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  • How would you start automating my job?

    - by Jurily
    At my new job, we sell imported stuff. In order to be able to sell said stuff, currently the following things need to happen for every incoming shipment: Invoice arrives, in the form of an email attachment, Excel spreadsheet Monkey opens invoice, copy-pastes the relevant part of three columns into the relevant parts of a spreadsheet template, where extremely complex calculations happen, like =B2*550 Monkey sends this new spreadsheet to boss (email if lucky, printer otherwise), who sets the retail price Monkey opens the reply, then proceeds to input the data into the production database using a client program that is unusable on so many levels it's not even worth detailing Monkey fires up HyperTerminal, types in "AT", disconnect Monkey sends text messages and emails to customers using another part of the horrible client program, one at a time I want to change Monkey from myself to software wherever possible. I've never written anything that interfaces with email, Excel, databases or SMS before, but I'd be more than happy to learn if it saves me from this. Here's my uneducated wishlist: Monkey asks Thunderbird (mail server perhaps?) for the attachment Monkey tells Excel to dump the spreadsheet into a more Jurily-friendly format, like CSV or something Monkey parses the output, does the complex calculations // TODO: find a way to get the boss-generated prices with minimal manual labor involved Monkey connects to the database, inserts data Monkey spams costumers Is all this feasible? If yes, where do I start reading? How would you improve it? What language/framework do you think would be ideal for this? What would you do about the boss?

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  • What to do when you are a programmer and have a cold?

    - by Zak
    If you have a cold that isn't too bad, does it make sense to still go into the office and get some coding done? Assume a private office, no meetings for the day, and you have some documentation and coding tasks that need to get done. Also assume that you operate on a PTO system, where all days off are "vacation" or PTO. To clarify, should one just not code at all when under the weather? That's what I'm getting at. Will you just kick yourself in your own rear when you go back to deal with code you wrote when you are sick? What is the error defect rate of sick vs non-sick programming hours?

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  • Aggregating a list of dates to start and end date

    - by Joe Mako
    I have a list of dates and IDs, and I would like to roll them up into periods of consucitutive dates, within each ID. For a table with the columns "testid" and "pulldate" in a table called "data": | A79 | 2010-06-02 | | A79 | 2010-06-03 | | A79 | 2010-06-04 | | B72 | 2010-04-22 | | B72 | 2010-06-03 | | B72 | 2010-06-04 | | C94 | 2010-04-09 | | C94 | 2010-04-10 | | C94 | 2010-04-11 | | C94 | 2010-04-12 | | C94 | 2010-04-13 | | C94 | 2010-04-14 | | C94 | 2010-06-02 | | C94 | 2010-06-03 | | C94 | 2010-06-04 | I want to generate a table with the columns "testid", "group", "start_date", "end_date": | A79 | 1 | 2010-06-02 | 2010-06-04 | | B72 | 2 | 2010-04-22 | 2010-04-22 | | B72 | 3 | 2010-06-03 | 2010-06-04 | | C94 | 4 | 2010-04-09 | 2010-04-14 | | C94 | 5 | 2010-06-02 | 2010-06-04 | This is the the code I came up with: SELECT t2.testid, t2.group, MIN(t2.pulldate) AS start_date, MAX(t2.pulldate) AS end_date FROM(SELECT t1.pulldate, t1.testid, SUM(t1.check) OVER (ORDER BY t1.testid,t1.pulldate) AS group FROM(SELECT data.pulldate, data.testid, CASE WHEN data.testid=LAG(data.testid,1) OVER (ORDER BY data.testid,data.pulldate) AND data.pulldate=date (LAG(data.pulldate,1) OVER (PARTITION BY data.testid ORDER BY data.pulldate)) + integer '1' THEN 0 ELSE 1 END AS check FROM data ORDER BY data.testid, data.pulldate) AS t1) AS t2 GROUP BY t2.testid,t2.group ORDER BY t2.group; I use the use the LAG windowing function to compare each row to the previous, putting a 1 if I need to increment to start a new group, I then do a running sum of that column, and then aggregate to the combinations of "group" and "testid". Is there a better way to accomplish my goal, or does this operation have a name? I am using PostgreSQL 8.4

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  • tomcat wont start up on linux machine

    - by David
    hi, im new to linux but after spending the day i have got linux running. installed java and tomcat. my goal is host my app with this linux box i've just set up. i know it all works fine from my windows based machine but it is my laptop so i'm planning this as my dedicated server. following many many forums i've now got tomcat 7 installed. however i cannot get it to start. changing to the tomcat directory and "./startup.sh" i get output Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local.tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: usr/lib/jvm/java-6-sun/ Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local.tomcat/bin/c\tomcat-juli.jar thats the end of theoutput. however localhost:8080 is not up. and in the tomcat log file is the error "eval: 1: usr/lib/jvm/java-6-sun//bin/java: not found" hopfully there is some expert here who can help me with this problem. please note that im a novice when it comes to linux. thankyou oh and my version of linux is Ubuntu 10.04 LTS - the Lucid Lynx

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  • How to make paging start from 1 instead of 0 in ASP.NET MVC

    - by ssx
    I used the paging example of the Nerddinner tutorial. But I also wanted to add page Numbers, somehting like that: <<< 1 2 3 4 5 6 The code below works if i start my paging from 0, but not from 1. How can I fix this ? Here is my code: PaginatedList.cs public class PaginatedList<T> : List<T> { public int PageIndex { get; private set; } public int PageSize { get; private set; } public int TotalCount { get; private set; } public int TotalPages { get; private set; } public PaginatedList(IQueryable<T> source, int pageIndex, int pageSize) { PageIndex = pageIndex; PageSize = pageSize; TotalCount = source.Count(); TotalPages = (int) Math.Ceiling(TotalCount / (double)PageSize); this.AddRange(source.Skip(PageIndex * PageSize).Take(PageSize)); } public bool HasPreviousPage { get { return (PageIndex > 0); } } public bool HasNextPage { get { return (PageIndex+1 < TotalPages); } } } UserController.cs public ActionResult List(int? page) { const int pageSize = 20; IUserRepository userRepository = new UserRepository(); IQueryable<User> listUsers = userRepository.GetAll(); PaginatedList<User> paginatedUsers = new PaginatedList<User>(listUsers, page ?? 0, pageSize); return View(paginatedUsers); } List.cshtml @if (Model.HasPreviousPage) { @Html.RouteLink(" Previous ", "PaginatedUsers", new { page = (Model.PageIndex - 1) }) } @for (int i = 1; i <= Model.TotalPages; i++) { @Html.RouteLink(@i.ToString(), "PaginatedUsers", new { page = (@i ) }) } @if (Model.HasNextPage) { @Html.RouteLink(" Next ", "PaginatedUsers", new { page = (Model.PageIndex + 1) }) }

