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  • What are the reasons to store documents into DBMS when using Alfresco DMS

    - by Julia
    Hello guys! I have interview for an internship with company that wants to implement document management system and they are considering on the first place open source solutions, their top choice being Alfresco, but decision is still not final, part of my work there would be to investigate is Alfresco the best solution. What I have seen from project description, is that they would implement Alfresco with MySQL database, and not to use DBMS just for document metadata and indexing, but they actually want to store documents inside. By company profile, type of documents would be mostly PDF and .doc, not images. I have researched a bit, and I have read all the topics here related to storing files into the database, not to duplicate a question. So from what I understand, storing BLOBS is generally not recomendable, and by the profile of the company and their legal obligations with archiving, I see they will have to store larger amount of docs. I would like to be ready as much as I can for the interview and that is why I would like your opinion on these questions: 1) What will be your reasons for deciding to store documents into the DBMS, (especially having in mind that you are installing Alfresco, which stores files in the FS)??? 2) Do you have any experiences with storing documents into the MySQL database specifically??? All the help is very much appreciated, I am really excited about interview and really want this internship, so this is one of things i really want to understand before!! Thank you!!!!

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  • Why does 12:20 PM parse to 0:20 on the next day?

    - by Hanno Fietz
    I'm using java.text.SimpleDateFormat to parse string representations of date/time values inside an XML document. I'm seeing all times that have an hour value of 12 shifted by 12 hours into the future, i. e. 20 minutes past noon gets parsed to mean 20 minutes past midnight the following day. I wrote a unit test which seems to confirm that the error is made upon parsing (I checked the return values from getTime() with the linux shell command date). Now I'm wondering: is there a bug in the parse() method? is there something wrong with the input string? am I using the wrong format string for the input? The input data is taken from Yahoo's YWeather service. Here's the test and its output: public class YWeatherReaderTest { public static final String[] rgDateSamples = { "Thu, 08 Apr 2010 12:20 PM CEST", "Thu, 08 Apr 2010 12:20 AM CEST" }; public void dateParsing() throws ParseException { DateFormat formatter = new SimpleDateFormat("EEE, dd MMM yyyy K:m a z", Locale.US); for (String dtsSrc : YWeatherReaderTest.rgDateSamples) { Date dt = formatter.parse(dtsSrc); String dtsDst = formatter.format(dt); System.out.println(dtsSrc); System.out.println(dtsDst); System.out.println(); } } } Thu, 08 Apr 2010 12:20 PM CEST Fri, 09 Apr 2010 0:20 AM CEST Thu, 08 Apr 2010 12:20 AM CEST Thu, 08 Apr 2010 0:20 PM CEST The second output line of the second iteration is slightly weird, because 00:20 isn't PM. The milliseconds value of the Date object, however, corresponds to the (wrong) time of 20 minutes past noon.

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  • simple Java "service provider frameworks"?

    - by Jason S
    I refer to "service provider framework" as discussed in Chapter 2 of Effective Java, which seems like exactly the right way to handle a problem I am having, where I need to instantiate one of several classes at runtime, based on a String to select which service, and an Configuration object (essentially an XML snippet): But how do I get the individual service providers (e.g. a bunch of default providers + some custom providers) to register themselves? interface FooAlgorithm { /* methods particular to this class of algorithms */ } interface FooAlgorithmProvider { public FooAlgorithm getAlgorithm(Configuration c); } class FooAlgorithmRegistry { private FooAlgorithmRegistry() {} static private final Map<String, FooAlgorithmProvider> directory = new HashMap<String, FooAlgorithmProvider>(); static public FooAlgorithmProvider getProvider(String name) { return directory.get(serviceName); } static public boolean registerProvider(String name, FooAlgorithmProvider provider) { if (directory.containsKey(name)) return false; directory.put(name, provider); return true; } } e.g. if I write custom classes MyFooAlgorithm and MyFooAlgorithmProvider to implement FooAlgorithm, and I distribute them in a jar, is there any way to get registerProvider to be called automatically, or will my client programs that use the algorithm have to explicitly call FooAlgorithmRegistry.registerProvider() for each class they want to use?

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  • T-SQL Table Joins - Unique Situation

    - by Dimitri
    Hello Everyone. This is my first time encountering the case like this and don't quite know how to handle. Situation: I have one table tblSettingsDefinition, with fields: ID, GroupID, Name, typeID, DefaultValue. Then I have tblSettingtypes with fields TypeID, Name. And I have final table, tblUserSettings with fields SettingID, SettingDefinitionID, UserID, Value. The whole point of this is to have customizable settings. Setting can be defined for a Group or as global setting (if GroupID is NULL). It will have a default value, but if user modifies the setting, an entry is added to tblUserSettings that stores new value. I want to have a query that grabs user settings by first looking at the tblUserSettings, and if it has records for the given user, grabs them, if not retrieves default settings. But the trick is that no matter if user has settings or not, I need to have fields from other two table retrieved to know the setting's Type, Name etc... (which are stored in those other tables). I'm writing query something like this: SELECT * FROM tblSettingDefinition SD LEFT JOIN tblUserSettings US ON SD.SettingID = US.SettingDefinitionID JOIN tblSettingTypes ST ON SD.TypeID=ST.ID WHERE US.UserID=@UserID OR ((SD.GroupID IS NULL) OR (SD.GroupID=(SELECT GroupID FROM tblUser WHERE ID=@UserID))) but it retrieves settings for all users from tblUserSettings instead of just ones that match current @UserID. And if @UserID has no records in tblUserSettings, still, all user settings are retrieved instead of the defaults from tblSettingDefinition. Hope I made myself clear. Any help would be highly appreciated. Thank you.

