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  • Sensible unit test possible?

    - by nkr1pt
    Could a sensible unit test be written for this code which extracts a rar archive by delegating it to a capable tool on the host system if one exists? I can write a test case based on the fact that my machine runs linux and the unrar tool is installed, but if another developer who runs windows would check out the code the test would fail, although there would be nothing wrong with the extractor code. I need to find a way to write a meaningful test which is not binded to the system and unrar tool installed. How would you tackle this? public class Extractor { private EventBus eventBus; private ExtractCommand[] linuxExtractCommands = new ExtractCommand[]{new LinuxUnrarCommand()}; private ExtractCommand[] windowsExtractCommands = new ExtractCommand[]{}; private ExtractCommand[] macExtractCommands = new ExtractCommand[]{}; @Inject public Extractor(EventBus eventBus) { this.eventBus = eventBus; } public boolean extract(DownloadCandidate downloadCandidate) { for (ExtractCommand command : getSystemSpecificExtractCommands()) { if (command.extract(downloadCandidate)) { eventBus.fireEvent(this, new ExtractCompletedEvent()); return true; } } eventBus.fireEvent(this, new ExtractFailedEvent()); return false; } private ExtractCommand[] getSystemSpecificExtractCommands() { String os = System.getProperty("os.name"); if (Pattern.compile("linux", Pattern.CASE_INSENSITIVE).matcher(os).find()) { return linuxExtractCommands; } else if (Pattern.compile("windows", Pattern.CASE_INSENSITIVE).matcher(os).find()) { return windowsExtractCommands; } else if (Pattern.compile("mac os x", Pattern.CASE_INSENSITIVE).matcher(os).find()) { return macExtractCommands; } return null; } }

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  • Dependency Injection: How to maintain multiple configurations?

    - by Malax
    Hi StackOverflow, Lets assume we've build a system with a DI framework which is working quite fine. This system currently uses JMS to "talk" with other systems not maintained by us. The majority of our customers like the JMS approach and uses it according to our specification. The component which does all the messaging is injected with Spring into the rest of the application. Now we got the case that one customer cannot implement the JMS solution and want to use another messaging technology. Thats not a problem because we can simply implement a messaging service using this technology and inject it in the rest of the application. But how are we supposed to handle the deployment and maintenance of the configuration? Since the application uses Spring i could imagine to check in all the configurations i have for this application and the system administrator could start the application and passing the name of the DI XML file to specify which configuration should be loaded. But... it just don't feel right. Are there any solutions for such cases available? What are the best-practices you use? I could even imagine more complex scenarios which do not contain only one service substitution... Thanks a lot!

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  • Problem with CommandFinder class...

    - by Patrick
    and I'm not sure why... Hello Everbody! I'm trying to make my first steps with SWTBot. I'm trying to test an Eclipse RCP Application. In one test i'm trying to call a command to save a dirty editor. But an assertion after the call, tells me that the editor is still dirty. An the data in the dirty editor is not showing up in the database. On the other hand, i'm not getting an Exception when calling the command... new CommandFinder().findCommand(CoreMatchers.equalTo(COMMANDNAME_SAVE)).get(0).click(); Has anyone any insperation for me, where i made a mistake?

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  • Issue while access contacts of android

    - by Rishabh
    I am new for android development. I am trying read and write contacts to android addressbook. I tried following line of code for write name into android public class SecondApp extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ContentValues values = new ContentValues(); values.put(Contacts.People.NAME, "Rishabh"); ContentResolver cr = getContentResolver(); Uri uri = cr.insert(People.CONTENT_URI, values); but i am getting "The application has stopped unexpectedly. Please try again" message. what is wrong in it ? How can i access contacts of android ?

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  • Android - Correspondence between ImageView coordinates and Bitmap Pixels

