Oracle Forms Jenseits der DB Connection

Transcription

1 Oracle Forms Jenseits der DB Connection

2 Web Services Client WLS Web Services DB 2

3 Web Services im SQL SELECT utl_http.request( ' en ) translation FROM dual; {"responsedata": {"translatedtext":"senior technician","match":0.94,"quotafinished":false,"mtlangsupported":null,"responsedeta ils":"","responsestatus":200,"responderid":"242","exception_code":null,"matches": [{"id":" ","segment":"meister","translation":"senior technician","quality":"74","reference":null,"usage-count":1,"subject":"all","createdby":"matecat","last-updated-by":"matecat","create-date":" :24:58","last-updatedate":" :24:58","match":0.94, {"id":" ","segment":"meister","translation":"master","quality":"80","reference":null,"usage- count":41,"subject":"all","created-by":"matecat","last-updated-by":"matecat","create-date":" :57:18","last-update-date":" :57:18","match":0.93, {"id":" ","segment":"meister","translation":"senior LABOURS FORMAN","quality":"74","reference":null,"usage-count":1,"subject":"All","created-by":"MateCat","lastupdated-by":"MateCat","create-date":" :00:03","last-update-date":" :00:03","match":0.92] 3

4 Web Services im SQL SELECT json_value( utl_http.request( ' en ),'$.responsedata.translatedtext' returning VARCHAR2) translated FROM dual; 4

5 Web Services im SQL 5

6 Web Services im PL/SQL {"responsedata":{"translatedtext":"senior technician","match":0.94, "quotafinished":false,"mtlangsupported":null,"responsedetails":"", "responsestatus":200,"responderid":"242","exception_code":null, matches":[{"id":" ","segment":"meister","translation": "Senior technician","quality":"74","reference":null,"usage-count":1, "subject":"all","created-by":"matecat","last-updated-by": "MateCat","create-date":" :24:58","last-update-date": " :24:58","match":0.94,{"id":" ","segment": "MEISTER","translation":"MASTER","quality":"80","reference":null, "usage-count":41,"subject":"all","created-by":"matecat","last-updatedby":"matecat","create-date":" :57:18","last-update-date": " :57:18","match":0.93,{"id":" ","segment": "MEISTER","translation":"SENIOR LABOURS FORMAN","quality":"74", "reference":null,"usage-count":1,"subject":"all","created-by":"matecat", "last-updated-by":"matecat","create-date":" :00:03", "last-update-date":" :00:03","match":0.92] 6

7 Web Services im Oracle Forms 7

8 Web Services Client WLS Web Services DB 8

9 Web Services mit Java abrufen Die Beispielklasse hat lediglich eine Statische Funktion. Definition der URL mit Einsatz des Übergebene Strings Aufruf des Webservice und Empfang der Antwort Auswertung der JSON Antwort 9

10 Java in der Datenbank create or replace and compile java source named "Translator" as /* import com.google.gson.jsonobject; import com.google.gson.jsonparser;*/ import java.nio.charset.charset; import java.io.bufferedreader; import java.io.inputstreamreader; import java.net.httpurlconnection; import java.net.url; /** This class manages the translation of TownyWands GUI's! (EXPERIMENTAL) FastFelix771 to mymemory.translated.net for its awesome API, without this feature wouldnt be possible with the same awesome translationquality! */ public class Translator { // Code im Anhang / create or replace function translateplease( inputtext varchar2 ) return varchar2 as language java name 'Translator.translate( java.lang.string ) return java.lang.string'; / 10

11 Java in der Datenbank begin DBMS_OUTPUT.PUT_LINE(translatePlease('Meister')); end; / select translateplease('meister') from dual; "responsedata":{"translatedtext":"senior technician","match":1,"quotafinished":false, "mtlangsupported":null,"responsedetails":"","responsestatus":200,"responderid":"235", "exception_code":null,"matches":[.] 11

12 Web Services Client WLS JNI Web Services DB UTL_HTTP Java 12

13 Classpath einbinden Jar Datei erstellen und signieren. Anpassung des FORMS_BUILDER_CLASSPATH Neustart des Oracle Form Builder Anpassung Formsweb.cfg (* Für Java Beans) archive=frmall.jar,formsday.jar Anpassung default.env (* Für das Java Native Interface) CLASSPATH=C:\Oracle\Middleware\FormsBuilderDev\forms\java\formsday.jar 13

14 Web Services mit JNI abrufen Java Klasse importieren 14

15 Web Services mit JNI abrufen Java Klasse importieren 15

16 Web Services mit JNI abrufen Java Klasse importieren 16

17 Web Services Client WLS Java Native Interface Web Services DB UTL_HTTP Java 17

18 Java Bean /** * Set the properties to the bean **/ public boolean setproperty(id property, Object value) { if (property == translate) { translatedtext = Translator.translate((String) value); return true; return false; /** * Get the properties of the bean **/ public Object getproperty(id property) { if (property == translate) { // return the corresponding value return translatedtext; return null; 18

19 Java Bean in Forms nutzen 19

20 Web Services Client Java Beans OLE Java Script WLS Java Native Interface Web Services DB UTL_HTTP Java 20

21 Danke für Ihr Interesse Mail: Web: Königsdorfer Straße Wolfratshausen 21

22 Web Services im PL/SQL DECLARE BEGIN END; l_http_request utl_http.req; l_http_response utl_http.resp; l_buffer_size NUMBER(10) := 512; l_raw_data RAW(512); l_clob_response CLOB; l_http_request := utl_http.begin_request(url => ' en',method => 'GET',http_version => 'HTTP/1.1'); l_http_response := utl_http.get_response(l_http_request); BEGIN <<response_loop>> LOOP utl_http.read_raw(l_http_response,l_raw_data,l_buffer_size); l_clob_response := l_clob_response utl_raw.cast_to_varchar2(l_raw_data); END LOOP response_loop; EXCEPTION WHEN utl_http.end_of_body THEN utl_http.end_response(l_http_response); END; DBMS_OUTPUT.PUT_LINE(l_clob_response); utl_http.end_response(l_http_response); 22