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  • How to bind data from a view of type List<List<MyViewModelClass>>?

    - by Robert Koritnik
    I have a strong type view of type List<List<MyViewModelClass>> The outer list will always have two lists of List<MyViewModelClass>. For each of the two outer lists I want to display a group of checkboxes. Each set can have an arbitrary number of choices. My view model class looks similar to this: public class MyViewModelClass { public Area Area { get; set; } public bool IsGeneric { get; set; } public string Code { get; set; } public bool IsChecked { get; set; } } So the final view will look something like: Please select those that apply: First set of choices: x Option 1 x Option 2 x Option 3 etc. Second set of choices: x Second Option 1 x Second Option 2 x Second Option 3 x Second Option 4 etc. Checkboxes should display MyViewModelClass.Area.Name, and their value should be related to MyViewModelClass.Area.Id. Checked state is of course related to MyViewModel.IsChecked. Question I wonder how should I use Html.CheckBox() or Html.CheckBoxFor() helper to display my checkboxes? I have to get these values back to the server on a postback of course. If it makes things simpler, I could make a separate view model type like: public class Options { public List<MyViewModelClass> General { get; set; } public List<MyViewModelClass> Others { get; set; } }

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  • How can I use System.Web.Caching.Cache in a Console application?

    - by Ron Klein
    Context: .Net 3.5, C# I'd like to have caching mechanism in my Console application. Instead of re-inventing the wheel, I'd like to use System.Web.Caching.Cache (and that's a final decision, I can't use other caching framework, don't ask why). However, it looks like System.Web.Caching.Cache is supposed to run only in a valid HTTP context. My very simple snippet looks like this: using System; using System.Web.Caching; using System.Web; Cache c = new Cache(); try { c.Insert("a", 123); } catch (Exception ex) { Console.WriteLine("cannot insert to cache, exception:"); Console.WriteLine(ex); } and the result is: cannot insert to cache, exception: System.NullReferenceException: Object reference not set to an instance of an object. at System.Web.Caching.Cache.Insert(String key, Object value) at MyClass.RunSnippet() So obviously, I'm doing something wrong here. Any ideas? Update: +1 to most answers, getting the cache via static methods is the correct usage, namely HttpRuntime.Cache and HttpContext.Current.Cache. Thank you all!

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  • Effective java hashcode implementation

    - by Scobal
    I was wondering if someone could explain in detail what (int)(l ^ (l >>> 32)); does in the following hashcode implementation (generated by eclipse, but the same as Effective Java): private int i; private char c; private boolean b; private short s; private long l; private double d; private float f; @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + i; result = prime * result + s; result = prime * result + (b ? 1231 : 1237); result = prime * result + c; long t = Double.doubleToLongBits(d); result = prime * result + (int) (t ^ (t >>> 32)); result = prime * result + Float.floatToIntBits(f); result = prime * result + (int) (l ^ (l >>> 32)); return result; } Thanks!

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  • What framework would allow for the largest coverage of freelance developers in the media/digital mar

    - by optician
    This question is not about which is the best, it is about which makes the most business sense to use as a company's platform of choice for ongoing freelance development. I'm currently trying to decide what framework to move my company in regarding frameworks for web application work. Options are ASP.NET MVC Django CakePHP/Symfony etc.. Struts Pearl on Rails Please feel free to add more to the discussion. I currently work in ASP.NET MVC in my Spare time, and find it incredibly enjoyable to work with. It is my first experince with an MVC framework for the web, so I can't talk on the others. The reason for not pushing this at the company is that I feel that there are not many developers in the Media/Marketing world who would work with this, so it may be hard to extend the team, or at least cost more. I would like to move into learning and pushing Django, partly to learn python, partly to feel a bit cooler (all my geeky friends use Java/Python/c++). Microsoft is the dark side to most company's I work with (Marketing/Media focused). But again I'm worried about developers in this sector. PHP seems like the natural choice, but I'm scared by the sheer amount of possible frameworks, and also that the quality of developer may be lower. I know there are great php developers out there, but how many of them know multiple frameworks? Are they similar enough that anyone decent at php can pick them up? Just put struts in the list as an option, but personally I live with a Java developer, and considering my experience with c#, I'm just not that interested in learning Java (selfish personal geeky reasons) Final option was a joke http://www.bbc.co.uk/blogs/radiolabs/2007/11/perl_on_rails.shtml

