BaseX-Talk December 2013

basex-talk@mailman.uni-konstanz.de

54 participants
77 discussions

Memory usage !!
by John Best 30 Dec '13

30 Dec '13

Dear Team, I have developed and application using Eclipse RCP. I am using BaseX 7.6 to store XML data. Yesterday, when I was testing the application with various kind of searches, the response was quite slow as I went ahead with more and more searches. To my surprise, I notices the in Windows Task Manager, the javaw.exe was consuming more memory... Then I restarted the laptop and did this procedure again Following is the memory usage - 1 - 84920 2 - 101584 3 - 108224 4 - 109284 5 - 111768 6 - 128468 7 - 160616 8 - 180212 9 - 198313 10 - 212592 Why this is so ? and how can I reduce this memory usage by javaw.exe ? -- Have a nice day JBest

2 1

[ANN] Higher-Order XQuery Modules
by Leonard Wörteler 30 Dec '13

30 Dec '13

Hello everyone, I want to announce the small collection of XQuery 3.0 modules [1] that I've written over the last few weeks. I use them mostly for testing the BaseX optimizer, but there should be no BaseX-specific XQuery code in the repository. I have implemented some purely functional data structures including maps based on AVL and Red-Black Trees that both support arbitrary values as keys and efficient deletion. Some documentation can be found under each module's namespace URI or under [2]. Constructive feedback of any kind (suggestions, bug reports, pull requests) would be much appreciated. Hope you like it, cheers, Leo [1] https://github.com/LeoWoerteler/xq-modules/ [2] http://www.woerteler.de/xquery/modules/

2 3

INLINER : bug ?
by jean-marc Mercier 30 Dec '13

30 Dec '13

Hi Everybody @Leo, there might be a bug in the BaseX INLINER (I am currently profiling your module https://github.com/LeoWoerteler/xq-modules/). To reproduce it : - use the 3 files attached. - Edit baseX config file .baseX, set the following Local options : # Local Options INLINELIMIT = 5 - launch the XQUERY file MapProfiler.xquery. With these settings, the profile function works finely. Then - Edit baseX config file .baseX, set the following Local options : # Local Options INLINELIMIT = 6 With these settings, I am raising a [XPTY0004] Single item expected error. Cheers, Jean-Marc

2 2

what's bad basex ? slow insert doc after continuesly add/insert, lost db access..
by easy 27 Dec '13

27 Dec '13

Hi,all, after continuesly insert/add doc to basex db up to 80000 file with restxq web service, there are some nonsens result: very slow for insert/add doc to db. some time can't list db in basex cmd line. after restart ,it's ok. and this will cause the xquery can't work like collection('db/path')//.., say something like: can't found resource ..../webapp/db . who can give some reason or what 's wrong with me? Thanks. -- 此致 easy 莫愁前路无知己，天下谁人不识君。

1 0

restxq with html form get
by e-letter 27 Dec '13

27 Dec '13

Readers, A new file is trying to be created, with a html form using the element 'select'. The objective is to select from a menu and return a new html page after processing of the xquery function. >From the web page about http requests (http://docs.basex.org/wiki/RESTXQ#HTTP_Methods), where is the content type to be written in the xqm file? (:~ : This module contains some basic examples for RESTXQ annotations : @author BaseX Team :) module namespace page = 'http://basex.org/modules/web-page'; (:~ : This function generates the welcome page. : @return HTML page :) declare %rest:path("") %output:method("xhtml") %output:omit-xml-declaration("no") %output:doctype-public("-//W3C//DTD XHTML Basic 1.1//EN") %output:doctype-system("http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd") function page:start() as element(Q{http://www.w3.org/1999/xhtml}html) { <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>BaseX HTTP Services</title> <link rel="stylesheet" type="text/css" href="static/style.css"/> </head> <body> <h3>Example 2</h3> <p>The next example presents how form data is processed via RESTXQ and the POST method:</p> <form method='get' name='databasequeryform' > <p> <select name='booktitle' > <option> Everyday Italian </option> <option> Harry Potter </option> </select> <input type="submit" value='send' /> </p> </form> </body> </html> }; declare %rest:path("/form") %rest:GET function page:post() { let $x := fn:doc("xmldatabasefile.xml")/bookstore/book/title[contains(text(),'Everyday Italian')]/parent::* return $x }; declare %rest:path("/put") %rest:PUT("{$body}") function page:put($body) { || $body }; Extract of xml file: <?xml version="1.0" encoding="utf-8"?>  <?xml-stylesheet type='text/xsl" href="xstylesheetexample.xslt" ?> <bookstore> <book category="COOKING"> <title lang="en" > Everyday Italian </title> <author>Giada De Laurentiis</author> <year>2005</year> <price>30.00</price> </book> ...

