Exam Support
OSGi--------------------------------------------------------------------
1)OPEN ECLIPSE (in my case
HELIOS JavaEE)
2)CREATE SERVICE PROJECT
i) File => new => OSGi bundle project => next
OR
File => new => plug-in project
=>eclipse version 3.6
ii) Project name = com.mtit.osgi.Service
iii) ECLIPSE VERSION 3.6 -> NEXT
iv) set ACTIVATOR name "ServerActivator"
v) finish
3)CREATE CLIENT PROJECT
i) File => new => plug-in project =>eclipse
version 3.6
ii) Project name = com.mtit.osgi.Client
iii) ECLIPSE VERSION 3.6 -> NEXT
iv) set ACTIVATOR name as "ClientActivator"
v) finish
4)CREATE INTERFACE IN SERVICE
PROJECT
i) right click package --> new --> interface
ii) name = "IServiceActions"
ii) add function skeletons to interface
public
String PrintService();
public String Hello();
5)IMPLEMENT INTERFACE IN
SERVICE PROJECT
i) right click package --> new --> class
(implements "IServiceActions")
ii) name = "ServiceActions"
iii) implement methods
public String PrintService(){
return "execute print
service";
}
public String Hello(){
return "Hello!!";
}
6)IMPLEMENT Start() FUNCTION
IN "ServerActivator"
i) create global variable in the class
org.osgi.framework.ServiceRegistration serviceReg;
ii) comment whatever lines inside Start() method(or keep
as it is)
iii) type
System.out.println("service
started");
IServiceActions
sactions = new ServiceActions();
serviceReg = context.registerService(IServiceActions.class.getName(),sactions,null);
7)IMPLEMENT Stop() FUNCTION
IN "ServerActivator"
i) comment whatever lines inside Stop() method(or keep as
it is)
ii) type
serviceReg.unregister();
System.out.println("service
stopped");
8)ADD org.osgi.service
PROJECT TO org.osgi.client BUILD PATH
i)right click org.osgi.client --> properties -->
java build path --> "project" tab
ii)add --> select org.osgi.service --> ok
6)IMPLEMENT Start() FUNCTION
IN "ClientActivator"
i) create global variable in the class
org.osgi.framework.ServiceReference serviceRef;
ii) comment whatever lines inside Start() method(or keep
as it is)
iii) type
System.out.println("client
starts!!");
serviceRef = context.getServiceReference(IServiceActions.class.getName());
ServiceActions
sactions = (ServiceActions)context.getService(serviceRef);
System.out.println(sactions.Hello());
System.out.println(sactions.PrintService());
7)NEED NOT TO IMPLEMENT
Stop() FUNCTION IN "ServerActivator".Keep as it is unless asked.
8)EXPORT org.osgi.service
RUNTIME PACKAGES
i) open org.osgi.service MANIFEST.MF file
ii) open "Runtine" tab --> add --> select
"org.osgi.service" --> ok
9)ADD DEPENDENCIES TO
org.osgi.client
i) open org.osgi.client MANIFEST.MF file
ii) open "Dependencies" tab --> add imported
package--> search and select "org.osgi.service" --> ok
10) RUN org.osgi.service (as
osgi framework project)
RUN org.osgi.client
----------------Client-------------------
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Client
Bundle-SymbolicName: com.mtit.osgi.Client
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: com.mtit.osgi.client.ClientActivator
Bundle-Vendor: MTIT
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Import-Package:
org.osgi.framework;version="1.3.0", com.mtit.osgi.service
------------Server----------------------
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Service
Bundle-SymbolicName: com.mtit.osgi.Service
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: com.mtit.osgi.service.ServerActivator
Bundle-Vendor: MTIT
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Bundle-ActivationPolicy: lazy
Export-Package: com.mtit.osgi.service
Import-Package: org.osgi.framework;version="1.3.0"
Configure osgiFramework(Run As OSGIFramework)
Deselect all
Add felix, eqoix.consol ,
Com.mtit.osgi.client/service
Runà after error add required bundle
***Coding Standard
Reflections-----------------------------------------------------------
2.1
Lab.Task1
import
java.lang.reflect.Modifier;
public class Task1 {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Class<?>
clazz = Class.forName("com.mtit.lab.task1.Task1");
System.out.println(clazz.getSimpleName());
System.out.println(clazz.getName());
System.out.println(clazz.getPackage());
System.out.println(clazz.getModifiers());
System.out.println(clazz.getDeclaredMethod("main", String[].class));
System.out.println(Modifier.toString(clazz.getDeclaredMethod("main", String[].class).getModifiers()));
}
catch
(ClassNotFoundException | NoSuchMethodException | SecurityException e) {
e.printStackTrace();
}
}
}
2.2
2015Q1Answers
public class Answer {
public static void main(String[] args) {
try {
Class<?>
clz = Class.forName("com.mtit.q1.User");
User
user = (User) clz.newInstance();
System.out.println(user.toString());
Field
username = clz.getDeclaredField("username");
username.setAccessible(true);
Field
passsowrd = clz.getDeclaredField("password");
passsowrd.setAccessible(true);
username.set(user, "MTIT_Admin");
passsowrd.set(user, "admin123");
System.out.println(user.toString());
}
catch
(ClassNotFoundException | SecurityException e) {
e.printStackTrace();
}
catch
(InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(NoSuchFieldException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------------------------------------
public class AnswerB {
public static void main(String[] args) {
Class<?>
clazz;
try {
clazz = Class.forName("com.mtit.q1.b.Employee");
// Q1 Part
B
Constructor[]
constructors = clazz.getConstructors();
for (Constructor constructor : constructors) {
Parameter[]
param = constructor.getParameters();
for (Parameter parameter : param) {
System.out.println(parameter.getType());
}
}
// Q1 Part
B
// This
Also should work. But its not working :( I don't know why
//
Employee emp
=(Employee)clazz.getConstructor(String.class,String.class,Integer.class,Double.class).newInstance("Nimal",
// "Colombo
10", 30001, 65000.80);
//
emp.displayEmployeeDetails();
Constructor[]
constructors1 = clazz.getConstructors();
for (Constructor constructor : constructors1) {
Employee
emp1 =
(Employee) constructor.newInstance("Nimal", "Colombo
10", 30001, 65000.80); // can
emp1.displayEmployeeDetails();
}
}
catch
(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
2.3
2015RQ1Answers
public class CalculateTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Class<?>
clz = Class.forName("com.mtit.q1.b.Calculate");
Calculate
calculate = (Calculate)clz.newInstance();
Field[]
fields = clz.getDeclaredFields();