    - by Matteo
    In my application I want the user to be able to select some content of an Image contained inside an ImageView. To select the content I subclassed the ImageView class making it implement the OnTouchListener so to draw over it a rectangle with borders decided by the user. Here is an example of the result of the drawing (to have an idea you can think of it as when you click with the mouse on your desktop and drag the mouse): Now I need to determine which pixels of the Bitmap image correspond to the selected part. It's kind of easy to determine which are the points of the ImageView belonging to the rectangle, but I don't know how to get the correspondent pixels, since the ImageView has a different aspect ratio than the original image. I followed the approach described especially here, but also here, but am not fully satisfied because in my opinion the correspondence made is 1 on 1 between pixels and points on the ImageView and does not give me all the correspondent pixels on the original image to the selected area. Calling hoveredRect the rectangle on the ImageView the points inside of it are: class Point { float x, y; @Override public String toString() { return x + ", " + y; } } Vector<Point> pointsInRect = new Vector<Point>(); for( int x = hoveredRect.left; x <= hoveredRect.right; x++ ){ for( int y = hoveredRect.top; y <= hoveredRect.bottom; y++ ){ Point pointInRect = new Point(); pointInRect.x = x; pointInRect.y = y; pointsInRect.add(pointInRect); } } How can I obtain a Vector<Pixels> pixelsInImage containing the correspondent pixels?

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  • Super class variables not printing through sub class

    - by Abhishek Singh
    Can u tell me why this code is not displaying any result on the console. class employee { protected String name; protected double salary; protected String dob; public employee(String name, double salary, String dob) { this.name = name; this.salary = salary; this.dob = dob; } public employee(String name, double salary) { this.name = name; this.salary = salary; } } public class Manage extends employee { String dept1; public Manage(String name, double salary, String dob, String dept1) { super(name, salary, dob); this.dept1 = dept1; } public Manage(String name, double salary, String dept1) { super(name, salary); this.dept1 = dept1; } public static void main(String args[]) { employee e = new employee("Vikas", 122345); employee e2 = new employee("Vikas", 122345, "12-2-1991"); Manage m = (Manage) new Manage("Vikas", 122345, "Sales"); Manage m2 = new Manage("Vikas", 122345, "12-2-1991", "sales"); m.display(); m2.display(); } public void display() { System.out.println("Name " + name); System.out.println("Salary " + salary); System.out.println("Birth " + dob); System.out.println("Department " + dept1); } }

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  • jsFunction pass data to backingbean

    - by deilig
    I have a javascript that is calling a function addData(param1,param2,param3,param4) which is calling addClip at the end And I need to pass those to a backing bean. <a4j:form> <a4j:jsFunction name="addClip" action="#{backingBean.goGo}"> <a4j:actionparam name="param1" assignTo="#{backingBean.param1}"/> </a4j:jsFunction> </a4j:form> But I can't seem to pass any values to the backingbean. I've even tried setting a static value for the actionparam. But when I try to do a Systemout on the setParam1 method it only prints out null. Have I missed anything important?

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  • Get two Jpanel expand in a JFrame asymmetrically.

    - by Gabriel A. Zorrilla
    Hi there. I have a JFrame with two JPanels inside. One is set on west, other on east with BorderLayout. The thing is, it just shows two 10 pixel width, 100% JFrame height strips: What i want to do is to setsize each panel having as end result that the jpanel on the west be 80% of the jframe width, the remaining 20% to the one on the east. Is it possible? Should I use another layout? Thanks a lot.

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  • how to set SqlMapClient outside of spring xmls

    - by Omnipresent
    I have the following in my xml configurations. I would like to convert these to my code because I am doing some unit/integration testing outside of the container. xmls: <bean id="MyMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean"> <property name="configLocation" value="classpath:sql-map-config-oracle.xml"/> <property name="dataSource" ref="IbatisDataSourceOracle"/> </bean> <bean id="IbatisDataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="jdbc/my/mydb"/> </bean> code I used to fetch stuff from above xmls: this.setSqlMapClient((SqlMapClient)ApplicationInitializer.getApplicationContext().getBean("MyMapClient")); my code (for unit testing purposes): SqlMapClientFactoryBean bean = new SqlMapClientFactoryBean(); UrlResource urlrc = new UrlResource("file:/data/config.xml"); bean.setConfigLocation(urlrc); DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName("oracle.jdbc.OracleDriver"); dataSource.setUrl("jdbc:oracle:thin:@123.210.85.56:1522:ORCL"); dataSource.setUsername("dbo_mine"); dataSource.setPassword("dbo_mypwd"); bean.setDataSource(dataSource); SqlMapClient sql = (SqlMapClient) bean; //code fails here when the xml's are used then SqlMapClient is the class that sets up then how come I cant convert SqlMapClientFactoryBean to SqlMapClient

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  • Getting custom attribute from an Exception thrown during testing

    - by Amit Bhargava
    I'm using JUnit4 to test my code. Now, I'm aware that the following annotation allows me to expect an exception of a certain type @Test(expected = NipException.class) However, I have an 'errorCode' property in my exception class which I would also like to verify. This is because the same exception is thrown at three places in the same method with different error codes. How do I access 'errorCode' of the thrown exception?

