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-rw-r--r--petascope/src/petascope/wcps/server/core/ProcessCoveragesRequest.java462
1 files changed, 229 insertions, 233 deletions
diff --git a/petascope/src/petascope/wcps/server/core/ProcessCoveragesRequest.java b/petascope/src/petascope/wcps/server/core/ProcessCoveragesRequest.java
index 1dbaedd..ed3b1ae 100644
--- a/petascope/src/petascope/wcps/server/core/ProcessCoveragesRequest.java
+++ b/petascope/src/petascope/wcps/server/core/ProcessCoveragesRequest.java
@@ -14,240 +14,236 @@
* You should have received a copy of the GNU General Public License
* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
- * Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
- rasdaman GmbH.
+ * Copyright 2003 - 2010 Peter Baumann / rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
-package petascope.wcps.server.core;
-
-import petascope.wcps.server.exceptions.InvalidCrsException;
-import petascope.wcps.server.exceptions.ResourceException;
-import petascope.wcps.server.exceptions.WCPSException;
-import petascope.wcps.server.exceptions.InvalidWcpsRequestException;
-import petascope.wcps.grammar.WCPSRequest;
-import petascope.wcps.grammar.wcpsLexer;
-import petascope.wcps.grammar.wcpsParser;
-import petascope.wcps.grammar.wcpsParser.wcpsRequest_return;
-import java.io.IOException;
-import java.io.StringReader;
-import org.antlr.runtime.RecognitionException;
-import org.odmg.DBag;
-import org.odmg.Database;
-import org.odmg.Implementation;
-import org.odmg.ODMGException;
-import org.odmg.OQLQuery;
-import org.odmg.QueryException;
-import org.odmg.Transaction;
-
-import org.w3c.dom.*;
-
-import org.xml.sax.SAXException;
-import rasj.RasGMArray;
-import rasj.RasImplementation;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-import org.antlr.runtime.ANTLRStringStream;
-import org.antlr.runtime.CharStream;
-import org.antlr.runtime.CommonTokenStream;
-import org.xml.sax.InputSource;
-
-/** A WCPS ProcessCoveragesRequest request provides a (just one) rasdaman query, that it executes.
- *
- * Internally, it relies on XmlRequest, which computes the RasQL query.
- *
- */
-public class ProcessCoveragesRequest {
-
- private String database;
- private IDynamicMetadataSource source;
- private String url;
- private WCPS wcps;
- private String rasqlQuery;
- private String mime;
- private XmlQuery xmlQuery;
-
- public ProcessCoveragesRequest(String url, String database, Node node, IDynamicMetadataSource source, WCPS wcps)
- throws WCPSException, InvalidWcpsRequestException, ResourceException, SAXException, IOException, InvalidCrsException {
- super();
- this.source = source;
- this.url = url;
- this.database = database;
- this.wcps = wcps;
- Node child = node.getFirstChild();
- this.rasqlQuery = null;
-
- System.err.println("Parsing ProcessCoveragesRequest node: " + child.getNodeName());
-
- if (child.getNodeName().equals("ProcessCoveragesRequest") == false) {
- throw new WCPSException("The document contains an unrecognized node : "
- + child.getNodeName());
- }
-
- child = child.getFirstChild();
- while (child.getNodeName().equals("#text")) {
- child = child.getNextSibling();
- }
-
- if (child.getNodeName().equals("query") == false) {
- throw new WCPSException("Could not find node <query>: " + child.getNodeName());
- }
-
- // "child" is now the node <query>.
