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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*
*******************************************************************************/
package org.onap.dmaap.dmf.mr.utils;
import java.io.IOException;
import java.io.InputStream;
import java.security.Principal;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import javax.servlet.http.HttpServletRequest;
import org.onap.dmaap.dmf.mr.beans.DMaaPContext;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
/**
* This is an utility class for various operations for formatting
* @author nilanjana.maity
*
*/
public class Utils {
private static final String DATE_FORMAT = "dd-MM-yyyy::hh:mm:ss:SSS";
public static final String CAMBRIA_AUTH_HEADER = "X-CambriaAuth";
private static final String AUTH_HEADER = "Authorization";
private static final String BATCH_ID_FORMAT = "000000";
private static final String X509_ATTR = "javax.servlet.request.X509Certificate";
private static final EELFLogger log = EELFManager.getInstance().getLogger(Utils.class);
private Utils() {
super();
}
/**
* Formatting the date
* @param date
* @return date or null
*/
public static String getFormattedDate(Date date) {
SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT);
if (null != date){
return sdf.format(date);
}
return null;
}
/**
* to get the details of User Api Key
* @param request
* @return authkey or null
*/
public static String getUserApiKey(HttpServletRequest request) {
final String auth = request.getHeader(CAMBRIA_AUTH_HEADER);
if (null != auth) {
final String[] splittedAuthKey = auth.split(":");
return splittedAuthKey[0];
}else if (null != request.getHeader(AUTH_HEADER) || null != request.getAttribute(X509_ATTR)){
/**
* AAF implementation enhancement
*/
Principal principal = request.getUserPrincipal();
if(principal != null){
String name = principal.getName();
return name.substring(0, name.lastIndexOf('@'));
}
log.warn("No principal has been provided on HTTP request");
}
return null;
}
/**
* to format the batch sequence id
* @param batchId
* @return batchId
*/
public static String getFromattedBatchSequenceId(Long batchId) {
DecimalFormat format = new DecimalFormat(BATCH_ID_FORMAT);
return format.format(batchId);
}
/**
* to get the message length in bytes
* @param message
* @return bytes or 0
*/
public static long messageLengthInBytes(String message) {
if (null != message) {
return message.getBytes().length;
}
return 0;
}
/**
* To get transaction id details
* @param transactionId
* @return transactionId or null
*/
public static String getResponseTransactionId(String transactionId) {
if (null != transactionId && !transactionId.isEmpty()) {
return transactionId.substring(0, transactionId.lastIndexOf("::"));
}
return null;
}
/**
* get the thread sleep time
* @param ratePerMinute
* @return ratePerMinute or 0
*/
public static long getSleepMsForRate ( double ratePerMinute )
{
if ( ratePerMinute <= 0.0 )
{
return 0;
}
return Math.max ( 1000, Math.round ( 60 * 1000 / ratePerMinute ) );
}
public static String getRemoteAddress(DMaaPContext ctx)
{
String reqAddr = ctx.getRequest().getRemoteAddr();
String fwdHeader = getFirstHeader("X-Forwarded-For",ctx);
return ((fwdHeader != null) ? fwdHeader : reqAddr);
}
public static String getFirstHeader(String h,DMaaPContext ctx)
{
List l = getHeader(h,ctx);
return ((l.size() > 0) ? (String)l.iterator().next() : null);
}
public static List<String> getHeader(String h,DMaaPContext ctx)
{
LinkedList list = new LinkedList();
Enumeration e = ctx.getRequest().getHeaders(h);
while (e.hasMoreElements())
{
list.add(e.nextElement().toString());
}
return list;
}
public static String getKafkaproperty(){
InputStream input = new Utils().getClass().getResourceAsStream("/kafka.properties");
Properties props = new Properties();
try {
props.load(input);
} catch (IOException e) {
log.error("failed to read kafka.properties");
}
return props.getProperty("key");
}
public static boolean isCadiEnabled(){
boolean enableCadi=false;
if(System.getenv("enableCadi")!=null&&System.getenv("enableCadi").equals("true")){
enableCadi=true;
}
return enableCadi;
}
}
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