PHP converter para Java

<?php

class xmlSender {
	
	/**
	 * Constructor
	 * Verify if the cURL is available 
	 */
	function xmlSender()
	{
		if ( !extension_loaded('curl') ) {
			trigger_error("You need cURL loaded to use this class", E_USER_ERROR);
		}
	}
	
	/**
	 * Sends the xml content using the cURL library.
	 */
	function send( $str_xml, $str_url, $str_page, $boo_ssl = false )
	{
		$str_header  = "POST " . $str_page . " HTTP/1.0 \r\n";
		$str_header .= "MIME-Version: 1.0 \r\n";
		$str_header .= "Content-type: application/PTI26 \r\n";
		$str_header .= "Content-length: " . strlen($str_xml) . " \r\n";
		$str_header .= "Content-transfer-encoding: text \r\n";
		$str_header .= "Request-number: 1 \r\n";
		$str_header .= "Document-type: Response\r\n";
		$str_header .= "Interface-Version: InPhonex 1.0 \r\n";
		$str_header .= "Connection: close \r\n\r\n";
		$str_header .= $str_xml;

		$res_curl = curl_init();
		curl_setopt($res_curl, CURLOPT_URL, $str_url);
		curl_setopt($res_curl, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($res_curl, CURLOPT_TIMEOUT, 30);    
		curl_setopt($res_curl, CURLOPT_CUSTOMREQUEST, $str_header);
		curl_setopt($res_curl, CURLOPT_FOLLOWLOCATION, 1);
		
		if ( $boo_ssl ) {
			curl_setopt($res_curl, CURLOPT_SSL_VERIFYHOST,  0);
			curl_setopt($res_curl, CURLOPT_SSL_VERIFYPEER, false);
		} 
		
		$str_data = curl_exec($res_curl);
		if ( curl_errno($res_curl) ) {
		   trigger_error(curl_error($res_curl), E_USER_ERROR);
		} else {
		   curl_close($res_curl);
		}
		
		return $str_data;
	}
}

$str_xml = '<voip>' .
'<auth>' .
'<customer_id>customerid</customer_id>' .
'<password>password</password>' .
'</auth>' .
'<request>' .
'<request_id>query</request_id>' .
'<query_id>cdr</query_id>' .
'<parameters>\n' .
'<start_date>2006-06-22</start_date>\n' .
'<end_date>2006-06-22</end_date>\n' .
'</parameters>\n' .
'</request>' .
'</voip>';

$o = new xmlSender;
print_r($o->send($str_xml, "https://www.inphonex.com", "/API/1.0/", true));
?>