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  • presentation layer to go with apache torque

    - by ed1t
    I'm planning on using Apache torque as my object-relational mapper (ORM), and I was wondering if anybody has any suggestions around what framework to use for presentation layer with torque. maybe Spring? I don't know if this helps, but my application is basically going to be bunch of forms to input data and based on that data, I'll generate reports in form of a graph or chart.

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  • eclipse add unimplemented methods including javadoc

    - by dcp
    When implementing an interface in eclipse, it has a really nice feature that lets you "add unimplemented methods", and it will generate the method stubs for the interface methods. However, it does not bring along the method documentation from the interface methods, and I was wondering if there was a way to get eclipse to do that.

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  • JSP request parameter is returning null on a jsp include with Weblogic.

    - by doug
    Hello, I am having trouble with the jsp:include tag. I have code like the following: <jsp:include page="./Address.jsp"> <jsp:param value="30" name="tabIndex"/> <jsp:param value="true" name="showBox"/> <jsp:param value="none" name="display"/> </jsp:include> The page is included fine, but when I try to access the parameters on the Address.jsp page, they are null. I have tried accessing them the following ways (with jstl): <c:out value="${param.tabIndex}" /> <c:out value="${param['tabIndex']} /> <%= request.getParameter("tabIndex") %> <c:out value="${pageScope.param.tabIndex} /> ${param.tabIndex} etc... Here is the kicker, The above works fine in tomcat 5.5. However, when I deploy the application in Weblogic 10, it does not. Also, the code works fine in other areas of my application (on weblogic) just not a particular page. Any Ideas? Thanks!

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  • What happens to my PriorityQueue if my Comparator throws an exception while it's busy bubbling up or

    - by nieldw
    Hi, I'm trying order pairs of integers ascendantly where a pair is considered less than another pair if both its entries are strictly less than those of the other pair, and larger than the other pair if both its entries are strictly larger than those of the other pair. All other cases are considered incomparable. They way I want to solve this is by defining a Comparator that implements the above, but will throw an exception for incomparable cases, and provide that to a PriorityQueue. Of course, while inserting a pair the priority queue does several comparisons while bubbling the new entry up to its correct position in the heap, and many of these will be comparable. But it may happen during the bubbling process that a pair is encountered with which this new pair is incomparable, and an exception will be thrown. If this happens, what will be the state of the PriorityQueue? Will the pair I was trying to insert sit in the heap at the last position it was in before the exception was thrown? If I use the PriorityQueue's remove(Object o) method, will the PriorityQueue be restored to a consistent state? Thanks

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  • Finding key Solr performance metrics

    - by Mike Malloy
    To improve performance of Solr find your slowest searches, monitor query results, cache hit rate and cache size, document cache and filter cache; find problems with Solr update handlers by tracking index operations and document operations. There is a tool from New Relic which may help. http://www.newrelic.com/solr.html

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  • how to programmatically register an already setup bean to spring context

    - by lisak
    Hey, I'm wondering how one can do that. Afaik there is BeanFactoryPostProcessor interface that let us use BeanDefinitionRegistry.registerBeanDefinition() method before beans within context are initialized. That method accepts only a class / definition. But usually one needs to register a bean that is already set with properties. Otherwise the bean definition registration itself is kinda useless. I don't want to set it up additionally after I get it from context then. When using singleton it's ok, but for prototypes I'd have to set the bean up for each getBean() .

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  • PulpCore OGG music playback - can't loop as soon as I animate the musicVolume property

    - by Peter Perhác
    I have been experimenting with PulpCore for about a week or so and I am enjoying it very much but today I ran into a problem that I can't quite figure out. Sound bgMusic = Sound.load("music/music.ogg"); Playback musicPlayback; ... musicVolume = new Fixed(0.75); musicPlayback = bgMusic.loop(musicVolume); //TODO figure out why it's NOT looping when volume is animated // musicVolume.animate(0, musicVolume.get(), FADE_IN_TIME); This code, for as long as the last line is commented out, plays the music.ogg again and again in an endless loop (which I can stop by calling stop on the Playback object returned from loop(). However, I would like the music to fade in smoothly, so following the advice of the PulpCore API docs, I added the last line which will create the fade-in but the music will only play once and then stop. I wonder why is that? Here is a bit of the documentation: Playback pulpcore.sound.Sound.loop(Fixed level) Loops this sound clip with the specified volume level (0.0 to 1.0). The level may have a property animation attached. Parameters: level Returns: a Playback object for this unique sound playback (one Sound can have many simultaneous Playback objects) or null if the sound could not be played. So what could be the problem? I repeat, with the last line, the sound fades in but doesn't loop, without it it loops but starts with the specified 0.75 volume level.

