Examples of org.apache.commons.httpclient.methods.HeadMethod

Package org.apache.commons.httpclient.methods

Examples of org.apache.commons.httpclient.methods.HeadMethod

org.apache.commons.httpclient.methods.HeadMethod
etf.org/rfc/rfc2616.txt">RFC2616:
The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response. The metainformation contained in the HTTP headers in response to a HEAD request SHOULD be identical to the information sent in response to a GET request. This method can be used for obtaining metainformation about the entity implied by the request without transferring the entity-body itself. This method is often used for testing hypertext links for validity, accessibility, and recent modification.

@author Remy Maucherat @author Mike Bowler @author Jeff Dever @author oleg Kalnichevski @version $Revision: 1.29 $ @since 1.0

        config.setAll( methodConfig );


        TestWagon wagon = new TestWagon();
        wagon.setHttpConfiguration( config );


        HeadMethod method = new HeadMethod();
        wagon.setParameters( method );


        HttpMethodParams params = method.getParams();
        assertNotNull( params );
        assertEquals( maxRedirects, params.getIntParameter( HttpClientParams.MAX_REDIRECTS, -1 ) );
    }

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        config.setAll( new HttpMethodConfiguration() );


        TestWagon wagon = new TestWagon();
        wagon.setHttpConfiguration( config );


        HeadMethod method = new HeadMethod();
        wagon.setHeaders( method );


        // these are the default headers.
        // method.addRequestHeader( "Cache-control", "no-cache" );
        // method.addRequestHeader( "Cache-store", "no-store" );
        // method.addRequestHeader( "Pragma", "no-cache" );
        // method.addRequestHeader( "Expires", "0" );
        // method.addRequestHeader( "Accept-Encoding", "gzip" );


        Header header = method.getRequestHeader( "Cache-control" );
        assertNotNull( header );
        assertEquals( "no-cache", header.getValue() );


        header = method.getRequestHeader( "Cache-store" );
        assertNotNull( header );
        assertEquals( "no-store", header.getValue() );


        header = method.getRequestHeader( "Pragma" );
        assertNotNull( header );
        assertEquals( "no-cache", header.getValue() );


        header = method.getRequestHeader( "Expires" );
        assertNotNull( header );
        assertEquals( "0", header.getValue() );


        header = method.getRequestHeader( "Accept-Encoding" );
        assertNotNull( header );
        assertEquals( "gzip", header.getValue() );
    }

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        config.setAll( new HttpMethodConfiguration().setUseDefaultHeaders( false ) );


        TestWagon wagon = new TestWagon();
        wagon.setHttpConfiguration( config );


        HeadMethod method = new HeadMethod();
        wagon.setHeaders( method );


        // these are the default headers.
        // method.addRequestHeader( "Cache-control", "no-cache" );
        // method.addRequestHeader( "Cache-store", "no-store" );
        // method.addRequestHeader( "Pragma", "no-cache" );
        // method.addRequestHeader( "Expires", "0" );
        // method.addRequestHeader( "Accept-Encoding", "gzip" );


        Header header = method.getRequestHeader( "Cache-control" );
        assertNull( header );


        header = method.getRequestHeader( "Cache-store" );
        assertNull( header );


        header = method.getRequestHeader( "Pragma" );
        assertNull( header );


        header = method.getRequestHeader( "Expires" );
        assertNull( header );


        header = method.getRequestHeader( "Accept-Encoding" );
        assertNull( header );
    }

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     */
    @Override
    protected FileType doGetType() throws Exception
    {
        // Use the HEAD method to probe the file.
        method = new HeadMethod();
        setupMethod(method);
        final HttpClient client = fileSystem.getClient();
        final int status = client.executeMethod(method);
        method.releaseConnection();
        if (status == HttpURLConnection.HTTP_OK)

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                    new UsernamePasswordCredentials(username, password);
                AuthScope scope = new AuthScope(hostname, AuthScope.ANY_PORT);
                client.getState().setCredentials(scope, creds);
            }


            client.executeMethod(new HeadMethod());
        }
        catch (final Exception exc)
        {
            throw new FileSystemException("vfs.provider.http/connect.error", new Object[]{hostname}, exc);
        }

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        LOG.trace("HTTP GET consumer thread starting: " + this);
        HttpClient httpClient = getReceiveHttpClient();
        URI remoteUrl = getRemoteUrl();


        HeadMethod httpMethod = new HeadMethod(remoteUrl.toString());
        configureMethod(httpMethod);


        int answer = httpClient.executeMethod(httpMethod);
        if (answer != HttpStatus.SC_OK) {
            throw new IOException("Failed to perform GET on: " + remoteUrl + " as response was: " + answer);

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   * @return a Response object with response detail
   * @throws IOException
   */
  public Response head(Cluster cluster, String path, Header[] headers) 
      throws IOException {
    HeadMethod method = new HeadMethod();
    try {
      int code = execute(cluster, method, null, path);
      headers = method.getResponseHeaders();
      return new Response(code, headers, null);
    } finally {
      method.releaseConnection();
    }
  }

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        update(uri, relPath, new String[] {vUri}, UpdateInfo.UPDATE_BY_VERSION, removeExisting, sessionInfo);
    }


    private boolean exists(SessionInfo sInfo, String uri) {
        HeadMethod method = new HeadMethod(uri);
        try {
            int statusCode = getClient(sInfo).executeMethod(method);
            if (statusCode == DavServletResponse.SC_OK) {
                return true;
            }
        } catch (IOException e) {
            log.error("Unexpected error while testing existence of item.",e);
        } catch (RepositoryException e) {
            log.error(e.getMessage());
        } finally {
            method.releaseConnection();
        }
        return false;
    }

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        String  message = "hello ivy !";
        System.out.println("standard message : " + message);
        System.out.println("capitalized by " + WordUtils.class.getName() + " : " + WordUtils.capitalizeFully(message));
        
        HttpClient client = new HttpClient();
        HeadMethod head = new HeadMethod("http://www.ibiblio.org/");
        client.executeMethod(head);
        
        int status = head.getStatusCode();
        System.out.println("head status code with httpclient: "+status);
        head.releaseConnection();
        
        System.out.println("now check if httpclient dependency on commons-logging has been realized");
        Class clss = Class.forName("org.apache.commons.logging.Log");
        System.out.println("found logging class in classpath: "+clss);
    }

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            if (method.equals(POST)) {
                httpMethod = new PostMethod(urlStr);
            } else if (method.equals(PUT)){
                httpMethod = new PutMethod(urlStr);
            } else if (method.equals(HEAD)){
                httpMethod = new HeadMethod(urlStr);
            } else if (method.equals(TRACE)){
                httpMethod = new TraceMethod(urlStr);
            } else if (method.equals(OPTIONS)){
                httpMethod = new OptionsMethod(urlStr);
            } else if (method.equals(DELETE)){

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