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28 package org.apache.http.impl.io;
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30 import java.io.IOException;
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32 import org.apache.http.ConnectionClosedException;
33 import org.apache.http.HttpException;
34 import org.apache.http.HttpRequest;
35 import org.apache.http.HttpRequestFactory;
36 import org.apache.http.ParseException;
37 import org.apache.http.RequestLine;
38 import org.apache.http.config.MessageConstraints;
39 import org.apache.http.impl.DefaultHttpRequestFactory;
40 import org.apache.http.io.SessionInputBuffer;
41 import org.apache.http.message.LineParser;
42 import org.apache.http.message.ParserCursor;
43 import org.apache.http.params.HttpParams;
44 import org.apache.http.util.Args;
45 import org.apache.http.util.CharArrayBuffer;
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53 @SuppressWarnings("deprecation")
54 public class DefaultHttpRequestParser extends AbstractMessageParser<HttpRequest> {
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56 private final HttpRequestFactory requestFactory;
57 private final CharArrayBuffer lineBuf;
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72 @Deprecated
73 public DefaultHttpRequestParser(
74 final SessionInputBuffer buffer,
75 final LineParser lineParser,
76 final HttpRequestFactory requestFactory,
77 final HttpParams params) {
78 super(buffer, lineParser, params);
79 this.requestFactory = Args.notNull(requestFactory, "Request factory");
80 this.lineBuf = new CharArrayBuffer(128);
81 }
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96 public DefaultHttpRequestParser(
97 final SessionInputBuffer buffer,
98 final LineParser lineParser,
99 final HttpRequestFactory requestFactory,
100 final MessageConstraints constraints) {
101 super(buffer, lineParser, constraints);
102 this.requestFactory = requestFactory != null ? requestFactory :
103 DefaultHttpRequestFactory.INSTANCE;
104 this.lineBuf = new CharArrayBuffer(128);
105 }
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110 public DefaultHttpRequestParser(
111 final SessionInputBuffer buffer,
112 final MessageConstraints constraints) {
113 this(buffer, null, null, constraints);
114 }
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119 public DefaultHttpRequestParser(final SessionInputBuffer buffer) {
120 this(buffer, null, null, MessageConstraints.DEFAULT);
121 }
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123 @Override
124 protected HttpRequest parseHead(
125 final SessionInputBuffer sessionBuffer)
126 throws IOException, HttpException, ParseException {
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128 this.lineBuf.clear();
129 final int readLen = sessionBuffer.readLine(this.lineBuf);
130 if (readLen == -1) {
131 throw new ConnectionClosedException("Client closed connection");
132 }
133 final ParserCursorursor.html#ParserCursor">ParserCursor cursor = new ParserCursor(0, this.lineBuf.length());
134 final RequestLine requestline = this.lineParser.parseRequestLine(this.lineBuf, cursor);
135 return this.requestFactory.newHttpRequest(requestline);
136 }
137
138 }