I'm writing my first lines for jbehave.. and already bumping with this error:
import org.jbehave.core.annotations.Given;
import org.jbehave.core.steps.Steps;
public class UserDetailsInputSteps extends Steps
{
#Given("UI for user profile")
public void launchUI(){
}
}
Error: '#Given' not applicable to method
Cannot get what I'm doing wrong. Thanks for any help.
Related
We have many small files that need combining. In Scalding you can use TextLine to read files as text lines. The problem is we get 1 mapper per file, but we want to combine multiple files so that they are processed by 1 mapper.
I understand we need to change the input format to an implementation of CombineFileInputFormat, and this may involve using cascadings CombinedHfs. We cannot work out how to do this, but it should be just a handful of lines of code to define our own Scalding source called, say, CombineTextLine.
Many thanks to anyone who can provide the code to do this.
As a side question, we have some data that is in s3, it would be great if the solution given works for s3 files - I guess it depends on whether CombineFileInputFormat or CombinedHfs works for s3.
You get the idea in your question, so here is what possibly is a solution for you.
Create your own input format that extends the CombineFileInputFormat and uses your own custom RecordReader. I am showing you Java code, but you could easily convert it to scala if you want.
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.FileSplit;
import org.apache.hadoop.mapred.InputSplit;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.LineRecordReader;
import org.apache.hadoop.mapred.RecordReader;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.mapred.lib.CombineFileInputFormat;
import org.apache.hadoop.mapred.lib.CombineFileRecordReader;
import org.apache.hadoop.mapred.lib.CombineFileSplit;
public class CombinedInputFormat<K, V> extends CombineFileInputFormat<K, V> {
public static class MyKeyValueLineRecordReader implements RecordReader<LongWritable,Text> {
private final RecordReader<LongWritable,Text> delegate;
public MyKeyValueLineRecordReader(CombineFileSplit split, Configuration conf, Reporter reporter, Integer idx) throws IOException {
FileSplit fileSplit = new FileSplit(split.getPath(idx), split.getOffset(idx), split.getLength(idx), split.getLocations());
delegate = new LineRecordReader(conf, fileSplit);
}
#Override
public boolean next(LongWritable key, Text value) throws IOException {
return delegate.next(key, value);
}
#Override
public LongWritable createKey() {
return delegate.createKey();
}
#Override
public Text createValue() {
return delegate.createValue();
}
#Override
public long getPos() throws IOException {
return delegate.getPos();
}
#Override
public void close() throws IOException {
delegate.close();
}
#Override
public float getProgress() throws IOException {
return delegate.getProgress();
}
}
#Override
public RecordReader getRecordReader(InputSplit split, JobConf job, Reporter reporter) throws IOException {
return new CombineFileRecordReader(job, (CombineFileSplit) split, reporter, (Class) MyKeyValueLineRecordReader.class);
}
}
Then you need to extend the TextLine class and make it use your own input format you just defined (Scala code from now on).
import cascading.scheme.hadoop.TextLine
import cascading.flow.FlowProcess
import org.apache.hadoop.mapred.{OutputCollector, RecordReader, JobConf}
import cascading.tap.Tap
import com.twitter.scalding.{FixedPathSource, TextLineScheme}
import cascading.scheme.Scheme
class CombineFileTextLine extends TextLine{
override def sourceConfInit(flowProcess: FlowProcess[JobConf], tap: Tap[JobConf, RecordReader[_, _], OutputCollector[_, _]], conf: JobConf) {
super.sourceConfInit(flowProcess, tap, conf)
conf.setInputFormat(classOf[CombinedInputFormat[String, String]])
}
}
Create a scheme for the for your combined input.
trait CombineFileTextLineScheme extends TextLineScheme{
override def hdfsScheme = new CombineFileTextLine().asInstanceOf[Scheme[JobConf,RecordReader[_,_],OutputCollector[_,_],_,_]]
}
Finally, create your source class:
case class CombineFileMultipleTextLine(p : String*) extends FixedPathSource(p :_*) with CombineFileTextLineScheme
If you want to use a single path instead of multiple ones, the change to your source class is trivial.