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  • JavaScript Fails to load content correctly on start

    - by Gaz_Edge
    I have inherited an image gallery constructed using javascript. I believe it uses a variation of JQuery, but it seems to have been heavily edited. The gallery loads the first image on page load. Each image has comments below them. There are forward and backward arrows that move between images. The problem I seem to have is that if there is a comment on image one, it is not loaded on page start, the only way to get it to display is to click forward to the next image, then click back to image one. The comment is then shown. All the comments are loaded into a script in the header under var sent_comments = [{COMMENTS}] The comment HTML code on loading is as follows; <div id="comments_container"> <div id="comments"> </div> </div> Once I have clicked to image two and then back to image one, the code is; <div id="comments_container"> <div id="comments"> SOME COMMENT </div> </div> Previous image button is: <a class="prev save_state" href="#"> <img src="/next.png?" alt="Next"> </a> Im new to javascript so not really sure what I will need to do to ensure the comment is loaded for the first image when the page loads. Code here: http://static.albumexposure.net/assets/presentation-9f47b054d96f9ec2459e89619a5fe9b4.js http://static.albumexposure.net/assets/presentations/book-699d82a2beb39df264e54c5d2578e0e4.js

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  • how to start activity of the positive button?

    - by Wisnuardi
    when I click an item in maps, it will appears positive button that reads "Route to". Question, how do I start activity from that positive button? I also use like this, dialog.setPositiveButton("Tampilkan Rute", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int Button) { Intent i = new Intent(this, Rute.class); startActivity(i); } }); to startactivity into Rute class but it always say "remove argument to match intent()" then I don't know what to do. here is my code @Override protected boolean onTap(int index) { OverlayItem item = items.get(0); AlertDialog.Builder dialog = new AlertDialog.Builder(mContext); dialog.setTitle(item.getTitle()); dialog.setMessage(item.getSnippet()); dialog.setPositiveButton("Tampilkan Rute", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int Button) { Intent i = new Intent(this, Rute.class); startActivity(i); } }); dialog.setNegativeButton("Kembali", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int Button) { dialog.cancel(); } }); dialog.show(); return true; } Any suggestions will be greatly appreciated. Thank's i'm sorry if my english is bad :(

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  • Changing User/Group to allow PHP to chmod/rename and move_upload_file()

    - by moe
    Hi There, It seems like I cannot do anything with my PHP script on my VPS. It returns 'Permission denied' when I try to upload something to a directory. Yes, I have changed the permission to 777, and it works, but I do not like the insecurity When running the command: ps axu|grep apache|grep -v grep It returns nobody 7689 0.1 3.8 50604 20036 ? S 21:38 0:00 /usr/local/apache/bin/httpd -k start -DSSL root 13600 0.0 3.8 50304 20348 ? Ss Jun06 0:46 /usr/local/apache/bin/httpd -k start -DSSL nobody 15733 0.1 3.8 50700 20156 ? S 21:39 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 15818 0.1 3.8 51492 20180 ? S 21:39 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 23843 0.1 3.7 51336 19592 ? S 21:40 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30335 0.0 3.5 50436 18496 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30406 0.0 3.5 50444 18544 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30407 0.0 3.5 50556 18696 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30472 0.0 3.6 50828 19348 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30474 0.0 3.5 50668 18868 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30476 0.0 3.6 50532 19064 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30501 0.0 3.8 50556 20080 ? S 21:36 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32341 0.0 3.5 50444 18492 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32370 0.0 3.5 50444 18476 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32414 0.1 3.7 51336 19524 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32416 0.1 3.5 50668 18816 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32457 0.1 3.6 50828 19320 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32458 0.1 3.6 50772 19276 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32459 0.0 3.5 50444 18504 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32460 0.2 3.6 50828 19320 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32463 0.0 3.5 50444 18472 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32466 0.0 3.4 50436 17960 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL The owner of the directory is 'user [505]' and the group is 'user[508]' (as seen in WinSCP) What can I do to change the Apache Handler to the right owner and group to allow my PHP scripts to work? P.S My PHP is not set to safe mode, and the open_basedir is set to no value

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  • When and how often to start connection to database in php?

    - by AndHeiberg
    When and how often is it good practice to start the connection to your database in php? I'm new to databases, and I'm wondering when I should start by database connection. I'm creating a api with an index, controllers and model. Should I start the connection in the index and then pass it to all the other files, start the connection at the top of all files and call it as a global in functions as needed or start and end the connection in every function?

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  • web.xml not reloading in tomcat even after stop/start

