*******************************************************************************/
package org.simantics.db.impl.query;
-import gnu.trove.map.hash.TObjectIntHashMap;
-
-import java.util.concurrent.Semaphore;
-
import org.simantics.databoard.util.URIStringUtils;
+import org.simantics.db.ObjectResourceIdMap;
import org.simantics.db.common.exception.DebugException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ResourceNotFoundException;
import org.simantics.db.impl.graph.ReadGraphImpl;
import org.simantics.db.impl.procedure.InternalProcedure;
-import org.simantics.db.procedure.ListenerBase;
public class URIToResource extends StringQuery<InternalProcedure<Integer>> {
-// public ArrayList<InternalProcedure<Integer>> procs = null;
-
- private URIToResource(final String id) {
+ URIToResource(final String id) {
super(id);
}
-
- final static URIToResource entry(final QueryProcessor provider, final String id) {
- return (URIToResource)provider.uriToResourceMap.get(id);
- }
-
- final static void runner(ReadGraphImpl graph, final String id, CacheEntry parent, final ListenerBase listener, final InternalProcedure<Integer> procedure) {
-
- QueryProcessor processor = graph.processor;
-
- URIToResource entry = (URIToResource)processor.uriToResourceMap.get(id);
- if(entry == null) {
-
- entry = new URIToResource(id);
- entry.setPending();
- entry.clearResult(processor.querySupport);
- entry.putEntry(processor);
-
- processor.performForEach(graph, entry, parent, listener, procedure);
-
- } else {
-
- if(entry.isPending()) {
- synchronized(entry) {
- if(entry.isPending()) {
- throw new IllegalStateException();
-// if(entry.procs == null) entry.procs = new ArrayList<InternalProcedure<Integer>>();
-// entry.procs.add(procedure);
-// processor.registerDependencies(graph, entry, parent, listener, procedure, false);
-// return;
- }
- }
- }
-
- processor.performForEach(graph, entry, parent, listener, procedure);
-
- }
-
- }
-
- final public static void queryEach(ReadGraphImpl graph, final String id, final CacheEntry parent, final ListenerBase listener, final InternalProcedure<Integer> procedure) {
-
- assert(id != null);
-
- if(graph.parent == null && listener == null) {
- URIToResource.computeForEach(graph, id, null, procedure);
- } else {
- runner(graph, id, parent, listener, procedure);
- }
-
- }
-
- @Override
- public URIToResource getEntry(QueryProcessor provider) {
- return provider.uriToResourceMap.get(id);
- }
-
- @Override
- public void putEntry(QueryProcessor provider) {
- provider.uriToResourceMap.put(id, this);
- }
@Override
final public void removeEntry(QueryProcessor provider) {
- provider.uriToResourceMap.remove(id);
- }
-
- private void lookup(ReadGraphImpl graph, final QueryProcessor processor, final InternalProcedure<Integer> procedure, final String namespace, final String name) {
-
- NamespaceIndex.queryEach(graph, namespace, processor, this, null, new InternalProcedure<TObjectIntHashMap<String>>() {
-
- @Override
- public void execute(ReadGraphImpl graph, TObjectIntHashMap<String> index) {
-
- if(index != null) {
- int result = index.get(name);
- if(result != 0) {
- addOrSet(graph, processor, result);
- procedure.execute(graph, result);
- return;
- }
- }
-
- addOrSet(graph, processor, new Integer(0));
- procedure.execute(graph, new Integer(0));
-
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- except(t);
- procedure.exception(graph, t);
- }
-
- });
-
- }
-
- private static void lookup(ReadGraphImpl graph, final URIToResource entry, final InternalProcedure<Integer> procedure, final String namespace, final String name) {
-
- NamespaceIndex.queryEach(graph, namespace, graph.processor, entry, null, new InternalProcedure<TObjectIntHashMap<String>>() {
-
- @Override
- public void execute(ReadGraphImpl graph, TObjectIntHashMap<String> index) {
-
- if(index != null) {
- int result = index.get(name);
- if(result != 0) {