1 0

Fwd: 7.7.x UI freeze
by Lukas Kircher 26 Dec '13

26 Dec '13

Hi Pascal, databases created with 7.8 cannot be opened by older versions of BaseX (the last change came with the upgrade from 7.7.3 to 7.8). I can't guarantee you that 7.7.2/7.7.3/7.8 are fully backward-compatible, but down to version 7.6 this should be the case. Regarding the GUI freezes[1]: I never use the .jar file, yet I experience the freeze from time to time (I always start with -Xmx512). Using -Xmx32m on purpose still doesn't reproduce the issue. In fact, I wasn't able to reproduce it at all during the last days ... we'll keep an eye on that. Cheers, Lukas [1] https://github.com/BaseXdb/basex/issues/835 On Tue, Dec 24, 2013 at 4:57 AM, Pascal Heus <pascal.heus(a)gmail.com> wrote: > BTW, 7.7.2/7.7.3/7.8 DB format seem to be backward compatible with > earlier releases (like 7.6). Can you confirm? Also, is 7.8 format different > than 7.7.x? > thanks > *P > > > On 12/23/13 11:18 AM, Lukas Kircher wrote: > > Hi Pascal, > > Recently upgraded to 7.7.2 from 7.6 and getting UI freeze on MacOSX when >> I try to open existing databases. > > > I also experienced this issue once or twice but wasn't exactly able to > reproduce it > on purpose. Your report simply tells me that there's indeed an issue with > 7.7.2/ > 7.7.3 and we should take a closer look at it - thanks for the report. Do > you also > experience the same freezes with the latest stable snapshot (7.8)? > > >> When opening from the interactie >> command prompt, I get a message that the format has changed and I need >> to rebuild indexes. > > > I would serialize the database content to disk with 7.6 and create new > databases from the exported files. Between version 7.7.2/7.7.3/7.8 the > database > format changes again - another reason to consider giving version 7.8 a go. > > Sorry for not being of too much help here ... > > Cheers, > Lukas > > >

1 0

Help, urgen! db store file very slowly after add 80000 files.
by easy 25 Dec '13

25 Dec '13

hi,all , anyone have some experience on continueously add files to db with restxq web service interface.? I have a restxq service to add post xml data to db, in db/path1/path2/{pid}.xml. at begining, its very fast, after to 90000, slowly ,bout 2 files per second . how to increase the speed? autoindex is off. -- 此致 easy 莫愁前路无知己，天下谁人不识君。

1 0

Proximity using ft:search ?
by John Best 25 Dec '13

25 Dec '13

Hi Team, When will I be able to use proximity searches using the ft:search() ? -- Have a nice day JBest

