Develop Reference

Spring Boot Web RestTemplate Send Object as Query Param

I want to make a POST request with URL Query Params set to the values of an object.
For example
http://test/data?a=1&b=2&c=3
I want to make a post request to this URL with a class like this:
public class Data {
private Integer a;
private Integer b;
private Integer c;
}
I do NOT want to do each field manually, like this:
public void sendRequest(Data data) {
String url = UriComponentsBuilder.fromHttpUrl("http://test/")
.queryParam("a", data.getA())
.queryParam("b", data.getB())
.queryParam("c", data.getC())
.toUriString();
restTemplate.postForObject(url, body, Void.class);
}
Instead, I want to use the entire object:
public void sendRequest(Data data) {
String url = UriComponentsBuilder.fromHttpUrl("http://test/")
.queryParamsAll(data) //pseudo
.toUriString();
restTemplate.postForObject(url, body, Void.class);
}

Your requirement is like QS in js. Thx qianshui423/qs . It is implementation QS in java. It is coded by a Chinese guy. At first git clone it and use below cmd to build. You will get a jar called "qs-1.0.0.jar" in build/libs (JDK required version 8)
# cd qs directory
./gradlew build -x test
Import it, I do a simple demo as below. For your requirement, you can build class to transfer your Obj into QSObject. Besides toQString, QS can parse string to QSObject. I think it powerful.
import com.qs.core.QS;
import com.qs.core.model.QSObject;
public class Demo {
public static void main(String[] args) throws Exception{
QSObject qsobj = new QSObject();
qsobj.put("a",1);
qsobj.put("b",2);
qsobj.put("c",3);
String str = QS.toQString(qsobj);
System.out.println(str); // output is a=1&b=2&c=3
}
}

JMX process, is it possible to call an external application to handle access rights when client attempts access

I have an application that is running on localhost:1234, I am using jconsole to connect to this. The application has a password file to handle login.
I need to allow logging in based on different AD groups of the windows user. So for example, if they are in Group1 they will be given readwrite access, if they are Group2 they are given readonly access, and group3 is not given and access.
I have created an AD group handling application that can query a list of AD groups and return the required user access level and login details.
My problem: I want to connect to the application using jconsole via the command line using something like:
jconsole localhost:1234
Obviously this will fail to connect, because it's expecting a username and password.
Is there a way in which I can have my JMX application that's running on localhost:1234 wait for an incoming connection request and run my AD group handling application to determine their access level?
My application on localhost:1234 is very basic and looks like this:
import java.lang.management.ManagementFactory;
import javax.management.InstanceAlreadyExistsException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
public class SystemConfigManagement {
private static final int DEFAULT_NO_THREADS = 10;
private static final String DEFAULT_SCHEMA = "default";
public static void main(String[] args)
throws MalformedObjectNameException, InterruptedException,
InstanceAlreadyExistsException, MBeanRegistrationException,
NotCompliantMBeanException{
//Get the MBean server
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
//register the mBean
SystemConfig mBean = new SystemConfig(DEFAULT_NO_THREADS, DEFAULT_SCHEMA);
ObjectName name = new ObjectName("com.barc.jmx:type=SystemConfig");
mbs.registerMBean(mBean, name);
do{
Thread.sleep(2000);
System.out.println(
"Thread Count = " + mBean.getThreadCount()
+ ":::Schema Name = " + mBean.getSchemaName()
);
}while(mBean.getThreadCount() != 0);
}
}
and
package com.test.jmx;
public class SystemConfig implements SystemConfigMBean {
private int threadCount;
private String schemaName;
public SystemConfig(int numThreads, String schema){
this.threadCount = numThreads;
this.schemaName = schema;
}
#Override
public void setThreadCount(int noOfThreads) {
this.threadCount = noOfThreads;
}
#Override
public int getThreadCount() {
return this.threadCount;
}
#Override
public void setSchemaName(String schemaName) {
this.schemaName = schemaName;
}
#Override
public String getSchemaName() {
return this.schemaName;
}
#Override
public String doConfig() {
return "No of Threads=" + this.threadCount + " and DB Schema Name = " + this.schemaName;
}
}
[source : http://www.journaldev.com/1352/what-is-jmx-mbean-jconsole-tutorial]
Is there somewhere in main() where I can create this query to validate the user details using the AD group handling application?

