Use Objects.hashCode()

[yangtools.git] / yang / yang-model-api / src / main / java / org / opendaylight / yangtools / yang / model / repo / api / SourceIdentifier.java

diff --git a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/repo/api/SourceIdentifier.java b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/repo/api/SourceIdentifier.java
index ce3b7dd8c9af2d9181691ab2148db594889f4894..43879624c99d9da581073e72d5afffa13296e3af 100644 (file)
--- a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/repo/api/SourceIdentifier.java
+++ b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/repo/api/SourceIdentifier.java
@@ -3,18 +3,20 @@
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/eplv10.html
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
 package org.opendaylight.yangtools.yang.model.repo.api;
 
 import com.google.common.annotations.Beta;
 import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
-
+import java.util.Objects;
+import java.util.regex.Pattern;
 import org.opendaylight.yangtools.concepts.Identifier;
 import org.opendaylight.yangtools.concepts.Immutable;
 import org.opendaylight.yangtools.objcache.ObjectCache;
 import org.opendaylight.yangtools.objcache.ObjectCacheFactory;
+import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
 
 /**
  * YANG Schema source identifier
@@ -44,11 +46,33 @@ public final class SourceIdentifier implements Identifier, Immutable {
      */
     public static final String NOT_PRESENT_FORMATTED_REVISION = "0000-00-00";
 
+    /**
+     *
+     * Simplified compiled revision pattern in format YYYY-mm-dd, which checks
+     * only distribution of number elements.
+     * <p>
+     * For checking if supplied string is real date, use {@link SimpleDateFormatUtil}
+     * instead.
+     *
+     */
+    public static final Pattern REVISION_PATTERN = Pattern.compile("\\d\\d\\d\\d-\\d\\d-\\d\\d");
+
     private static final ObjectCache CACHE = ObjectCacheFactory.getObjectCache(SourceIdentifier.class);
     private static final long serialVersionUID = 1L;
     private final String revision;
     private final String name;
 
+    /**
+     *
+     * Creates new YANG Schema source identifier for sources without revision.
+     * {@link SourceIdentifier#NOT_PRESENT_FORMATTED_REVISION} as default revision.
+     *
+     * @param name Name of schema
+     */
+    public SourceIdentifier(final String name) {
+        this(name, NOT_PRESENT_FORMATTED_REVISION);
+    }
+
     /**
      * Creates new YANG Schema source identifier.
      *
@@ -80,17 +104,6 @@ public final class SourceIdentifier implements Identifier, Immutable {
         return CACHE.getReference(this);
     }
 
-    /**
-     *
-     * Creates new YANG Schema source identifier for sources without revision.
-     * {@link SourceIdentifier#NOT_PRESENT_FORMATTED_REVISION} as default revision.
-     *
-     * @param name Name of schema
-     */
-    public SourceIdentifier(final String name) {
-        this(name, NOT_PRESENT_FORMATTED_REVISION);
-    }
-
     /**
      * Returns model name
      *
@@ -113,8 +126,8 @@ public final class SourceIdentifier implements Identifier, Immutable {
     public int hashCode() {
         final int prime = 31;
         int result = 1;
-        result = prime * result + ((name == null) ? 0 : name.hashCode());
-        result = prime * result + ((revision == null) ? 0 : revision.hashCode());
+        result = prime * result + Objects.hashCode(name);
+        result = prime * result + Objects.hashCode(revision);
         return result;
     }
 
@@ -187,7 +200,7 @@ public final class SourceIdentifier implements Identifier, Immutable {
      *
      * @return Filename for this source identifier.
      */
-    public static final String toYangFileName(final String moduleName, final Optional<String> revision) {
+    public static String toYangFileName(final String moduleName, final Optional<String> revision) {
         StringBuilder filename = new StringBuilder(moduleName);
         if (revision.isPresent()) {
             filename.append('@');