Improve RESTCONF QName parsing speed

[controller.git] / opendaylight / md-sal / sal-rest-connector / src / main / java / org / opendaylight / controller / sal / restconf / impl / ControllerContext.java

diff --git a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.java b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.java
index 671bd6da8a1dbbb8a6d51cc33c2ac99d52f03101..8f9913d30dc1f119fd0a2c4a2761071e9fcc8a6d 100644 (file)
--- a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.java
+++ b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/restconf/impl/ControllerContext.java
@@ -9,13 +9,11 @@ package org.opendaylight.controller.sal.restconf.impl;
 
 import com.google.common.base.Function;
 import com.google.common.base.Objects;
-import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Predicate;
 import com.google.common.base.Splitter;
 import com.google.common.base.Strings;
 import com.google.common.collect.BiMap;
-import com.google.common.collect.FluentIterable;
 import com.google.common.collect.HashBiMap;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Iterables;
@@ -28,7 +26,6 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -86,8 +83,6 @@ public class ControllerContext implements SchemaContextListener {
 
     private static final Splitter SLASH_SPLITTER = Splitter.on('/');
 
-    private static final Splitter COLON_SPLITTER = Splitter.on(':');
-
     private final BiMap<URI, String> uriToModuleName = HashBiMap.<URI, String> create();
 
     private final Map<String, URI> moduleNameToUri = uriToModuleName.inverse();
@@ -796,60 +791,41 @@ public class ControllerContext implements SchemaContextListener {
     }
 
     private static String toModuleName(final String str) {
-        Preconditions.<String> checkNotNull(str);
-        if (str.indexOf(':') != -1) {
-            final Iterable<String> args = COLON_SPLITTER.split(str);
-            if (Iterables.size(args) == 2) {
-                return args.iterator().next();
-            }
+        final int idx = str.indexOf(':');
+        if (idx == -1) {
+            return null;
         }
-        return null;
+
+        // Make sure there is only one occurrence
+        if (str.indexOf(':', idx + 1) != -1) {
+            return null;
+        }
+
+        return str.substring(0, idx);
     }
 
     private static String toNodeName(final String str) {
-        if (str.indexOf(':') != -1) {
-            final Iterable<String> args = COLON_SPLITTER.split(str);
-            if (Iterables.size(args) == 2) {
-                return Iterables.get(args, 1);
-            }
+        final int idx = str.indexOf(':');
+        if (idx == -1) {
+            return str;
+        }
+
+        // Make sure there is only one occurrence
+        if (str.indexOf(':', idx + 1) != -1) {
+            return str;
         }
-        return str;
+
+        return str.substring(idx + 1);
     }
 
     private QName toQName(final String name) {
         final String module = toModuleName(name);
         final String node = toNodeName(name);
-        Set<Module> modules = globalSchema.getModules();
-
-        final Comparator<Module> comparator = new Comparator<Module>() {
-            @Override
-            public int compare(final Module o1, final Module o2) {
-                return o1.getRevision().compareTo(o2.getRevision());
-            }
-        };
-
-        List<Module> sorted = new ArrayList<Module>(modules);
-        Collections.<Module> sort(new ArrayList<Module>(modules), comparator);
-
-        final Function<Module, QName> transform = new Function<Module, QName>() {
-            @Override
-            public QName apply(final Module m) {
-                return QName.create(m.getNamespace(), m.getRevision(), m.getName());
-            }
-        };
-
-        final Predicate<QName> findFirst = new Predicate<QName>() {
-            @Override
-            public boolean apply(final QName qn) {
-                return Objects.equal(module, qn.getLocalName());
-            }
-        };
-
-        Optional<QName> namespace = FluentIterable.from(sorted).transform(transform).firstMatch(findFirst);
-        return namespace.isPresent() ? QName.create(namespace.get(), node) : null;
+        final Module m = globalSchema.findModuleByName(module, null);
+        return m == null ? null : QName.create(m.getQNameModule(), node);
     }
 
-    private boolean isListOrContainer(final DataSchemaNode node) {
+    private static boolean isListOrContainer(final DataSchemaNode node) {
         return node instanceof ListSchemaNode || node instanceof ContainerSchemaNode;
     }