion;
40 import org.apache.hc.core5.http.message.MessageSupport;
41 import org.apache.hc.core5.http.protocol.HttpContext;
42 import org.apache.hc.core5.http.protocol.RequestContent;
43 import org.apache.hc.core5.util.Args;
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50 @Contract(threading = ThreadingBehavior.IMMUTABLE)
51 public class H2RequestContent extends RequestContent {
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58 public static final H2RequestContent INSTANCE = new H2RequestContent();
59
60 public H2RequestContent() {
61 super();
62 }
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64 public H2RequestContent(final boolean overwrite) {
65 super(overwrite);
66 }
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68 @Override
69 public void process(
70 final HttpRequest request,
71 final EntityDetails entity,
72 final HttpContext context) throws HttpException, IOException {
73 Args.notNull(context, "HTTP context");
74 final ProtocolVersion ver = context.getProtocolVersion();
75 if (ver.getMajor() < 2) {
76 super.process(request, entity, context);
77 } else if (entity != null) {
78 final String method = request.getMethod();
79 if (Method.TRACE.isSame(method)) {
80 throw new ProtocolException("TRACE request may not enclose an entity");
81 }
82 MessageSupport.addContentTypeHeader(request, entity);
83 MessageSupport.addContentEncodingHeader(request, entity);
84 MessageSupport.addTrailerHeader(request, entity);
85 }
86 }
87 }