*/
package org.opendaylight.yangtools.yang.data.api;
+import com.google.common.annotations.Beta;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
*
* @see <a href="http://tools.ietf.org/html/rfc6020#section-9.13">RFC6020</a>
*/
-public abstract class YangInstanceIdentifier extends CollectionPathArguments implements Path<YangInstanceIdentifier>, Immutable, Serializable {
+public abstract class YangInstanceIdentifier extends IterablePathArguments implements Path<YangInstanceIdentifier>, Immutable, Serializable {
/**
* An empty {@link YangInstanceIdentifier}. It corresponds to the path of the conceptual
* root of the YANG namespace.
*/
public abstract boolean isEmpty();
+ /**
+ * Return an optimized version of this identifier, useful when the identifier
+ * will be used very frequently.
+ *
+ * @return A optimized equivalent instance.
+ */
+ @Beta
+ public abstract YangInstanceIdentifier toOptimized();
+
/**
* Return the conceptual parent {@link YangInstanceIdentifier}, which has
* one item less in {@link #getPathArguments()}.
return Optional.of(createRelativeIdentifier(common));
}
+ @Override
+ public final boolean contains(final YangInstanceIdentifier other) {
+ Preconditions.checkArgument(other != null, "other should not be null");
+
+ final Iterator<?> lit = getPathArguments().iterator();
+ final Iterator<?> oit = other.getPathArguments().iterator();
+
+ while (lit.hasNext()) {
+ if (!oit.hasNext()) {
+ return false;
+ }
+
+ if (!lit.next().equals(oit.next())) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ @Override
+ public final String toString() {
+ /*
+ * The toStringCache is safe, since the object contract requires
+ * immutability of the object and all objects referenced from this
+ * object.
+ * Used lists, maps are immutable. Path Arguments (elements) are also
+ * immutable, since the PathArgument contract requires immutability.
+ * The cache is thread-safe - if multiple computations occurs at the
+ * same time, cache will be overwritten with same result.
+ */
+ String ret = toStringCache;
+ if (ret == null) {
+ final StringBuilder builder = new StringBuilder("/");
+ PathArgument prev = null;
+ for (PathArgument argument : getPathArguments()) {
+ if (prev != null) {
+ builder.append('/');
+ }
+ builder.append(argument.toRelativeString(prev));
+ prev = argument;
+ }
+
+ ret = builder.toString();
+ TOSTRINGCACHE_UPDATER.lazySet(this, ret);
+ }
+ return ret;
+ }
+
private static int hashCode(final Object value) {
if (value == null) {
return 0;
}
- if (value.getClass().equals(byte[].class)) {
+ if (byte[].class.equals(value.getClass())) {
return Arrays.hashCode((byte[]) value);
}
// Static factories & helpers
/**
- *
* Returns a new InstanceIdentifier with only one path argument of type {@link NodeIdentifier} with supplied QName
*
* @param name QName of first node identifier
}
/**
- *
* Returns new builder for InstanceIdentifier with empty path arguments.
*
* @return new builder for InstanceIdentifier with empty path arguments.
*
* Returns new builder for InstanceIdentifier with path arguments copied from original instance identifier.
*
- * @param origin Instace Identifier from which path arguments are copied.
+ * @param origin InstanceIdentifier from which path arguments are copied.
* @return new builder for InstanceIdentifier with path arguments copied from original instance identifier.
*/
public static InstanceIdentifierBuilder builder(final YangInstanceIdentifier origin) {
* Fluent Builder of Instance Identifier instances
*/
public interface InstanceIdentifierBuilder extends Builder<YangInstanceIdentifier> {
+ /**
+ * Adds a {@link PathArgument} to to path arguments of resulting instance identifier.
+ *
+ * @param arg A {@link PathArgument} to be added
+ * @return this builder
+ */
+ InstanceIdentifierBuilder node(PathArgument arg);
+
/**
* Adds {@link NodeIdentifier} with supplied QName to path arguments of resulting instance identifier.
*
}
final Map<QName, Object> otherKeyValues = ((NodeIdentifierWithPredicates) obj).keyValues;
+
+ // TODO: benchmark to see if just calling equals() on the two maps is not faster
+ if (keyValues == otherKeyValues) {
+ return true;
+ }
if (keyValues.size() != otherKeyValues.size()) {
return false;
}
}
}
}
-
- @Override
- public final boolean contains(final YangInstanceIdentifier other) {
- Preconditions.checkArgument(other != null, "other should not be null");
-
- final Iterator<?> lit = getPathArguments().iterator();
- final Iterator<?> oit = other.getPathArguments().iterator();
-
- while (lit.hasNext()) {
- if (!oit.hasNext()) {
- return false;
- }
-
- if (!lit.next().equals(oit.next())) {
- return false;
- }
- }
-
- return true;
- }
-
- @Override
- public final String toString() {
- /*
- * The toStringCache is safe, since the object contract requires
- * immutability of the object and all objects referenced from this
- * object.
- * Used lists, maps are immutable. Path Arguments (elements) are also
- * immutable, since the PathArgument contract requires immutability.
- * The cache is thread-safe - if multiple computations occurs at the
- * same time, cache will be overwritten with same result.
- */
- String ret = toStringCache;
- if (ret == null) {
- final StringBuilder builder = new StringBuilder("/");
- PathArgument prev = null;
- for (PathArgument argument : getPathArguments()) {
- if (prev != null) {
- builder.append('/');
- }
- builder.append(argument.toRelativeString(prev));
- prev = argument;
- }
-
- ret = builder.toString();
- TOSTRINGCACHE_UPDATER.lazySet(this, ret);
- }
- return ret;
- }
}
Code Review / yangtools.git / blobdiff