    - by ajay
    This is in relation to:- http://stackoverflow.com/questions/2576514/basic-tomcat-servlet-error I changed my web.xml file, did ant compile , all, /etc/init.d/tomcat stop , start Even then my web.xml file in tomcat deployment is still unchanged. This is build.properties file:- app.name=hello catalina.home=/usr/local/tomcat manager.username=admin manager.password=admin This is my build.xml file. Is there something wrong with this:- <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <!-- General purpose build script for web applications and web services, including enhanced support for deploying directly to a Tomcat 6 based server. This build script assumes that the source code of your web application is organized into the following subdirectories underneath the source code directory from which you execute the build script: docs Static documentation files to be copied to the "docs" subdirectory of your distribution. src Java source code (and associated resource files) to be compiled to the "WEB-INF/classes" subdirectory of your web applicaiton. web Static HTML, JSP, and other content (such as image files), including the WEB-INF subdirectory and its configuration file contents. $Id: build.xml.txt 562814 2007-08-05 03:52:04Z markt $ --> <!-- A "project" describes a set of targets that may be requested when Ant is executed. The "default" attribute defines the target which is executed if no specific target is requested, and the "basedir" attribute defines the current working directory from which Ant executes the requested task. This is normally set to the current working directory. --> <project name="My Project" default="compile" basedir="."> <!-- ===================== Property Definitions =========================== --> <!-- Each of the following properties are used in the build script. Values for these properties are set by the first place they are defined, from the following list: * Definitions on the "ant" command line (ant -Dfoo=bar compile). * Definitions from a "build.properties" file in the top level source directory of this application. * Definitions from a "build.properties" file in the developer's home directory. * Default definitions in this build.xml file. You will note below that property values can be composed based on the contents of previously defined properties. This is a powerful technique that helps you minimize the number of changes required when your development environment is modified. Note that property composition is allowed within "build.properties" files as well as in the "build.xml" script. --> <property file="build.properties"/> <property file="${user.home}/build.properties"/> <!-- ==================== File and Directory Names ======================== --> <!-- These properties generally define file and directory names (or paths) that affect where the build process stores its outputs. app.name Base name of this application, used to construct filenames and directories. Defaults to "myapp". app.path Context path to which this application should be deployed (defaults to "/" plus the value of the "app.name" property). app.version Version number of this iteration of the application. build.home The directory into which the "prepare" and "compile" targets will generate their output. Defaults to "build". catalina.home The directory in which you have installed a binary distribution of Tomcat 6. This will be used by the "deploy" target. dist.home The name of the base directory in which distribution files are created. Defaults to "dist". manager.password The login password of a user that is assigned the "manager" role (so that he or she can execute commands via the "/manager" web application) manager.url The URL of the "/manager" web application on the Tomcat installation to which we will deploy web applications and web services. manager.username The login username of a user that is assigned the "manager" role (so that he or she can execute commands via the "/manager" web application) --> <property name="app.name" value="myapp"/> <property name="app.path" value="/${app.name}"/> <property name="app.version" value="0.1-dev"/> <property name="build.home" value="${basedir}/build"/> <property name="catalina.home" value="../../../.."/> <!-- UPDATE THIS! --> <property name="dist.home" value="${basedir}/dist"/> <property name="docs.home" value="${basedir}/docs"/> <property name="manager.url" value="http://localhost:8080/manager"/> <property name="src.home" value="${basedir}/src"/> <property name="web.home" value="${basedir}/web"/> <!-- ==================== External Dependencies =========================== --> <!-- Use property values to define the locations of external JAR files on which your application will depend. In general, these values will be used for two purposes: * Inclusion on the classpath that is passed to the Javac compiler * Being copied into the "/WEB-INF/lib" directory during execution of the "deploy" target. Because we will automatically include all of the Java classes that Tomcat 6 exposes to web applications, we will not need to explicitly list any of those dependencies. You only need to worry about external dependencies for JAR files that you are going to include inside your "/WEB-INF/lib" directory. --> <!-- Dummy external dependency --> <!-- <property name="foo.jar" value="/path/to/foo.jar"/> --> <!-- ==================== Compilation Classpath =========================== --> <!-- Rather than relying on the CLASSPATH environment variable, Ant includes features that makes it easy to dynamically construct the classpath you need for each compilation. The example below constructs the compile classpath to include the servlet.jar file, as well as the other components that Tomcat makes available to web applications automatically, plus anything that you explicitly added. --> <path id="compile.classpath"> <!-- Include all JAR files that will be included in /WEB-INF/lib --> <!-- *** CUSTOMIZE HERE AS REQUIRED BY YOUR APPLICATION *** --> <!-- <pathelement location="${foo.jar}"/> --> <!-- Include all elements that Tomcat exposes to applications --> <fileset dir="${catalina.home}/bin"> <include name="*.jar"/> </fileset> <pathelement location="${catalina.home}/lib"/> <fileset dir="${catalina.home}/lib"> <include name="*.jar"/> </fileset> </path> <!-- ================== Custom Ant Task Definitions ======================= --> <!-- These properties define custom tasks for the Ant build tool that interact with the "/manager" web application installed with Tomcat 6. Before they can be successfully utilized, you must perform the following steps: - Copy the file "lib/catalina-ant.jar" from your Tomcat 6 installation into the "lib" directory of your Ant installation. - Create a "build.properties" file in your application's top-level source directory (or your user login home directory) that defines appropriate values for the "manager.password", "manager.url", and "manager.username" properties described above. For more information about the Manager web application, and the functionality of these tasks, see <http://localhost:8080/tomcat-docs/manager-howto.html>. --> <taskdef resource="org/apache/catalina/ant/catalina.tasks" classpathref="compile.classpath"/> <!-- ==================== Compilation Control Options ==================== --> <!-- These properties control option settings on the Javac compiler when it is invoked using the <javac> task. compile.debug Should compilation include the debug option? compile.deprecation Should compilation include the deprecation option? compile.optimize Should compilation include the optimize option? --> <property name="compile.debug" value="true"/> <property name="compile.deprecation" value="false"/> <property name="compile.optimize" value="true"/> <!-- ==================== All Target ====================================== --> <!-- The "all" target is a shortcut for running the "clean" target followed by the "compile" target, to force a complete recompile. --> <target name="all" depends="clean,compile" description="Clean build and dist directories, then compile"/> <!-- ==================== Clean Target ==================================== --> <!-- The "clean" target deletes any previous "build" and "dist" directory, so that you can be ensured the application can be built from scratch. --> <target name="clean" description="Delete old build and dist directories"> <delete dir="${build.home}"/> <delete dir="${dist.home}"/> </target> <!-- ==================== Compile Target ================================== --> <!-- The "compile" target transforms source files (from your "src" directory) into object files in the appropriate location in the build directory. This example assumes that you will be including your classes in an unpacked directory hierarchy under "/WEB-INF/classes". --> <target name="compile" depends="prepare" description="Compile Java sources"> <!-- Compile Java classes as necessary --> <mkdir dir="${build.home}/WEB-INF/classes"/> <javac srcdir="${src.home}" destdir="${build.home}/WEB-INF/classes" debug="${compile.debug}" deprecation="${compile.deprecation}" optimize="${compile.optimize}"> <classpath refid="compile.classpath"/> </javac> <!-- Copy application resources --> <copy todir="${build.home}/WEB-INF/classes"> <fileset dir="${src.home}" excludes="**/*.java"/> </copy> </target> <!-- ==================== Dist Target ===================================== --> <!-- The "dist" target creates a binary distribution of your application in a directory structure ready to be archived in a tar.gz or zip file. Note that this target depends on two others: * "compile" so that the entire web application (including external dependencies) will have been assembled * "javadoc" so that the application Javadocs will have been created --> <target name="dist" depends="compile,javadoc" description="Create binary distribution"> <!-- Copy documentation subdirectories --> <mkdir dir="${dist.home}/docs"/> <copy todir="${dist.home}/docs"> <fileset dir="${docs.home}"/> </copy> <!-- Create application JAR file --> <jar jarfile="${dist.home}/${app.name}-${app.version}.war" basedir="${build.home}"/> <!-- Copy additional files to ${dist.home} as necessary --> </target> <!-- ==================== Install Target ================================== --> <!-- The "install" target tells the specified Tomcat 6 installation to dynamically install this web application and make it available for execution. It does *not* cause the existence of this web application to be remembered across Tomcat restarts; if you restart the server, you will need to re-install all this web application. If you have already installed this application, and simply want Tomcat to recognize that you have updated Java classes (or the web.xml file), use the "reload" target instead. NOTE: This target will only succeed if it is run from the same server that Tomcat is running on. NOTE: This is the logical opposite of the "remove" target. --> <target name="install" depends="compile" description="Install application to servlet container"> <deploy url="${manager.url}" username="${manager.username}" password="${manager.password}" path="${app.path}" localWar="file://${build.home}"/> </target> <!-- ==================== Javadoc Target ================================== --> <!-- The "javadoc" target creates Javadoc API documentation for the Java classes included in your application. Normally, this is only required when preparing a distribution release, but is available as a separate target in case the developer wants to create Javadocs independently. --> <target name="javadoc" depends="compile" description="Create Javadoc API documentation"> <mkdir dir="${dist.home}/docs/api"/> <javadoc sourcepath="${src.home}" destdir="${dist.home}/docs/api" packagenames="*"> <classpath refid="compile.classpath"/> </javadoc> </target> <!-- ====================== List Target =================================== --> <!-- The "list" target asks the specified Tomcat 6 installation to list the currently running web applications, either loaded at startup time or installed dynamically. It is useful to determine whether or not the application you are currently developing has been installed. --> <target name="list" description="List installed applications on servlet container"> <list url="${manager.url}" username="${manager.username}" password="${manager.password}"/> </target> <!-- ==================== Prepare Target ================================== --> <!-- The "prepare" target is used to create the "build" destination directory, and copy the static contents of your web application to it. If you need to copy static files from external dependencies, you can customize the contents of this task. Normally, this task is executed indirectly when needed. --> <target name="prepare"> <!-- Create build directories as needed --> <mkdir dir="${build.home}"/> <mkdir dir="${build.home}/WEB-INF"/> <mkdir dir="${build.home}/WEB-INF/classes"/> <!-- Copy static content of this web application --> <copy todir="${build.home}"> <fileset dir="${web.home}"/> </copy> <!-- Copy external dependencies as required --> <!-- *** CUSTOMIZE HERE AS REQUIRED BY YOUR APPLICATION *** --> <mkdir dir="${build.home}/WEB-INF/lib"/> <!-- <copy todir="${build.home}/WEB-INF/lib" file="${foo.jar}"/> --> <!-- Copy static files from external dependencies as needed --> <!-- *** CUSTOMIZE HERE AS REQUIRED BY YOUR APPLICATION *** --> </target> <!-- ==================== Reload Target =================================== --> <!-- The "reload" signals the specified application Tomcat 6 to shut itself down and reload. This can be useful when the web application context is not reloadable and you have updated classes or property files in the /WEB-INF/classes directory or when you have added or updated jar files in the /WEB-INF/lib directory. NOTE: The /WEB-INF/web.xml web application configuration file is not reread on a reload. If you have made changes to your web.xml file you must stop then start the web application. --> <target name="reload" depends="compile" description="Reload application on servlet container"> <reload url="${manager.url}" username="${manager.username}" password="${manager.password}" path="${app.path}"/> </target> <!-- ==================== Remove Target =================================== --> <!-- The "remove" target tells the specified Tomcat 6 installation to dynamically remove this web application from service. NOTE: This is the logical opposite of the "install" target. --> <target name="remove" description="Remove application on servlet container"> <undeploy url="${manager.url}" username="${manager.username}" password="${manager.password}" path="${app.path}"/> </target> </project>