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  • SpringMvc Annotations for DAO interface and DAO implementation

    - by dev_darin
    I would like to know if I am annotating these classes correctly, since I am new to the annotations: Country.java @Component public class Country { private int countryId; private String countryName; private String countryCode; /** * No args constructor */ public Country() { } /** * @param countryId * @param countryName * @param countryCode */ public Country(int countryId, String countryName, String countryCode) { this.countryId = countryId; this.countryName = countryName; this.countryCode = countryCode; } //getters and setters } CountryDAO.java @Repository public interface CountryDAO { public List<Country> getCountryList(); public void saveCountry(Country country); public void updateCountry(Country country); } JdbcCountryDAO.java @Component public class JdbcCountryDAO extends JdbcDaoSupport implements CountryDAO{ private final Logger logger = Logger.getLogger(getClass()); @Autowired public List<Country> getCountryList() { int countryId = 6; String countryCode = "AI"; logger.debug("In getCountryList()"); String sql = "SELECT * FROM TBLCOUNTRY WHERE countryId = ? AND countryCode = ?"; logger.debug("Executing getCountryList String "+sql); Object[] parameters = new Object[] {countryId, countryCode}; logger.info(sql); //List<Country> countryList = getJdbcTemplate().query(sql,new CountryMapper()); List<Country> countryList = getJdbcTemplate().query(sql, parameters,new CountryMapper()); return countryList; } CountryManagerIFace.java @Repository public interface CountryManagerIFace extends Serializable{ public void saveCountry(Country country); public List<Country> getCountries(); } CountryManager.java @Component public class CountryManager implements CountryManagerIFace{ @Autowired private CountryDAO countryDao; public void saveCountry(Country country) { countryDao.saveCountry(country); } public List<Country> getCountries() { return countryDao.getCountryList(); } public void setCountryDao(CountryDAO countryDao){ this.countryDao = countryDao; } }

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  • Efficient way of calculating average difference of array elements from array average value

    - by Saysmaster
    Is there a way to calculate the average distance of array elements from array average value, by only "visiting" each array element once? (I search for an algorithm) Example: Array : [ 1 , 5 , 4 , 9 , 6 ] Average : ( 1 + 5 + 4 + 9 + 6 ) / 5 = 5 Distance Array : [|1-5|, |5-5|, |4-5|, |9-5|, |6-5|] = [4 , 0 , 1 , 4 , 1 ] Average Distance : ( 4 + 0 + 1 + 4 + 1 ) / 5 = 2 The simple algorithm needs 2 passes. 1st pass) Reads and accumulates values, then divides the result by array length to calculate average value of array elements. 2nd pass) Reads values, accumulates each one's distance from the previously calculated average value, and then divides the result by array length to find the average distance of the elements from the average value of the array. The two passes are identical. It is the classic algorithm of calculating the average of a set of values. The first one takes as input the elements of the array, the second one the distances of each element from the array's average value. Calculating the average can be modified to not accumulate the values, but caclulating the average "on the fly" as we sequentialy read the elements from the array. The formula is: Compute Running Average of Array's elements ------------------------------------------- RA[i] = E[i] {for i == 1} RA[i] = RA[i-1] - RA[i-1]/i + A[i]/i { for i > 1 } Where A[x] is the array's element at position x, RA[x] is the average of the array's elements between position 1 and x (running average). My question is: Is there a similar algorithm, to calculate "on the fly" (as we read the array's elements), the average distance of the elements from the array's mean value? The problem is that, as we read the array's elements, the final average value of the array is not known. Only the running average is known. So calculating differences from the running average will not yield the correct result. I suppose, if such algorithm exists, it probably should have the "ability" to compensate, in a way, on each new element read for the error calculated as far.

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  • Data Mappers, Models and Images

    - by James
    Hi, I've seen and read plenty of blog posts and forum topics talking about and giving examples of Data Mapper / Model implementations in PHP, but I've not seen any that also deal with saving files/images. I'm currently working on a Zend Framework based project and I'm doing some image manipulation in the model (which is being passed a file path), and then I'm leaving it to the mapper to save that file to the appropriate location - is this common practise? But then, how do you deal with creating say 3 different size images from the one passed in? At the moment I have a "setImage($path_to_tmp_name)" which checks the image type, resizes and then saves back to the original filename. A call to "getImagePath()" then returns the current file path which the data mapper can use and then change with a call to "setImagePath($path)" once it's saved it to the appropriate location, say "/content/my_images". Does this sound practical to you? Also, how would you deal with getting the URL to that image? Do you see that as being something that the model should be providing? It seems to me like that model should worry about where the images are being stored or ultimately how they're accessed through a browser and so I'm inclined to put that in the ini file and just pass the URL prefix to the view through the controller. Does that sound reasonable? I'm using GD for image manipulation - not that that's of any relevance. UPDATE: I've been wondering if the image resizing should be done in the model at all. The model could require that it's provided a "main" image and a "thumb" image, both of certain dimensions. I've thought about creating a "getImageSpecs()" function in the model that would return something that defines the required sizes, then a separate image manipulation class could carry out the resizing and (perhaps in the controller?) and just pass the final paths in to the model using something like "setImagePaths($images)". Any thoughts much appreciated :) James.