2 1

Migrating from 7.3 to 7.7.2
by William Sandri 24 Dec '13

24 Dec '13

Hello, I would like to migrate my current code from BaseX 7.3 to the latest version, but when I compile with the new library I get errors at Context.pin(...) and Context.unpin(...). I have some difficulties in finding out how to change the "pin" management. If you don't mind, I'd post two of my class's methods and I would ask you to give me some instructions how to update them. Thank you William public synchronized Data openOrCreateContainer( Context ctx, final String path) throws IOException { final IO io = IO.get("file:/"+ getDataDir().getAbsolutePath()); final String name = path; // check if database is already opened *final Data data = ctx.pin(name);* if(data != null) { final IO in = data.meta.path; if(in.eq(io) && io.timeStamp() == in.timeStamp()) { // check permissions if(ctx.perm(Perm.READ, data.meta)) return data; throw new IOException(Util.info(Text.PERM_REQUIRED_X, Perm.READ)); } *ctx.unpin(data);* } // if found, an existing database is opened final Data ret; if (ctx.mprop.dbexists(name)) { ret = Open.open(name, ctx); ctx.openDB(ret); } else { new CreateDB(name).execute(ctx); ret = ctx.data(); ctx.openDB(ret); } buildIndex(); return ret; } public boolean loadDocumentFromInputStream(InputStream stream, String docName) throws EtlException { Data cont = null; try { String containerName = docName; cont = openOrCreateContainer(CONTEXT, containerName); IntList docs = cont.resources.docs(docName); for(final int pre : docs.toArray()) { cont.delete(pre); } Add cmd = new Add(docName); cmd.setInput(stream); cmd.execute(CONTEXT); buildIndex(); return true; } catch (Exception e) { log.error(e); throw new EtlException(e); } finally { if (cont != null) { *CONTEXT.unpin(cont);* cont.close(); } } } -- William Sandri Business Process Engineering S.r.l. 38068 Rovereto (TN) Via Per Marco 12/A tel: +39 0464 07 60 23 fax: +39 0464 07 20 09 web phone: sip:wsandri@mail.bpeng.com web site:http://www.bpeng.com email:wsandri@bpeng.com