I hope that helps.
this should do the trick, ya man? - https://wiki.apache.org/hadoop/HowManyMapsAndReduces
I try to make a cordova plugin in IBM worklight.
Javascript:
HelloWorld = {
sayHello: function (success, fail, resultType) {
Cordova.exec(
success,
fail,
"HelloWorld",
"HelloWorld",
[resultType]
);
}
};
function callFunction() {
HelloWorld.sayHello(basarili, basarisiz, "sinan");
}
Java:
package com.Cordova1;
import org.apache.cordova.api.CordovaPlugin;
import org.json.JSONArray;
import android.util.Log;
public class HelloWorld extends CordovaPlugin {
public boolean execute(String arg0, JSONArray arg1, String arg2) {
Log.d("HelloPlugin", "Hello, this is a native function called from PhoneGap/Cordova!");
return true;
}
}
When I call callFunction I see that fail function worked. Also, I can't see any HelloPlugin message in log window.
What can I do ?
module 09_3 ApacheCordovaPlugin in the samples is indeed using the deprecated Plugin class instead of CordovaPlugin. I have rewritten the HelloWorldPlugin class in module 09_3 to eliminate the deprecated Cordova Plugin API usage. The sample is working fine.
package com.AndroidApacheCordovaPlugin;
import org.apache.cordova.api.CallbackContext;
import org.apache.cordova.api.CordovaPlugin;
import org.json.JSONArray;
import org.json.JSONException;
public class HelloWorldPlugin extends CordovaPlugin {
#Override
public boolean execute(String action, JSONArray arguments,
CallbackContext callbackContext) throws JSONException {
if (action.equals("sayHello")) {
String responseText = "Hello world";
try {
responseText += ", " + arguments.getString(0);
callbackContext.success(responseText);
return true;
} catch (JSONException e) {
callbackContext.error(e.getMessage());
}
} else {
callbackContext.error("Invalid action: " + action);
return false;
}
return false;
}
}
A couple of things, 1) did you add a line for your plugin into the config.xml file? and 2) you seem to be overriding the wrong method in CordovaPlugin. It should be:
public boolean execute(String action, JSONArray args, CallbackContext callbackContext)
I was having the same problem. Have a look at module 09_3 ApacheCordovaPlugin in the samples. That example does work for me, but they are using the deprecated Plugin class instead of CordovaPlugin.
import org.apache.cordova.api.Plugin;
import org.apache.cordova.api.PluginResult;
...
public class HelloWorldPlugin extends Plugin {
public PluginResult execute(String action, JSONArray arguments, String callbackId) {
The deprecated class returns PluginResult, not a boolean. I've tried the same code using the CordovaPlugin signature and that results in a fail every time. Apparently whatever WL code is invoking the plugin is apparently expecting the signature of the deprecated class.
I solved the problem.
I use the version 2.4 of cordova. I can't understand why it didn't work. when I use "cordova.exec" it doesn't work, however when I use PhoneGap.exec it works.
Also I looked for the definition;
In the last line of cordova-2.4.0.js, it says
var PhoneGap = cordova;
Ok, Phonegap was defined, but I don't know why cordova doesn't work.
Thank you for your answers.
I am trying to implement resuable Custom Services without using ext and servicebuilder.
I referred this article: http://www.devatwork.nl/2010/04/implementing-a-reusable-liferay-service-without-ext-or-service-builder/ , but I am confused in how should I implement this using eclipse? Following are the steps that I followed to do this:
- Created liferay-plugin project within eclipse.
- Created package containing CustomServices (interface) and CustomServicesUtil.
- Created jar file of package in step 2.