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  • Is ASP.NET MVC is really MVC? Or how to separate model from controller?

    - by Andrey
    Hi all, This question is a bit rhetorical. At some point i got a feeling that ASP.NET MVC is not that authentic implementation of MVC pattern. Or i didn't understood it. Consider following domain: electric bulb, switch and motion detector. They are connected together and when you enter the room motion detector switches on the bulb. If i want to represent them as MVC: switch is model, because it holds the state and contains logic bulb is view, because it presents the state of model to human motion detector is controller, because it converts user actions to generic model commands Switch has one private field (On/Off) as a State and two methods (PressOn, PressOff). If you call PressOn when it is Off it goes to On, if you call it again state doesn't change. Bulb can be replaced with buzzer, motion detector with timer or button, but the model still represent the same logic. Eventually system will have same behavior. This is how i understand classical MVC decomposition, please correct me if i am wrong. Now let's decompose it in ASP.Net MVC way. Bulb is still a view Controller will be switch + motion detector Model is some object that will just pass state to bulb. So the logic that defines behavior moves to controller. Question 1: Is my understanding of MVC and ASP.NET MVC correct? Question 2: If yes, do you agree that ASP.NET MVC is not 100% accurate implementation? And back to life. The final question is how to separate model from controller in case of ASP.NET MVC. There can be two extremes. Controller does basic stuff and call model to do all the logic. Another is controller does all the logic and model is just something like class with properties that is mapped to DB. Question 3: Where should i draw the line between this extremes? How to balance? Thanks, Andrey

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  • Google App Engine - Caching generated HTML

    - by Alexander
    I have written a Google App Engine application that programatically generates a bunch of HTML code that is really the same output for each user who logs into my system, and I know that this is going to be in-efficient when the code goes into production. So, I am trying to figure out the best way to cache the generated pages. The most probable option is to generate the pages and write them into the database, and then check the time of the database put operation for a given page against the time that the code was last updated. Then, if the code is newer than the last put to the database (for a particular HTML request), new HTML will be generated and served, and cached to the database. If the code is older than the last put to the database, then I will just get the HTML direct from the database and serve it (therefore avoiding all the CPU wastage of generating the HTML). I am not only looking to minimize load times, but to minimize CPU usage. However, one issue that I am having is that I can't figure out how to programatically check when the version of code uploaded to the app engine was updated. I am open to any suggestions on this approach, or other approaches for caching generated html. Note that while memcache could help in this situation, I believe that it is not the final solution since I really only need to re-generate html when the code is updated (as opposed to every time the memcache expires). Kind Regards, and thank you in advance for any suggestions you may be able to offer. -Alex

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  • storing data at remote server using php

    - by VIPUL GOYAL
    I want to send data to php file and execute insert query in it to store data in database. When i execute this code, it executes but database does not get updated. Code of PHP file Java code------------------------------Remote.java------------------------------ public class Remote extends Activity { EditText name; Button s; String r; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); name= (EditText)findViewById(R.id.editText1); s=(Button)findViewById(R.id.button1); s.setOnClickListener(new OnClickListener() { public void onClick(View v) { try { r = name.getText().toString(); ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>(); postParameters.add(new BasicNameValuePair("username", r)); CustomHttpClient.executeHttpPost("http://vipul.eu5.org/abc.php", postParameters); //Enetr Your remote PHP,ASP, Servlet file link } catch (Exception e) { e.printStackTrace(); } } }); } } -----------------------------CustomHttpClient.java---------------------------- public class CustomHttpClient { private static HttpClient getHttpClient() { if (mHttpClient == null) { mHttpClient = new DefaultHttpClient(); final HttpParams params = mHttpClient.getParams(); HttpConnectionParams.setConnectionTimeout(params, HTTP_TIMEOUT); HttpConnectionParams.setSoTimeout(params, HTTP_TIMEOUT); ConnManagerParams.setTimeout(params, HTTP_TIMEOUT); } return mHttpClient; } /** * Performs an HTTP Post request to the specified url with the * specified parameters. * * @param url The web address to post the request to * @param postParameters The parameters to send via the request * @return The result of the request * @throws Exception */ public static void executeHttpPost(String url, ArrayList postParameters) throws Exception { try { HttpClient client = getHttpClient(); HttpPost request = new HttpPost(url); UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters); request.setEntity(formEntity); HttpResponse response = client.execute(request); } catch(Exception e) { } } }

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  • Is it possible to alternate between two types in an XML Schema

    - by lief79
    I'm wondering if I am missing something obvious. I have a list of numbers, possibly including ranges (think of the print page option of a print dialog). Ideally I'd like to have the final XML output look like this, with page and pageRange in an order. <pages> <page> 1</page> <pageRange><start>3</start><end>6</end></pageRange> <page> 34</page> </pages> What would I have to put into a schema to allow this? From what I saw: Sequence with multiple page and page Range allowed doesn't permit alternation. Choice only allows one or the other. I tried messing with all, but I wasn't getting it to validate properly. My short term solution is to have a sequence of ranges, and to force single numbers into the range, but it seems potentially cumbersome. So am I missing something?