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  • [Java] RSA BadPaddingException : data must start with zero

    - by Robin Monjo
    Hello everyone. I try to implement an RSA algorithm in a Java program. I am facing the "BadPaddingException : data must start with zero". Here are the methods used to encrypt and decrypt my data : public byte[] encrypt(byte[] input) throws Exception { Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");// cipher.init(Cipher.ENCRYPT_MODE, this.publicKey); return cipher.doFinal(input); } public byte[] decrypt(byte[] input) throws Exception { Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");/// cipher.init(Cipher.DECRYPT_MODE, this.privateKey); return cipher.doFinal(input); } privateKey and publicKey attributes are read from files this way : public PrivateKey readPrivKeyFromFile(String keyFileName) throws IOException { PrivateKey key = null; try { FileInputStream fin = new FileInputStream(keyFileName); ObjectInputStream ois = new ObjectInputStream(fin); BigInteger m = (BigInteger) ois.readObject(); BigInteger e = (BigInteger) ois.readObject(); RSAPrivateKeySpec keySpec = new RSAPrivateKeySpec(m, e); KeyFactory fact = KeyFactory.getInstance("RSA"); key = fact.generatePrivate(keySpec); ois.close(); } catch (Exception e) { e.printStackTrace(); } return key; } Private key and Public key are created this way : public void Initialize() throws Exception { KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA"); keygen.initialize(2048); keyPair = keygen.generateKeyPair(); KeyFactory fact = KeyFactory.getInstance("RSA"); RSAPublicKeySpec pub = fact.getKeySpec(keyPair.getPublic(), RSAPublicKeySpec.class); RSAPrivateKeySpec priv = fact.getKeySpec(keyPair.getPrivate(), RSAPrivateKeySpec.class); saveToFile("public.key", pub.getModulus(), pub.getPublicExponent()); saveToFile("private.key", priv.getModulus(), priv.getPrivateExponent()); } and then saved in files : public void saveToFile(String fileName, BigInteger mod, BigInteger exp) throws IOException { FileOutputStream f = new FileOutputStream(fileName); ObjectOutputStream oos = new ObjectOutputStream(f); oos.writeObject(mod); oos.writeObject(exp); oos.close(); } I can't figured out how the problem come from. Any help would be appreciate ! Thanks in advance.

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  • How to start new browser window in cpecified location whith cpecified size

    - by Pritorian
    Hi all! I create a new instance and trying to resize new instance of browser like this: [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool GetWindowInfo(IntPtr hwnd, ref tagWINDOWINFO pwi); [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)] public struct tagRECT { /// LONG->int public int left; /// LONG->int public int top; /// LONG->int public int right; /// LONG->int public int bottom; } [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)] public struct tagWINDOWINFO { /// DWORD->unsigned int public uint cbSize; /// RECT->tagRECT public tagRECT rcWindow; /// RECT->tagRECT public tagRECT rcClient; /// DWORD->unsigned int public uint dwStyle; /// DWORD->unsigned int public uint dwExStyle; /// DWORD->unsigned int public uint dwWindowStatus; /// UINT->unsigned int public uint cxWindowBorders; /// UINT->unsigned int public uint cyWindowBorders; /// ATOM->WORD->unsigned short public ushort atomWindowType; /// WORD->unsigned short public ushort wCreatorVersion; } [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint); [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool UpdateWindow(IntPtr hWnd); private void button2_Click(object sender, EventArgs e) { using (System.Diagnostics.Process browserProc = new System.Diagnostics.Process()) { browserProc.StartInfo.FileName = webBrowser1.Url.ToString(); browserProc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Minimized; int i= browserProc.Id; tagWINDOWINFO info = new tagWINDOWINFO(); info.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(info); browserProc.Start(); GetWindowInfo(browserProc.MainWindowHandle, ref info); browserProc.WaitForInputIdle(); string str = browserProc.MainWindowTitle; MoveWindow(browserProc.MainWindowHandle, 100, 100, 100, 100, true); UpdateWindow(browserProc.MainWindowHandle); } } But I get an "No process is associated with this object". Could anyone help? Or mb other ideas how to run new browser window whith specified size and location?

