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RoResponse.java
Package: HTTP客户端.zip [view]
Upload User: demmber
Upload Date: 2007-12-22
Package Size: 717k
Code Size: 7k
Category:
Java Develop
Development Platform:
Java
- /*
- * @(#)RoResponse.java 0.3-3 06/05/2001
- *
- * This file is part of the HTTPClient package
- * Copyright (C) 1996-2001 Ronald Tschal鋜
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307, USA
- *
- * For questions, suggestions, bug-reports, enhancement-requests etc.
- * I may be contacted at:
- *
- * ronald@innovation.ch
- *
- * The HTTPClient's home page is located at:
- *
- * http://www.innovation.ch/java/HTTPClient/
- *
- */
- package HTTPClient;
- import java.io.InputStream;
- import java.io.IOException;
- import java.util.Date;
- /**
- * This interface represents read-only interface of an intermediate http
- * response. It is the compile-time type passed to various handlers which
- * might the response info but musn't modify the response.
- *
- * @version 0.3-3 06/05/2001
- * @author Ronald Tschal鋜
- */
- public interface RoResponse
- {
- /**
- * give the status code for this request. These are grouped as follows:
- * <UL>
- * <LI> 1xx - Informational (new in HTTP/1.1)
- * <LI> 2xx - Success
- * <LI> 3xx - Redirection
- * <LI> 4xx - Client Error
- * <LI> 5xx - Server Error
- * </UL>
- *
- * @return the status code
- * @exception IOException If any exception occurs on the socket.
- */
- public int getStatusCode() throws IOException;
- /**
- * @return the reason line associated with the status code.
- * @exception IOException If any exception occurs on the socket.
- */
- public String getReasonLine() throws IOException;
- /**
- * @return the HTTP version returned by the server.
- * @exception IOException If any exception occurs on the socket.
- */
- public String getVersion() throws IOException;
- /**
- * retrieves the field for a given header.
- *
- * @param hdr the header name.
- * @return the value for the header, or null if non-existent.
- * @exception IOException If any exception occurs on the socket.
- */
- public String getHeader(String hdr) throws IOException;
- /**
- * retrieves the field for a given header. The value is parsed as an
- * int.
- *
- * @param hdr the header name.
- * @return the value for the header if the header exists
- * @exception NumberFormatException if the header's value is not a number
- * or if the header does not exist.
- * @exception IOException if any exception occurs on the socket.
- */
- public int getHeaderAsInt(String hdr)
- throws IOException, NumberFormatException;
- /**
- * retrieves the field for a given header. The value is parsed as a
- * date; if this fails it is parsed as a long representing the number
- * of seconds since 12:00 AM, Jan 1st, 1970. If this also fails an
- * IllegalArgumentException is thrown.
- *
- * @param hdr the header name.
- * @return the value for the header, or null if non-existent.
- * @exception IOException If any exception occurs on the socket.
- * @exception IllegalArgumentException If the header cannot be parsed
- * as a date or time.
- */
- public Date getHeaderAsDate(String hdr)
- throws IOException, IllegalArgumentException;
- /**
- * Retrieves the field for a given trailer. Note that this should not
- * be invoked until all the response data has been read. If invoked
- * before, it will force the data to be read via <code>getData()</code>.
- *
- * @param trailer the trailer name.
- * @return the value for the trailer, or null if non-existent.
- * @exception IOException If any exception occurs on the socket.
- */
- public String getTrailer(String trailer) throws IOException;
- /**
- * Retrieves the field for a given tailer. The value is parsed as an
- * int.
- *
- * @param trailer the tailer name.
- * @return the value for the trailer if the trailer exists
- * @exception NumberFormatException if the trailer's value is not a number
- * or if the trailer does not exist.
- * @exception IOException if any exception occurs on the socket.
- */
- public int getTrailerAsInt(String trailer)
- throws IOException, NumberFormatException;
- /**
- * Retrieves the field for a given trailer. The value is parsed as a
- * date; if this fails it is parsed as a long representing the number
- * of seconds since 12:00 AM, Jan 1st, 1970. If this also fails an
- * IllegalArgumentException is thrown.
- * <br>Note: When sending dates use Util.httpDate().
- *
- * @param trailer the trailer name.
- * @return the value for the trailer, or null if non-existent.
- * @exception IllegalArgumentException if the trailer's value is neither a
- * legal date nor a number.
- * @exception IOException if any exception occurs on the socket.
- * @exception IllegalArgumentException If the header cannot be parsed
- * as a date or time.
- */
- public Date getTrailerAsDate(String trailer)
- throws IOException, IllegalArgumentException;
- /**
- * Reads all the response data into a byte array. Note that this method
- * won't return until <em>all</em> the data has been received (so for
- * instance don't invoke this method if the server is doing a server
- * push). If getInputStream() had been previously called then this method
- * only returns any unread data remaining on the stream and then closes
- * it.
- *
- * @see #getInputStream()
- * @return an array containing the data (body) returned. If no data
- * was returned then it's set to a zero-length array.
- * @exception IOException If any io exception occured while reading
- * the data
- */
- public byte[] getData() throws IOException;
- /**
- * Gets an input stream from which the returned data can be read. Note
- * that if getData() had been previously called it will actually return
- * a ByteArrayInputStream created from that data.
- *
- * @see #getData()
- * @return the InputStream.
- * @exception IOException If any exception occurs on the socket.
- */
- public InputStream getInputStream() throws IOException;
- }