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  • ADO/SQL Server: What is the error code for "timeout expired"?

    - by Ian Boyd
    i'm trying to trap a "timeout expired" error from ADO. When a timeout happens, ADO returns: Number: 0x80040E31 (DB_E_ABORTLIMITREACHED in oledberr.h) SQLState: HYT00 NativeError: 0 The NativeError of zero makes sense, since the timeout is not a function of the database engine (i.e. SQL Server), but of ADO's internal timeout mechanism. The Number (i.e. the COM hresult) looks useful, but the definition of DB_E_ABORTLIMITREACHED in oledberr.h says: Execution stopped because a resource limit was reached. No results were returned. This error could apply to things besides "timeout expired" (some potentially server-side), such as a governor that limits: CPU usage I/O reads/writes network bandwidth and stops a query. The final useful piece is SQLState, which is a database-independent error code system. Unfortunately the only reference for SQLState error codes i can find have no mention of HYT00. What to do? What do do? Note: i can't trust 0x80040E31 (DB_E_ABORTLIMITREACHED) to mean "timeout expired", anymore than i could trust 0x80004005 (E_UNSPECIFIED_ERROR) to mean "Transaction was deadlocked on lock resources with another process and has been chosen as the deadlock victim". My pseudo-question becomes: does anyone have documentation on what the SQLState "HYT000" means? And my real question still remains: How can i specifically trap an ADO timeout expired exception thrown by ADO? Gotta love the questions where the developer is trying to "do the right thing", but nobody knows how to do the right thing. Also gotta love how googling for DB_E_ABORTLIMITREACHED and this question is #9, with MSDN nowhere to be found. Update 3 From the OLEdb ICommand.Execute reference: DB_E_ABORTLIMITREACHED Execution has been aborted because a resource limit has been reached. For example, a query timed out. No results have been returned. "For example", meaning not an exhaustive list.

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  • algorithm || method to write prog

    - by fatai
    I am one of the computer science student. My wonder is everyone solve problem with different or same method, but actually I dont know whether they use method or I dont know whether there are such common method to approach problem. All teacher give us problem which in simple form sometimes, but they dont introduce any approach or method(s) so that we can first choose method then apply that one to problem , afterward find solution then write code. I have found one method when I failed the course, More accurately, When I counter problem in language , I will get more paper and then ; first, input/ output step ; my prog will take this / these there argument(s) and return namely X , ex : in c, input length is not known and at same type , so I must use pointer desired output is in form of package , so use structure second, execution part ; in that step , I am writing all step which are goes to final output ex : in python ; 1.) [ + , [- , 4 , [ * , 1 , 2 ]], 5] 2.) [ + , [- , 4 , 2 ],5 ] 3.) [ + , 2 , 5] 4.) 7 ==> return 7 third, I will write test code ex : in c++ input : append 3 4 5 6 vector_x remove 0 1 desired output vector_x holds : 5 6 But now, I wonder other method ; used to construct class :::: for c++ , python, java used to communicate classes / computers used for solving embedded system problem ::::: for c Why I wonder , because I learn if you dont costruct algorithm on paper, you may achieve your goal. Like no money no lunch , I can say no algorithm no prog therefore , feel free when you write your own method , a way which is introduced by someone else but you are using and you find it is so efficient

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  • Dataflow Pipeline holding on to memory

    - by Jesse Carter
    I've created a Dataflow pipeline consisting of 4 blocks (which includes one optional block) which is responsible for receiving a query object from my application across HTTP and retrieving information from a database, doing an optional transform on that data, and then writing the information back in the HTTP response. In some testing I've done I've been pulling down a significant amount of data from the database (570 thousand rows) which are stored in a List object and passed between the different blocks and it seems like even after the final block has been completed the memory isn't being released. Ram usage in Task Manager will spike up to over 2 GB and I can observe several large spikes as the List hits each block. The signatures for my blocks look like this: private TransformBlock<HttpListenerContext, Tuple<HttpListenerContext, QueryObject>> m_ParseHttpRequest; private TransformBlock<Tuple<HttpListenerContext, QueryObject>, Tuple<HttpListenerContext, QueryObject, List<string>>> m_RetrieveDatabaseResults; private TransformBlock<Tuple<HttpListenerContext, QueryObject, List<string>>, Tuple<HttpListenerContext, QueryObject, List<string>>> m_ConvertResults; private ActionBlock<Tuple<HttpListenerContext, QueryObject, List<string>>> m_ReturnHttpResponse; They are linked as follows: m_ParseHttpRequest.LinkTo(m_RetrieveDatabaseResults); m_RetrieveDatabaseResults.LinkTo(m_ConvertResults, tuple => tuple.Item2 is QueryObjectA); m_RetrieveDatabaseResults.LinkTo(m_ReturnHttpResponse, tuple => tuple.Item2 is QueryObjectB); m_ConvertResults.LinkTo(m_ReturnHttpResponse); Is it possible that I can set up the pipeline such that once each block is done with the list they no longer need to hold on to it as well as once the entire pipeline is completed that the memory is released?