for (Field field : fields) {
field.setAccessible(true);
System.out.println(field.getName()+" =
"+field.get(calculate));
}
}
catch
(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------------------------
try {
Class<?>
clz = Class.forName("com.mtit.q1.b.Calculate");
Calculate
calculate = (Calculate)clz.newInstance();
Method
method = clz.getDeclaredMethod("calculate", String.class);
method.invoke(calculate, "+");
}
Employee e = new Employee();
Class[] parameters = new Class[4];
parameters[0] = String.class;
parameters[1] = String.class;
parameters[2] = String.class;
parameters[3] = Double.TYPE;
Method method = e.getClass().getDeclaredMethod("display", parameters);
System.out.println( "Authors
= " + Arrays.asList((String [])clazz.getField("authors").get(b)));
Field price = clazz.getDeclaredField("price");
price.setDouble(b, 234.6);
Employee b = new Employee();
Class<?> clazz = b.getClass();
Method[] allMethods = clazz.getDeclaredMethods();
for(Method m:allMethods){
String s ="
Modifier => " +Modifier.toString(m.getModifiers())+"|| Return Type => " +m.getReturnType()+"|| Method Name => " + m.getName();
if(m.getParameterCount()>0){
java.lang.reflect.Parameter[] p = m.getParameters();
String pr ="";
for (int i = 0; i < p.length; i++) {
pr=pr+ p[i].toString()+" ,";
}
String e="
||parameters =>"+pr;
s=s+e;
}
System.out.println( s);
System.out.println("");
Useful Links:
***Coding Standard
XML-JSON------------------------------------------------------------
{ "store": {
"book": [
{ "category": "reference",
"author": "Nigel
Rees",
"title": "Sayings
of the Century",
"price": 8.95
},
{ "category": "fiction",
"author": "Evelyn
Waugh",
"title": "Sword
of Honour",
"price": 12.99
},
{ "category": "fiction",
"author": "Herman
Melville",
"title": "Moby
Dick",
"isbn": "0-553-21311-3",
"price": 8.99
},
{ "category": "fiction",
"author": "J. R.
R. Tolkien",
"title": "The
Lord of the Rings",
"isbn": "0-395-19395-8",
"price": 22.99
}
],
"bicycle": {
"color": "red",
"price": 19.95
}
}
}
|
XPath
|
JSONPath
|
Result
|
|
/store/book/author
|
$.store.book[*].author
|
the authors of all books in the store
|
|
//author
|
$..author
|
all authors
|
|
/store/*
|
$.store.*
|
all things in store, which are some books and
a red bicycle.
|
|
/store//price
|
$.store..price
|
the price of everything in the store.
|
|
//book[3]
|
$..book[2]
|
the third book
|
|
//book[last()]
|
$..book[(@.length-1)]
$..book[-1:] |
the last book in order.
|
|
//book[position()<3]
|
$..book[0,1]
$..book[:2] |
the first two books
|
|
//book[isbn]
|
$..book[?(@.isbn)]
|
filter all books with isbn number
|
|
//book[price<10]
|
$..book[?(@.price<10)]
|
filter all books cheapier than 10
|
|
//*
|
$..*
|
all Elements in XML document. All members of
JSON structure.
|
|
Path
|
JSONPath
|
Description
|
|
/
|
$
|
the root object/element
|
|
.
|
@
|
the current object/element
|
|
/
|
. or []
|
child operator
|
|
..
|
n/a
|
parent operator
|
|
//
|
..
|
recursive descent. JSONPath borrows this
syntax from E4X.
|
|
*
|
*
|
wildcard. All objects/elements regardless
their names.
|
|
@
|
n/a
|
attribute access. JSON structures don't have
attributes.
|
|
[]
|
[]
|
subscript operator. XPath uses it to iterate
over element collections and for predicates. In Javascript and JSON
it is the native array operator.
|
|
|
|
[,]
|
Union operator in XPath results in a
combination of node sets. JSONPath allows alternate names or array indices as
a set.
|
|
n/a
|
[start:end:step]
|
array slice operator borrowed from ES4.
|
|
[]
|
?()
|
applies a filter (script) expression.
|
|
n/a
|
()
|
script expression, using the underlying script
engine.
|
|
()
|
n/a
|
grouping in Xpath
|
Write to a json file
public class JSONSimpleWritingToFileExample {
public static void main(String[] args) {
JSONObject countryObj = new JSONObject();
countryObj.put("Name", "India");
countryObj.put("Population", new Integer(1000000));
JSONArray listOfStates = new
JSONArray();
listOfStates.add("Madhya Pradesh");
listOfStates.add("Maharastra");
listOfStates.add("Rajasthan");
countryObj.put("States", listOfStates);
try {
// Writing to a file
File file=new File("D:\\SLIIT\\CountryJSONFile.json");
file.createNewFile();
FileWriter fileWriter = new FileWriter(file);
System.out.println("Writing JSON object to file");
System.out.println("-----------------------");
System.out.print(countryObj);
fileWriter.write(countryObj.toJSONString());
fileWriter.flush();
fileWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Read from a
json file
public class JSONSimpleReadingFromFileExample
{
public static void main(String[] args) throws org.json.simple.parser.ParseException, ParseException {
JSONParser parser = new JSONParser();
try {
Object obj = parser.parse(new FileReader("E:\\CountryJSONFile.json"));
JSONObject jsonObject =
(JSONObject) obj;
String nameOfCountry = (String) jsonObject.get("Name");
System.out.println("Name Of Country: "+nameOfCountry);
long population = (Long) jsonObject.get("Population");
System.out.println("Population: "+population);
//String state =
with(Object).get("store.book[0].category");
//String state = (String)
jsonObject.get("States[0]");
//System.out.println("Name Of
STATE: "+state);
System.out.println("States are :");
JSONArray listOfStates = (JSONArray) jsonObject.get("States");
Iterator<String> iterator = listOfStates.iterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
} catch
(FileNotFoundException e) {
e.printStackTrace();
} catch
(IOException e) {
e.printStackTrace();
}
}
}
ESB---------------------------------------------------------------------
4.1
Inside Proxy
<inSequence>
<property
name="DISABLE_CHUNKING" value="true"
scope="axis2"/>
</inSequence>
4.2
Error Troubleshooting Tips for w3school service
(This only for w3school)
<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:x="http://www.w3schools.com/xml/">
<soap:Header/>
<soap:Body>
<x:CelsiusToFahrenheit>
<!--Optional:-->
<x:Celsius>0</x:Celsius>
</x:CelsiusToFahrenheit>
</soap:Body>
</soap:Envelope>
4.3
connector.xml
<?xml version="1.0"
encoding="UTF-8"?>
<connector>
<component
name="twitter" package="org.wso2.carbon.connector" >
<dependency component="twitter_config"/>
<dependency
component="twitter_direct_messages"/>
<dependency
component="twitter_friends_followers"/>
<description>WSO2
Connector for Twitter</description>
</component>
</connector>
4.4
Methods.csv
googlecontacts_config,init,userEmail:username:password,Configuration
file.