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  • Problem regarding listShuttle component in richFaces ?

    - by Hari
    I am a newbee for Richfaces components, When i am using the <rich:listShuttle> the Arraylist specified in the targetValue is now getting updated with the latest data? Kindly help MyJSF File <a4j:region> <rich:listShuttle sourceValue="#{bean.selectItems}" id="one" targetValue="#{bean.selectItemsone}" var="items" listsHeight="150" sourceListWidth="130" targetListWidth="130" sourceCaptionLabel="Intial Items" targetCaptionLabel="Selected Items" converter="Listconverter"> <rich:column> <h:outputText value="#{items.value}"></h:outputText> </rich:column> </rich:listShuttle> </a4j:region> <a4j:region> <a4j:commandButton value="Submit" action="#{bean.action}" /> </a4j:region> My Managed Bean enter code here private List<String> selectedData; private List<BeanItems> selectItems; private List<BeanItems> selectItemsone; public String action() { System.out.println(selectItems); System.out.println(selectItemsone); System.out.println("Select Item List"); Iterator<BeanItems> iterator = selectItems.iterator(); while (iterator.hasNext()) { BeanItems item = (BeanItems) iterator.next(); System.out.println(item.getValue()); } System.out.println("/nSelect Item one list "); Iterator<BeanItems> iterator2 = selectItemsone.iterator(); while (iterator2.hasNext()) { BeanItems item = (BeanItems) iterator2.next(); System.out.println(item.getValue()); } return ""; } public void setSelectedData(List<String> selectedData) { this.selectedData = selectedData; } public List<String> getSelectedData() { return selectedData; } /** * @return the selectItems */ public List<BeanItems> getSelectItems() { if (selectItems == null) { selectItems = new ArrayList<BeanItems>(); selectItems.add(new BeanItems("value4", "label4")); selectItems.add(new BeanItems("value5", "label5")); selectItems.add(new BeanItems("value6", "label6")); selectItems.add(new BeanItems("value7", "label7")); selectItems.add(new BeanItems("value8", "label8")); selectItems.add(new BeanItems("value9", "label9")); selectItems.add(new BeanItems("value10", "label10")); } return selectItems; } /** * @return the selectItemsone */ public List<BeanItems> getSelectItemsone() { if (selectItemsone == null) { selectItemsone = new ArrayList<BeanItems>(); selectItemsone.add(new BeanItems("value1", "label1")); selectItemsone.add(new BeanItems("value2", "label2")); selectItemsone.add(new BeanItems("value3", "label3")); } return selectItemsone; } My Converter Class enter code here public Object getAsObject(FacesContext context, UIComponent component,String value) { int index = value.indexOf(':'); return new BeanItems(value.substring(0, index), value.substring(index + 1)); } public String getAsString(FacesContext context, UIComponent component,Object value) { BeanItems beanItems = (BeanItems) value; return beanItems.getValue() + ":" + beanItems.getData(); } My BeanItems Class enter code here private String data; //Getter & setter private String value; //Getter & setter public BeanItems() { } public BeanItems(String value, String data) { this.value = value; this.data = data; } public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((data == null) ? 0 : data.hashCode()); result = prime * result + ((value == null) ? 0 : value.hashCode()); return result; } public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; final BeanItems other = (BeanItems) obj; if (data == null) { if (other.data != null) return false; } else if (!data.equals(other.data)) return false; if (value == null) { if (other.value != null) return false; } else if (!value.equals(other.value)) return false; return true; }

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  • Why encodeXxx methods in UIComponent accept FacesContext parameter?

    - by Roman
    I haven't ever before created custom component in jsf so I've noticed it only now that methods like encodeBegin(), encodeEnd() etc accept FacesContext parameter. FacesContext instance can usually be received with FacesContext.getCurrentInstance(). So, I wonder whether these methods have FacesContext parameter just for convenience or some different objects can be passed there (maybe from external resources..). If the latter is possible then could you give an example pls.

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