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Tutorial Addendum on Perl - Allotment B - RPC::XML Bore

 Of course, this is a actual simple XML-RPC server:It offers 3 methods: com..hello, com..getCelsius, and com..getInfo.com..hello has one signature: acknowledgment blazon of string, and no inputargument. Its abettor action is authentic central the add_method call.com..getCelsius has two signatures. The first one requires no inputargument, and the additional one requires one "double" argument. com..getInfo has one signature of abiding an arrangement . The correspondinghandler action allotment a advertence to a list. The server knows how to convertthe agreeable of the advertence to an arrangement .If you run the RpcXmlServer.pl in a command window, you will see: Adding com..hello...Adding com..getCelsius...Adding com..getInfo...Listening at localhost:8001...To analysis my server program, I wrote the afterward applicant program, RpcXmlClient.pl: #- RpcXmlClient.pl#- Absorb (c) 2005 by Dr. Yang# crave RPC::XML; crave RPC::XML::Client; my $client = RPC::XML::Client->new( http://localhost:8001... Read More by user

Tutorial Addendum on Perl - Allotment B - RPC::XML Bore

 This affiliate describes:What is RPC::XML?How to install NMake 1.5.How to install RPC::XML 0.57.Example programs on how to use RPC::XML. More archetype programs on how to canyon an arrangement as an ascribe argument.What Is RPC::XML?RPC::XML is a Perl accomplishing of the XML-RPC blueprint developed byRandy J. Ray. RPC::XML offers:An XML-RPC server, and a server ancillary programming interface.An accumulation of classes to represent assorted XML elements of XML-RPC amount types.An XML-RPC applicant ancillary programming interface.RPC::XML contains the afterward classes:1. RPC::XML::Server - A XML-RPC server and programming interface for limited methodhandlers. It supports the afterward methods:new(host=> hostName , port=> anchorage , queue=> queueSize ) - Constructs and allotment a XML-RPC server item that listens on the defined host name at the defined anchorage with the defined chain size. The afterward statement shows you an archetype of how to use this constructor: $server = RPC::X... Read More by user

Tutorial Addendum on Perl - Allotment B - XML::Simple Bore

 Notes about "keyattr":Be careful, there is a absence ambience for "keyattr": .If an aspect is begin in the key list, the it s name will be removed,and it s amount will be adapted into a key in the ancestor hash.Note that we accept ARRAY(0x26426ec) in the out. The cause is that wehave a sub-element with the name "name", which is listed in "keyattr". When a sub-element is begin in the key list, it will be answer to the attribute level. But this will couldcause a problem on the amount part. The agreeable of the sub aspect is adapted into arrayfirst, then this arrangement is acclimated as the amount of this answer attribute.Since this answer aspect is adapted into a key in the paremt hash, the arrangement adapted from the agreeable will be acclimated as the key. This is why you see ARRAY(0x26426ec) .Hash Modification Archetype - XmlSimpleHash.plThe afterward archetype shows you hot to adapt the consistent assortment of the parsing operation. The important affair to bethink if accessing the... Read More by user

Tutorial Addendum on Perl - Allotment B - XML::Simple Bore

 "keyattr" Archetype - XmlSimpleKey.plkeyattr => list: Applies to XMLin() and XMLout() to name attributes, or sub-elements as keys to be acclimated to promot the ancestor aspect fromarray to hash. Bethink that there is absence list: "name", "key", and "id".The afterward program shows you how to use option, keyattr: #- XmlSimpleKey.pl#- Absorb (c) 1999 by Dr. Yang# use XML::Simple; use Data::Dumper; my $xs = new XML::Simple(keeproot => 1,searchpath => ".", forcearray => 1); # absence is: keyattr => ) my $ref = $xs->XMLin("bank.xml"); my $xml = $xs->XMLout($ref); book " Hash dump with keyattr => : "; book Dumper($ref); book " XML achievement with keyattr => : "; book $xml; my $xs = new XML::Simple(keeproot => 1,searchpath => ".", forcearray => 1, keyattr => ); my $ref = $xs->XMLin("bank.xml"); my $xml = $xs->XMLout($ref); book " Hash dump with keyattr => : "; book Dumper($ref); book " XML achievement with keyattr => : "; book $xml; exit;The ascribe file, bank.xml, has the afterward XML: &... Read More by user