The default RMI connector server cannot do that very well (you can provide your own JAAS module (UC3) or Authenticator (UC4)).
You might be better off using another protocol/implementation which does already delegate authentication. There are some webservice, REST- and even jboss remoting connectors and most of them can be authenticated via a container mechanism. However I think most of them are not easy to integrate.
If you use for example Jolokia (servlet), you could also use hawt.io as a very nice "AJAX" console. (I am not sure if jolokia actually ships a JMX client connector which you can use in JConsole but there are many alternative clients which are most of the time better for integration/automation).

JavaAgent in Lotus Notes 6.5 using axis api gives Exception "No implementation defined for org.apache.commons.logging.LogFactory"

I needed to write a JavaAgent in a Lotus Notes 6.5 DB to access a web service. I used Axis Apache API for this purpose. I created A Java agent and added the jar files of axis in the agent by using Edit Project button.
Below is the agent code:
import lotus.domino.*;
import javax.xml.*;
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import javax.xml.namespace.QName;
import java.net.URL;
public class JavaAgent extends AgentBase {
public void NotesMain() {
try {
Session session = getSession();
AgentContext agentContext = session.getAgentContext();
String endpoint = "http://ws.apache.org:5049/axis/services/echo";
Service service = new Service();
Call call = (Call) service.createCall();
call.setTargetEndpointAddress(new java.net.URL(endpoint) );
call.setOperationName(new QName("http://soapinterop.org/", "echoString"));
String ret = (String) call.invoke( new Object[] { "Hello!" } );
System.out.println("Sent 'Hello!', got '" + ret + "'");
} catch(Exception e) {
e.printStackTrace();
}
}
}
And below is the exception thrown:
java.lang.ExceptionInInitializerError: org.apache.commons.discovery.DiscoveryException: No implementation defined for org.apache.commons.logging.LogFactory
at org.apache.commons.discovery.tools.SPInterface.newInstance(SPInterface.java:197)
at org.apache.commons.discovery.tools.DiscoverClass.newInstance(DiscoverClass.java:579)
at org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:418)
at org.apache.commons.discovery.tools.DiscoverSingleton.find(DiscoverSingleton.java:378)
at org.apache.axis.components.logger.LogFactory$1.run(LogFactory.java:84)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.axis.components.logger.LogFactory.getLogFactory(LogFactory.java:80)
at org.apache.axis.components.logger.LogFactory.<clinit>(LogFactory.java:72)
at org.apache.axis.configuration.EngineConfigurationFactoryFinder.<clinit>(EngineConfigurationFactoryFinder.java:94)
at org.apache.axis.client.Service.<init>(Service.java:111)
at JavaAgent.NotesMain(JavaAgent.java:17)
at lotus.domino.AgentBase.runNotes(Unknown Source)
at lotus.domino.NotesThread.run(NotesThread.java:218)
I thried to follow some links on the internet like, But i was not able to get exactly what it was asking to do. eg: http://www-10.lotus.com/ldd/nd6forum.nsf/55c38d716d632d9b8525689b005ba1c0/40d033fba3897f4d85256cd30034026a?OpenDocument
Any help will be great. All i wanted to do is write an agent so that i can access a web service, say temperature conversion web service on w3schools. http://www.w3schools.com/webservices/tempconvert.asmx?op=FahrenheitToCelsius

I googled with your error message and this is the first hit:
http://croarkin.blogspot.fi/2010/08/commons-logging-headaches-with-axis.html
It suggests using a commons-logging.properties file with:
org.apache.commons.logging.Log = org.apache.commons.logging.impl.Log4JLogger
org.apache.commons.logging.LogFactory = org.apache.commons.logging.impl.LogFactoryImpl
or putting this to your code:
#BeforeClass
public static void beforeClass() {
System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.Log4JLogger");
System.setProperty("org.apache.commons.logging.LogFactory", "org.apache.commons.logging.impl.LogFactoryImpl");
}
Probably you've already tried this because it's the first hit with google but just in case...

