{"id":90484,"date":"2020-08-01T13:42:39","date_gmt":"2020-08-01T11:42:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-jpype-1-0-2-biblioteki-dlya-dostupa-k-java-klassam-iz-python"},"modified":"2020-08-01T13:42:39","modified_gmt":"2020-08-01T11:42:39","slug":"obnovlenie-jpype-1-0-2-biblioteki-dlya-dostupa-k-java-klassam-iz-python","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/obnovlenie-jpype-1-0-2-biblioteki-dlya-dostupa-k-java-klassam-iz-python","title":{"rendered":"JPype 1.0.2 uuendus, raamatukogu Java klasside juurde p\u00e4\u00e4semiseks Pythonist.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/jpype-project\/jpype\/releases\/tag\/1.0.2\">Saadaval<\/a><\/noindex> uus versioon vahelehest <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/jpype-project\/jpype\/\">JPype 1.0.2<\/a><\/noindex>, mis v\u00f5imaldab Python-i rakendustel t\u00e4ielikku juurdep\u00e4\u00e4su Java keele klasside libraritele. JPype abil saab Pythonis kasutada Java-spetsiifilisi teeke, luues h\u00fcbriidrakendusi, mis \u00fchendavad Java ja Python koodi. Erinevalt Jythonist saavutatakse Java integreerimine mitte JVM-i jaoks Python variandi loomise kaudu, vaid kahe virtuaalmasina tasandil, kasutades jagatud m\u00e4lu. Pakutud l\u00e4henemine v\u00f5imaldab mitte ainult head j\u00f5udlust saavutada, vaid annab ka juurdep\u00e4\u00e4su k\u00f5igile CPython ja Java teekidele. Projekti kood <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/jpype-project\/jpype\/\">GNU \u00dcldine Avaliku litsentsi alusel.<\/a><\/noindex> ainekood on litsentsitud Apache 2.0 all.<\/p>\n<p>Peamised muudatused:<\/p>\n<ul>\n<li class=\"l\"> Meetodite kutsumist on lisatud cache, mis aitab v\u00e4ltida \u00fclekoormuste lahendamist, v\u00e4hendades seel\u00e4bi meetodite lahendamise j\u00f5udlusele avaldatavat m\u00f5ju, eriti kui sama \u00fclekormust kutsutakse mitu korda, n\u00e4iteks ts\u00fcklite k\u00e4igus.\n<li class=\"l\"> Neljast sada korda, s\u00f5ltuvalt andmet\u00fc\u00fcbist, on kiirendatud loendite, tupikute ja puhverdatud andmete edastamine Java primitiivmasse. Muundamine kasutab optimeeritud puhvrite t\u00f6\u00f6tlemist m\u00e4lus, mitte Sequence API-d. Kui Python-puhver esineb, kontrollitakse muundamiseks ainult esimest elementi, kuna andmebuffersid on \u00fchtekuuluvad.\n<li class=\"l\"> Shutdown-protsesside k\u00e4sitlemine (rakendatud juba JPype 1.0.0-s, kuid j\u00e4i muudatuste loendis t\u00e4helepanuta). JPype kutsub n\u00fc\u00fcd JVM-i shutdown-protseduuri, mis p\u00fc\u00fcab v\u00e4lja minna &#171;gracefully&#187; re\u017eiimis. See toob kaasa mitmeid k\u00e4itumise muudatusi. Mittefondi niidid (proxy call) v\u00f5ivad n\u00fc\u00fcd JVM-i avatud hoida kuni nende l\u00f5petamiseni. Proxy-kutsed k\u00e4sitlevad shutdown'i kuni kutse on l\u00f5petatud, kuid saavad katkestamise teate. Failid suletakse korrektselt ja andmed kirjutatakse ketta (flush), kui niidid t\u00f6\u00f6tlevad erandeid \u00f5igesti. Ressursside puhastamise ja finaliseerimise hook'id viiakse ellu. Niidide genereerimisel kutsutakse esile AtExit-hook'id. Daemon v\u00f5imaldab automaatset niitide \u00fchendamist, kui JVM-i kasutatakse Pythonist. Vigakood, mis ei suuda niidi puhastamist \u00f5igesti k\u00e4sitleda, v\u00f5ib t\u00f5en\u00e4oliselt kinni j\u00e4\u00e4da shutdown'i t\u00e4itmisel. T\u00e4iendav dokumentatsioon on kasutusjuhendis.\n<li class=\"l\"> Throwable'i pakend sai Object'i pakendi asemel eeldatava tulemuse, mis viis kummaliste muundamisteni Python'i klassidest.\n<li class=\"l\"> T\u00e4psem m\u00f5istmine importimise s\u00fcsteemis, mis viib vea &#8216;&#187;jname&#187; not found&#8217; kuvamiseni.\n<li class=\"l\"> Korrigeeritud &#171;^C&#187; edastamine KeyboardInterrupt-ile.\n<li class=\"l\"> Parandatud probleem Python 3.5.3-s. PySlice_Unpack on sisse viidud hilisemasse patch-vabastusse (3.5.4) ja seda ei tohiks kasutada.\n<li class=\"l\"> Lahendatud viga numpy.linalg.inv, mis p\u00f5hjustas s\u00fcsteemi t\u00f5rke. Probleem tuvastati JVM-i ja teatud numpy variantide vahelise l\u00f5imekoostoime t\u00f5ttu. Soovitatav lahendus on kutsuda numpy.linalg.inv enne JVM-i k\u00e4ivitamist.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53469\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438 JPype 1.0.2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u043f\u043e\u043b\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f Python-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c \u043a\u043b\u0430\u0441\u0441\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Java. \u041f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 JPype \u0438\u0437 Python \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0435 \u0434\u043b\u044f Java \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438, \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u044f \u0433\u0438\u0431\u0440\u0438\u0434\u043d\u044b\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f, \u0441\u043e\u0447\u0435\u0442\u0430\u044e\u0449\u0438\u0435 \u043a\u043e\u0434 \u043d\u0430 Java \u0438 Python. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 Jython, \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044f \u0441 Java \u0434\u043e\u0441\u0442\u0438\u0433\u0430\u0435\u0442\u0441\u044f \u043d\u0435 \u0447\u0435\u0440\u0435\u0437 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 Python \u0434\u043b\u044f JVM, \u0430 \u0447\u0435\u0440\u0435\u0437 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-90484","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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