googlecontacts_contacts,retrieveAllContacts,,Retrieve all
user contacts.
4.5
Init.xml
<?xml version="1.0"
encoding="UTF-8"?>
<template name="init"
xmlns="http://ws.apache.org/ns/synapse">
<parameter
name="apiUrl" description="The apiUrl" />
<parameter
name="accessToken" description="The accessToken" />
<sequence>
<property
expression="$func:apiUrl" name="uri.var.url" />
<property
expression="$func:accessToken" name="uri.var.accessToken"
/>
<property
name="uri.var.auth" expression="fn:concat('Bearer ',
$ctx:uri.var.accessToken)"/>
<property
name="Authorization" expression="$ctx:uri.var.auth"
scope="transport"/>
</sequence>
</template>
4.6
templateMethod.xml
<?xml version="1.0"
encoding="UTF-8"?>
<template name="publishPost"
xmlns="http://ws.apache.org/ns/synapse">
<parameter
name="blogId" description="The blogId" />
<sequence>
<property
expression="$func:blogId" name="uri.var.blogId" />
<property
name="Accept-Encoding" action="remove"
scope="transport" />
<property
name="messageType" scope="axis2"
value="application/json" />
<call>
<endpoint>
<http
method="get"
uri-template="https://www.googleapis.com/blogger/v3/blogs/{uri.var.blogId}/posts"
/>
</endpoint>
</call>
</sequence>
</template>
4.7
Proxy.txt
<?xml version="1.0"
encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="GetBlogs"
transports="https,http"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<property
name="apiUrl" expression="json-eval($.apiUrl)"/>
<property name="accessToken"
expression="json-eval($.accessToken"/>
<property name="blogId"
expression="json-eval($.blogId)"/>
<blogger.init>
<apiUrl>{$ctx:apiUrl}</apiUrl>
<acessToken>{$ctx:acessToken}</acessToken>
</blogger.init>
<blogger.GetBlogs>
<blogId>{$ctx:blogId}</blogId>
</blogger.GetBlogs>
<property
name="messageType" value="application/json"
scope="axis2"/>
<respond/>
</inSequence>
<outSequence>
<log
level="full"/>
<send/>
</outSequence>
</target>
<description/>
</proxy>
Additional-------------------------Exam Support
OSGi--------------------------------------------------------------------
1)OPEN ECLIPSE (in my case
HELIOS JavaEE)
2)CREATE SERVICE PROJECT
i) File => new => OSGi bundle project => next
OR
File => new => plug-in project
=>eclipse version 3.6
ii) Project name = com.mtit.osgi.Service
iii) ECLIPSE VERSION 3.6 -> NEXT
iv) set ACTIVATOR name "ServerActivator"
v) finish
3)CREATE CLIENT PROJECT
i) File => new => plug-in project =>eclipse
version 3.6
ii) Project name = com.mtit.osgi.Client
iii) ECLIPSE VERSION 3.6 -> NEXT
iv) set ACTIVATOR name as "ClientActivator"
v) finish
4)CREATE INTERFACE IN SERVICE
PROJECT
i) right click package --> new --> interface
ii) name = "IServiceActions"
ii) add function skeletons to interface
public
String PrintService();
public String Hello();
5)IMPLEMENT INTERFACE IN
SERVICE PROJECT
i) right click package --> new --> class
(implements "IServiceActions")
ii) name = "ServiceActions"
iii) implement methods
public String PrintService(){
return "execute print
service";
}
public String Hello(){
return "Hello!!";
}
6)IMPLEMENT Start() FUNCTION
IN "ServerActivator"
i) create global variable in the class
org.osgi.framework.ServiceRegistration serviceReg;
ii) comment whatever lines inside Start() method(or keep
as it is)
iii) type
System.out.println("service
started");
IServiceActions
sactions = new ServiceActions();
serviceReg = context.registerService(IServiceActions.class.getName(),sactions,null);
7)IMPLEMENT Stop() FUNCTION
IN "ServerActivator"
i) comment whatever lines inside Stop() method(or keep as
it is)
ii) type
serviceReg.unregister();
System.out.println("service
stopped");
8)ADD org.osgi.service
PROJECT TO org.osgi.client BUILD PATH
i)right click org.osgi.client --> properties -->
java build path --> "project" tab
ii)add --> select org.osgi.service --> ok
6)IMPLEMENT Start() FUNCTION
IN "ClientActivator"
i) create global variable in the class
org.osgi.framework.ServiceReference serviceRef;
ii) comment whatever lines inside Start() method(or keep
as it is)
iii) type
System.out.println("client
starts!!");
serviceRef = context.getServiceReference(IServiceActions.class.getName());
ServiceActions
sactions = (ServiceActions)context.getService(serviceRef);
System.out.println(sactions.Hello());
System.out.println(sactions.PrintService());
7)NEED NOT TO IMPLEMENT
Stop() FUNCTION IN "ServerActivator".Keep as it is unless asked.
