Example usage for java.net URLConnection getHeaderFieldDate

Introduction

In this page you can find the example usage for java.net URLConnection getHeaderFieldDate.

Prototype

@SuppressWarnings("deprecation")
public long getHeaderFieldDate(String name, long Default) 

Source Link

Document

Returns the value of the named field parsed as date.

Usage

From source file:Main.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    URLConnection httpCon = (URLConnection) url.openConnection();

    long s = httpCon.getHeaderFieldDate("Date", 10000);
    System.out.println(s);/*from   www  .j a v  a  2 s.  c o  m*/

}

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From source file:org.pentaho.reporting.libraries.resourceloader.loader.URLResourceData.java

private void readMetaData(final URLConnection c) {
    modificationDate = c.getHeaderFieldDate("last-modified", -1);
    if (modificationDate <= 0) {
        if (isFixBrokenWebServiceDateHeader()) {
            modificationDate = System.currentTimeMillis();
        } else {//from w  ww .  j  a  v  a  2s .  com
            modificationDate = -1;
        }
    }
    contentLength = new Long(c.getContentLength());
    contentType = c.getHeaderField("content-type");
    metaDataOK = true;
    lastDateMetaDataRead = System.currentTimeMillis();
}

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From source file:piuk.blockchain.android.ui.WalletActivity.java

private void checkVersionAndTimeskewAlert() {
    new Thread() {
        @Override/*from  www .  jav a 2  s  .  c om*/
        public void run() {
            try {
                final int versionCode = getWalletApplication().applicationVersionCode();
                final URLConnection connection = new URL(Constants.VERSION_URL + "?current=" + versionCode)
                        .openConnection();
                connection.connect();
                final long serverTime = connection.getHeaderFieldDate("Date", 0);
                final InputStream is = connection.getInputStream();
                final BufferedReader reader = new BufferedReader(new InputStreamReader(is));
                // final String version = reader.readLine();
                reader.close();

                if (serverTime > 0) {
                    final long diffMinutes = Math.abs((System.currentTimeMillis() - serverTime) / 1000 / 60);

                    if (diffMinutes >= 60) {
                        runOnUiThread(new Runnable() {
                            public void run() {
                                if (!isFinishing())
                                    timeskewAlert(diffMinutes);
                            }
                        });
                    }
                }
            } catch (final Exception x) {
                x.printStackTrace();
            }
        }
    }.start();
}

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From source file:com.ibm.datapower.amt.clientAPI.Blob.java

/**
 * A check to verify that the content can be read when needed.
 * /*from  w  w  w .  j  av a2  s. c o  m*/
 * @return true if the content can be read, false otherwise. This is used
 *         mostly when a Blob was constructed from a File. This method
 *         checks to make sure the File exists and that the File is
 *         readable. If this Blob was constructed from a byte array 
 *         it always returns true.
 */
public boolean canRead() {
    final String METHOD_NAME = "canRead"; //$NON-NLS-1$
    boolean result = false;
    if (this.bytes != null) {
        result = true;
    } else if (this.file != null) {
        if (this.file.exists() && this.file.canRead()) {
            result = true;
        }
    } else if (this.url != null) {
        long lastModified = 0;
        try {
            URLConnection urlConn = this.url.openConnection();
            lastModified = urlConn.getHeaderFieldDate("Last-Modified", 0); //$NON-NLS-1$
        } catch (IOException e) {
            //It is unlikely that this exception will ever happen 
            //So eat the exception and the method keep lastModified at 0.
            //We will treat 0 as unreadable.
        }

        if (lastModified == 0) {
            result = false;
        } else {
            result = true;
        }
    } else {
        // this should not happen
        logger.logp(Level.INFO, CLASS_NAME, METHOD_NAME,
                Messages.getString("wamt.clientAPI.Blob.internalErr", this.toString())); //$NON-NLS-1$
    }
    return (result);
}

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