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  • Can't start rails server after 3.0.1 upgrade

    - by Alberto
    Followed instructions on Railscast but can't get server to start. It states the following error: $ rails s script/rails:6:in `require': no such file to load -- rails/commands (LoadError)` from script/rails:6:in `<main>' Saw the answer on this related question but my Gemfile has no reference to any rails 2.x version and in the "bundle install" results i get this in the results: "Using rails (3.0.1)" EDIT: (adding Gemfile.lock details) GEM remote: http://rubygems.org/ specs: abstract (1.0.0) actionmailer (3.0.1) actionpack (= 3.0.1) mail (~> 2.2.5) actionpack (3.0.1) activemodel (= 3.0.1) activesupport (= 3.0.1) builder (~> 2.1.2) erubis (~> 2.6.6) i18n (~> 0.4.1) rack (~> 1.2.1) rack-mount (~> 0.6.12) rack-test (~> 0.5.4) tzinfo (~> 0.3.23) activemodel (3.0.1) activesupport (= 3.0.1) builder (~> 2.1.2) i18n (~> 0.4.1) activerecord (3.0.1) activemodel (= 3.0.1) activesupport (= 3.0.1) arel (~> 1.0.0) tzinfo (~> 0.3.23) activeresource (3.0.1) activemodel (= 3.0.1) activesupport (= 3.0.1) activesupport (3.0.1) arel (1.0.1) activesupport (~> 3.0.0) builder (2.1.2) calendar_date_select (1.16.1) erubis (2.6.6) abstract (>= 1.0.0) googlecharts (1.6.0) i18n (0.4.2) mail (2.2.9) activesupport (>= 2.3.6) i18n (~> 0.4.1) mime-types (~> 1.16) treetop (~> 1.4.8) mechanize (1.0.0) nokogiri (>= 1.2.1) mime-types (1.16) nokogiri (1.4.3.1) pg (0.9.0) polyglot (0.3.1) rack (1.2.1) rack-mount (0.6.13) rack (>= 1.0.0) rack-test (0.5.6) rack (>= 1.0) rails (3.0.1) actionmailer (= 3.0.1) actionpack (= 3.0.1) activerecord (= 3.0.1) activeresource (= 3.0.1) activesupport (= 3.0.1) bundler (~> 1.0.0) railties (= 3.0.1) railties (3.0.1) actionpack (= 3.0.1) activesupport (= 3.0.1) rake (>= 0.8.4) thor (~> 0.14.0) rake (0.8.7) sparklines (0.5.2) thor (0.14.4) treetop (1.4.8) polyglot (>= 0.3.1) tzinfo (0.3.23) PLATFORMS ruby DEPENDENCIES calendar_date_select googlecharts mechanize pg rails (= 3.0.1) sparklines EDIT: (adding Boot.rb details) require 'rubygems' # Set up gems listed in the Gemfile. gemfile = File.expand_path('../../Gemfile', __FILE__) begin ENV['BUNDLE_GEMFILE'] = gemfile require 'bundler' Bundler.setup rescue Bundler::GemNotFound => e STDERR.puts e.message STDERR.puts "Try running `bundle install`." exit! end if File.exist?(gemfile)

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  • Pop-Up Window at inital start up, of android application

    - by Josh Fairbank
    I am trying to find a code that will do a popup at the initial start up on an installed app. Much like a changelog that is starting to appear in more and more apps. I have found some similar codes, but being a beginner I haven't been able to figure out where to exactly put the code in and I always have tons of errors that still do not work once I try and fix them. I am working in Eclipse with an android project, and I'm using a webview to show a website. XML: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <WebView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/webview" android:layout_height="fill_parent" android:layout_width="fill_parent" android:scrollbarAlwaysDrawVerticalTrack="false"/> </LinearLayout> Java File: package com.A2Ddesigners.WhatThe; import android.app.Activity; import android.os.Bundle; import android.webkit.WebView; import android.webkit.WebViewClient; import android.view.KeyEvent; public class Whatthe extends Activity { WebView webview; /** Called when the activity is first created. */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) { webview.goBack(); return true; } return super.onKeyDown(keyCode, event); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); webview = (WebView) findViewById(R.id.webview); webview.setWebViewClient(new HelloWebViewClient()); webview.getSettings().setJavaScriptEnabled(true); webview.setInitialScale(50); webview.getSettings().setUseWideViewPort(true); webview.loadUrl("http://mdsitest2.com/"); } private class HelloWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } } }

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  • populate CoreData data model from JSON files prior to app start

    - by johannes_d
    I am creating an iPad App that displays data I got from an API in JSON format. My Core Data model has several entities(Countries, Events, Talks, ...). For each entity I have one .json file that contains all instances of the entity and its attributes as well as its relationships. I would like to populate my Core Data data model with these entities before the start of the App (otherwise it takes about 15 minutes for the iPad to create all the instances of the entities from the several JSON files using factory methods). I am currently importing the data into CoreData like this: -(void)fetchDataIntoDocument:(UIManagedDocument *)document { dispatch_queue_t dataQ = dispatch_queue_create("Data import", NULL); dispatch_async(dataQ, ^{ //Fetching data from application bundle NSURL *tedxgroupsurl = [[NSBundle mainBundle] URLForResource:@"contries" withExtension:@"json"]; NSURL *tedxeventsurl = [[NSBundle mainBundle] URLForResource:@"events" withExtension:@"json"]; //converting the JSON files to NSDictionaries NSError *error = nil; NSDictionary *countries = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfURL:countriesurl] options:kNilOptions error:&error]; countries = [countries objectForKey:@"countries"]; NSDictionary *events = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfURL:eventsurl] options:kNilOptions error:&error]; events = [events objectForKey:@"events"]; //creating entities using factory methods in NSManagedObject Subclasses (Country / Event) [document.managedObjectContext performBlock:^{ NSLog(@"creating countries"); for (NSDictionary *country in countries) { [Country countryWithCountryInfo:country inManagedObjectContext:document.managedObjectContext]; //creating Country entities } NSLog(@"creating events"); for (NSDictionary *event in events) { [Event eventWithEventInfo:event inManagedObjectContext:document.managedObjectContext]; // creating Event entities } NSLog(@"done creating, saving document"); [document saveToURL:document.fileURL forSaveOperation:UIDocumentSaveForOverwriting completionHandler:NULL]; }]; }); dispatch_release(dataQ); } This combines the different JSON files into one UIManagedDocument which i can then perform fetchRequests on to populate tableViews, mapView, etc. I'm looking for a way to create this document outside my application & add it to the mainBundle. Then I could copy it once to the apps DocumentsDirectory and be able I use it (instead of creating the Document within the app from the original JSON files). Any help is appreciated!