8)EXPORT org.osgi.service
RUNTIME PACKAGES
i) open org.osgi.service MANIFEST.MF file
ii) open "Runtine" tab --> add --> select
"org.osgi.service" --> ok
9)ADD DEPENDENCIES TO
org.osgi.client
i) open org.osgi.client MANIFEST.MF file
ii) open "Dependencies" tab --> add imported
package--> search and select "org.osgi.service" --> ok
10) RUN org.osgi.service (as
osgi framework project)
RUN org.osgi.client
----------------Client-------------------
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Client
Bundle-SymbolicName: com.mtit.osgi.Client
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: com.mtit.osgi.client.ClientActivator
Bundle-Vendor: MTIT
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Import-Package:
org.osgi.framework;version="1.3.0", com.mtit.osgi.service
------------Server----------------------
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Service
Bundle-SymbolicName: com.mtit.osgi.Service
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: com.mtit.osgi.service.ServerActivator
Bundle-Vendor: MTIT
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Bundle-ActivationPolicy: lazy
Export-Package: com.mtit.osgi.service
Import-Package: org.osgi.framework;version="1.3.0"
Configure osgiFramework(Run As OSGIFramework)
Deselect all
Add felix, eqoix.consol ,
Com.mtit.osgi.client/service
Runà after error add required bundle
***Coding Standard
Reflections-----------------------------------------------------------
2.1
Lab.Task1
import
java.lang.reflect.Modifier;
public class Task1 {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Class<?>
clazz = Class.forName("com.mtit.lab.task1.Task1");
System.out.println(clazz.getSimpleName());
System.out.println(clazz.getName());
System.out.println(clazz.getPackage());
System.out.println(clazz.getModifiers());
System.out.println(clazz.getDeclaredMethod("main", String[].class));
System.out.println(Modifier.toString(clazz.getDeclaredMethod("main", String[].class).getModifiers()));
}
catch
(ClassNotFoundException | NoSuchMethodException | SecurityException e) {
e.printStackTrace();
}
}
}
2.2
2015Q1Answers
public class Answer {
public static void main(String[] args) {
try {
Class<?>
clz = Class.forName("com.mtit.q1.User");
User
user = (User) clz.newInstance();
System.out.println(user.toString());
Field
username = clz.getDeclaredField("username");
username.setAccessible(true);
Field
passsowrd = clz.getDeclaredField("password");
passsowrd.setAccessible(true);
username.set(user, "MTIT_Admin");
passsowrd.set(user, "admin123");
System.out.println(user.toString());
}
catch
(ClassNotFoundException | SecurityException e) {
e.printStackTrace();
}
catch
(InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(NoSuchFieldException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------------------------------------
public class AnswerB {
public static void main(String[] args) {
Class<?>
clazz;
try {
clazz = Class.forName("com.mtit.q1.b.Employee");
// Q1 Part
B
Constructor[]
constructors = clazz.getConstructors();
for (Constructor constructor : constructors) {
Parameter[]
param = constructor.getParameters();
for (Parameter parameter : param) {
System.out.println(parameter.getType());
}
}
// Q1 Part
B
// This
Also should work. But its not working :( I don't know why
//
Employee emp
=(Employee)clazz.getConstructor(String.class,String.class,Integer.class,Double.class).newInstance("Nimal",
// "Colombo
10", 30001, 65000.80);
//
emp.displayEmployeeDetails();
Constructor[]
constructors1 = clazz.getConstructors();
for (Constructor constructor : constructors1) {
Employee
emp1 =
(Employee) constructor.newInstance("Nimal", "Colombo
10", 30001, 65000.80); // can
emp1.displayEmployeeDetails();
}
}
catch
(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
2.3
2015RQ1Answers
public class CalculateTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Class<?>
clz = Class.forName("com.mtit.q1.b.Calculate");
Calculate
calculate = (Calculate)clz.newInstance();
Field[]
fields = clz.getDeclaredFields();
for (Field field : fields) {
field.setAccessible(true);
System.out.println(field.getName()+" =
"+field.get(calculate));
}
}
catch
(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------------------------
try {
Class<?>
clz = Class.forName("com.mtit.q1.b.Calculate");
Calculate
calculate = (Calculate)clz.newInstance();
Method
method = clz.getDeclaredMethod("calculate", String.class);
method.invoke(calculate, "+");
}
Employee e = new Employee();
Class[] parameters = new Class[4];
parameters[0] = String.class;
parameters[1] = String.class;
parameters[2] = String.class;
parameters[3] = Double.TYPE;
Method method = e.getClass().getDeclaredMethod("display", parameters);
System.out.println( "Authors
= " + Arrays.asList((String [])clazz.getField("authors").get(b)));
Field price = clazz.getDeclaredField("price");
price.setDouble(b, 234.6);
Employee b = new Employee();
Class<?> clazz = b.getClass();
Method[] allMethods = clazz.getDeclaredMethods();
for(Method m:allMethods){
String s ="
Modifier => " +Modifier.toString(m.getModifiers())+"|| Return Type => " +m.getReturnType()+"|| Method Name => " + m.getName();
if(m.getParameterCount()>0){
java.lang.reflect.Parameter[] p = m.getParameters();
String pr ="";
for (int i = 0; i < p.length; i++) {
pr=pr+ p[i].toString()+" ,";
}
String e="
||parameters =>"+pr;
s=s+e;
}
System.out.println( s);
System.out.println("");
Useful Links:
***Coding Standard
XML-JSON------------------------------------------------------------
{ "store": {
"book": [
{ "category": "reference",
"author": "Nigel
Rees",
"title": "Sayings
of the Century",
"price": 8.95
},
{ "category": "fiction",
"author": "Evelyn
Waugh",
"title": "Sword
of Honour",
"price": 12.99
},
{ "category": "fiction",
"author": "Herman
Melville",
"title": "Moby
Dick",
"isbn": "0-553-21311-3",
"price": 8.99
},
{ "category": "fiction",
"author": "J. R.
