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


    private HeadMethod doHead(URL url, int timeout) throws IOException, HttpException {
        HttpClient client = getClient(url);
        client.setTimeout(timeout);


        HeadMethod head = new HeadMethod(url.toExternalForm());
        head.setDoAuthentication(useAuthentication(url) || useProxyAuthentication());
        client.executeMethod(head);
        return head;
    }

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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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        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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   * @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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   * @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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        state.setCredentials(authscope, creds);
        this.client.setState(state);


        this.server.setRequestHandler(handlerchain);


        HeadMethod head = new HeadMethod("/test/");
        try {
            this.client.executeMethod(head);
        } finally {
            head.releaseConnection();
        }
        assertNotNull(head.getStatusLine());
        assertEquals(HttpStatus.SC_OK, head.getStatusLine().getStatusCode());
        Header auth = head.getRequestHeader("Authorization");
        assertNotNull(auth);
        String expected = "Basic " + EncodingUtil.getAsciiString(
            Base64.encodeBase64(EncodingUtil.getAsciiBytes("testuser:testpass")));
        assertEquals(expected, auth.getValue());
        AuthState authstate = head.getHostAuthState();
        assertNotNull(authstate.getAuthScheme());
        assertTrue(authstate.getAuthScheme() instanceof BasicScheme);
        assertEquals("test", authstate.getRealm());
    }

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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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        state.setCredentials(null, null, cred);
        HostConfiguration hc = new HostConfiguration();
        hc.setHost(getHost(), getPort(), getProtocol());
        client.setHostConfiguration(hc);
        client.setState(state);
        HeadMethod method = new HeadMethod("/"+ getWebappContext() +"/auth/basic");
        client.executeMethod(method);
        method.releaseConnection();
        assertEquals(200, method.getStatusCode());
    }

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            t.printStackTrace();
            fail("Unable to execute method : " + t.toString());
        }


        String path = "/";
        HeadMethod method = new HeadMethod(path);


        try {
            client.executeMethod(method);
        } catch (Throwable t) {
            t.printStackTrace();
            fail("Unable to execute method : " + t.toString());
        }


        assertEquals(200, method.getStatusCode());


        method.recycle();
        method.setPath(path);


        try {
            client.executeMethod(method);
        } catch (Throwable t) {
            t.printStackTrace();
            fail("Unable to execute method : " + t.toString());
        }


        assertEquals(200, method.getStatusCode());


    }

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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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