Tutorial Addendum on Perl - Allotment B - XML::Simple Bore

 Here is the achievement of the program: Hash dump after suppressempty => :$VAR1 = { arrangement => } ] };XML achievement after suppressempty => :<system> <content> This is a testing system. </content> <content> Needs to add added entries later.</content> <user status="active"> <first_name>Mike</first_name> <last_name>Lee</last_name> <email>mike@lee.com</email> </user> <user> Missing first name and email. <first_name></first_name> <last_name>Wong</last_name> <email></email> </user></system>Hash dump with suppressempty => :$VAR1 = { arrangement => } ] };XML achievement with suppressempty => :<system> <content> This is a testing system. </content> <content> Needs to add added entries later.</content> <user status="active"> <first_name>Mike</first_name> <last_name>Lee</last_name> <email>mike@lee.com</email> </user> <user> Missing first name and email. <first_name></first_name> ... Read More by user

Tutorial Addendum on Perl - Allotment B - XML::Simple Bore

 "forcearray" Archetype - XmlSimpleArray.plThe afterward program shows you how to use options, keeproot, searchpath, and forcearray: #- XmlSimpleArray.pl#- Absorb (c) 1999 by Dr. Yang# use XML::Simple; use Data::Dumper; my $xs = new XML::Simple(keeproot => 1,searchpath => "."); my $ref = $xs->XMLin("user.xml"); my $xml = $xs->XMLout($ref); book " Hash dump after forcearray => 1 : "; book Dumper($ref); book " XML achievement after forcearray => 1 : "; book $xml; my $xs = new XML::Simple(keeproot => 1,searchpath => ".", forcearray => 1,); my $ref = $xs->XMLin("user.xml"); my $xml = $xs->XMLout($ref); book " Hash dump with forcearray => 1 : "; book Dumper($ref); book " XML achievement with forcearray => 1 : "; book $xml; exit;The ascribe file, user.xml, has the afterward XML: <?xml version="1.0"?><user status="active"> <!-- This is not a absolute user. --> <first_name>Mike</first_name> <last_name>Lee</last_name></user>Here is the achievement of the program: Hash dum... Read More by user
Tags: simple, active, program, email, system, child, shows, elements, entries, print

Tutorial Addendum on Perl - Allotment B - XML::Simple Bore

 This affiliate describes:Introduction to XML::Simple module.Example Perl programs to use XML::Simple options.Example Perl program to adapt the parsed XML hash.If you charge to understand added about XML, amuse apprehend my additional book: " s Addendum on XML Technologies". XML::Simple MethodsXML::Simple bore is an simple API to apprehend and address XML files. It offers two capital methods:XMLin() and XMLout().XMLin(str) - Adjustment to anatomize the XML ascribe into a hash, and acknowledgment the advertence of the hash.The XML ascribe can be defined in 3 ways:If the adjustment is alleged with no parameter, the XML ascribe is in script_name.xml, wherescript_name is the aforementioned name of the calling Perl Software file.If the adjustment is alleged with a cord constant absolute <tag>, the XML ascribe is the cord param.If the adjustment is alleged with a cord constant after any <tag>, the XML ascribe is in the book with the cord param as book name.XMLout(ref) - Adjustment to ad... Read More by user

Tutorial Addendum on Perl - Allotment B - XML-RPC Agreement

 From the XML schema, we can see that:A "methodCall" aspect will accept a appropriate "methodName" aspect and an optional"params" element.A "methodName" aspect specifies the name of the method.A "params" aspect specifies a account of "param" elements as ambit for the method. A "param" aspect will accept a "value" element.A "value" aspect will accept a amount blazon element, which contains the absolute amount of the parameter.There are 7 amount blazon elements: "int", "boolean", "string", "double", "dateTime.iso8601", "base64", "struct" and "array". The first 6 are simple elements and the endure 2 are circuitous elements.A "struct" aspect will accept a account of "member" elements. A "memeber" aspect will accept a "name" element and a "value" element.An "array" aspect will accept a "data" elements, which will accept a account of "value" elements.The afterward is an archetype of "methodCall": <methodCall> <methodName>somePackage.someSort</methodName> <params> <param><val... Read More by user
Tags: accurate, array, example, content, elements, value, method, values, string, response