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  • Displaying music list using custom lists instead of array adapters

    - by Rahul Varma
    Hi, I have displayed the music list in a list view. The list is obtained from a website. I have done this using Arraylist. Now, i want to iterate the same program using custom lists and custom adapters instead of array list. The code i have written using array lists is... public class MusicListActivity extends Activity { MediaPlayer mp; File mediaFile; TextView tv; TextView albumtext; TextView artisttext; ArrayList<String> al=new ArrayList<String>(); //ArrayList<String> al=new ArrayList<String>(); ArrayList<String> node=new ArrayList<String>(); ArrayList<String> filepath=new ArrayList<String>(); ArrayList<String> imgal=new ArrayList<String>(); ArrayList<String> album=new ArrayList<String>(); ArrayList<String> artist=new ArrayList<String>(); ListView lv; Object[] webImgListObject; String[] stringArray; XMLRPCClient client; String loginsess; HashMap<?, ?> siteConn = null; //ImageView im; Bitmap img; String s; int d; int j; StreamingMediaPlayer sm; int start=0; Intent i; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.openadiuofile); lv=(ListView)findViewById(R.id.list1); al=getIntent().getStringArrayListExtra("titles"); //node=getIntent().getStringArrayListExtra("nodeid"); filepath=getIntent().getStringArrayListExtra("apath"); imgal=getIntent().getStringArrayListExtra("imgpath"); album=getIntent().getStringArrayListExtra("album"); artist=getIntent().getStringArrayListExtra("artist"); // ArrayAdapter<String> aa=new ArrayAdapter<String>(this,R.layout.row,R.id.text2,al); //lv.setAdapter(aa); try{ lv.setAdapter( new styleadapter(this,R.layout.row, R.id.text2,al)); }catch(Throwable e) { Log.e("openaudio error",""+e.toString()); goBlooey(e); } lv.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3){ j=1; try{ d=arg2; String filep=filepath.get(d); String tit=al.get(d); String image=imgal.get(d); String singer=artist.get(d); String movie=album.get(d); sendpath(filep,tit,image,singer,movie); // getpath(n); }catch(Throwable t) { goBlooey(t); } } }); } @Override protected void onPause() { // TODO Auto-generated method stub super.onPause(); if(j==0) {i=new Intent(this,gorinkadashboard.class); startActivity(i);} } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); j=0; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode==KeyEvent.KEYCODE_SEARCH) { Log.i("go","go"); return true; } return(super.onKeyDown(keyCode, event)); } public void sendpath(String n,String nn,String image,String singer,String movie) { Intent ii=new Intent(this,MusicPlayerActivity.class); ii.putExtra("path",n); ii.putExtra("titletxt",nn); //ii.putStringArrayListExtra("playpath",filepath); ii.putExtra("pos",d); ii.putExtra("image",image); ii.putStringArrayListExtra("imagepath",imgal); ii.putStringArrayListExtra("filepath", filepath); ii.putStringArrayListExtra("imgal", imgal); ii.putExtra("movie" ,movie ); ii.putExtra("singer",singer); ii.putStringArrayListExtra("album", album); ii.putStringArrayListExtra("artist",artist); ii.putStringArrayListExtra("tittlearray",al); startActivity(ii); } class styleadapter extends ArrayAdapter<String> { Context context=null; public styleadapter(Context context, int resource, int textViewResourceId, List<String> objects) { super(context, resource, textViewResourceId, objects); this.context=context; } @Override public View getView(int position, View convertView, ViewGroup parent) { final int i=position; LayoutInflater inflater = ((Activity) context).getLayoutInflater(); View v = inflater.inflate(R.layout.row, null); tv=(TextView)v.findViewById(R.id.text2); albumtext=(TextView)v.findViewById(R.id.text3); artisttext=(TextView)v.findViewById(R.id.text1); tv.setText(al.get(i)); albumtext.setText(album.get(i)); artisttext.setText(artist.get(i)); final ImageView im=(ImageView)v.findViewById(R.id.image); s="http://www.gorinka.com/"+imgal.get(i); // displyimg(s,v); // new imageloader(s,im); String imgPath=s; AsyncImageLoaderv asyncImageLoaderv=new AsyncImageLoaderv(); Bitmap cachedImage = asyncImageLoaderv.loadDrawable(imgPath, new AsyncImageLoaderv.ImageCallback() { public void imageLoaded(Bitmap imageDrawable, String imageUrl) { im.setImageBitmap(imageDrawable); } }); im.setImageBitmap(cachedImage); return v; } } public class imageloader implements Runnable{ private String ss; //private View v; //private View v2; private ImageView im; public imageloader(String s, ImageView im) { this.ss=s; //this.v2=v2; this.im=im; Thread thread = new Thread(this); thread.start(); } public void run(){ try { // URL url = new URL(ss); // URLConnection conn = url.openConnection(); // conn.connect(); HttpGet httpRequest = null; httpRequest = new HttpGet(ss); HttpClient httpclient = new DefaultHttpClient(); HttpResponse response = (HttpResponse) httpclient.execute(httpRequest); HttpEntity entity = response.getEntity(); BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity); InputStream is = bufHttpEntity.getContent(); // BufferedInputStream bis = new BufferedInputStream(is); Bitmap bm = BitmapFactory.decodeStream(is); Log.d("img","img"); // bis.close(); is.close(); im.setImageBitmap(bm); // im.forceLayout(); // v2.postInvalidate(); // v2.requestLayout(); } catch (Exception t) { Log.e("bitmap url", "Exception in updateStatus()", t); //goBlooey(t); // throw new RuntimeException(t); } } } private void goBlooey(Throwable t) { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder .setTitle("Exception!") .setMessage(t.toString()) .setPositiveButton("OK", null) .show(); } } I have created the SongList.java, SongsAdapter.java and also SongsAdapterView.java. Their code is... public class SongsList { private String titleName; private String movieName; private String singerName; private String imagePath; private String mediaPath; // Constructor for the SongsList class public SongsList(String titleName, String movieName, String singerName,String imagePath,String mediaPath ) { super(); this.titleName = titleName; this.movieName = movieName; this.singerName = singerName; this.imagePath = imagePath; this.mediaPath = mediaPath; } public String gettitleName() { return titleName; } public void settitleName(String titleName) { this.titleName = titleName; } public String getmovieName() { return movieName; } public void setmovieName(String movieName) { this.movieName = movieName; } public String getsingerName() { return singerName; } public void setsingerName(String singerName) { this.singerName = singerName; } public String getimagePath() { return imagePath; } public void setimagePath(String imagePath) { this.imagePath = imagePath; } public String getmediaPath() { return mediaPath; } public void setmediaPath(String mediaPath) { this.mediaPath = mediaPath; } } public class SongsAdapter extends BaseAdapter{ private Context context; private List<SongsList> listSongs; public SongsAdapter(Context context, List<SongsList> listPhonebook){ this.context = context; this.listSongs = listSongs; } public int getCount() { return listSongs.size(); } public Object getItem(int position) { return listSongs.get(position); } public long getItemId(int position) { return position; } public View getView(int position, View view, ViewGroup viewGroup) { SongsList entry = listSongs.get(position); return new SongsAdapterView(context,entry); } } public SongsAdapterView(Context context, SongsList entry) { super(context); this.setOrientation(VERTICAL); this.setTag(entry); // TODO Auto-generated constructor stub View v = inflate(context, R.layout.row, null); TextView tvTitle = (TextView)v.findViewById(R.id.text2); tvTitle.setText(entry.gettitleName()); TextView tvMovie = (TextView)v.findViewById(R.id.text3); tvTitle.setText(entry.getmovieName()); TextView tvSinger = (TextView)v.findViewById(R.id.text1); tvTitle.setText(entry.getsingerName()); addView(v); } } Can anyone please tell me how to display the list using custom lists and custom adapters using the code above???