How to propagate JAAS Subject when calling a remote EJB (RMI over IIOP) from a pure client

I am testing the propagation of JAAS Subject with a custom Principal from a standalone EJB client running on a raw Java runtime to a JavaEE server. I am targeting both JBoss and WebSphere implementations.
According to this forum thread I have expected it would work with JBoss easily.
Here is my EJB client code code snippet:
Subject subject = new Subject();
Principal myPrincipal = new MyPrincipal("me I myself");
subject.getPrincipals().add(myPrincipal);
PrivilegedExceptionAction<String> action = new PrivilegedExceptionAction<String>() {
public String run() throws Exception {
String result;
System.out.println("Current Subject: " + Subject.getSubject(AccessController.getContext()));
InitialContext ic = new InitialContext();
Business1 b = (Business1) ic.lookup("StatelessBusiness1");
result = b.getNewMessage("Hello World");
return result;
}
};
result = subject.doAs(subject, action);
System.out.println("result "+result);
Server-side code is:
public String getNewMessage(String msg) {
System.out.println("getNewMessage principal: " + sessionContext.getCallerPrincipal());
System.out.println("Current Subject: " + Subject.getSubject(AccessController.getContext()));
return "getNewMessage: " + msg;
}
To be sure, even if it is the default behaviour, I have added this section to my ejb-jar.xml session bean:
<security-identity>
<use-caller-identity/>
</security-identity>
My session bean is not protected by any role.
According to this IBM WebSphere infocenter section, I have also enabled the system property com.ibm.CSI.rmiOutboundPropagationEnabled=true.
Technically speaking the service call works properly either on JBoss or WebSphere. But the JAAS Subject including my custom principal created on the client is not propagated to the server. Or course, the Subject dumped just before JNDI context creation and EJB call is OK.
I run the same Java runtime version for server and client (IBM Java6 SR9 FP2...), MyPrincipal serializable class is available in server ClassPath (AppServer/lib/ext for WebSphere, server/default/lib for JBoss)
WebSphere dumps:
[8/31/12 11:56:26:514 CEST] 00000024 SystemOut O getNewMessage principal: UNAUTHENTICATED
[8/31/12 11:56:26:515 CEST] 00000024 SystemOut O Current Subject: null
JBoss dumps:
12:30:20,540 INFO [STDOUT] getNewMessage principal: anonymous
12:30:20,540 INFO [STDOUT] Current Subject: null
For sure, I have missed some kind of magic spell. Do you know which one ?

I suspect you don't have security enabled on the WAS server. Because security is not enabled and you didn't authenticate to WAS, there is no credential. Thus your call to getCallerPrincipal is returning UNAUTHENTICATED.
If you turn on application security in WAS, you'll have to authenticate via the CSIv2 protocol. Creating your own JAAS subject in a standalone client will not do it. If it could, then anyone could create a "hey, it's me" credential and login to any remote EJB they wanted.
Your code will work on the server by attaching your subject to the running thread of execution. Flowing subjects/credentials across the wire requires a protocol to effect the serialization of the subject info and ensure trust of the party asserting the identity in the credential. From a standalone client, WAS accepts user info in the form of basic authorization, LTPA, and kerberos. This can be configured on an inbound CSIv2 configuration within the admin console. It's documented in the Info Center link I referenced earlier.
It's fun stuff. Good luck.

