X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=doc%2Frecord_transform.xml;h=c490d56d1d1b322161e2a9b504c931c10834b095;hb=032466d946405f08353f42c0049b523cfd1f4127;hp=6a96ec6469a4579360f78fe90533fe73c4624a9e;hpb=390f1824be469868bb060cdacd2d48aa184441a9;p=metaproxy-moved-to-github.git diff --git a/doc/record_transform.xml b/doc/record_transform.xml index 6a96ec6..c490d56 100644 --- a/doc/record_transform.xml +++ b/doc/record_transform.xml @@ -1,4 +1,4 @@ - @@ -15,100 +15,106 @@ 3mp Metaproxy Module - + record_transform - Metaproxy Module that performs Z39.50 presentResponse record transformations + Metaproxy Module that performs record transformations DESCRIPTION - This filter acts only on Z3950 present requests, and let all - other types of packages and requests pass untouched. It's use is - twofold: blocking Z3950 present requests, which the backend - server does not understand and can not honor, and transforming - the present syntax and elementset name according to the rules - specified, to fetch only existing record formats, and transform - them on the fly to requested record syntaxes. - + This filter acts on Z39.50 present requests and Z39.50 search requests, + and let all other types of packages and requests pass untouched. Its + use is twofold: blocking Z39.50 present/search requests that the backend + server does not understand or can not honor, and transforming the present + syntax and elementset name according to the rules specified, to fetch + only existing record formats, and transform them on the fly to requested + record syntaxes. + - The allowed record present syntax and + The allowed record present syntax and element name are described in multiple - <retrieval> elements inside the + <retrieval> elements inside the <retrievalinfo> element. The syntax attribute is mandatory, but the name attribute - may be omitted, in which case any + may be omitted, in which case any element name is accepted. An additional identifier attribute can be added to explicitly - describe the Z3950 identifier string. - - - Record transformations are invoked when the optional attributes - backendsyntax and backendname - as well as the <convert> element are specified. - Record conversions come in two flavors: - <marc> binary conversions between different - binary MARC formats and MarcXML formats, and - <xslt> stylesheet transformations performed - on any kind of XML records. These conversions can be stacked in any - order, and are performed linearly in file order. + describe the Z39.50 identifier string. - The binary MARC record transformations - <marc> are defined using the following - attributes: inputformat, outputformat, - inputcharset and outputcharset. + The <retrieval> element and the content + is described in the + Retrieval Facility section + of the YAZ manual. - XML <xslt> transformation instructions - accept only one mandatory stylesheet attribute, - which is either an absolute path, or a relative path from the - working directory of metaproxy to the location - of the requested XSLT stylesheet. + From Metaproxy version 1.3.26 and onwards the backend conversion ma + also use USEMARCON. + If USEMARCON is enabled, the backend may include + a usemarcon element with two attributes: + stage1 and stage2 that points to + conversion files as interpreted by USEMARCON. One or both must be given. - + + SCHEMA + + Schema is in two parts.. One for the filter itself and one for the + retrieval info. + + + + + + + + + EXAMPLES A typical configuration looks like this: - - - - - - + + + + - + + - - - - + + + + + - - - - - + + + + + + + + - + ]]> - - + + SEE ALSO @@ -117,21 +123,13 @@ - + ©right;