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  • Flex 3 - Saving an image of a component

    - by Emma
    Im currently trying to work the imageSnapshot function in flex. Ive been looking hard but I cant seem to find a solution to my problem. I wish to take a screenshot of one of my components, to capture the final output of my program, since a plain "printscreen" cuts off some of the output due to it scrolling. My current code looks like - <mx:ApplicationControlBar dock="true"> <mx:Button label="Take snapshot of Profile" click="takeSnapshot();" /> </mx:ApplicationControlBar> Which when called does - private function takeSnapshot(even:Event=null):void { var imageSnap:ImageSnapshot = ImageSnapshot.captureImage(viewstack1); Now i think this is taking the image of the viewstack which I want... But Im stumped on what to do from here! Is it not possible to now just copy the image to the clipboard, or produce a new window in my browser with the entire image inside? If anyone has any other way to do this, suggestions would be wonderful. Thank you for your time.

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  • Merging datasets based on 2 variables in SAS.

    - by John
    Hye Guys, my question is the following, i'm working with different databases, all contain information about 1000+ companies, a company is defined by its ticker code (the short version of the name( Ford as F) usually seen on stock quotation boards). Aside from the ticker code to merge on I also have to merge on the time, I used month as a count variable throughout my time series. The final purpose is to have a regression in the kind of Y(jt) = c + X(jt) +X1(jt) etc with j = company (ticker) and t = time (month). So imagine I have 2 databases, one which is the base database with variables such as Tickers, months, beta's of a company (risk measure) etc and a second database which has an extra variable (let's say market capitalisation). What I want to do then is to merge these 2 databases based on the ticker and the month. Example: Base database: Ticker __ Month __ Betas AA __ 4 __ 1.2 BB __ 8 __ 1.18 Second database: Ticker __ Month __ MCAP AA __ 4 __ 8542 BB __ 6 __ 1245 Then after merge I would like to have something like this: Ticker __ Month _ Betas ___ MCAP AA __ 4 _ 1.2 ___ 8542 So all observations that do not match BOTH date and ticker have to be dropped, I'm sure this is possible, just can't find the right type of code. Thanks! PS: I'm guessing the underscars have something to do with font layout but both the bold as italic is supposed to be normal :)

