File	Doc	Category	Size	Date	Package
AbstractMessageParser.java	API Doc	Android 1.5 API	7201	Wed May 06 22:41:10 BST 2009	org.apache.http.impl.io

AbstractMessageParser

• java.lang.Object

Fields Summary
private final SessionInputBuffer	sessionBuffer
private final int	maxHeaderCount
private final int	maxLineLen
protected final LineParser	lineParser

Constructors Summary

public AbstractMessageParser(SessionInputBuffer buffer, LineParser parser, HttpParams params) super(); if (buffer == null) { throw new IllegalArgumentException("Session input buffer may not be null"); } if (params == null) { throw new IllegalArgumentException("HTTP parameters may not be null"); } this.sessionBuffer = buffer; this.maxHeaderCount = params.getIntParameter( CoreConnectionPNames.MAX_HEADER_COUNT, -1); this.maxLineLen = params.getIntParameter( CoreConnectionPNames.MAX_LINE_LENGTH, -1); this.lineParser = (parser != null) ? parser : BasicLineParser.DEFAULT;

Methods Summary
public org.apache.http.HttpMessage	parse() HttpMessage message = null; try { message = parseHead(this.sessionBuffer); } catch (ParseException px) { throw new ProtocolException(px.getMessage(), px); } Header[] headers = AbstractMessageParser.parseHeaders( this.sessionBuffer, this.maxHeaderCount, this.maxLineLen, this.lineParser); message.setHeaders(headers); return message;
protected abstract org.apache.http.HttpMessage	parseHead(org.apache.http.io.SessionInputBuffer sessionBuffer)
public static org.apache.http.Header[]	parseHeaders(org.apache.http.io.SessionInputBuffer inbuffer, int maxHeaderCount, int maxLineLen, org.apache.http.message.LineParser parser) Parses HTTP headers from the data receiver stream according to the generic format as given in Section 3.1 of RFC 822, RFC-2616 Section 4 and 19.3. param inbuffer Session input buffer param maxHeaderCount maximum number of headers allowed. If the number of headers received from the data stream exceeds maxCount value, an IOException will be thrown. Setting this parameter to a negative value or zero will disable the check. param maxLineLen maximum number of characters for a header line, including the continuation lines return array of HTTP headers throws HttpException throws IOException if (inbuffer == null) { throw new IllegalArgumentException("Session input buffer may not be null"); } if (parser == null) parser = BasicLineParser.DEFAULT; ArrayList headerLines = new ArrayList(); CharArrayBuffer current = null; CharArrayBuffer previous = null; for (;;) { if (current == null) { current = new CharArrayBuffer(64); } else { current.clear(); } int l = inbuffer.readLine(current); if (l == -1 || current.length() < 1) { break; } // Parse the header name and value // Check for folded headers first // Detect LWS-char see HTTP/1.0 or HTTP/1.1 Section 2.2 // discussion on folded headers if ((current.charAt(0) == ' " || current.charAt(0) == '\t") && previous != null) { // we have continuation folded header // so append value int i = 0; while (i < current.length()) { char ch = current.charAt(i); if (ch != ' " && ch != '\t") { break; } i++; } if (maxLineLen > 0 && previous.length() + 1 + current.length() - i > maxLineLen) { throw new IOException("Maximum line length limit exceeded"); } previous.append(' "); previous.append(current, i, current.length() - i); } else { headerLines.add(current); previous = current; current = null; } if (maxHeaderCount > 0 && headerLines.size() >= maxHeaderCount) { throw new IOException("Maximum header count exceeded"); } } Header[] headers = new Header[headerLines.size()]; for (int i = 0; i < headerLines.size(); i++) { CharArrayBuffer buffer = (CharArrayBuffer) headerLines.get(i); try { headers[i] = parser.parseHeader(buffer); } catch (ParseException ex) { throw new ProtocolException(ex.getMessage()); } } return headers;