- Node queryNode = child.getFirstChild();
- while (queryNode.getNodeName().equals("#text")) {
- queryNode = queryNode.getNextSibling();
- }
-
- /**
- * The following code is essential. It handles the two cases:
- * 1) the xml contains an <xmlSyntax> request
- * 2) the xml contains an <abstractSyntax> request
- */
- if (queryNode.getNodeName().equals("xmlSyntax")) {
- System.err.println("Found XML Syntax query");
- this.xmlQuery = new XmlQuery(this.source);
- xmlQuery.startParsing(queryNode);
- } else if (queryNode.getNodeName().equals("abstractSyntax")) {
- try {
- String abstractQuery = queryNode.getFirstChild().getNodeValue();
- System.err.println("Found Abstract Syntax query: " + abstractQuery);
- String xmlString = abstractQueryToXmlQuery(abstractQuery);
- InputSource xmlStringSource = new InputSource(new StringReader(xmlString));
- System.err.println("Coverted the Abstract syntax query to an XML query:");
- System.err.println("***********************************************");
- System.err.println(xmlString);
- System.err.println("***********************************************");
- ProcessCoveragesRequest newRequest = wcps.pcPrepare(url, database, xmlStringSource);
- this.xmlQuery = newRequest.getXmlRequestStructure();
- } catch (RecognitionException e) {
- throw new WCPSException("Abstract Syntax query is invalid: "
- + e.getMessage());
- }
- } else {
- throw new WCPSException("Error ! Unexpected node: " + queryNode.getNodeName());
- }
-
- // If everything went well, we now have a proper value for "xmlQuery"
- this.rasqlQuery = xmlQuery.toRasQL();
- System.err.println("Final RasQL query: " + rasqlQuery);
- this.mime = xmlQuery.getMimeType();
- }
-
- public static String abstractQueryToXmlQuery(String abstractQuery) throws RecognitionException {
- CharStream cs = new ANTLRStringStream(abstractQuery);
- wcpsLexer lexer = new wcpsLexer(cs);
- CommonTokenStream tokens = new CommonTokenStream();
- tokens.setTokenSource(lexer);
- wcpsParser parser = new wcpsParser(tokens);
- wcpsRequest_return rrequest = parser.wcpsRequest();
- WCPSRequest request = rrequest.value;
- String xmlRequest = request.toXML();
-
- return xmlRequest;
- }
-
- public String getMime() {
- return mime;
- }
-
- private XmlQuery getXmlRequestStructure() {
- return xmlQuery;
- }
-
- public String getRasqlQuery() {
- return this.rasqlQuery;
- }
-
- public List<byte[]> execute() throws ResourceException {
- ArrayList<byte[]> results = new ArrayList<byte[]>();
-
- if (this.rasqlQuery != null) {
- Implementation impl = new RasImplementation(url);
- Database db = impl.newDatabase();
-
- try {
- db.open(database, Database.OPEN_READ_ONLY);
- } catch (ODMGException odmge) {
- try {
- db.close();
- } catch (ODMGException e) {
- }
-
- throw new ResourceException("Could not connect to rasdaman at "
- + url + ", database "
- + database, odmge);
- }
-
- Transaction tr = impl.newTransaction();
-
- tr.begin();
- OQLQuery q = impl.newOQLQuery();
- DBag resultSet;
-
- try {
- q.create(this.getRasqlQuery());
- resultSet = (DBag) q.execute();
-
- if (resultSet != null) {
- Iterator resultIterator = resultSet.iterator();
-
- while (resultIterator.hasNext()) {
- Object current = resultIterator.next();
-
- try {
- RasGMArray resultArray =
- (RasGMArray) current;