probably this will help you with the price to use proprietary websphere-classes. as I remember , websphere does NOT propagate the jaas caller-subject, this is typical to ibm
package foo.bar;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.security.auth.Subject;
import javax.security.auth.login.CredentialExpiredException;
import org.apache.log4j.Logger;
import com.ibm.websphere.security.WSSecurityException;
import com.ibm.websphere.security.auth.CredentialDestroyedException;
import com.ibm.websphere.security.auth.WSSubject;
import com.ibm.websphere.security.cred.WSCredential;
public class IdentityHelper
{
private static final Logger log = Logger.getLogger(IdentityHelper.class);
private static final String CLASS_OBJECT = "java.util.HashMap";
private static final String KEY_OBJECT = "java.lang.String";
private static final String VALUE_OBJECT = "java.util.HashSet";
private Subject subject=null;
private WSCredential creds;
private Set publicCredentials=null;
public IdentityHelper(Subject _subject) throws WSSecurityException
{
if(_subject==null)
{
IdentityHelper.log.warn("given subject was null, using Caller-Subject or the RunAs-Subject!");
this.subject = WSSubject.getCallerSubject();
if(this.subject==null)this.subject=WSSubject.getRunAsSubject();
}
else
{
this.subject=_subject;
}
init();
}
public IdentityHelper() throws WSSecurityException
{
this.subject=WSSubject.getRunAsSubject();
if(this.subject==null)
{
IdentityHelper.log.warn("using Caller-Subject NOT the RunAs-Subject!");
this.subject = WSSubject.getCallerSubject();
}
init();
}
private void init() throws WSSecurityException
{
Set<WSCredential> credSet= this.subject.getPublicCredentials(WSCredential.class);
//set should contain exactly one WSCredential
if(credSet.size() > 1) throw new WSSecurityException("Expected one WSCredential, found " + credSet.size());
if(credSet.isEmpty())
{
throw new WSSecurityException("Found no credentials");
}
Iterator<WSCredential> iter= credSet.iterator();
this.creds=(WSCredential) iter.next();
this.publicCredentials=this.subject.getPublicCredentials();
}
public WSCredential getWSCredential() throws WSSecurityException
{
return this.creds;
}
public List<String> getGroups() throws WSSecurityException,CredentialDestroyedException,CredentialExpiredException
{
WSCredential c = this.getWSCredential();
return c.getGroupIds();
}
/**
* helper method for obtaining user attributes from Subject objects.
* #param subject
* #return
*/
#SuppressWarnings("unchecked")
public Map<String, Set<String>> getAttributes()
{
Map<String, Set<String>> attributes = null;
Iterator<?> i = this.subject.getPublicCredentials().iterator();
while (attributes == null && i.hasNext())
{
Map<String, Set<String>> tmp = null;
Object o = i.next();
if(IdentityHelper.log.isDebugEnabled())
{
IdentityHelper.log.debug("checking for attributes (class name): " + o.getClass().getName());
}
if(!o.getClass().getName().equals(CLASS_OBJECT))
continue;//loop through
tmp = (Map) o;
Object tObject = null;
Iterator<?> t = null;
t = tmp.keySet().iterator();
tObject = t.next();
if(IdentityHelper.log.isDebugEnabled())
{
IdentityHelper.log.debug("checking for attributes (key object name): " + tObject.getClass().getName());
}
if(!tObject.getClass().getName().equals(KEY_OBJECT))
continue;//loop through
t = tmp.values().iterator();
tObject = t.next();
if(IdentityHelper.log.isDebugEnabled())
{
IdentityHelper.log.debug("checking for attributes (value object name): " + tObject.getClass().getName());
}
if(!tObject.getClass().getName().equals(VALUE_OBJECT))
continue;//loop through
attributes = (Map) o;
}
if (attributes == null)
{
attributes = new HashMap<String, Set<String>>();
}
return attributes;
}
public Subject getSubject()
{
return this.subject;
}
protected Set getPublicCredentials() {
return publicCredentials;
}
}
see also: Getting the caller subject from the thread for JAAS and Getting the RunAs subject from the thread

How to call a web service (described by a wsdl) from java

Knowing nothing of web services, I'm just trying to call some "isAlive" service that is described by a wsdl.
This seems to me like something that should take no more than 2-5 lines of code but I can't seem to find anything but huge long examples involving 3rd party packages etc.
Anyone has any ideas? If it is always suppose to be long maybe a good explanation as to why it has to be so complicated will also be appreciated.
I'm using Eclipse and the wsdl is SOAP.