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  • ADO.NET zombie transaction bug? How to ensure that commands will not be executed on implicit transac

    - by TN
    e.g. When deadlock occurs, following SQL commands are successfully executed, even if they have assigned SQL transaction that is after rollback. It seems, it is caused by a new implicit transaction that is created on SQL Server. Someone could expect that ADO.NET would throw an exception that the commands are being executed on a zombie transaction. However, such exception is not thrown. (I think this is a bug in ASP.NET.) Moreover, because of zombie transaction the final Dispose() silently ignores the rollback. Any ideas, how can I ensure that nobody can execute commands on implicit transaction? Or, how to check that transaction is zombie? I found that Commit() and Rollback() check for zombie transaction, however I can call them for a test:) I also found that also reading IsolationLevel will do the check, but I am not sure whether simple calling transaction.IsolationLevel.ToString(); will not be removed by a future optimizer. Or do you know any other safe way invoke a getter (without using reflection or IL emitting)?

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  • Parsing basic math equations for children's educational software?

    - by Simucal
    Inspired by a recent TED talk, I want to write a small piece of educational software. The researcher created little miniature computers in the shape of blocks called "Siftables". [David Merril, inventor - with Siftables in the background.] There were many applications he used the blocks in but my favorite was when each block was a number or basic operation symbol. You could then re-arrange the blocks of numbers or operation symbols in a line, and it would display an answer on another siftable block. So, I've decided I wanted to implemented a software version of "Math Siftables" on a limited scale as my final project for a CS course I'm taking. What is the generally accepted way for parsing and interpreting a string of math expressions, and if they are valid, perform the operation? Is this a case where I should implement a full parser/lexer? I would imagine interpreting basic math expressions would be a semi-common problem in computer science so I'm looking for the right way to approach this. For example, if my Math Siftable blocks where arranged like: [1] [+] [2] This would be a valid sequence and I would perform the necessary operation to arrive at "3". However, if the child were to drag several operation blocks together such as: [2] [\] [\] [5] It would obviously be invalid. Ultimately, I want to be able to parse and interpret any number of chains of operations with the blocks that the user can drag together. Can anyone explain to me or point me to resources for parsing basic math expressions? I'd prefer as much of a language agnostic answer as possible.

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  • Toggle row visibility one at a time

    - by kuswantin
    I have a couple of tables with similar structures like this: <table> <tbody> <tr>content</tr> <tr>content</tr> <tr>content</tr> <tr>content</tr> <tr>content</tr> <tr>content</tr> <tr>content</tr> <tr>content</tr> ..etc --- The fake button is added here <div class="addrow">Add another</div> </tbody> </table> Since this is a long list, I have a need to toggle the rows one at a time. I just need to show the first row, of course, the rest should be toggled. The action is when I click a dynamic fake button, it will show row no. 2, and clicking again will show another next row. This is what I have done so far: $("table#field_fruit_values tr.draggable").not(':first').hide(); $("table#field_vegetables_values tr.draggable").not(':first').hide(); $("body.form table.content-multiple-table tbody").append('<div class="addrow">Add</div>'); $(".addrow").click(function() { var hiddenRow = $(this).prev('tr.draggable'); $(this).prev(hiddenRow + 1).show(); //if (hiddenRow + ':last').length) { // <= silly logic // $(this).hide(); //} }); The button only works for one row. I must have done something wrong :) When the final is reached, I also want the button to disappear. Sorry if this question sound silly. Any help would be very much appreciated. Thanks.

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  • junit assert in thread throws exception

    - by antony.trupe
    What am I doing wrong that an exception is thrown instead of showing a failure, or should I not have assertions inside threads? @Test public void testComplex() throws InterruptedException { int loops = 10; for (int i = 0; i < loops; i++) { final int j = i; new Thread() { @Override public void run() { ApiProxy.setEnvironmentForCurrentThread(env);//ignore this new CounterFactory().getCounter("test").increment();//ignore this too int count2 = new CounterFactory().getCounter("test").getCount();//ignore assertEquals(j, count2);//here be exceptions thrown. this is line 75 } }.start(); } Thread.sleep(5 * 1000); assertEquals(loops, new CounterFactory().getCounter("test").getCount()); } StackTrace Exception in thread "Thread-26" junit.framework.AssertionFailedError: expected:<5> but was:<6> at junit.framework.Assert.fail(Assert.java:47) at junit.framework.Assert.failNotEquals(Assert.java:277) at junit.framework.Assert.assertEquals(Assert.java:64) at junit.framework.Assert.assertEquals(Assert.java:195) at junit.framework.Assert.assertEquals(Assert.java:201) at com.bitdual.server.dao.ShardedCounterTest$3.run(ShardedCounterTest.java:77)

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