- Placed that jar file in tomcat\lib\ext\
- Then created package (with in same liferay-plugin project), that includes CutomServicesImpl and CustomServicesBaseImpl
- Defined portlet-spring.xml, service.properties, and modified web.xml (as per the article), and finally deployed the project.
On deployment, project is deployed successfully, but when I am trying to use customMethods defined in CustomServicesImpl through CustomServicesUtil.getCustomMethod(), I am getting the following error:
"java.lang.ClassNotFoundException: com.demo.custom.services.CustomServicesUtil"
I configure build path to include customservices.jar file but its not working out, still showing the same error. I don’t know whether this is the correct way to implement resuable services or not. I tried this so that i can make use of custom method in one of my project.
Here is the code for custom services:
CustomServices.java
package com.demo.custom.services;
import com.liferay.portal.model.User;
public interface CustomServices {
String getCustomName(User user);
}
CustomServicesUtil.java
package com.demo.custom.services;
import com.liferay.portal.model.User;
public class CustomServicesUtil {
private static CustomServices services;
public static CustomServices getServices() {
if (services == null) {
throw new RuntimeException("Custom Services not set");
}
return services;
}
public void setServices(CustomServices pServices) {
services = pServices;
}
public static String getCustomName(User user){
return getServices().getCustomName(user);
}
}
CustomServicesBaseImpl.java
package com.demo.custom.services.impl;
import com.demo.custom.services.CustomServices;
import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.service.base.PrincipalBean;
import com.liferay.portal.util.PortalUtil;
public abstract class CustomServicesBaseImpl extends PrincipalBean implements CustomServices {
protected CustomServices services;
public CustomServices getServices() {
return services;
}
public void setServices(CustomServices pServices) {
this.services = pServices;
}
protected void runSQL(String sql) throws SystemException {
try {
PortalUtil.runSQL(sql);
} catch (Exception e) {
throw new SystemException(e);
}
}
}
CustomServicesImpl.java
package com.demo.custom.services.impl;
import com.liferay.portal.model.User;
public class CustomServicesImpl extends CustomServicesBaseImpl {
#Override
public String getCustomName(User user) {
// TODO Auto-generated method stub
if(user == null){
return null;
}else{
return new StringBuffer().append(user.getFirstName()).append(" ").append(user.getLastName()).toString();
}
}
}
Here is the code of controller class of my another portlet, where i am making use of this service.
HelloCustomName.java
package com.test;
import java.io.IOException;
import javax.portlet.PortletException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import com.demo.custom.services.CustomServicesUtil;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.model.User;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.util.bridges.mvc.MVCPortlet;
public class HelloCustomName extends MVCPortlet {
#Override
public void doView(RenderRequest renderRequest,
RenderResponse renderResponse) throws IOException, PortletException {
System.out.println("--doview----");
ThemeDisplay themeDisplay = (ThemeDisplay)renderRequest.getAttribute(WebKeys.THEME_DISPLAY);
User user = themeDisplay.getUser();
String customName = CustomServicesUtil.getCustomName(user); //getting error here
System.out.println("customName:" + customName);
}
}
Please point me on how to implement resuable services? Any guidance will be really useful.
Thanks.
My mind, you don't need the complexity of services. Simply make utility classes and put this in to tomcat/lib/ext. Be sure that tomcat/lib/ext is correct configured in tomcat/conf/catalina.properties, something like this:
common.loader=${catalina.home}/lib/ext/*.jar
I'm developing a javadesktop application in Netbeans 6.9 and everything is perfect but...it gives me an error on this :
#Action
public void showAboutBox()
{
if (aboutBox == null) {
JFrame mainFrame = Mp4App.getApplication().getMainFrame();
aboutBox = new mp4AboutBox(mainFrame);
aboutBox.setLocationRelativeTo(mainFrame);
}
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
#SuppressWarnings("unchecked")
and this is the error :
Compiling 1 source file to Q:\Mp3 App\mp4-beta\mp4\build\classes
Q:\Mp3 App\mp4-beta\mp4\src\mp4\Mp4View.java:223: cannot find symbol
symbol : class mp4AboutBox
location: class mp4.Mp4View
aboutBox = new mp4AboutBox(mainFrame);
1 error
Q:\Mp3 App\mp4-beta\mp4\nbproject\build-impl.xml:603:
The following error occurred while executing this line:
Q:\Mp3 App\mp4-beta\mp4\nbproject\build-impl.xml:284: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 8 seconds)
the real problem is that this is the code generated from netbeans...also if you create a new Project->java->Destop Application and you leave it there without adding nothing,it gives always me the same problem... what to do ????????????