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  • Illegal Start of Expression

    - by Kraivyne
    Hello there, I have just started to learn the very basics of Java programming. Using a book entitled "Programming Video Games for the Evil Genius". I have had an Illegal Start of Expression error that I can't for the life of me get rid of. I have checked the sample code from the book and mine is identical. The error is coming from the for(int i = difficulty; i = 0; i- - ) line. Thanks for helping a newbie out. import javax.swing.*; public class S1P4 {public static void main(String[] args) throws Exception { int difficulty; difficulty = Integer.parseInt(JOptionPane.showInputDialog("How good are you?\n"+ "1 = Great\n"+"10 = Terrible")); boolean cont = false; do { cont = false; double num1 = (int)(Math.round(Math.random()*10)); double num2; do { num2 = (int)(Math.round(Math.random()*10)); } while(num2==0.0); int sign = (int)(Math.round(Math.random()*3)); double answer; System.out.println("\n\n*****"); if(sign==0) { System.out.println(num1+" times "+num2); answer = num1*num2; } else if(sign==1) { System.out.println(num1+" divided by"+num2); answer = num1/num2; } else if(sign==1) { System.out.println(num1+" plus "+num2); answer = num1+num2; } else if(sign==1) { System.out.println(num1+" minus "+num2); answer = num1-num2; } else { System.out.println(num1+" % "+num2); answer = num1%num2; } System.out.println("*****\n"); for(int i = difficulty; i >= 0; i- - ) { System.out.println(i+"..."); Thread.sleep(500); } System.out.println("ANSWER: "+answer); String again; again = JOptionPane.showInputDialog("Play again?"); if(again.equals("yes")) cont = true; } while(cont); } }

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  • java.lang.RuntimeException: Unable to start activity ComponentInfo cannot be cast to android.widget.ZoomControls

    - by Hwl
    I'm new to android development, hope you all can help me. I got this androidVNC viewer source code from internet. When i'm running the androidVNC application in the emulator, it will exit automatically then i get following errors in LogCat. Can anyone one help me? Thanks. FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{android.androidVNC/android.androidVNC.VncCanvasActivity}: java.lang.ClassCastException: com.antlersoft.android.zoomer.ZoomControls cannot be cast to android.widget.ZoomControls at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1955) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980) at android.app.ActivityThread.access$600(ActivityThread.java:122) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4340) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.ClassCastException: com.antlersoft.android.zoomer.ZoomControls cannot be cast to android.widget.ZoomControls at android.androidVNC.VncCanvasActivity.onCreate(VncCanvasActivity.java:585) at android.app.Activity.performCreate(Activity.java:4465) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1919) ... 11 more This is the ZoomControls java file: package com.antlersoft.android.zoomer; import android.content.Context; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.animation.AlphaAnimation; import android.widget.ImageButton; import android.widget.LinearLayout; import android.widget.ZoomButton; public class ZoomControls extends LinearLayout { private final ZoomButton mZoomIn; private final ZoomButton mZoomOut; private final ImageButton mZoomKeyboard; public ZoomControls(Context context) { this(context, null); } public ZoomControls(Context context, AttributeSet attrs) { super(context, attrs); setFocusable(false); LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); inflater.inflate(R.layout.zoom_controls, this, // we are the parent true); mZoomIn = (ZoomButton) findViewById(R.id.zoomIn); mZoomOut = (ZoomButton) findViewById(R.id.zoomOut); mZoomKeyboard = (ImageButton) findViewById(R.id.zoomKeys); } public void setOnZoomInClickListener(OnClickListener listener) { mZoomIn.setOnClickListener(listener); } public void setOnZoomOutClickListener(OnClickListener listener) { mZoomOut.setOnClickListener(listener); } public void setOnZoomKeyboardClickListener(OnClickListener listener) { mZoomKeyboard.setOnClickListener(listener); } /* * Sets how fast you get zoom events when the user holds down the * zoom in/out buttons. */ public void setZoomSpeed(long speed) { mZoomIn.setZoomSpeed(speed); mZoomOut.setZoomSpeed(speed); } @Override public boolean onTouchEvent(MotionEvent event) { /* Consume all touch events so they don't get dispatched to the view * beneath this view. */ return true; } public void show() { fade(View.VISIBLE, 0.0f, 1.0f); } public void hide() { fade(View.GONE, 1.0f, 0.0f); } private void fade(int visibility, float startAlpha, float endAlpha) { AlphaAnimation anim = new AlphaAnimation(startAlpha, endAlpha); anim.setDuration(500); startAnimation(anim); setVisibility(visibility); } public void setIsZoomInEnabled(boolean isEnabled) { mZoomIn.setEnabled(isEnabled); } public void setIsZoomOutEnabled(boolean isEnabled) { mZoomOut.setEnabled(isEnabled); } @Override public boolean hasFocus() { return mZoomIn.hasFocus() || mZoomOut.hasFocus(); } } This is the zoom_controls XML file: <merge xmlns:android="http://schemas.android.com/apk/res/android"> <ZoomButton android:id="@+id/zoomOut" android:background="@drawable/btn_zoom_down" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <ImageButton android:id="@+id/zoomKeys" android:background="@android:drawable/ic_dialog_dialer" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <ZoomButton android:id="@+id/zoomIn" android:background="@drawable/btn_zoom_up" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </merge>

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  • Unable to start ServiceIntent android