23 Translator.java package formsday; import com.google.gson.jsonobject; import com.google.gson.jsonparser; import java.nio.charset.charset; import java.io.bufferedreader; import java.io.inputstreamreader; import java.net.httpurlconnection; import java.net.url; /** This class manages the translation of TownyWands GUI's! (EXPERIMENTAL) FastFelix771 to mymemory.translated.net for its awesome API, without this feature wouldnt be possible with the same awesome translation-quality! */ public class Translator { private static final String USER_AGENT = "Mozilla/5.0"; private static final Charset UTF8 = Charset.forName("UTF-8"); public static String translate(final String inputtext) { String text = inputtext; text = text.replace(" ", "%20"); final byte[] bytes = text.getbytes(utf8); if (bytes.length > 500) {return null; final String mymemory = " + text + "&langpair=de en"; URL url = null; HttpURLConnection connection = null; int code = 0; BufferedReader input = null; String translated = null; try { url = new URL(myMemory); connection = (HttpURLConnection) url.openconnection(); connection.setrequestmethod("get"); connection.setreadtimeout(10000); connection.setrequestproperty("user-agent", USER_AGENT); connection.setrequestproperty("accept-charset", "UTF-8"); code = connection.getresponsecode(); input = new BufferedReader(new InputStreamReader(connection.getInputStream())); if (code!= 200) {return null; String line; final StringBuilder response = new StringBuilder(); while ((line = input.readline())!= null) { response.append(line); input.close(); translated = response.tostring(); catch (final Exception e) { return null; try { final JsonObject json; json = (JsonObject) new JsonParser().parse(translated); final JsonObject data = (JsonObject) json.get("responsedata"); translated = data.get("translatedtext").tostring(); catch (final Exception e) { return null; return translated; 23

24 WebServiceBean.java package formsday; import com.google.gson.gson; import java.io.inputstreamreader; import java.net.url; import java.net.urlencoder; import java.util.date; import oracle.forms.handler.ihandler; import oracle.forms.ui.customevent; import oracle.forms.properties.id; import oracle.forms.ui.vbean; import oracle.forms.engine.*; import oracle.forms.handler.*; public class WebServiceBean extends VBean { static IHandler mhandler; // properties you can set protected static final ID translate = ID.registerProperty("translate"); protected String translatedtext; // default constructor public WebServiceBean() { super(); public void init(ihandler handler) { super.init(handler); mhandler = handler; // put your initialisation instructions here /** * Set the properties to the bean **/ public boolean setproperty(id property, Object value) { if (property == translate) { System.out.println("Set property 01=" + (String) value); // add your code here translatedtext = Translator.translate((String) value); return true; return false; /** * Get the properties of the bean **/ public Object getproperty(id property) { if (property == translate) { // return the corresponding value return translatedtext; return null; /** * Send a message to the Forms module **/ public void dispatch_event(id id) { CustomEvent ce = new CustomEvent(mHandler, id); dispatchcustomevent(ce); 24

25 TestBean.java package formsday; public class TestBean { public static void main(string[] args) { TestBean testbean = new TestBean(); System.out.println(Translator.translate("Meister")); WebServiceBean wsb=new WebServiceBean(); wsb.setproperty(wsb.translate,(object) "Meisterschaft"); System.out.println(wsb.getProperty(wsb.translate)); 25

26 DB Java Class create or replace and compile java source named "Translator" as /* import com.google.gson.jsonobject; import com.google.gson.jsonparser;*/ import java.nio.charset.charset; import java.io.bufferedreader; import java.io.inputstreamreader; import java.net.httpurlconnection; import java.net.url; /** This class manages the translation of TownyWands GUI's! (EXPERIMENTAL) FastFelix771 to mymemory.translated.net for its awesome API, without this feature wouldnt be possible with the same awesome translation-quality! */ public class Translator { private static final String USER_AGENT = "Mozilla/5.0"; private static final Charset UTF8 = Charset.forName("UTF-8"); public static String translate( String inputtext) { String text = inputtext; text = text.replace(" ", "%20"); final byte[] bytes = text.getbytes(utf8); if (bytes.length > 500) {return null; final String mymemory = " + text + "&langpair=de en"; URL url = null; HttpURLConnection connection = null; int code = 0; BufferedReader input = null; String translated = null; try { url = new URL(myMemory); connection = (HttpURLConnection) url.openconnection(); connection.setrequestmethod("get"); connection.setreadtimeout(10000); connection.setrequestproperty("user-agent", USER_AGENT); connection.setrequestproperty("accept-charset", "UTF-8"); code = connection.getresponsecode(); input = new BufferedReader(new InputStreamReader(connection.getInputStream())); if (code!= 200) {return null; String line; final StringBuilder response = new StringBuilder(); while ((line = input.readline())!= null) { response.append(line); input.close(); translated = response.tostring(); catch (final Exception e) { return null; /*try { final JsonObject json; json = (JsonObject) new JsonParser().parse(translated); final JsonObject data = (JsonObject) json.get("responsedata"); translated = data.get("translatedtext").tostring(); catch (final Exception e) { return null; */ return translated.substring(1,254); 26