- if(entry != null) entry.addOrSet(graph, graph.processor, result);
- procedure.execute(graph, result);
- return;
- }
- }
-
- if(entry != null) entry.addOrSet(graph, graph.processor, new Integer(0));
- procedure.execute(graph, new Integer(0));
-
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- if(entry != null) entry.except(t);
- procedure.exception(graph, t);
- }
-
- });
-
+ provider.cache.remove(this);
}
- @Override
- public void computeForEach(ReadGraphImpl graph, final QueryProcessor processor, final InternalProcedure<Integer> procedure) {
-
-// new Exception("URIToResource " + id).printStackTrace();
-
- if("http://".equals(id) || "http:/".equals(id)) {
-
- addOrSet(graph, processor, processor.getRootLibrary());
- procedure.execute(graph, processor.getRootLibrary());
-
- } else {
-
- final String[] parts = URIStringUtils.splitURI(id);
- if (parts != null) {
- lookup(graph, processor, procedure, parts[0], parts[1]);
- } else {
- lookup(graph, processor, procedure, "http://", id.replaceFirst("http://", ""));
- }
-
- }
-
+ //@Override
+ public Object compute(ReadGraphImpl graph, final InternalProcedure<Integer> procedure) throws DatabaseException {
+ computeForEach(graph, id, this, procedure);
+ return getResult();
}
- final private static void computeForEach(ReadGraphImpl graph, String id, final URIToResource entry, final InternalProcedure<Integer> procedure) {
+ static void computeForEach(ReadGraphImpl graph, String id, final URIToResource entry, final InternalProcedure<Integer> procedure) throws DatabaseException {
if("http://".equals(id) || "http:/".equals(id)) {
final String[] parts = URIStringUtils.splitURI(id);
if (parts != null) {
- lookup(graph, entry, procedure, parts[0], parts[1]);
+
+ Integer parentId = QueryCache.resultURIToResource(graph, parts[0], entry, null);
+ ObjectResourceIdMap<String> map = QueryCache.resultChildMap(graph, parentId, entry, null);
+ if(map == null) {
+ procedure.execute(graph, 0);
+ if(entry != null) entry.addOrSet(graph, graph.processor, 0);
+ } else {
+ int result = map.getId(URIStringUtils.unescape(parts[1]));
+ if(entry != null) entry.addOrSet(graph, graph.processor, result);
+ procedure.execute(graph, result);
+ }
+
} else {
- lookup(graph, entry, procedure, "http://", id.replaceFirst("http://", ""));
+
+ ResourceNotFoundException e = new ResourceNotFoundException("No resource for URI: " + id);
+ if(entry != null) entry.except(e);
+ procedure.exception(graph, e);
+
}
}
assert(isPending());
-// ArrayList<InternalProcedure<Integer>> p = null;
-
synchronized(this) {
-
setResult(result);
setReady();
-// p = procs;
-// procs = null;
-
}
-
-// if(p != null)
-// for(InternalProcedure<Integer> proc : p) proc.execute(graph, result);
}
}
@Override
- public void performFromCache(ReadGraphImpl graph, QueryProcessor provider, InternalProcedure<Integer> procedure) {
+ public Object performFromCache(ReadGraphImpl graph, InternalProcedure<Integer> procedure) throws DatabaseException {
assert(isReady());
- if(handleException(graph, procedure)) return;
-
- if(isExcepted()) {
- procedure.exception(graph, (Throwable)statusOrException);
- } else {
- procedure.execute(graph, (Integer)getResult());
- }
+ if(handleException(graph, procedure)) return (Throwable)statusOrException;
+
+ Integer result = (Integer)getResult();
+ procedure.execute(graph, result);
+ return result;
}
@Override
- public void recompute(ReadGraphImpl graph, QueryProcessor provider) {
+ public void recompute(ReadGraphImpl graph) throws DatabaseException {
- final Semaphore s = new Semaphore(0);
-
- computeForEach(graph, provider, new InternalProcedure<Integer>() {
+ compute(graph, new InternalProcedure<Integer>() {
@Override
public void execute(ReadGraphImpl graph, Integer result) {
- s.release();
}
@Override
});
- while(!s.tryAcquire()) {
- provider.resume(graph);
- }
-
}
}
Code Review / simantics / platform.git / blobdiff