Tutorial Addendum on Perl - Allotment B - XML-RPC Agreement

 This affiliate describes:What is XML-RPC?XML-RPC specifications.For added advice XSD and XML, see my additional book: " s addendum on XML Technologies"at http://www.geocities.com/_yang/xml.What is XML-RPC?Here is the analogue of XML-RPC from the XML-RPC home page at http://www.xmlrpc.com:"It s a blueprint and a set of implementations that acquiesce software running on disparate operating systems, active in altered environments to create action calls over the Internet.""It s limited action calling using HTTP as the carriage and XML as the encoding. XML-RPC is advised to be as simple as possible, while acceptance circuitous data structures to be transmitted, candy and returned."My compassionate of XML-RPC is that it is blueprint of how to:Define a adjustment alarm in XML.Send a adjustment alarm over Internet with as a HTTP request.Define abiding ethics of a adjustment alarm in XML. Receive abiding ethics as a HTTP response.RPC stands for limited action call.XML-RPC Specifications1. Defin... Read More by user

Tutorial Addendum on Perl - Allotment B - XML in Applicant and Server Advice

 The bold ID abstraction is acclimated to analyze if an admission XML bulletin is for continuing an absolute bold or starting a new game. If the serverreceives a applicant bulletin for the first time, it will accredit a new bold ID,and acknowledgment the bold ID to the client. The applicant program haveto use this gameID in the consecutive letters to abide the aforementioned game. The server is not accounting to serve assorted audience simultaneously. Let s run GameServer.pl in command window, and let it accept to anchorage 8080for any applicant program connection. Now in addition command window, we can run the telnet command to analysis the server,"telnet localhost 8080". Then access the afterward XML bulletin to the telnet program.Remember telnet will not answer your ascribe on the screen, so you accept to blazon in the bulletin "blindly". <c><m>Hi there!</m></c>You will get the afterward bulletin from the server displayed on the telnet window <s> <m>Welcome to Bold ... Read More by user
Tags: simple, program, client, server, window, communication, message, command, setting, print

Tutorial Addendum on Perl - Allotment B - XML in Applicant and Server Advice

 This affiliate describes:Different XML applicant and server advice models.XML and Atrium Advice Archetype - GameServer.pl XML and Atrium Advice Archetype - GameClient.pl XML Applicant and Server Advice ModelOnce we understand how to plan XML strings and hashes, we can now attending at how XML technology can be acclimated in applicant and server communication.The alotof archaic way of using XML technology in applicant and server communicationis to address a applicant program and a server program to forward and accept XML messageswith TCP atrium advice over Internet. The afterward diagram illustrates how this works: Client Arrangement Server System XML | Internet | XMLClient Prog.<--->TCP|<-------------->|TCP<--->Server Prog.To apprentice added about TCP atrium communication, see the "Socket Communication" chapter of this book.XML with Atrium Advice Archetype - GameServer.plIn the afterward example, I wrote a simple applicant and server abject bold application. It s a simple gam... Read More by user

Tutorial Addendum on Perl - Allotment B - Atrium Advice

 Here is sample program to appearance you how these functions work: #- NetworkInfo.pm#- Absorb (c) 1999 by Dr. Yang# $s = getprotobyname( tcp ); @l = getprotobyname( tcp ); book " getprotobyname(): "; book " scalar = ", $s, " "; book " account = (", join( , ,@l), ") "; $s = getservbyname( ftp , tcp ); @l = getservbyname( ftp , tcp ); book " getservbyname(): "; book " scalar = ", $s, " "; book " account = (", join( , ,@l), ") "; $s = getservbyport(23, tcp ); @l = getservbyport(23, tcp ); book " getservbyport(): "; book " scalar = ", $s, " "; book " account = (", join( , ,@l), ") "; $s = gethostbyname( www.perl.org ); @l = gethostbyname( www.perl.org ); book " getservbyname(): "; book " scalar = ", $s, " "; book " account = (", join( , ,@l), ") "; $s = gethostbyname( 216.109.118.67 ); @l = gethostbyname( 216.109.118.67 ); book " getservbyname(): "; book " scalar = ", $s, " "; book " account = (", join( , ,@l), ") "; $domain = 2; $s = gethostbyaddr(pack( C4 , 216,109,118,67), $domain); @l ... Read More by user

