Revision 4334
Added by daigle over 15 years ago
| MetaCatServlet.java | ||
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| 27 | 27 |
package edu.ucsb.nceas.metacat; |
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|
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import java.io.BufferedInputStream; |
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import java.io.BufferedReader; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileReader; |
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import java.io.FileWriter; |
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import java.io.IOException; |
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import java.io.OutputStreamWriter; |
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import java.io.PrintWriter; |
| ... | ... | |
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import com.oreilly.servlet.multipart.Part; |
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|
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import edu.ucsb.nceas.metacat.dataquery.DataQuery; |
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import edu.ucsb.nceas.metacat.service.DatabaseService; |
|
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import edu.ucsb.nceas.metacat.service.PropertyService; |
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import edu.ucsb.nceas.metacat.service.ServiceException; |
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import edu.ucsb.nceas.metacat.service.SessionService; |
| ... | ... | |
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Logger logMetacat = Logger.getLogger(MetaCatServlet.class); |
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try {
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DatabaseService databaseService = DatabaseService.getInstance(); |
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logMetacat.debug("DatabaseService singleton created " + databaseService);
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|
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// initialize DBConnection pool |
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DBConnectionPool connPool = DBConnectionPool.getInstance(); |
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logMetacat.debug("DBConnection pool initialized: " + connPool.toString());
|
| ... | ... | |
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ZipOutputStream zout, boolean withInlineData, Hashtable params) |
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throws ClassNotFoundException, IOException, SQLException, |
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McdbException, Exception {
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String documentDir = PropertyService.getProperty("application.documentfilepath");
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|
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Logger logMetacat = Logger.getLogger(MetaCatServlet.class); |
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try {
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|
| ... | ... | |
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response.setContentType("text/xml"); //MIME type
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response.setHeader("Content-Disposition",
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"attachment; filename=" + docid + ".xml"); |
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|
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// Try to get the metadata file from disk. If it isn't |
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// found, create it from the |
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// db and write it to disk then. |
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String documentPath = documentDir + FileUtil.getFS() + docid; |
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try {
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if (FileUtil.getFileStatus(documentPath) == FileUtil.DOES_NOT_EXIST) {
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FileWriter fileWriter = new FileWriter(documentPath); |
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doc.toXml(fileWriter, user, groups, withInlineData); |
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} |
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FileReader fileReader = new FileReader(documentPath); |
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BufferedReader br = new BufferedReader(fileReader); |
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PrintWriter pw = new PrintWriter(streamOut); |
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String nextLine; |
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while ((nextLine = br.readLine()) != null) {
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pw.println(nextLine); |
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} |
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pw.flush(); |
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} catch (Exception e) {
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// any exceptions in reading the xml from disc, and we go back to the |
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// old way of creating the xml directly. |
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logMetacat.error("could not read from document file " + documentPath
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+ ": " + e.getMessage()); |
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PrintWriter out = new PrintWriter(streamOut); |
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doc.toXml(out, user, groups, withInlineData); |
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} |
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|
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PrintWriter out = new PrintWriter(streamOut); |
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doc.toXml(out, user, groups, withInlineData); |
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} else {
|
| ... | ... | |
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.getDBConnection("MetaCatServlet.handleInsertOrUpdateAction");
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serialNumber = dbConn.getCheckOutSerialNumber(); |
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// write the document to the database |
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// write the document to the database and disk
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try {
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String accNumber = docid[0]; |
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logMetacat.debug("" + doAction + " "
|
| ... | ... | |
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newdocid = documentWrapper.write(dbConn, xml, pub, dtd, |
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doAction, accNumber, user, groups); |
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|
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// write the document to disk |
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FileWriter fileWriter = null; |
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try {
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String documentDir = |
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PropertyService.getProperty("application.documentfilepath");
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String documentPath = documentDir + FileUtil.getFS() + accNumber; |
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if (accNumber != null |
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&& FileUtil.getFileStatus(documentPath) == FileUtil.DOES_NOT_EXIST) {
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fileWriter = new FileWriter(documentPath); |
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fileWriter.write(doctext[0]); |
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} |
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} catch (IOException ioe) {
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logMetacat.error("Did not write " + accNumber
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+ " to file system: " + ioe.getMessage()); |
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} finally {
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if (fileWriter != null) {
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fileWriter.close(); |
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} |
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} |
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EventLog.getInstance().log(request.getRemoteAddr(), |
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user, accNumber, action[0]); |
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} catch (NullPointerException npe) {
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// MCD this seems a bit dubious, since many things can throw npe |
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System.out.println("writing with null acnumber");
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newdocid = documentWrapper.write(dbConn, xml, pub, dtd, |
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doAction, null, user, groups); |
Also available in: Unified diff
Add functionality to write and read metadata documents to and from the file system.