    - by Mj1992
    I don't know why my service class is not working although it was working fine before. I've the following service class. public class MyIntentService extends IntentService { private static PowerManager.WakeLock sWakeLock; private static final Object LOCK = MyIntentService.class; public MyIntentService() { super("MuazzamService"); } @Override protected void onHandleIntent(Intent intent) { try { String action = intent.getAction(); <-- breakpoint if (action.equals("com.google.android.c2dm.intent.REGISTRATION")) <-- passes by { handleRegistration(intent); } else if (action.equals("com.google.android.c2dm.intent.RECEIVE")) { handleMessage(intent); } } finally { synchronized(LOCK) { sWakeLock.release(); } } } private void handleRegistration(Intent intent) { try { String registrationId = intent.getStringExtra("registration_id"); String error = intent.getStringExtra("error"); String unregistered = intent.getStringExtra("unregistered"); if (registrationId != null) { this.SendRegistrationIDViaHttp(registrationId); Log.i("Regid",registrationId); } if (unregistered != null) {} if (error != null) { if ("SERVICE_NOT_AVAILABLE".equals(error)) { Log.e("ServiceNoAvail",error); } else { Log.i("Error In Recieveing regid", "Received error: " + error); } } } catch(Exception e) { Log.e("ErrorHai(MIS0)",e.toString()); e.printStackTrace(); } } private void SendRegistrationIDViaHttp(String regID) { HttpClient httpclient = new DefaultHttpClient(); try { HttpGet httpget = new HttpGet("http://10.116.27.107/php/GCM/AndroidRequest.php?registrationID="+regID+"&[email protected]"); //test purposes k liye muazzam HttpResponse response = httpclient.execute(httpget); HttpEntity entity=response.getEntity(); if(entity!=null) { InputStream inputStream=entity.getContent(); String result= convertStreamToString(inputStream); Log.i("finalAnswer",result); // Toast.makeText(getApplicationContext(),regID, Toast.LENGTH_LONG).show(); } } catch (ClientProtocolException e) { Log.e("errorhai",e.getMessage()); e.printStackTrace(); } catch (IOException e) { Log.e("errorhai",e.getMessage()); e.printStackTrace(); } } private static String convertStreamToString(InputStream is) { BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line = null; try { while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } } catch (IOException e) { Log.e("ErrorHai(MIS)",e.toString()); e.printStackTrace(); } finally { try { is.close(); } catch (IOException e) { Log.e("ErrorHai(MIS2)",e.toString()); e.printStackTrace(); } } return sb.toString(); } private void handleMessage(Intent intent) { try { String score = intent.getStringExtra("score"); String time = intent.getStringExtra("time"); Toast.makeText(getApplicationContext(), "hjhhjjhjhjh", Toast.LENGTH_LONG).show(); Log.e("GetExtraScore",score.toString()); Log.e("GetExtratime",time.toString()); } catch(NullPointerException e) { Log.e("je bat",e.getMessage()); } } static void runIntentInService(Context context,Intent intent){ synchronized(LOCK) { if (sWakeLock == null) { PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); sWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "my_wakelock"); } } sWakeLock.acquire(); intent.setClassName(context, MyIntentService.class.getName()); context.startService(intent); } } and here's how I am calling the service as mentioned in the android docs. Intent registrationIntent = new Intent("com.google.android.c2dm.intent.REGISTER"); registrationIntent.putExtra("app", PendingIntent.getBroadcast(this, 0, new Intent(), 0)); registrationIntent.putExtra("sender",Sender_ID); startService(registrationIntent); I've declared the service in the manifest file inside the application tag. <service android:name="com.pack.gcm.MyIntentService" android:enabled="true"/> I placed a breakpoint in my IntentService class but it never goes there.But if I declare my registrationIntent like this Intent registrationIntent = new Intent(getApplicationContext(),com.pack.gcm.MyIntentService); It works and goes to the breakpoint I've placed but intent.getAction() contains null and hence it doesn't go into the if condition placed after those lines. It says 07-08 02:10:03.755: W/ActivityManager(60): Unable to start service Intent { act=com.google.android.c2dm.intent.REGISTER (has extras) }: not found in the logcat.

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  • Java Refuses to Start - Could not reserve enough space for object heap

    - by Randyaa
    Background We have a pool of aproximately 20 linux blades. Some are running Suse, some are running Redhat. ALL share NAS space which contains the following 3 folders: /NAS/app/java - a symlink that points to an installation of a Java JDK. Currently version 1.5.0_10 /NAS/app/lib - a symlink that points to a version of our application. /NAS/data - directory where our output is written All our machines have 2 processors (hyperthreaded) with 4gb of physical memory and 4gb of swap space. We limit the number of 'jobs' each machine can process at a given time to 6 (this number likely needs to change, but that does not enter into the current problem so please ignore it for the time being). Some of our jobs set a Max Heap size of 512mb, some others reserve a Max Heap size of 2048mb. Again, we realize we could go over our available memory if 6 jobs started on the same machine with the heap size set to 2048, but to our knowledge this has not yet occurred. The Problem Once and a while a Job will fail immediately with the following message: Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. We used to chalk this up to too many jobs running at the same time on the same machine. The problem happened infrequently enough (MAYBE once a month) that we'd just restart it and everything would be fine. The problem has recently gotten much worse. All of our jobs which request a max heap size of 2048m fail immediately almost every time and need to get restarted several times before completing. We've gone out to individual machines and tried executing them manually with the same result. Debugging It turns out that the problem only exists for our SuSE boxes. The reason it has been happening more frequently is becuase we've been adding more machines, and the new ones are SuSE. 'cat /proc/version' on the SuSE boxes give us: Linux version 2.6.5-7.244-bigsmp (geeko@buildhost) (gcc version 3.3.3 (SuSE Linux)) #1 SMP Mon Dec 12 18:32:25 UTC 2005 'cat /proc/version' on the RedHat boxes give us: Linux version 2.4.21-32.0.1.ELsmp ([email protected]) (gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-52)) #1 SMP Tue May 17 17:52:23 EDT 2005 'uname -a' gives us the following on BOTH types of machines: UTC 2005 i686 i686 i386 GNU/Linux No jobs are running on the machine, and no other processes are utilizing much memory. All of the processes currently running might be using 100mb total. 'top' currently shows the following: Mem: 4146528k total, 3536360k used, 610168k free, 132136k buffers Swap: 4194288k total, 0k used, 4194288k free, 3283908k cached 'vmstat' currently shows the following: procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 0 610292 132136 3283908 0 0 0 2 26 15 0 0 100 0 If we kick off a job with the following command line (Max Heap of 1850mb) it starts fine: java/bin/java -Xmx1850M -cp helloworld.jar HelloWorld Hello World If we bump up the max heap size to 1875mb it fails: java/bin/java -Xmx1875M -cp helloworld.jar HelloWorld Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. It's quite clear that the memory currently being used is for Buffering/Caching and that's why so little is being displayed as 'free'. What isn't clear is why there is a magical 1850mb line where anything higher means Java can't start. Any explanations would be greatly appreciated.

