Example usage for org.apache.commons.httpclient.methods HeadMethod releaseConnection

Introduction

In this page you can find the example usage for org.apache.commons.httpclient.methods HeadMethod releaseConnection.

Prototype

@Override
public void releaseConnection() 

Source Link

Document

Releases the connection being used by this HTTP method.

Usage

From source file:example.HelloIvy.java

public static void main(String[] args) throws Exception {
    String message = "Hello Ivy!";
    System.out.println("standard message : " + message);
    System.out.println(/*from   www  .  ja v a  2 s  .com*/
            "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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From source file:jshm.sh.Client.java

public static HeadMethod makeHeadRequest(String url) throws HttpException, IOException {
    HeadMethod method = new HeadMethod(url);
    getHttpClient().executeMethod(method);
    method.releaseConnection();
    return method;
}

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From source file:com.gisgraphy.domain.geoloc.importer.ImporterHelper.java

/**
 * @param URL the HTTP URL//from  w  w w  . ja  v a2 s  .c  o  m
 * @return The size of the HTTP file using HTTP head method.
 */
public static long getHttpFileSize(String URL) {
    HeadMethod headMethod = new HeadMethod(URL);

    try {
        client.executeMethod(headMethod);
        Header[] contentLengthHeaders = headMethod.getResponseHeaders("Content-Length");
        if (contentLengthHeaders.length == 1) {
            logger.error("HTTP file " + URL + " = " + contentLengthHeaders[0].getValue());
            return new Long(contentLengthHeaders[0].getValue());
        } else if (contentLengthHeaders.length <= 0) {
            return -1L;
        }
    } catch (HttpException e) {
        logger.error("can not execute head method for " + URL + " : " + e.getMessage(), e);
    } catch (IOException e) {
        logger.error("can not execute head method for " + URL + " : " + e.getMessage(), e);
    } finally {
        headMethod.releaseConnection();
    }
    return -1;

}

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From source file:net.sf.ufsc.http.HttpFile.java

/**
 * @see net.sf.ufsc.File#length()/* w w w .j  a va 2 s  . com*/
 */
public long length() throws java.io.IOException {
    HeadMethod method = new HeadMethod(this.uri.toString());

    try {
        this.execute(method);

        return Long.parseLong(method.getResponseHeader(CONTENT_LENGTH).getValue());
    } finally {
        method.releaseConnection();
    }
}

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From source file:fr.jayasoft.ivy.url.HttpClientHandler.java

public URLInfo getURLInfo(URL url, int timeout) {
    HeadMethod head = null;
    try {/*  w ww .j  a  v  a  2  s. com*/
        head = doHead(url, timeout);
        int status = head.getStatusCode();
        head.releaseConnection();
        if (status == HttpStatus.SC_OK) {
            return new URLInfo(true, getResponseContentLength(head), getLastModified(head));
        }
        if (status == HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED) {
            Message.error("Your proxy requires authentication.");
        } else if (String.valueOf(status).startsWith("4")) {
            Message.verbose("CLIENT ERROR: " + head.getStatusText() + " url=" + url);
        } else if (String.valueOf(status).startsWith("5")) {
            Message.warn("SERVER ERROR: " + head.getStatusText() + " url=" + url);
        }
        Message.debug("HTTP response status: " + status + "=" + head.getStatusText() + " url=" + url);
    } catch (HttpException e) {
        Message.error("HttpClientHandler: " + e.getMessage() + ":" + e.getReasonCode() + "=" + e.getReason()
                + " url=" + url);
    } catch (UnknownHostException e) {
        Message.warn("Host " + e.getMessage() + " not found. url=" + url);
        Message.info(
                "You probably access the destination server through a proxy server that is not well configured.");
    } catch (IOException e) {
        Message.error("HttpClientHandler: " + e.getMessage() + " url=" + url);
    } finally {
        if (head != null) {
            head.releaseConnection();
        }
    }
    return UNAVAILABLE;
}

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From source file:net.sf.ufsc.http.HttpFile.java

/**
 * @see net.sf.ufsc.File#lastModified()/*from w  ww.j  a v a 2s.  c o m*/
 */
public Date lastModified() throws java.io.IOException {
    HeadMethod method = new HeadMethod(this.uri.toString());

    try {
        this.execute(method);

        return DateUtil.parseDate(method.getResponseHeader(LAST_MODIFIED).getValue());
    } catch (DateParseException e) {
        throw new IOException(e.toString());
    } finally {
        method.releaseConnection();
    }
}

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From source file:com.owncloud.android.oc_framework.network.webdav.WebdavClient.java

/**
 * Check if a file exists in the OC server
 * //from  w w  w  .jav a  2  s. co  m
 * TODO replace with ExistenceOperation
 * 
 * @return              'true' if the file exists; 'false' it doesn't exist
 * @throws  Exception   When the existence could not be determined
 */
public boolean existsFile(String path) throws IOException, HttpException {
    HeadMethod head = new HeadMethod(mUri.toString() + WebdavUtils.encodePath(path));
    try {
        int status = executeMethod(head);
        Log.d(TAG, "HEAD to " + path + " finished with HTTP status " + status
                + ((status != HttpStatus.SC_OK) ? "(FAIL)" : ""));
        exhaustResponse(head.getResponseBodyAsStream());
        return (status == HttpStatus.SC_OK);

    } finally {
        head.releaseConnection(); // let the connection available for other methods
    }
}

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From source file:net.sf.taverna.t2.reference.impl.external.http.HttpReference.java

@Override
public String getCharset() throws DereferenceException {
    if (charsetFetched)
        return charsetName;
    charsetFetched = true;/*  ww  w .  ja v a  2s  .com*/
    if (!httpUrl.getProtocol().equals("http") && !httpUrl.getProtocol().equals("https")) {
        charsetName = null;
        return null;
    }
    HeadMethod method = new HeadMethod(httpUrl.toExternalForm());
    HttpClient httpClient = new HttpClient();
    try {
        httpClient.executeMethod(method);
        charsetName = method.getResponseCharSet();
        return charsetName;
    } catch (HttpException e) {
        // throw new DereferenceException(e);
    } catch (IOException e) {
        // throw new DereferenceException(e);
    } finally {
        method.releaseConnection();
    }
    charsetName = null;
    return null;
}

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From source file:eu.alefzero.webdav.WebdavClient.java

/**
 * Check if a file exists in the OC server
 * /*  w w w .  j ava2  s  .co  m*/
 * TODO replace with ExistenceOperation
 * 
 * @return              'true' if the file exists; 'false' it doesn't exist
 * @throws  Exception   When the existence could not be determined
 */
public boolean existsFile(String path) throws IOException, HttpException {
    HeadMethod head = new HeadMethod(mUri.toString() + WebdavUtils.encodePath(path));
    try {
        int status = executeMethod(head);
        Log_OC.d(TAG, "HEAD to " + path + " finished with HTTP status " + status
                + ((status != HttpStatus.SC_OK) ? "(FAIL)" : ""));
        exhaustResponse(head.getResponseBodyAsStream());
        return (status == HttpStatus.SC_OK);

    } finally {
        head.releaseConnection(); // let the connection available for other methods
    }
}

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From source file:com.sa.npopa.samples.hbase.rest.client.Client.java

/**
 * Send a HEAD request //  ww  w. j  a  v  a2 s .  co  m
 * @param cluster the cluster definition
 * @param path the path or URI
 * @param headers the HTTP headers to include in the request
 * @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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