netbeans version: 6.9.1
jdk version: 7
O.S : Windows 7 32 bit
You shouldn't create your GUI using Netbeans because it generates unreadable code. The Swing-Package is pretty straight forward, so you should use it.
To the Error: Do you have a mp4AboutBox-class and what is in it?
You might be missing an import. Provide your imports in that file.
I had a similar question that I got the solution to by re-installing netbeans 6.9.1.
This is the solution I came up with from that:
TestProject class:
import org.jdesktop.application.Application;
import org.jdesktop.application.SingleFrameApplication;
public class TestProject extends SingleFrameApplication {
#Override protected void startup() {
show(new AppView(this));
}
#Override protected void configureWindow(java.awt.Window root) { }
public static TestProject getApplication() {
return Application.getInstance(TestProject.class);
}
public static void main(String[] args) {
launch(TestProject.class, args);
}
}
AppView JFrame:
import org.jdesktop.application.FrameView;
import org.jdesktop.application.SingleFrameApplication;
public class AppView extends FrameView {
public AppView(SingleFrameApplication app) {
super(app);
JFrame mainFrame = TestProject.getApplication().getMainFrame();
AboutBox newAboutBox = new AboutBox();
newAboutBox.setLocationRelativeTo(mainFrame);
TestProject.getApplication().show(newAboutBox);
}
}
i have following code
package org.david.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.event.logical.shared.BeforeSelectionEvent;
import com.google.gwt.event.logical.shared.BeforeSelectionHandler;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.TabBar;
public class TabBar1 implements EntryPoint{
#Override
public void onModuleLoad(){
TabBar bar=new TabBar();
bar.addTab("foo");
bar.addTab("bar");
bar.addTab("baz");
bar.addSelectionHandler(new SelectionHandler(){
public void onSelection(SelectionEvent event){
//let user know what you just did
Window.alert("you clicked tab"+event.getSelectedItem());
}
});
// Just for fun, let's disallow selection of 'bar'.
bar.addBeforeSelectionHandler(new BeforeSelectionHandler() {
public void onBeforeSelection(BeforeSelectionEvent event) {
if (event.getItem().intValue() == 1) {
event.cancel();
}
}
});
}
}
but i have following errors
ompiling 1 source file to C:\XAMPP\xampp\htdocs\TabBar1\build\web\WEB-INF\classes
C:\XAMPP\xampp\htdocs\TabBar1\src\java\org\david\client\TabBar1.java:28: cannot find symbol
symbol : method intValue()
location: class java.lang.Object
if (event.getItem().intValue() == 1) {
Note: C:\XAMPP\xampp\htdocs\TabBar1\src\java\org\david\client\TabBar1.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
C:\XAMPP\xampp\htdocs\TabBar1\nbproject\build-impl.xml:518: The following error occurred while executing this line:
C:\XAMPP\xampp\htdocs\TabBar1\nbproject\build-impl.xml:248: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)
please help
BeforeSelectionEvent should be BeforeSelectionEvent<Integer> so that getItem() returns an Integer instead of an Object.
Object doesn't have an intValue() method, and Integer does.
You should have also seen an unchecked conversion warning in your compile saying something to that effect.