R. Tolkien",
"title": "The
Lord of the Rings",
"isbn": "0-395-19395-8",
"price": 22.99
}
],
"bicycle": {
"color": "red",
"price": 19.95
}
}
}
|
XPath
|
JSONPath
|
Result
|
|
/store/book/author
|
$.store.book[*].author
|
the authors of all books in the store
|
|
//author
|
$..author
|
all authors
|
|
/store/*
|
$.store.*
|
all things in store, which are some books and
a red bicycle.
|
|
/store//price
|
$.store..price
|
the price of everything in the store.
|
|
//book[3]
|
$..book[2]
|
the third book
|
|
//book[last()]
|
$..book[(@.length-1)]
$..book[-1:] |
the last book in order.
|
|
//book[position()<3]
|
$..book[0,1]
$..book[:2] |
the first two books
|
|
//book[isbn]
|
$..book[?(@.isbn)]
|
filter all books with isbn number
|
|
//book[price<10]
|
$..book[?(@.price<10)]
|
filter all books cheapier than 10
|
|
//*
|
$..*
|
all Elements in XML document. All members of
JSON structure.
|
|
Path
|
JSONPath
|
Description
|
|
/
|
$
|
the root object/element
|
|
.
|
@
|
the current object/element
|
|
/
|
. or []
|
child operator
|
|
..
|
n/a
|
parent operator
|
|
//
|
..
|
recursive descent. JSONPath borrows this
syntax from E4X.
|
|
*
|
*
|
wildcard. All objects/elements regardless
their names.
|
|
@
|
n/a
|
attribute access. JSON structures don't have
attributes.
|
|
[]
|
[]
|
subscript operator. XPath uses it to iterate
over element collections and for predicates. In Javascript and JSON
it is the native array operator.
|
|
|
|
[,]
|
Union operator in XPath results in a
combination of node sets. JSONPath allows alternate names or array indices as
a set.
|
|
n/a
|
[start:end:step]
|
array slice operator borrowed from ES4.
|
|
[]
|
?()
|
applies a filter (script) expression.
|
|
n/a
|
()
|
script expression, using the underlying script
engine.
|
|
()
|
n/a
|
grouping in Xpath
|
Write to a json file
public class JSONSimpleWritingToFileExample {
public static void main(String[] args) {
JSONObject countryObj = new JSONObject();
countryObj.put("Name", "India");
countryObj.put("Population", new Integer(1000000));
JSONArray listOfStates = new
JSONArray();
listOfStates.add("Madhya Pradesh");
listOfStates.add("Maharastra");
listOfStates.add("Rajasthan");
countryObj.put("States", listOfStates);
try {
// Writing to a file
File file=new File("D:\\SLIIT\\CountryJSONFile.json");
file.createNewFile();
FileWriter fileWriter = new FileWriter(file);
System.out.println("Writing JSON object to file");
System.out.println("-----------------------");
System.out.print(countryObj);
fileWriter.write(countryObj.toJSONString());
fileWriter.flush();
fileWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Read from a
json file
public class JSONSimpleReadingFromFileExample
{
public static void main(String[] args) throws org.json.simple.parser.ParseException, ParseException {
JSONParser parser = new JSONParser();
try {
Object obj = parser.parse(new FileReader("E:\\CountryJSONFile.json"));
JSONObject jsonObject =
(JSONObject) obj;
String nameOfCountry = (String) jsonObject.get("Name");
System.out.println("Name Of Country: "+nameOfCountry);
long population = (Long) jsonObject.get("Population");
System.out.println("Population: "+population);
//String state =
with(Object).get("store.book[0].category");
//String state = (String)
jsonObject.get("States[0]");
//System.out.println("Name Of
STATE: "+state);
System.out.println("States are :");
JSONArray listOfStates = (JSONArray) jsonObject.get("States");
Iterator<String> iterator = listOfStates.iterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
} catch
(FileNotFoundException e) {
e.printStackTrace();
} catch
(IOException e) {
e.printStackTrace();
}
}
}
ESB---------------------------------------------------------------------
4.1
Inside Proxy
<inSequence>
<property
name="DISABLE_CHUNKING" value="true"
scope="axis2"/>
</inSequence>
4.2
Error Troubleshooting Tips for w3school service
(This only for w3school)
<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:x="http://www.w3schools.com/xml/">
<soap:Header/>
<soap:Body>
<x:CelsiusToFahrenheit>
<!--Optional:-->
<x:Celsius>0</x:Celsius>
</x:CelsiusToFahrenheit>
</soap:Body>
</soap:Envelope>
4.3
connector.xml
<?xml version="1.0"
encoding="UTF-8"?>
<connector>
<component
name="twitter" package="org.wso2.carbon.connector" >
<dependency component="twitter_config"/>
<dependency
component="twitter_direct_messages"/>
<dependency
component="twitter_friends_followers"/>
<description>WSO2
Connector for Twitter</description>
</component>
</connector>
4.4
Methods.csv
googlecontacts_config,init,userEmail:username:password,Configuration
file.
googlecontacts_contacts,retrieveAllContacts,,Retrieve all
user contacts.
4.5
Init.xml
<?xml version="1.0"
encoding="UTF-8"?>
<template name="init"
xmlns="http://ws.apache.org/ns/synapse">
<parameter
name="apiUrl" description="The apiUrl" />
<parameter
name="accessToken" description="The accessToken" />
<sequence>
<property
expression="$func:apiUrl" name="uri.var.url" />
<property
expression="$func:accessToken" name="uri.var.accessToken"
/>
<property
name="uri.var.auth" expression="fn:concat('Bearer ',
$ctx:uri.var.accessToken)"/>
<property
name="Authorization" expression="$ctx:uri.var.auth"
scope="transport"/>
</sequence>
</template>
4.6
templateMethod.xml
<?xml version="1.0"
encoding="UTF-8"?>
<template name="publishPost"
xmlns="http://ws.apache.org/ns/synapse">
<parameter
name="blogId" description="The blogId" />
<sequence>
<property
expression="$func:blogId" name="uri.var.blogId" />
<property
name="Accept-Encoding" action="remove"
scope="transport" />
<property
name="messageType" scope="axis2"
value="application/json" />
<call>
<endpoint>
<http
method="get"
uri-template="https://www.googleapis.com/blogger/v3/blogs/{uri.var.blogId}/posts"
