Revision 3143
Added by berkley almost 18 years ago
| src/edu/ucsb/nceas/metacat/MetaCatServlet.java | ||
|---|---|---|
| 106 | 106 |
* action=getaccesscontrol -- retrieve acl info for Metacat document <br> |
| 107 | 107 |
* action=getalldocids -- retrieves a list of all docids registered with the system<br> |
| 108 | 108 |
* scope --can limit the query by the scope of the id |
| 109 |
* action=isregistered -- checks to see if the provided docid is registered<br> |
|
| 110 |
* docid --the docid to check |
|
| 109 | 111 |
* action=getdoctypes -- retrieve all doctypes (publicID) <br> |
| 110 | 112 |
* action=getdtdschema -- retrieve a DTD or Schema file <br> |
| 111 | 113 |
* action=getdataguide -- retrieve a Data Guide <br> |
| ... | ... | |
| 705 | 707 |
PrintWriter out = response.getWriter(); |
| 706 | 708 |
handleGetAllDocidsAction(out, params, response); |
| 707 | 709 |
out.close(); |
| 710 |
} else if (action.equals("isregistered")) {
|
|
| 711 |
PrintWriter out = response.getWriter(); |
|
| 712 |
handleIdIsRegisteredAction(out, params, response); |
|
| 713 |
out.close(); |
|
| 708 | 714 |
} else if (action.equals("getrevisionanddoctype")) {
|
| 709 | 715 |
PrintWriter out = response.getWriter(); |
| 710 | 716 |
handleGetRevisionAndDocTypeAction(out, params); |
| ... | ... | |
| 2502 | 2508 |
|
| 2503 | 2509 |
} |
| 2504 | 2510 |
|
| 2511 |
private void handleIdIsRegisteredAction(PrintWriter out, Hashtable params, |
|
| 2512 |
HttpServletResponse response) |
|
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{
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|
| 2514 |
String id = null; |
|
| 2515 |
boolean exists = false; |
|
| 2516 |
if(params.get("docid") != null)
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|
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{
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|
| 2518 |
id = ((String[]) params.get("docid"))[0];
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|
| 2519 |
} |
|
| 2520 |
|
|
| 2521 |
try {
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|
| 2522 |
DBUtil dbutil = new DBUtil(); |
|
| 2523 |
exists = dbutil.idExists(id); |
|
| 2524 |
} catch (Exception e) {
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|
| 2525 |
out.println("<?xml version=\"1.0\"?>");
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|
| 2526 |
out.println("<error>");
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| 2527 |
out.println(e.getMessage()); |
|
| 2528 |
out.println("</error>");
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|
| 2529 |
} |
|
| 2530 |
|
|
| 2531 |
out.println("<?xml version=\"1.0\"?>");
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| 2532 |
out.println("<isRegistered>");
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|
| 2533 |
out.println("<docid>" + id + "</docid>");
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out.println("<exists>" + exists + "</exists>");
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out.println("</isRegistered>");
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|
| 2536 |
} |
|
| 2537 |
|
|
| 2505 | 2538 |
/** |
| 2506 | 2539 |
* Handle the "getalldocids" action. return a list of all docids registered |
| 2507 | 2540 |
* in the system |
| src/edu/ucsb/nceas/metacat/DBUtil.java | ||
|---|---|---|
| 405 | 405 |
} |
| 406 | 406 |
|
| 407 | 407 |
/** |
| 408 |
* return true if the given docid is registered in either the xml_documents |
|
| 409 |
* or xml_revisions table |
|
| 410 |
*/ |
|
| 411 |
public boolean idExists(String docid) |
|
| 412 |
throws SQLException |
|
| 413 |
{
|
|
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Vector v = getAllDocids(null); |
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| 415 |
for(int i=0; i<v.size(); i++) |
|
| 416 |
{
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|
| 417 |
String id = (String)v.elementAt(i); |
|
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if(id.trim().equals(docid.trim())) |
|
| 419 |
{
|
|
| 420 |
return true; |
|
| 421 |
} |
|
| 422 |
} |
|
| 423 |
return false; |
|
| 424 |
} |
|
| 425 |
|
|
| 426 |
/** |
|
| 408 | 427 |
* get the lastest Accession Number from a particular scope |
| 409 | 428 |
*/ |
| 410 | 429 |
public Vector getAllDocids(String scope) |
| src/edu/ucsb/nceas/metacat/client/MetacatClient.java | ||
|---|---|---|
| 768 | 768 |
} |
| 769 | 769 |
return resultVec; |
| 770 | 770 |
} |
| 771 |
|
|
| 772 |
/** |
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* return true of the given docid is registered, false if not |
|
| 774 |
* @param scope String the scope to use to limit the docid query |
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* @throws MetacatException when an error occurs |
|
| 776 |
*/ |
|
| 777 |
public boolean isRegistered(String docid) throws MetacatException {
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|
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Vector resultVec = new Vector(); |
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//set up properties |
|
| 780 |
Properties prop = new Properties(); |
|
| 781 |
prop.put("action", "isregistered");
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| 782 |
if(docid == null) |
|
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{
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| 784 |
throw new MetacatException("<error>Cannot check if a null docid " +
|
|
| 785 |
"is registered.</error>"); |
|
| 786 |
} |
|
| 787 |
prop.put("docid", docid);
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|
| 788 |
|
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| 789 |
String response = null; |
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try {
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| 791 |
response = sendDataForString(prop, null, null, 0); |
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// Check for an error condition |
|
| 793 |
if (response.indexOf("<error>") != -1) {
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| 794 |
throw new MetacatException(response); |
|
| 795 |
} else {
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| 796 |
Reader responseReader = new StringReader(response); |
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| 797 |
StringBuffer sb = new StringBuffer(); |
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char[] c = new char[1024]; |
|
| 799 |
int numread = responseReader.read(c, 0, 1024); |
|
| 800 |
while(numread != -1) |
|
| 801 |
{
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|
| 802 |
sb.append(new String(c, 0, numread)); |
|
| 803 |
numread = responseReader.read(c, 0, 1024); |
|
| 804 |
} |
|
| 805 |
|
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| 806 |
String responseStr = sb.toString(); |
|
| 807 |
if(responseStr.indexOf("true") != -1)
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| 808 |
{
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| 809 |
return true; |
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| 810 |
} |
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| 811 |
return false; |
|
| 812 |
} |
|
| 813 |
} catch (Exception e) {
|
|
| 814 |
throw new MetacatException(e.getMessage()); |
|
| 815 |
} |
|
| 816 |
} |
|
| 771 | 817 |
|
| 772 | 818 |
/************************************************************************ |
| 773 | 819 |
* PRIVATE METHODS |
| src/edu/ucsb/nceas/metacat/client/Metacat.java | ||
|---|---|---|
| 283 | 283 |
* @throws MetacatException when an error occurs |
| 284 | 284 |
*/ |
| 285 | 285 |
public Vector getAllDocids(String scope) throws MetacatException; |
| 286 |
|
|
| 287 |
/** |
|
| 288 |
* return true of the given docid is registered, false if not |
|
| 289 |
* @param scope String the scope to use to limit the docid query |
|
| 290 |
* @throws MetacatException when an error occurs |
|
| 291 |
*/ |
|
| 292 |
public boolean isRegistered(String docid) throws MetacatException; |
|
| 286 | 293 |
} |
Also available in: Unified diff
added a method to query metacat to see if a particular docid is registered or not