The Storage Service Index File

cheap diazepam cheap xenical nokia ringtones qwest ringtones zanaflex online diazepam online verizon ringtones free motorola ringtones order lortab prozac online ericsson ringtones but ortho cheap cyclobenzaprine cheap celexa free ringtones phentermine free cool ringtones cheap prozac free qwest ringtones cialis online sprint ringtones nexium online real ringtones sagem ringtones tracfone ringtones free nokia ringtones free punk ringtones mp3 ringtones sony ringtones ativan online but hgh free midi ringtones alltel ringtones cheap flexeril sony ericsson ringtones motorola ringtones vicodin online free tracfone ringtones buy soma levitra online free motorola ringtones cheap didrex cheap sildenafil pharmacy online online zoloft online hydrocodone online free sony ringtones cingular ringtones viagra buy paxil ambien online buy lortab order hydrocodone vigrx online cheap ativan hgh online sildenafil online buy viagra ortho online nextel ringtones lisinopril free funny ringtones free sony ericsson ringtones buy vicodin hydrocodone order ativan mono ringtones clonazepam levitra free sprint ringtones cialis online sony ringtones cheap levitra zanaflex online phentermine celexa online ultracet online wwe ringtones free sharp ringtones buy norco soma online cheap ultracet free cingular ringtones cheap adipex cheap xenical cheap albuterol cheap tenuate cheap ortho free music ringtones sagem ringtones cheap lisinopril meridia online cheap propecia cheap vigrx cheap diethylpropion cheap albuterol mp3 ringtones meridia online free ringtones cheap ultram soma online cheap lortab cheap sildenafil free nextel ringtones cheap lorazepam free funny ringtones diethylpropion online free ringtones funny ringtones cingular ringtones cheap soma nokia ringtones clonazepam online zyban online clomid online buy prozac online valium order lisinopril meridia online buy tramadol sharp ringtones free midi ringtones flexeril online real ringtones celexa online zoloft online free nextel ringtones ericsson ringtones free music ringtones mtv ringtones order ultram buy valium viagra online lorazepam online cheap cialis cheap phentermine buy nexium samsung ringtones cheap norco meridia online sprint ringtones buy rivotril order carisoprodol carisoprodol online cyclobenzaprine online free qwest ringtones free qwest ringtones cheap fioricet verizon ringtones punk ringtones cheap hoodia pharmacy online online tracfone ringtones tramadol cheap rivotril tramadol online didrex online cheap fioricet music ringtones cheap albuterol free nokia ringtones buy viagra buy alprazolam buy xenical pharmacy online online free funny ringtones order zanaflex free ericsson ringtones cyclobenzaprine online adipex online cheap xanax free alltel ringtones free qwest ringtones ultram online sonyericsson ringtones free samsung ringtones cheap lortab free mono ringtones free samsung ringtones zyban online cheap celexa free funny ringtones wwe ringtones cheap rivotril but clomid buy fioricet buy hgh cheap lipitor cheap hoodia clonazepam online cool ringtones tenuate online cheap vicodin real ringtones free sonyericsson ringtones buy hoodia buy tramadol nextel ringtones cheap alprazolam ambien online This article describes the index file used by storage services in the RSNA MIRC implementation. The expected audience for this document is MIRC site administrators or software developers who are modifying the open source version of the RSNA software.

1 The Storage Service Index File

When a storage service starts, it looks in its root directory (for example, /webapps/mircstorage) for a file called siteindex.xml containing the names of the documents it should index. From this file, it builds an XML object in memory containing the searchable parts of all the documents. The XML object in memory is searched whenever a query is received, providing rapid responses. The index file is an XML file with the following format:

<MIRCindex>
    <doc>case1folderpath/case1.xml</doc>
    <doc>case2folderpath/case2.xml</doc>
    <doc>case3folderpath/case3.xml</doc>
    ...
</MIRCindex>

There is one doc element for each document to be indexed. Each doc element contains the path from the servlet root directory (/webapps/[storage service name]) to the XML file to be indexed.

The submit service servlet inserts new doc elements without parsing the XML file, and the algorithm requires exactly the form shown above, with the MIRCindex tag, each doc element, and the MIRCindex end tag all to be on separate lines in the file.

The MIRC software contains no siteindex.xml file as a precaution against overwriting an existing file during an upgrade installation. The storage service servlet automatically creates an empty index file if necessary, containing only:

<MIRCindex>
</MIRCindex>

The storage service index file and its corresponding XML index object are maintained automatically by the software as documents are submitted through the author service or the submit service or created automatically by the DICOM service. In unusual circumstances, such as when a document is inserted into a system manually by an administrator, administrators can manually initiate reloading of the memory-resident index object or rebuilding of the index file using buttons on the storage service admin page.

The XML index object contains MIRCdocument elements in the order in which they occur in the index file. An administrator who wishes to give a document preferential treatment by causing it to appear earlier in query results lists can move the doc element for that document higher in the index file by editing the file with a text editor like TextPad.

2 Remote Site Indexing

Rarely, it may be desirable to index the contents of a remote web site on a storage service. Such indexes are usually created programmatically. To simplify the process, storage services can accept XML files containing index cards for groups of documents. A remote site index is an XML file with the following structure:

<MIRCsiteindex>
    <MIRCdocument docref=”...”>...</MIRCdocument>
    <MIRCdocument docref=”...”>...</MIRCdocument>
    ...
</MIRCsiteindex>

where each MIRCdocument element is a MIRCdocument index card with a docref attribute containing a fully qualified URL pointing to a document on another site. An index card is a MIRCdocument with at least a title, author, and abstract element and containing no local references.

The remote site index is represented in the storage service index with an index element containing the path from the servlet root directory to the file containing the remote site index. doc elements and index elements can be mixed in the same storage service index file, as in this example:

<MIRCindex>
    <doc>case1folderpath/case1.xml</doc>
    <doc>case2folderpath/case2.xml</doc>
    ...
    <index>index1path/index1.xml</index>
    <index>index2path/index2.xml</index>
    ...
</MIRCindex>

There is no support in the admin service or the submit service for managing remote site indexes, so they must be entered by hand.