/>
</endpoint>
</call>
</sequence>
</template>
4.7
Proxy.txt
<?xml version="1.0"
encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="GetBlogs"
transports="https,http"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<property
name="apiUrl" expression="json-eval($.apiUrl)"/>
<property name="accessToken"
expression="json-eval($.accessToken"/>
<property name="blogId"
expression="json-eval($.blogId)"/>
<blogger.init>
<apiUrl>{$ctx:apiUrl}</apiUrl>
<acessToken>{$ctx:acessToken}</acessToken>
</blogger.init>
<blogger.GetBlogs>
<blogId>{$ctx:blogId}</blogId>
</blogger.GetBlogs>
<property
name="messageType" value="application/json"
scope="axis2"/>
<respond/>
</inSequence>
<outSequence>
<log
level="full"/>
<send/>
</outSequence>
</target>
<description/>
</proxy>
Additional-------------------------------------------------------------
5.1
Get console Inputs
System.out.print("Enter number of rows: ");
int rows = input.nextInt();
System.out.print("Enter number of columns:
");
int cols = input.nextInt();
BufferedReader in = new BufferedReader(new
InputStreamReader(System.in)); word = in.readLine();
5.2
Read File
/**
* Another method to read all file
* @param path
* @param encoding
like StandardCharsets.UTF_8
* @return file
content
* @throws
IOException
*
*
http://stackoverflow.com/questions/326390/how-to-create-a-java-Exam Support
OSGi--------------------------------------------------------------------
1)OPEN ECLIPSE (in my case
HELIOS JavaEE)
2)CREATE SERVICE PROJECT
i) File => new => OSGi bundle project => next
OR
File => new => plug-in project
=>eclipse version 3.6
ii) Project name = com.mtit.osgi.Service
iii) ECLIPSE VERSION 3.6 -> NEXT
iv) set ACTIVATOR name "ServerActivator"
v) finish
3)CREATE CLIENT PROJECT
i) File => new => plug-in project =>eclipse
version 3.6
ii) Project name = com.mtit.osgi.Client
iii) ECLIPSE VERSION 3.6 -> NEXT
iv) set ACTIVATOR name as "ClientActivator"
v) finish
4)CREATE INTERFACE IN SERVICE
PROJECT
i) right click package --> new --> interface
ii) name = "IServiceActions"
ii) add function skeletons to interface
public
String PrintService();
public String Hello();
5)IMPLEMENT INTERFACE IN
SERVICE PROJECT
i) right click package --> new --> class
(implements "IServiceActions")
ii) name = "ServiceActions"
iii) implement methods
public String PrintService(){
return "execute print
service";
}
public String Hello(){
return "Hello!!";
}
6)IMPLEMENT Start() FUNCTION
IN "ServerActivator"
i) create global variable in the class
org.osgi.framework.ServiceRegistration serviceReg;
ii) comment whatever lines inside Start() method(or keep
as it is)
iii) type
System.out.println("service
started");
IServiceActions
sactions = new ServiceActions();
serviceReg = context.registerService(IServiceActions.class.getName(),sactions,null);
7)IMPLEMENT Stop() FUNCTION
IN "ServerActivator"
i) comment whatever lines inside Stop() method(or keep as
it is)
ii) type
serviceReg.unregister();
System.out.println("service
stopped");
8)ADD org.osgi.service
PROJECT TO org.osgi.client BUILD PATH
i)right click org.osgi.client --> properties -->
java build path --> "project" tab
ii)add --> select org.osgi.service --> ok
6)IMPLEMENT Start() FUNCTION
IN "ClientActivator"
i) create global variable in the class
org.osgi.framework.ServiceReference serviceRef;
ii) comment whatever lines inside Start() method(or keep
as it is)
iii) type
System.out.println("client
starts!!");
serviceRef = context.getServiceReference(IServiceActions.class.getName());
ServiceActions
sactions = (ServiceActions)context.getService(serviceRef);
System.out.println(sactions.Hello());
System.out.println(sactions.PrintService());
7)NEED NOT TO IMPLEMENT
Stop() FUNCTION IN "ServerActivator".Keep as it is unless asked.
8)EXPORT org.osgi.service
RUNTIME PACKAGES
i) open org.osgi.service MANIFEST.MF file
ii) open "Runtine" tab --> add --> select
"org.osgi.service" --> ok
9)ADD DEPENDENCIES TO
org.osgi.client
i) open org.osgi.client MANIFEST.MF file
ii) open "Dependencies" tab --> add imported
package--> search and select "org.osgi.service" --> ok
10) RUN org.osgi.service (as
osgi framework project)
RUN org.osgi.client
----------------Client-------------------
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Client
Bundle-SymbolicName: com.mtit.osgi.Client
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: com.mtit.osgi.client.ClientActivator
Bundle-Vendor: MTIT
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Import-Package:
org.osgi.framework;version="1.3.0", com.mtit.osgi.service
------------Server----------------------
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Service
Bundle-SymbolicName: com.mtit.osgi.Service
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: com.mtit.osgi.service.ServerActivator
Bundle-Vendor: MTIT
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Bundle-ActivationPolicy: lazy
Export-Package: com.mtit.osgi.service
Import-Package: org.osgi.framework;version="1.3.0"
Configure osgiFramework(Run As OSGIFramework)
Deselect all
Add felix, eqoix.consol ,
Com.mtit.osgi.client/service
Runà after error add required bundle
***Coding Standard
Reflections-----------------------------------------------------------
2.1
Lab.Task1
import
java.lang.reflect.Modifier;
public class Task1 {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Class<?>
clazz = Class.forName("com.mtit.lab.task1.Task1");
System.out.println(clazz.getSimpleName());
System.out.println(clazz.getName());
System.out.println(clazz.getPackage());
System.out.println(clazz.getModifiers());
System.out.println(clazz.getDeclaredMethod("main", String[].class));
System.out.println(Modifier.toString(clazz.getDeclaredMethod("main", String[].class).getModifiers()));