Tutorial Addendum on Perl - Allotment B - Atrium Advice

 In the telnet window, blazon in the afterward text: Fish, I adulation you and account you actual much.But I will annihilate you asleep afore this day ends..The argument will be antipodal and alternate aback from the ReverseEchoer.pl: Welcome to About-face Answer Server. .hcum yrev uoy tcepser dna uoy evol I ,hsiF.sdne yad siht erofeb daed uoy llik lliw I tuB.Note that the telnet program is not announcement argument you typed in. It alone displays the argument accustomed from ReverseEchoer.pl program.SocketClient.pl - A Simple Atrium Applicant ApplicationInstead of using the telnet program, we can use the afterward program, SocketClient.pl,to acquaint with ReverseEchoer.pl: #- SocketClient.pl#- Absorb (c) 1999 by Dr. Yang# $domain = 2; # Internet domain $type = 1; # Sequenced, reliable, two-way connection, byte streams $proto = 6; # Manual Ascendancy Agreement (TCP) socket(SOCK,$domain,$type,$proto); $host = pack( C4 , 127,0,0,1); # localhost = 127.0.0.1 $port = 1024; $address = pack( S... Read More by user

Tutorial Addendum on Perl - Allotment B - Atrium Advice

 listen() - Sets a atrium handle to accept approach with the defined chain admeasurement of incoming affiliation requests. This action is alone acclimated by the server application.For example: $queueSize = 5; listen(SOCK, $queueSize);accept() - Waits for admission affiliation requests on the defined atrium handle, accepts the first affiliation request, creates a new atrium handle, one end apprenticed to the aforementioned local abode as the defined atrium handle, the additional end apprenticed to the remoteaddress accustomed in the affiliation request, and allotment the abolish address.If no error, the new atrium handle is accessible for data transmission.This action is alone acclimated by the server application.For example: $address = accept(NEWSOCK,SOCK);connect() - Sends a advice appeal to a limited abode that represents a anchorage on a limited system. If the limited arrangement accustomed the request, the defined sockethandle will be apprenticed to the limited address. If no error... Read More by user
Tags: accept, internet, simple, address, program, system, example, bound, client, server, application, handle, window, connection, communication, domain, requests, print

Tutorial Addendum on Perl - Allotment B - Atrium Advice

 This affiliate explains:What is a socket.How to authorize a atrium communication.A simple archetype of atrium server application.A simple archetype of atrium applicant application.Built-in arrangement account functions.Socket module.What Is a SocketSocket: An abstraction represents one end-point of a two-way communicationlink amid two programs active on the Internet network. Internet Address: A different amount to analyze anniversary computer arrangement on the Internet. Port: A amount apery an access point of on a computer arrangement on the Internet, area a two-way advice hotlink can be established. Local System: The computer arrangement at this end of a two-way communicationlink.Remote System: The computer arrangement at the additional end of a two-waycommunication link.A two-way advice hotlink on the Internet involves:Two computer systems, anniversary has its own Internet address.A anchorage amount on anniversary computer arrangement that is acclimated alone by this communication l... Read More by user

Tutorial Addendum on Perl - Allotment B - SOAP::Lite Modules

 SOAP::Lite Archetype In the sample programs apparent in the antecedent section, you don t see any SOAP XML messages.And you don t see how the server and the applicant forward letters to anniversary other. All of theseare hidden abaft SOAP::Lite modules. If you wish to understand added about how SOAP::Lite moduleswork, you can about-face on the trace action on the SOAP::Lite module. Here is the revised server program with trace on: #- SoapTcpServerTrace.pl#- Absorb (c) 2002 by Dr. Yang use SOAP::Lite +trace; use SOAP::Transport::TCP; my $daemon = SOAP::Transport::TCP::Server ->new(LocalAddr => localhost , LocalPort => 8001, Accept => 5); $daemon->dispatch_to( Hello::hello ); book "SOAP TCP server listening... "; book " Host: ", $daemon->sockhost, " "; book " Port: ", $daemon->sockport, " "; $daemon->handle();Here is the revised applicant program with trace on: #- SoapTcpClientTrace.pl#- Absorb (c) 2002 by Dr. Yang use SOAP::Lite +trace; my $client = SOAP::Lite->new(); $client->uri( urn:... Read More by user
Tags: program, client, server, handle, instance, trace, envelope, print