-
- results.add(resultArray.getArray());
- } catch (ClassCastException e) { // not a RasGMarray
- if (!mime.equals("text/plain")) {
- throw new ResourceException(
- "Incompatible mime and data type!");
- }
-
- System.err.println("result="
- + current.toString());
- results.add(current.toString().getBytes());
-
- }
-
-
- /*
- * if (mime.equals("text/plain")) {
- * System.err.println("dataType is :" + resultArray.getBaseTypeSchema().toString());
- * }
- */
-
- }
- }
- } catch (QueryException qe) {
- tr.commit();
-
- try {
- db.close();
- } catch (ODMGException odmge) {
- }
-
- throw new ResourceException("Could not evaluate rasdaman query: '"
- + getRasqlQuery() + "'. Cause: " + qe.getMessage(), qe);
- }
-
- tr.commit();
-
- try {
- db.close();
- } catch (ODMGException odmge) {
- }
- }
-
- if (mime.equals("text/plain")) {
- }
-
- return results;
-
- }
-}
+package petascope.wcps.server.core;
+
+import petascope.core.IDynamicMetadataSource;
+import petascope.exceptions.PetascopeException;
+import petascope.exceptions.WCPSException;
+import petascope.wcps.grammar.WCPSRequest;
+import petascope.wcps.grammar.wcpsLexer;
+import petascope.wcps.grammar.wcpsParser;
+import petascope.wcps.grammar.wcpsParser.wcpsRequest_return;
+import java.io.IOException;
+import java.io.StringReader;
+import org.antlr.runtime.RecognitionException;
+import org.odmg.DBag;
+import org.odmg.Database;
+import org.odmg.Implementation;
+import org.odmg.ODMGException;
+import org.odmg.OQLQuery;
+import org.odmg.QueryException;
+import org.odmg.Transaction;
+import org.w3c.dom.*;
+import org.xml.sax.SAXException;
+import rasj.RasGMArray;
+import rasj.RasImplementation;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import org.antlr.runtime.ANTLRStringStream;
+import org.antlr.runtime.CharStream;
+import org.antlr.runtime.CommonTokenStream;
+import org.xml.sax.InputSource;
+import petascope.exceptions.ExceptionCode;
+
+/** A WCPS ProcessCoveragesRequest request provides a (just one) rasdaman query, that it executes.
+ *
+ * Internally, it relies on XmlRequest, which computes the RasQL query.
+ *
+ */
+public class ProcessCoveragesRequest {
+
+ private String database;
+ private IDynamicMetadataSource source;
+ private String url;
+ private WCPS wcps;
+ private String rasqlQuery;
+ private String mime;
+ private XmlQuery xmlQuery;
+
+ public ProcessCoveragesRequest(String url, String database, Node node, IDynamicMetadataSource source, WCPS wcps)
+ throws WCPSException, SAXException, IOException, PetascopeException {
+ super();
+ this.source = source;
+ this.url = url;
+ this.database = database;
+ this.wcps = wcps;
+ Node child = node.getFirstChild();
+ this.rasqlQuery = null;
+
+ System.err.println("Parsing ProcessCoveragesRequest node: " + child.getNodeName());
+
+ if (child.getNodeName().equals("ProcessCoveragesRequest") == false) {
+ throw new WCPSException("The document contains an unrecognized node : "
+ + child.getNodeName());
+ }
+
+ child = child.getFirstChild();
+ while (child.getNodeName().equals("#text")) {
+ child = child.getNextSibling();
+ }
+
+ if (child.getNodeName().equals("query") == false) {
+ throw new WCPSException("Could not find node <query>: " + child.getNodeName());
+ }
+
+ // "child" is now the node <query>.