}
catch
(ClassNotFoundException | NoSuchMethodException | SecurityException e) {
e.printStackTrace();
}
}
}
2.2
2015Q1Answers
public class Answer {
public static void main(String[] args) {
try {
Class<?>
clz = Class.forName("com.mtit.q1.User");
User
user = (User) clz.newInstance();
System.out.println(user.toString());
Field
username = clz.getDeclaredField("username");
username.setAccessible(true);
Field
passsowrd = clz.getDeclaredField("password");
passsowrd.setAccessible(true);
username.set(user, "MTIT_Admin");
passsowrd.set(user, "admin123");
System.out.println(user.toString());
}
catch
(ClassNotFoundException | SecurityException e) {
e.printStackTrace();
}
catch
(InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(NoSuchFieldException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------------------------------------
public class AnswerB {
public static void main(String[] args) {
Class<?>
clazz;
try {
clazz = Class.forName("com.mtit.q1.b.Employee");
// Q1 Part
B
Constructor[]
constructors = clazz.getConstructors();
for (Constructor constructor : constructors) {
Parameter[]
param = constructor.getParameters();
for (Parameter parameter : param) {
System.out.println(parameter.getType());
}
}
// Q1 Part
B
// This
Also should work. But its not working :( I don't know why
//
Employee emp
=(Employee)clazz.getConstructor(String.class,String.class,Integer.class,Double.class).newInstance("Nimal",
// "Colombo
10", 30001, 65000.80);
//
emp.displayEmployeeDetails();
Constructor[]
constructors1 = clazz.getConstructors();
for (Constructor constructor : constructors1) {
Employee
emp1 =
(Employee) constructor.newInstance("Nimal", "Colombo
10", 30001, 65000.80); // can
emp1.displayEmployeeDetails();
}
}
catch
(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
2.3
2015RQ1Answers
public class CalculateTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Class<?>
clz = Class.forName("com.mtit.q1.b.Calculate");
Calculate
calculate = (Calculate)clz.newInstance();
Field[]
fields = clz.getDeclaredFields();
for (Field field : fields) {
field.setAccessible(true);
System.out.println(field.getName()+" =
"+field.get(calculate));
}
}
catch
(ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------------------------
try {
Class<?>
clz = Class.forName("com.mtit.q1.b.Calculate");
Calculate
calculate = (Calculate)clz.newInstance();
Method
method = clz.getDeclaredMethod("calculate", String.class);
method.invoke(calculate, "+");
}
Employee e = new Employee();
Class[] parameters = new Class[4];
parameters[0] = String.class;
parameters[1] = String.class;
parameters[2] = String.class;
parameters[3] = Double.TYPE;
Method method = e.getClass().getDeclaredMethod("display", parameters);
System.out.println( "Authors
= " + Arrays.asList((String [])clazz.getField("authors").get(b)));
Field price = clazz.getDeclaredField("price");
price.setDouble(b, 234.6);
Employee b = new Employee();
Class<?> clazz = b.getClass();
Method[] allMethods = clazz.getDeclaredMethods();
for(Method m:allMethods){
String s ="
Modifier => " +Modifier.toString(m.getModifiers())+"|| Return Type => " +m.getReturnType()+"|| Method Name => " + m.getName();
if(m.getParameterCount()>0){
java.lang.reflect.Parameter[] p = m.getParameters();
String pr ="";
for (int i = 0; i < p.length; i++) {
pr=pr+ p[i].toString()+" ,";
}
String e="
||parameters =>"+pr;
s=s+e;
}
System.out.println( s);
System.out.println("");
Useful Links:
***Coding Standard
XML-JSON------------------------------------------------------------
{ "store": {
"book": [
{ "category": "reference",
"author": "Nigel
Rees",
"title": "Sayings
of the Century",
"price": 8.95
},
{ "category": "fiction",
"author": "Evelyn
Waugh",
"title": "Sword
of Honour",
"price": 12.99
},
{ "category": "fiction",
"author": "Herman
Melville",
"title": "Moby
Dick",
"isbn": "0-553-21311-3",
"price": 8.99
},
{ "category": "fiction",
"author": "J. R.
R. Tolkien",
"title": "The
Lord of the Rings",
"isbn": "0-395-19395-8",
"price": 22.99
}
],
"bicycle": {
"color": "red",
"price": 19.95
}
}
}
|
XPath
|
JSONPath
|
Result
|
|
/store/book/author
|
$.store.book[*].author
|
the authors of all books in the store
|
|
//author
|
$..author
|
all authors
|
|
/store/*
|
$.store.*
|
all things in store, which are some books and
a red bicycle.
|
|
/store//price
|
$.store..price
|
the price of everything in the store.
|
|
//book[3]
|
$..book[2]
|
the third book
|
|
//book[last()]
|
$..book[(@.length-1)]
$..book[-1:] |
the last book in order.
|
|
//book[position()<3]
|
$..book[0,1]
$..book[:2] |
the first two books
|
|
//book[isbn]
|
$..book[?(@.isbn)]
|
filter all books with isbn number
|
|
//book[price<10]
|
$..book[?(@.price<10)]
|
filter all books cheapier than 10
|
|
//*
|
$..*
|
all Elements in XML document. All members of
JSON structure.
|
|
Path
|
JSONPath
|
Description
|
|
/
|
$
|
the root object/element
|
|
.
|
@
|
the current object/element
|
|
/
|
. or []
|
child operator
|
|
..
|
n/a
|
parent operator
|
|
//
|
..
|
recursive descent. JSONPath borrows this
syntax from E4X.
|
|
*
|
*
|
wildcard. All objects/elements regardless
their names.
|
|
@
|
n/a
|
attribute access. JSON structures don't have
attributes.
|
|
[]
|
[]
|
subscript operator. XPath uses it to iterate
over element collections and for predicates. In Javascript and JSON
it is the native array operator.
|
|
|
|
[,]
|
Union operator in XPath results in a
combination of node sets. JSONPath allows alternate names or array indices as
a set.
|
|
n/a
|
[start:end:step]
|
array slice operator borrowed from ES4.
|
|
[]
|
?()
|
applies a filter (script) expression.
|
|
n/a
|
()
|
script expression, using the underlying script
engine.