Tutorial Addendum on Perl - Allotment B - SOAP::Lite Modules

 SOAP::Transport::TCP ModuleLet s attending at one of the SOAP server API bore first. SOAP::Transport::TCP has sub bore alleged SOAP::Transport::TCP::Server. It offers two functionalites:1. Demography SOAP requests as a SOAP server; 2. Interacting with appliance modules to handle the requests as a SOAP server ancillary API.Main functions of SOAP::Transport::TCP::Server are:new(LocalAddr=> hostname , LocalPort=> anchorage , Listen=> queueSize ) - Constructs and allotment SOAP server item that listens on the defined host nameat the defined anchorage with the defined chain size.dispatch_to( Module::method ) - Defines the bore name and the adjustment name that can be alleged by the admission SOAP appeal for this server, and allotment this server object. handle() - Puts this server in cat-and-mouse approach for admission SOAP request. Whenevera SOAP appeal comes, it will be automatically anesthetized to the bore name and the adjustment namedefined by the dispatch_to() action based on the SOA... Read More by user

Tutorial Addendum on Perl - Allotment B - SOAP::Lite Modules

 This affiliate describes:Quick addition to SOAP. Overview of SOAP::Lite modules. Introduction to SOAP::Transport::TCP Bore and sample SOAP server program.Introduction to SOAP::Lite and sample SOAP applicant program.How to the trace affection in SOAP::Lite.What is SOAP?SOAP (Simple Item Accessing Protocol) - A client-server advice agreement to acquiesce the applicant ancillary to accessing programming altar on the server side, and assassinate methodsagainst those objects, and accepting beheading result. All these functionalities are archived by sending and accepting XML letters over assorted busline protocols, like TCP, HTTP, FTP, etc. There are two options for an appliance program, applicant ancillary or server side, to useSOAP:1. Chase the SOAP protocol, and do aggregate yourself. Actuality is the advice diagram: | SOAP on TCP |Client Prog.|<-------------->|Server Prog.Here is the accomplish complex to complet a individual SOAP communication: Step Applicant Program Server Program 1... Read More by user
Tags: simple, program, technology, client, server, application, package, communication, message, interface, notes, response

Tutorial Addendum on Perl - Allotment B - RPC::XML Bore

 RpcXmlServer2.pl - Accepting an ArrayA company mailed me a sample RPC::XML server program that bootless to accept an arrangement from the client. The couldcause of the problem was accompanying to how an ascribe altercation of an arrangement is delivered to the accepting method on the server side. The aphorism of casual arrays is simple: "All arrays are anesthetized as harder references".Here is the adapted sample server program, RpcXmlServer2.pl: #- RpcXmlServer2.pl#- Absorb (c) 2005 by Dr. Yang# use RPC::XML; use RPC::XML::Server; my $host = "localhost"; my $port = "8001"; my $daemon = RPC::XML::Server->new(host => $host, anchorage => $port);# book "Adding com..saveArray... "; my $method = RPC::XML::Method->new({ name => com..saveArray , signature => [ cord arrangement ], cipher => &saveArray}); $daemon->add_method($method);# book "Listening at $host:$port... "; $daemon->server_loop();sub saveArray { my $s = shift; # The first constant is the server object# my @a = shift; # Actual... Read More by user

Tutorial Addendum on Perl - Allotment B - RPC::XML Bore

 Installing NMake 1.5Based on the documation, the accession action of RPC::XML bore requires the "make" utility. Since I am using a Windows arrangement now, so I charge to download a "make" account for Windows. John Bokma has accounting a nice apprenticeship on how to download and install Microsoft NMake at: http://johnbokma.com/perl/make-for-windows.html. I acclimated the afterward accomplish to install NMake 1.5 on my bounded machine.1. Download nmake15.exe at: http://support.microsoft.com/default.aspx?scid=kb;en-us;Q1320842. Bifold bang on nmake15.exe. It will accomplish 3 files: nmake.exe, nmake.err and readme.txt. 3. Archetype nmake.exe and nmake.err to perlin, which is area ActivePerl executable files are located.4. Now try the nmake command in a command window. If you see the afterward message, NMake 1.5is installed correctly: >nmakeMicrosoft (R) Program Aliment Account Adaptation 1.50Copyright (c) Microsoft Corp 1988-94. All rights reserved.NMAKE : baleful absurdity U1064: MAKE... Read More by user

 

 

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