--- /dev/null
+/*******************************************************************************
+ * * org.onap.ccsdk
+ * * ===========================================================================
+ * * Copyright © 2023 AT&T Intellectual Property. All rights reserved.
+ * * ===========================================================================
+ * * 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.
+ * * ============LICENSE_END====================================================
+ * *
+ * *
+ ******************************************************************************/
+
+package org.onap.ccsdk.apps.cadi.util.test;
+
+import static org.junit.Assert.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.hamcrest.CoreMatchers.*;
+import org.junit.*;
+import org.onap.ccsdk.apps.cadi.CadiException;
+import org.onap.ccsdk.apps.cadi.util.Log;
+import org.onap.ccsdk.apps.cadi.util.Pool;
+import org.onap.ccsdk.apps.cadi.util.Pool.*;
+
+public class JU_Pool {
+
+ private class IntegerCreator implements Creator<Integer> {
+ private int current = 0;
+
+ @Override
+ public Integer create() {
+ return current++;
+ }
+
+ @Override
+ public void destroy(Integer t) {
+ t = 0;
+ }
+
+ @Override
+ public boolean isValid(Integer t) {
+ return (t & 0x1) == 0;
+ }
+
+ @Override
+ public void reuse(Integer t) {
+ }
+ }
+
+ // Used for CustomLogger Testing
+ private StringBuilder sb = new StringBuilder();
+
+ private class CustomLogger implements Log {
+ @Override
+ public void log(Log.Type type, Object... o) {
+ for (Object item : o) {
+ sb.append(item.toString());
+ }
+ }
+ }
+
+ /**
+ * Enter variable amount in this order
+ *
+ * count, used, max_range, max_objects
+ * @param intPool
+ * @param ints
+ */
+ private void check(Pool<Integer> intPool, int ... ints) {
+ String rpt = intPool.toString();
+ // Fallthrough on purpose, to process only the ints entered, but in the right order.
+ switch(ints.length) {
+ case 4:
+ assertTrue(rpt.contains(String.format("max_objects(%d)", ints[3])));
+ case 3:
+ assertTrue(rpt.contains(String.format("max_range(%d)", ints[2])));
+ case 2:
+ assertTrue(rpt.contains(String.format("used(%d)", ints[1])));
+ case 1:
+ assertTrue(rpt.contains(String.format("count(%d)", ints[0])));
+ }
+ }
+
+ @Test
+ public void settings() throws CadiException {
+ Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
+ check(intPool,0,0,Pool.MAX_RANGE,Pool.MAX_OBJECTS);
+
+ // Check MaxObjects, min is 0
+ intPool.setMaxObjects(-10);
+ check(intPool,0,0,Pool.MAX_RANGE,0);
+
+ intPool.setMaxObjects(10);
+ check(intPool,0,0,Pool.MAX_RANGE,10);
+
+ // Check MaxRange, min is 0
+ intPool.setMaxRange(-10);
+ check(intPool,0,0,0,10);
+
+ intPool.setMaxRange(2);
+ check(intPool,0,0,2,10);
+
+ // Validate Priming
+ intPool.prime(3);
+ check(intPool,3,3,2,10);
+
+ // Drain
+ intPool.drain();
+ check(intPool,0,0,2,10);
+ }
+
+ @Test
+ public void range() throws CadiException {
+ Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
+ intPool.setMaxRange(2);
+ check(intPool,0,0,2);
+
+ // Prime
+ intPool.prime(3);
+ check(intPool,3,3,2);
+
+ // Using 3 leaves count (in Pool) and Used (by System) 3
+ List<Pooled<Integer>> using = new ArrayList<>();
+ for(int i=0;i<3;++i) {
+ using.add(intPool.get());
+ }
+ check(intPool,0,3,2);
+
+ // Using 3 more creates more Objects, and uses immediately
+ for(int i=0;i<3;++i) {
+ using.add(intPool.get());
+ }
+ check(intPool,0,6,2);
+
+ // Clean out all Objects in possession, but there are 6 Objects not returned yet.
+ intPool.drain();
+ check(intPool,0,6,2);
+
+ // Returning Objects
+ for(Pooled<Integer> i : using) {
+ i.done();
+ }
+
+ // Since Range is 2, keep only 2, and destroy the rest
+ check(intPool,2,2,2);
+
+ // Shutdown (helpful for stopping Services) involves turning off range
+ intPool.setMaxRange(0).drain();
+ check(intPool,0,0,0);
+ }
+
+ @Test
+ public void tooManyObjects() throws CadiException {
+ /*
+ * It should be noted that "tooManyObjects" isn't enforced by the Pool, because Objects are not
+ * tracked (other than used) once they leave the pool.
+ *
+ * It is information that using entities, like Thread Pools, can use to limit creations of expensive objects
+ */
+ Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
+ intPool.setMaxObjects(10).setMaxRange(2);
+ check(intPool,0,0,2,10);
+
+ assertFalse(intPool.tooManyObjects());
+
+ // Obtain up to maxium Objects
+ List<Pooled<Integer>> using = new ArrayList<>();
+ for(int i=0;i<10;++i) {
+ using.add(intPool.get());
+ }
+
+ check(intPool,0,10,2,10);
+ assertFalse(intPool.tooManyObjects());
+
+ using.add(intPool.get());
+ check(intPool,0,11,2,10);
+ assertTrue(intPool.tooManyObjects());
+
+ // Returning Objects
+ for(Pooled<Integer> i : using) {
+ i.done();
+ }
+
+ // Returning Objects puts Pool back in range
+ check(intPool,2,2,2,10);
+ assertFalse(intPool.tooManyObjects());
+
+ }
+
+ @Test
+ public void bulkTest() throws CadiException {
+ Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
+
+ intPool.prime(10);
+ // Remove all of the invalid items (in this case, odd numbers)
+ assertFalse(intPool.validate());
+
+ // Make sure we got them all
+ assertTrue(intPool.validate());
+
+ // Get an item from the pool
+ Pooled<Integer> gotten = intPool.get();
+ assertThat(gotten.content, is(0));
+
+ // finalize that item, then check the next one to make sure we actually purged
+ // the odd numbers
+ gotten = intPool.get();
+ assertThat(gotten.content, is(2));
+
+ intPool.drain();
+
+ }
+
+ @Test
+ public void loggingTest() {
+ Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
+
+ // Log to Log.NULL for coverage
+ intPool.log(Log.Type.info,"Test log output");
+
+ intPool.setLogger(new CustomLogger());
+ intPool.log(Log.Type.info,"Test log output");
+
+ assertThat(sb.toString(), is("Test log output"));
+ }
+
+}
Code Review / ccsdk / apps.git / blobdiff