JDK 6 comes with jax-ws, everything you need to develop a client for a web service.
I'm unable to find some simple enough examples to post , but start at https://jax-ws.dev.java.net/
Edit: here's a simple example - a client for this web service: http://xmethods.com/ve2/ViewListing.po?key=427565
C:\temp> md generated
C:\temp>"c:\Program Files\Java\jdk1.6.0_17"\bin\wsimport -keep -d generated http://www50.brinkster.com/vbfacileinpt/np.asmx?wsdl
Create PrimeClient.java which look like:
import javax.xml.ws.WebServiceRef;
import com.microsoft.webservices.*;
//the above namespace is from the generated code from the wsdl.
public class PrimeClient {
//Cant get this to work.. #WebServiceRef(wsdlLocation="http://www50.brinkster.com/vbfacileinpt/np.asmx?wsdl")
static PrimeNumbers service;
public static void main(String[] args) {
try {
service = new PrimeNumbers();
PrimeClient client = new PrimeClient();
client.doTest(args);
} catch(Exception e) {
e.printStackTrace();
}
}
public void doTest(String[] args) {
try {
System.out.println("Retrieving the port from the following service: " + service);
PrimeNumbersSoap pm = service.getPrimeNumbersSoap();
System.out.println("Invoking the getPrimeNumbersSoap operation ");
System.out.println(pm.getPrimeNumbers(100));
} catch(Exception e) {
e.printStackTrace();
}
}
}
Compile and run:
C:\temp>"c:\Program Files\Java\jdk1.6.0_17"\bin\javac -cp generated PrimeClient.java
C:\temp>"c:\Program Files\Java\jdk1.6.0_17"\bin\java -cp .;generated PrimeClient
Retrieving the port from the following service: com.microsoft.webservices.PrimeN
umbers#19b5393
Invoking the getPrimeNumbersSoap operation
1,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97

There are plugins for IDE's which generate the needed code to consume a web service for you.
After the plugin generates you the base methods you simply call a web service like that:
TransportServiceSoap service = new TransportServiceLocator().getTransportServiceSoap();
service.getCities();
Have a look at http://urbas.tk/index.php/2009/02/20/eclipse-plug-in-as-a-web-service-client/

There are three ways to write a web service client
Dynamic proxy
Dynamic invocation interface (DII)
Application client
Example for Dynamic Proxy Client
import java.net.URL;
import javax.xml.rpc.Service;
import javax.xml.rpc.JAXRPCException;
import javax.xml.namespace.QName;
import javax.xml.rpc.ServiceFactory;
import dynamicproxy.HelloIF;
public class HelloClient {
public static void main(String[] args) {
try {
String UrlString = "Your WSDL URL"; //
String nameSpaceUri = "urn:Foo";
String serviceName = "MyHelloService";
String portName = "HelloIFPort";
System.out.println("UrlString = " + UrlString);
URL helloWsdlUrl = new URL(UrlString);
ServiceFactory serviceFactory =
ServiceFactory.newInstance();
Service helloService =
serviceFactory.createService(helloWsdlUrl,
new QName(nameSpaceUri, serviceName));
dynamicproxy.HelloIF myProxy =
(dynamicproxy.HelloIF)
helloService.getPort(
new QName(nameSpaceUri, portName),
dynamicproxy.HelloIF.class);
System.out.println(myProxy.sayHello("Buzz"));
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
I hope , this would solve your question.

The easiest I've found so far to use is the Idea IntelliJ wizard which - using Metro libraries - generate a very small code snippet which works fine with Java 6.