2 3

xml to json.
by easy 24 Dec '13

24 Dec '13

hi,sir, I want serialize my xml to json , the xml is : ----------------------- <BasicDataset xmlns="urn:sc-wst:v1"> <DataSet code="HSDA00.01" codeSystem="WS365-2011" codeSystemName="城乡居民健康档案基本数据集" displayName="个人基本信息数据集"> <HDSN00.01.013 dataelementName="文档编号" value="8DF51E49-CEEA-4B3A-A20FB862C802DFC7"/> <HDSN00.01.014 dataelementName="文档生成日期" value="20131223"/> <HDSN00.01.015 dataelementName="参与人电话" value="18281039963"/> <HDSN00.01.016 dataelementName="参与人姓名" value="寇欢欢"/> <HDSN00.01.001 dataelementName="记录日期" value="20131019"/> <HDSN00.01.002 dataelementName="记录者姓名" value="范书琼"/> <HDSN00.01.003 dataelementName="记录人编号" value="510622197409046024"/> <HDSN00.01.004 dataelementName="记录人联系电话" value=""/> <HDSN00.01.018 dataelementName="社保号" value="无"/> <HDSD00.01.001 dataelementName="城乡居民健康档案编号" value="51068311920600239"/> <HDSD00.01.003 code="2" codeSystem="2.16.156.10011.2.3.3.4" codeSystemName="生理性别代码表(GB/T 2261.1)" dataelementName="性别代码" displayName="女"/> <HDSD00.01.004 dataelementName="出生日期" value="20121030"/> <HDSD00.01.005 code="01" codeSystem="2.16.156.10011.2.3.1.1" codeSystemName="身份证件类别代码表" dataelementName="身份证件类别代码" displayName="居民身份证"/> <HDSD00.01.006 dataelementName="身份证件号码" value="无"/> <HDSD00.01.376 dataelementName="户籍地址-省(自治区、直辖市)" value="四川省"/> <HDSD00.01.377 dataelementName="户籍地址-市(地区、州)" value="德阳市"/> <HDSD00.01.378 dataelementName="户籍地址-县(区)" value="绵竹市"/> <HDSD00.01.379 dataelementName="户籍地址-乡（镇、街道办事处）" value="富新镇"/> <HDSD00.01.380 dataelementName="户籍地址-村（街、路、弄等）" value="九胜村"/> <HDSD00.01.381 dataelementName="户籍地址-门牌号码" value="02组"/> <HDSD00.01.424 dataelementName="邮政编码" value="510683119"/> <HDSD00.01.007 dataelementName="工作单位名称" value=""/> <HDSD00.01.008 dataelementName="本人电话号码" value="无"/> <HDSD00.01.009 dataelementName="联系人姓名" value="寇欢欢"/> <HDSD00.01.010 dataelementName="联系人电话号码" value="18281039963"/> <HDSD00.01.011 dataelementName="常住地址户籍标志" value="true"/> <HDSD00.01.012 code="01" codeSystem="2.16.156.10011.2.3.3.3" codeSystemName="民族代码表(GB 3304)" dataelementName="民族" displayName="汉族"/> <HDSD00.01.013 code="5" codeSystem="2.16.156.10011.2.3.1.85" codeSystemName="ABO血型代码表" dataelementName="ABO血型代码" displayName="不详"/> <HDSD00.01.014 code="3" dataelementName="Rh血型代码" displayName="不详"/> <HDSD00.01.015 code="90" codeSystem="2.16.156.10011.2.3.3.6" codeSystemName="学历代码表（GB/T 4568）" dataelementName="学历代码" displayName="其他"/> <HDSD00.01.016 code="Y" codeSystem="2.16.156.10011.2.3.3.7" codeSystemName="职业类别代码表" dataelementName="职业类别代码" displayName=""/> <HDSD00.01.017 code="10" codeSystem="2.16.156.10011.2.3.3.5" codeSystemName="婚姻状况代码表" dataelementName="婚姻状况代码" displayName="未婚"/> <HDSD00.01.018 code="04" codeSystem="2.16.156.10011.2.3.1.197" codeSystemName="医疗费用来源类别代码表" dataelementName="医疗费用支付方式代码" displayName="公务员医疗补助"/> <HDSD00.01.019 dataelementName="药物过敏史标志" value="true"/> <HDSD00.01.01> <row> <HDSD00.01.020 code="" codeSystem="2.16.156.10011.2.3.1.137" codeSystemName="过敏源代码表" dataelementName="药物过敏源" displayName=""/> </row> </HDSD00.01.01> <HDSD00.01.02> <row> <HDSD00.01.021 code="1" codeSystem="2.16.156.10011.2.3.1.33" codeSystemName="环境危险因素暴露类别代码表" dataelementName="环境危险因素暴露类别代码" displayName=""/> </row> </HDSD00.01.02> </DataSet> </BasicDataset> --------- want the result as : ------------- { "BasicDataset": { "-xmlns": "urn:sc-wst:v1", "DataSet": { "-code": "HSDA00.01", "-codeSystem": "WS365-2011", "-codeSystemName": "城乡居民健康档案基本数据集", "-displayName": "个人基本信息数据集", "HDSN00.01.013": { "-dataelementName": "文档编号", "-value": "8DF51E49-CEEA-4B3A-A20FB862C802DFC7" }, "HDSN00.01.014": { "-dataelementName": "文档生成日期", "-value": "20131223" }, "HDSN00.01.015": { "-dataelementName": "参与人电话", "-value": "18281039963" }, "HDSN00.01.016": { "-dataelementName": "参与人姓名", "-value": "寇欢欢" }, "HDSN00.01.001": { "-dataelementName": "记录日期", "-value": "20131019" }, "HDSN00.01.002": { "-dataelementName": "记录者姓名", "-value": "范书琼" }, "HDSN00.01.003": { "-dataelementName": "记录人编号", "-value": "510622197409046024" }, "HDSN00.01.004": { "-dataelementName": "记录人联系电话" }, "HDSN00.01.018": { "-dataelementName": "社保号", "-value": "无" }, "HDSD00.01.001": { "-dataelementName": "城乡居民健康档案编号", "-value": "51068311920600239" }, "HDSD00.01.003": { "-code": "2", "-codeSystem": "2.16.156.10011.2.3.3.4", "-codeSystemName": "生理性别代码表(GB/T 2261.1)", "-dataelementName": "性别代码", "-displayName": "女" }, "HDSD00.01.004": { "-dataelementName": "出生日期", "-value": "20121030" }, "HDSD00.01.005": { "-code": "01", "-codeSystem": "2.16.156.10011.2.3.1.1", "-codeSystemName": "身份证件类别代码表", "-dataelementName": "身份证件类别代码", "-displayName": "居民身份证" }, "HDSD00.01.006": { "-dataelementName": "身份证件号码", "-value": "无" }, "HDSD00.01.376": { "-dataelementName": "户籍地址-省(自治区、直辖市)", "-value": "四川省" }, "HDSD00.01.377": { "-dataelementName": "户籍地址-市(地区、州)", "-value": "德阳市" }, "HDSD00.01.378": { "-dataelementName": "户籍地址-县(区)", "-value": "绵竹市" }, "HDSD00.01.379": { "-dataelementName": "户籍地址-乡（镇、街道办事处）", "-value": "富新镇" }, "HDSD00.01.380": { "-dataelementName": "户籍地址-村（街、路、弄等）", "-value": "九胜村" }, "HDSD00.01.381": { "-dataelementName": "户籍地址-门牌号码", "-value": "02组" }, "HDSD00.01.424": { "-dataelementName": "邮政编码", "-value": "510683119" }, "HDSD00.01.007": { "-dataelementName": "工作单位名称" }, "HDSD00.01.008": { "-dataelementName": "本人电话号码", "-value": "无" }, "HDSD00.01.009": { "-dataelementName": "联系人姓名", "-value": "寇欢欢" }, "HDSD00.01.010": { "-dataelementName": "联系人电话号码", "-value": "18281039963" }, "HDSD00.01.011": { "-dataelementName": "常住地址户籍标志", "-value": "true" }, "HDSD00.01.012": { "-code": "01", "-codeSystem": "2.16.156.10011.2.3.3.3", "-codeSystemName": "民族代码表(GB 3304)", "-dataelementName": "民族", "-displayName": "汉族" }, "HDSD00.01.013": { "-code": "5", "-codeSystem": "2.16.156.10011.2.3.1.85", "-codeSystemName": "ABO血型代码表", "-dataelementName": "ABO血型代码", "-displayName": "不详" }, "HDSD00.01.014": { "-code": "3", "-dataelementName": "Rh血型代码", "-displayName": "不详" }, "HDSD00.01.015": { "-code": "90", "-codeSystem": "2.16.156.10011.2.3.3.6", "-codeSystemName": "学历代码表（GB/T 4568）", "-dataelementName": "学历代码", "-displayName": "其他" }, "HDSD00.01.016": { "-code": "Y", "-codeSystem": "2.16.156.10011.2.3.3.7", "-codeSystemName": "职业类别代码表", "-dataelementName": "职业类别代码" }, "HDSD00.01.017": { "-code": "10", "-codeSystem": "2.16.156.10011.2.3.3.5", "-codeSystemName": "婚姻状况代码表", "-dataelementName": "婚姻状况代码", "-displayName": "未婚" }, "HDSD00.01.018": { "-code": "04", "-codeSystem": "2.16.156.10011.2.3.1.197", "-codeSystemName": "医疗费用来源类别代码表", "-dataelementName": "医疗费用支付方式代码", "-displayName": "公务员医疗补助" }, "HDSD00.01.019": { "-dataelementName": "药物过敏史标志", "-value": "true" }, "HDSD00.01.01": { "row": { "HDSD00.01.020": { "-codeSystem": "2.16.156.10011.2.3.1.137", "-codeSystemName": "过敏源代码表", "-dataelementName": "药物过敏源" } } }, "HDSD00.01.02": { "row": { "HDSD00.01.021": { "-code": "1", "-codeSystem": "2.16.156.10011.2.3.1.33", "-codeSystemName": "环境危险因素暴露类别代码表", "-dataelementName": "环境危险因素暴露类别代码" } } } } } } --------------- but basex fn:json:serialize($x,{'format':'jsonml'}) got: ------------------------ ["json", {"type":"object"}, ["BasicDataset", ["DataSet", {"code":"HSDA00.01", "codeSystem":"WS365-2011", "codeSystemName":"城乡居民健康档案基本数据集", "displayName":"个人基本信息数据集"}, ["HDSN00.01.013", {"dataelementName":"文档编号", "value":"8DF51E49-CEEA-4B3A-A20FB862C802DFC7"}], ["HDSN00.01.014", {"dataelementName":"文档生成日期", "value":"20131223"}], ["HDSN00.01.015", {"dataelementName":"参与人电话", "value":"18281039963"}], ["HDSN00.01.016", {"dataelementName":"参与人姓名", "value":"寇欢欢"}], ["HDSN00.01.001", {"dataelementName":"记录日期", "value":"20131019"}], ["HDSN00.01.002", {"dataelementName":"记录者姓名", "value":"范书琼"}], ["HDSN00.01.003", {"dataelementName":"记录人编号", "value":"510622197409046024"}], ["HDSN00.01.004", {"dataelementName":"记录人联系电话", "value":""}], ["HDSN00.01.018", {"dataelementName":"社保号", "value":"无"}], ["HDSD00.01.001", {"dataelementName":"城乡居民健康档案编号", "value":"51068311920600239"}], ["HDSD00.01.003", {"code":"2", "codeSystem":"2.16.156.10011.2.3.3.4", "codeSystemName":"生理性别代码表(GB/T 2261.1)", "dataelementName":"性别代码", "displayName":"女"}], ["HDSD00.01.004", {"dataelementName":"出生日期", "value":"20121030"}], ["HDSD00.01.005", {"code":"01", "codeSystem":"2.16.156.10011.2.3.1.1", "codeSystemName":"身份证件类别代码表", "dataelementName":"身份证件类别代码", "displayName":"居民身份证"}], ["HDSD00.01.006", {"dataelementName":"身份证件号码", "value":"无"}], ["HDSD00.01.376", {"dataelementName":"户籍地址-省(自治区、直辖市)", "value":"四川省"}], ["HDSD00.01.377", {"dataelementName":"户籍地址-市(地区、州)", "value":"德阳市"}], ["HDSD00.01.378", {"dataelementName":"户籍地址-县(区)", "value":"绵竹市"}], ["HDSD00.01.379", {"dataelementName":"户籍地址-乡（镇、街道办事处）", "value":"富新镇"}], ["HDSD00.01.380", {"dataelementName":"户籍地址-村（街、路、弄等）", "value":"九胜村"}], ["HDSD00.01.381", {"dataelementName":"户籍地址-门牌号码", "value":"02组"}], ["HDSD00.01.424", {"dataelementName":"邮政编码", "value":"510683119"}], ["HDSD00.01.007", {"dataelementName":"工作单位名称", "value":""}], ["HDSD00.01.008", {"dataelementName":"本人电话号码", "value":"无"}], ["HDSD00.01.009", {"dataelementName":"联系人姓名", "value":"寇欢欢"}], ["HDSD00.01.010", {"dataelementName":"联系人电话号码", "value":"18281039963"}], ["HDSD00.01.011", {"dataelementName":"常住地址户籍标志", "value":"true"}], ["HDSD00.01.012", {"code":"01", "codeSystem":"2.16.156.10011.2.3.3.3", "codeSystemName":"民族代码表(GB 3304)", "dataelementName":"民族", "displayName":"汉族"}], ["HDSD00.01.013", {"code":"5", "codeSystem":"2.16.156.10011.2.3.1.85", "codeSystemName":"ABO血型代码表", "dataelementName":"ABO血型代码", "displayName":"不详"}], ["HDSD00.01.014", {"code":"3", "dataelementName":"Rh血型代码", "displayName":"不详"}], ["HDSD00.01.015", {"code":"90", "codeSystem":"2.16.156.10011.2.3.3.6", "codeSystemName":"学历代码表（GB/T 4568）", "dataelementName":"学历代码", "displayName":"其他"}], ["HDSD00.01.016", {"code":"Y", "codeSystem":"2.16.156.10011.2.3.3.7", "codeSystemName":"职业类别代码表", "dataelementName":"职业类别代码", "displayName":""}], ["HDSD00.01.017", {"code":"10", "codeSystem":"2.16.156.10011.2.3.3.5", "codeSystemName":"婚姻状况代码表", "dataelementName":"婚姻状况代码", "displayName":"未婚"}], ["HDSD00.01.018", {"code":"04", "codeSystem":"2.16.156.10011.2.3.1.197", "codeSystemName":"医疗费用来源类别代码表", "dataelementName":"医疗费用支付方式代码", "displayName":"公务员医疗补助"}], ["HDSD00.01.019", {"dataelementName":"药物过敏史标志", "value":"true"}], ["HDSD00.01.01", ["row", ["HDSD00.01.020", {"code":"", "codeSystem":"2.16.156.10011.2.3.1.137", "codeSystemName":"过敏源代码表", "dataelementName":"药物过敏源", "displayName":""}]]], ["HDSD00.01.02", ["row", ["HDSD00.01.021", {"code":"1", "codeSystem":"2.16.156.10011.2.3.1.33", "codeSystemName":"环境危险因素暴露类别代码表", "dataelementName":"环境危险因素暴露类别代码", "displayName":""}]]]]]] --------------- how to got this ? -- 此致 easy 莫愁前路无知己，天下谁人不识君。

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BaseX-Talk December 2013