+ Node queryNode = child.getFirstChild();
+ while (queryNode.getNodeName().equals("#text")) {
+ queryNode = queryNode.getNextSibling();
+ }
+
+ /**
+ * The following code is essential. It handles the two cases:
+ * 1) the xml contains an <xmlSyntax> request
+ * 2) the xml contains an <abstractSyntax> request
+ */
+ if (queryNode.getNodeName().equals("xmlSyntax")) {
+ System.err.println("Found XML Syntax query");
+ this.xmlQuery = new XmlQuery(this.source);
+ xmlQuery.startParsing(queryNode);
+ } else if (queryNode.getNodeName().equals("abstractSyntax")) {
+ try {
+ String abstractQuery = queryNode.getFirstChild().getNodeValue();
+ System.err.println("Found Abstract Syntax query: " + abstractQuery);
+ String xmlString = abstractQueryToXmlQuery(abstractQuery);
+ InputSource xmlStringSource = new InputSource(new StringReader(xmlString));
+ System.err.println("Coverted the Abstract syntax query to an XML query:");
+ System.err.println("***********************************************");
+ System.err.println(xmlString);
+ System.err.println("***********************************************");
+ ProcessCoveragesRequest newRequest = wcps.pcPrepare(url, database, xmlStringSource);
+ this.xmlQuery = newRequest.getXmlRequestStructure();
+ } catch (RecognitionException e) {
+ throw new WCPSException("Abstract Syntax query is invalid: "
+ + e.getMessage());
+ }
+ } else {
+ throw new WCPSException("Error ! Unexpected node: " + queryNode.getNodeName());
+ }
+
+ // If everything went well, we now have a proper value for "xmlQuery"
+ this.rasqlQuery = xmlQuery.toRasQL();
+ System.err.println("Final RasQL query: " + rasqlQuery);
+ this.mime = xmlQuery.getMimeType();
+ }
+
+ public static String abstractQueryToXmlQuery(String abstractQuery) throws RecognitionException {
+ CharStream cs = new ANTLRStringStream(abstractQuery);
+ wcpsLexer lexer = new wcpsLexer(cs);
+ CommonTokenStream tokens = new CommonTokenStream();
+ tokens.setTokenSource(lexer);
+ wcpsParser parser = new wcpsParser(tokens);
+ wcpsRequest_return rrequest = parser.wcpsRequest();
+ WCPSRequest request = rrequest.value;
+ String xmlRequest = request.toXML();
+
+ return xmlRequest;
+ }
+
+ public String getMime() {
+ return mime;
+ }
+
+ private XmlQuery getXmlRequestStructure() {
+ return xmlQuery;
+ }
+
+ public String getRasqlQuery() {
+ return this.rasqlQuery;
+ }
+
+ public List<byte[]> execute() throws WCPSException {
+ ArrayList<byte[]> results = new ArrayList<byte[]>();
+
+ if (this.rasqlQuery != null) {
+ Implementation impl = new RasImplementation(url);
+ Database db = impl.newDatabase();
+
+ try {
+ db.open(database, Database.OPEN_READ_ONLY);
+ } catch (ODMGException odmge) {
+ try {
+ db.close();
+ } catch (ODMGException e) {
+ }
+
+ throw new WCPSException(ExceptionCode.ResourceError, "Could not connect to rasdaman at "
+ + url + ", database "
+ + database, odmge);
+ }
+
+ Transaction tr = impl.newTransaction();
+
+ tr.begin();
+ OQLQuery q = impl.newOQLQuery();
+ DBag resultSet;
+
+ try {
+ q.create(this.getRasqlQuery());
+ resultSet = (DBag) q.execute();
+
+ if (resultSet != null) {
+ Iterator resultIterator = resultSet.iterator();
+
+ while (resultIterator.hasNext()) {
+ Object current = resultIterator.next();
+
+ try {
+ RasGMArray resultArray =
+ (RasGMArray) current;
+
+ results.add(resultArray.getArray());
+ } catch (ClassCastException e) { // not a RasGMarray
+ if (!mime.equals("text/plain")) {
+ throw new WCPSException(ExceptionCode.ResourceError,
+ "Incompatible mime and data type!");
+ }
+
+ System.err.println("result="
+ + current.toString());
+ results.add(current.toString().getBytes());
+
+ }
+
+
+ /*
+ * if (mime.equals("text/plain")) {
+ * System.err.println("dataType is :" + resultArray.getBaseTypeSchema().toString());
+ * }
+ */
+
+ }
+ }
+ } catch (QueryException qe) {
+ tr.commit();
+
+ try {
+ db.close();
+ } catch (ODMGException odmge) {
+ }
+
+ throw new WCPSException(ExceptionCode.ResourceError, "Could not evaluate rasdaman query: '"
+ + getRasqlQuery() + "'. Cause: " + qe.getMessage(), qe);
+ }
+
+ tr.commit();
+
+ try {
+ db.close();
+ } catch (ODMGException odmge) {
+ }
+ }
+
+ if (mime.equals("text/plain")) {
+ }
+
+ return results;
+
+ }
+}