|
|
()
|
n/a
|
grouping in Xpath
|
Write to a json file
public class JSONSimpleWritingToFileExample {
public static void main(String[] args) {
JSONObject countryObj = new JSONObject();
countryObj.put("Name", "India");
countryObj.put("Population", new Integer(1000000));
JSONArray listOfStates = new
JSONArray();
listOfStates.add("Madhya Pradesh");
listOfStates.add("Maharastra");
listOfStates.add("Rajasthan");
countryObj.put("States", listOfStates);
try {
// Writing to a file
File file=new File("D:\\SLIIT\\CountryJSONFile.json");
file.createNewFile();
FileWriter fileWriter = new FileWriter(file);
System.out.println("Writing JSON object to file");
System.out.println("-----------------------");
System.out.print(countryObj);
fileWriter.write(countryObj.toJSONString());
fileWriter.flush();
fileWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Read from a
json file
public class JSONSimpleReadingFromFileExample
{
public static void main(String[] args) throws org.json.simple.parser.ParseException, ParseException {
JSONParser parser = new JSONParser();
try {
Object obj = parser.parse(new FileReader("E:\\CountryJSONFile.json"));
JSONObject jsonObject =
(JSONObject) obj;
String nameOfCountry = (String) jsonObject.get("Name");
System.out.println("Name Of Country: "+nameOfCountry);
long population = (Long) jsonObject.get("Population");
System.out.println("Population: "+population);
//String state =
with(Object).get("store.book[0].category");
//String state = (String)
jsonObject.get("States[0]");
//System.out.println("Name Of
STATE: "+state);
System.out.println("States are :");
JSONArray listOfStates = (JSONArray) jsonObject.get("States");
Iterator<String> iterator = listOfStates.iterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
} catch
(FileNotFoundException e) {
e.printStackTrace();
} catch
(IOException e) {
e.printStackTrace();
}
}
}
ESB---------------------------------------------------------------------
4.1
Inside Proxy
<inSequence>
<property
name="DISABLE_CHUNKING" value="true"
scope="axis2"/>
</inSequence>
4.2
Error Troubleshooting Tips for w3school service
(This only for w3school)
<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:x="http://www.w3schools.com/xml/">
<soap:Header/>
<soap:Body>
<x:CelsiusToFahrenheit>
<!--Optional:-->
<x:Celsius>0</x:Celsius>
</x:CelsiusToFahrenheit>
</soap:Body>
</soap:Envelope>
4.3
connector.xml
<?xml version="1.0"
encoding="UTF-8"?>
<connector>
<component
name="twitter" package="org.wso2.carbon.connector" >
<dependency component="twitter_config"/>
<dependency
component="twitter_direct_messages"/>
<dependency
component="twitter_friends_followers"/>
<description>WSO2
Connector for Twitter</description>
</component>
</connector>
4.4
Methods.csv
googlecontacts_config,init,userEmail:username:password,Configuration
file.
googlecontacts_contacts,retrieveAllContacts,,Retrieve all
user contacts.
4.5
Init.xml
<?xml version="1.0"
encoding="UTF-8"?>
<template name="init"
xmlns="http://ws.apache.org/ns/synapse">
<parameter
name="apiUrl" description="The apiUrl" />
<parameter
name="accessToken" description="The accessToken" />
<sequence>
<property
expression="$func:apiUrl" name="uri.var.url" />
<property
expression="$func:accessToken" name="uri.var.accessToken"
/>
<property
name="uri.var.auth" expression="fn:concat('Bearer ',
$ctx:uri.var.accessToken)"/>
<property
name="Authorization" expression="$ctx:uri.var.auth"
scope="transport"/>
</sequence>
</template>
4.6
templateMethod.xml
<?xml version="1.0"
encoding="UTF-8"?>
<template name="publishPost"
xmlns="http://ws.apache.org/ns/synapse">
<parameter
name="blogId" description="The blogId" />
<sequence>
<property
expression="$func:blogId" name="uri.var.blogId" />
<property
name="Accept-Encoding" action="remove"
scope="transport" />
<property
name="messageType" scope="axis2"
value="application/json" />
<call>
<endpoint>
<http
method="get"
uri-template="https://www.googleapis.com/blogger/v3/blogs/{uri.var.blogId}/posts"
/>
</endpoint>
</call>
</sequence>
</template>
4.7
Proxy.txt
<?xml version="1.0"
encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="GetBlogs"
transports="https,http"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<property
name="apiUrl" expression="json-eval($.apiUrl)"/>
<property name="accessToken"
expression="json-eval($.accessToken"/>
<property name="blogId"
expression="json-eval($.blogId)"/>
<blogger.init>
<apiUrl>{$ctx:apiUrl}</apiUrl>
<acessToken>{$ctx:acessToken}</acessToken>
</blogger.init>
<blogger.GetBlogs>
<blogId>{$ctx:blogId}</blogId>
</blogger.GetBlogs>
<property
name="messageType" value="application/json"
scope="axis2"/>
<respond/>
</inSequence>
<outSequence>
<log
level="full"/>
<send/>
</outSequence>
</target>
<description/>
</proxy>
Additional-------------------------------------------------------------
5.1
Get console Inputs
System.out.print("Enter number of rows: ");
int rows = input.nextInt();
System.out.print("Enter number of columns:
");
int cols = input.nextInt();
BufferedReader in = new BufferedReader(new
InputStreamReader(System.in)); word = in.readLine();
5.2
Read File
/**
* Another method to read all file
* @param path
* @param encoding
like StandardCharsets.UTF_8
* @return file
content
* @throws
IOException
*
*
http://stackoverflow.com/questions/326390/how-to-create-a-java-string-from-the-contents-of-a-file
* readFile("howto.xml",
StandardCharsets.UTF_8);
*/
public static String
readFile(String path, Charset encoding) throws IOException
{
byte[] encoded = Files.readAllBytes(Paths.get(path));
return new String(encoded, encoding);
}
Xpath: http://xmltoolbox.appspot.com/xpath_generator.html
jPath: //http://jsonpath.com/
json toXML: http://www.freeformatter.com/json-to-xml-converter.html#ad-output
***Coding Standard
-from-the-contents-of-a-file
* readFile("howto.xml",
StandardCharsets.UTF_8);
*/
public static String
readFile(String path, Charset encoding) throws IOException
{
byte[] encoded = Files.readAllBytes(Paths.get(path));
return new String(encoded, encoding);
}
Xpath: http://xmltoolbox.appspot.com/xpath_generator.html
jPath: //http://jsonpath.com/
json toXML: http://www.freeformatter.com/json-to-xml-converter.html#ad-output
***Coding Standard
------------------------------------
5.1
Get console Inputs
System.out.print("Enter number of rows: ");
int rows = input.nextInt();
System.out.print("Enter number of columns:
");
int cols = input.nextInt();
BufferedReader in = new BufferedReader(new
InputStreamReader(System.in)); word = in.readLine();
5.2
Read File
/**
* Another method to read all file
* @param path
* @param encoding
like StandardCharsets.UTF_8
* @return file
content
* @throws
IOException
*
*
http://stackoverflow.com/questions/326390/how-to-create-a-java-string-from-the-contents-of-a-file
* readFile("howto.xml",
StandardCharsets.UTF_8);
*/
public static String
readFile(String path, Charset encoding) throws IOException
{
byte[] encoded = Files.readAllBytes(Paths.get(path));
return new String(encoded, encoding);
}
Xpath: http://xmltoolbox.appspot.com/xpath_generator.html
jPath: //http://jsonpath.com/
json toXML: http://www.freeformatter.com/json-to-xml-converter.html#ad-output
***Coding Standard
