Made ResourceManager to accept arbitrary ResourceConsumer implementation. (ONOS-4406)
Change-Id: If41564824770c2a8b78237a206c036df94141117
diff --git a/core/api/src/main/java/org/onosproject/net/resource/ResourceConsumerId.java b/core/api/src/main/java/org/onosproject/net/resource/ResourceConsumerId.java
new file mode 100644
index 0000000..630c845
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/resource/ResourceConsumerId.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.net.resource;
+
+import com.google.common.base.Objects;
+import org.onlab.util.Identifier;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Representation of global unique ID for ResourceConsumer object.
+ */
+public class ResourceConsumerId {
+ private final String className;
+ private final long value;
+
+ // Constructor for serializer.
+ protected ResourceConsumerId() {
+ this.className = null;
+ this.value = 0L;
+ }
+
+ /**
+ * Constructor with specifying every fields.
+ *
+ * @param value ID value unique within the given class
+ * @param cls class of ResourceConsumer implementation
+ */
+ ResourceConsumerId(long value, Class<?> cls) {
+ this.className = checkNotNull(cls.getName());
+ this.value = value;
+ }
+
+ /**
+ * Checks if the consumer is an instance of given class.
+ *
+ * @param cls class object
+ * @return result of check
+ */
+ public boolean isClassOf(Class<?> cls) {
+ return checkNotNull(cls).getName().equals(className);
+ }
+
+ /**
+ * Returns class name of the consumer.
+ *
+ * @return class name of the consumer in String
+ */
+ public String consumerClass() {
+ return className;
+ }
+
+ /**
+ * Returns ID value.
+ *
+ * @return ID value
+ */
+ public long value() {
+ return value;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) {
+ return true;
+ }
+ if (o == null || getClass() != o.getClass()) {
+ return false;
+ }
+ ResourceConsumerId that = (ResourceConsumerId) o;
+ return Objects.equal(className, that.className) &&
+ Objects.equal(value, that.value);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hashCode(className, value);
+ }
+
+ /**
+ * Creates ResourceConsumerId from given value and class.
+ *
+ * @param value ID value unique within the given class
+ * @param cls class of ResourceConsumer implementation
+ * @return created ResourceConsumerId object
+ */
+ public static <T extends ResourceConsumer> ResourceConsumerId of(long value, Class<T> cls) {
+ return new ResourceConsumerId(value, cls);
+ }
+
+ /**
+ * Creates ResourceConsumerId instance from Identifier object.
+ *
+ * @param id identifier object backed by Long value
+ * @return created ResourceConsumerId object
+ */
+ public static <T extends Identifier<Long> & ResourceConsumer> ResourceConsumerId of(T id) {
+ return new ResourceConsumerId(id.id(), id.getClass());
+ }
+}