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  • How can i clear a SQLite database each time i start my app

    - by AndroidUser99
    Hi, i want that each time i start my app my SQLite database get's cleaned for this, i need to make a method on my class MyDBAdapter.java code examples are welcome, i have no idea how to do it this is the dbadapter/helper i'm using: public class MyDbAdapter { private static final String TAG = "NotesDbAdapter"; private DatabaseHelper mDbHelper; private SQLiteDatabase mDb; private static final String DATABASE_NAME = "gpslocdb"; private static final String PERMISSION_TABLE_CREATE = "CREATE TABLE permission ( fk_email1 varchar, fk_email2 varchar, validated tinyint, hour1 time default '08:00:00', hour2 time default '20:00:00', date1 date, date2 date, weekend tinyint default '0', fk_type varchar, PRIMARY KEY (fk_email1,fk_email2))"; private static final String USER_TABLE_CREATE = "CREATE TABLE user ( email varchar, password varchar, fullName varchar, mobilePhone varchar, mobileOperatingSystem varchar, PRIMARY KEY (email))"; private static final int DATABASE_VERSION = 2; private final Context mCtx; private static class DatabaseHelper extends SQLiteOpenHelper { DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL(PERMISSION_TABLE_CREATE); db.execSQL(USER_TABLE_CREATE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS user"); db.execSQL("DROP TABLE IF EXISTS permission"); onCreate(db); } } /** * Constructor - takes the context to allow the database to be * opened/created * * @param ctx the Context within which to work */ public MyDbAdapter(Context ctx) { this.mCtx = ctx; } /** * Open the database. If it cannot be opened, try to create a new * instance of the database. If it cannot be created, throw an exception to * signal the failure * * @return this (self reference, allowing this to be chained in an * initialization call) * @throws SQLException if the database could be neither opened or created */ public MyDbAdapter open() throws SQLException { mDbHelper = new DatabaseHelper(mCtx); mDb = mDbHelper.getWritableDatabase(); return this; } public void close() { mDbHelper.close(); } public long createUser(String email, String password, String fullName, String mobilePhone, String mobileOperatingSystem) { ContentValues initialValues = new ContentValues(); initialValues.put("email",email); initialValues.put("password",password); initialValues.put("fullName",fullName); initialValues.put("mobilePhone",mobilePhone); initialValues.put("mobileOperatingSystem",mobileOperatingSystem); return mDb.insert("user", null, initialValues); } public Cursor fetchAllUsers() { return mDb.query("user", new String[] {"email", "password", "fullName", "mobilePhone", "mobileOperatingSystem"}, null, null, null, null, null); } public Cursor fetchUser(String email) throws SQLException { Cursor mCursor = mDb.query(true, "user", new String[] {"email", "password", "fullName", "mobilePhone", "mobileOperatingSystem"} , "email" + "=" + email, null, null, null, null, null); if (mCursor != null) { mCursor.moveToFirst(); } return mCursor; } public List<Friend> retrieveAllUsers() { List <Friend> friends=new ArrayList<Friend>(); Cursor result=fetchAllUsers(); if( result.moveToFirst() ){ do{ //note.getString(note.getColumnIndexOrThrow(NotesDbAdapter.KEY_TITLE))); friends.add(new Friend(result.getString(result.getColumnIndexOrThrow("email")), "","","","")); }while( result.moveToNext() ); } return friends; } }

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  • Android Respond To URL in Intent

    - by Isaac Waller
    I want my intent to be launched when the user goes to a certain url: for example, the android market does this with http://market.android.com/ urls. so does youtube. I want mine to do that too. If anybody could explain this, thank you very much. Isaac Waller

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  • how to use ob_start?

    - by user187580
    Hello I am using PHPSavant templating system for a project and I am not sure how to use ob_start in this. I have tried before .. for example, page_header.php -- ob_start(); page_footer.php -- ob_end_flush(); But because now I am using a templating system.. am not sure where to put these function. $template = new Savant3(); $template->some_var = $some_value; $template->display('default_template'); the default_template contains all of and populate section using some variables (set to $template object). Should I be using ob_start and ob_end_flush where my html code is or to include on each and every php file which calls to this template? Any ideas? thanks.

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  • Creating a desktop icon using JWS JNLP for a JavaFX app.

    - by Sleepycat
    I am trying to get a custom destop icon to be displayed for my app but for some reason no matter what I do the same default java icon shows up. I have tried everything I can think of and gone and compared my jnlp file with others whose icons seem to work ok. According to everything I have read the following should work fine. But of course, it doesn't: <information> <title>MikesApp</title> <vendor>Mike</vendor> <homepage href="http://www.mikesapp.com/"/> <description>Mikes App.</description> <icon kind="shortcut" href="res/icon64x64.png" width="64" height="64"/> <offline-allowed/> <shortcut> <desktop/> </shortcut> </information> Any ideas would be greatly appreciated.

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  • PHP sessions and class members.

    - by JDW
    Ok, messing about with classes in PHP and can't get it to work the way I'm used to as a C++/Java-guy. In the "_init" funtion, if I run a query at the "// query works here" line", everythong works, but in the "getUserID" function, all that happens is said warning... "getUserID" gets called from login.php (they are in the same dir): login.php <?php include_once 'sitehandler.php'; include_once 'dbhandler.php'; session_start(); #TODO: Safer input handling $t_userName = $_POST["name"]; $t_userId = $_SESSION['handler']['db']->getUserID($t_userName); if ($t_userId != -1) { $_SESSION['user']['name'] = $t_userName; $_SESSION['user']['id'] = $t_userId; } //error_log("user: " . $_SESSION['user']['name'] . ", id: ". $_SESSION['user']['id']); header("Location: " . $_SERVER["HTTP_REFERER"]); ? dbhandler.php <?php include_once 'handler.php'; class DBHandler extends HandlerAbstract { private $m_handle; function __construct() { parent::__construct(); } public function test() { #TODO: isdir liquibase #TODO: isfile liquibase-195/liquibase + .bat + execrights $this->m_isTested = true; } public function _init() { if (!$this->isTested()) $this->test(); if (!file_exists('files/data.db')) { #TODO: How to to if host is Windows based? exec('./files/liquibase-1.9.5/liquibase --driver=org.sqlite.JDBC --changeLogFile=files/data_db.xml --url=jdbc:sqlite:files/data.db update'); #TODO: quit if not success } #TODO: Set with default data try { $this->m_handle = new SQLite3('files/data.db'); } catch (Exception $e) { die("<hr />" . $e->getMessage() . "<hr />"); } // query works here $this->m_isSetup = true; } public function teardown() { } public function getUserID($name) { // PHP Warning: SQLite3::prepare(): The SQLite3 object has not been correctly initialised in $t_statement = $this->m_handle->prepare("SELECT id FROM users WHERE name = :name"); $t_statement->bindValue(":name", $name, SQLITE3_TEXT); $t_result = $t_statement->execute(); //var_dump($this->m_handle); return ($t_result)? (int)$t_result['id']: -1; } }

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