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authorJim Hahn <jrh3@att.com>2018-06-13 12:23:26 -0400
committerJim Hahn <jrh3@att.com>2018-06-20 15:19:50 -0400
commit0b8f4922ebebcf421fb5bc6c25b22380edef6270 (patch)
treef59e8bdeb2b2bcf0aa4ca8f79c9e253f89c4fb17 /integrity-audit/src/main
parent5c04cdde760ff9f92235f29f8892977853bce864 (diff)
IntegrityAudit - remove latches from non-test code
Change-Id: I5d5cc7d581f78d5551e2fe7447720403bb63ada2 Issue-ID: POLICY-908 Signed-off-by: Jim Hahn <jrh3@att.com>
Diffstat (limited to 'integrity-audit/src/main')
-rw-r--r--integrity-audit/src/main/java/org/onap/policy/common/ia/AuditThread.java80
-rw-r--r--integrity-audit/src/main/java/org/onap/policy/common/ia/IntegrityAudit.java49
2 files changed, 53 insertions, 76 deletions
diff --git a/integrity-audit/src/main/java/org/onap/policy/common/ia/AuditThread.java b/integrity-audit/src/main/java/org/onap/policy/common/ia/AuditThread.java
index f1839b12..58ed8b99 100644
--- a/integrity-audit/src/main/java/org/onap/policy/common/ia/AuditThread.java
+++ b/integrity-audit/src/main/java/org/onap/policy/common/ia/AuditThread.java
@@ -25,10 +25,7 @@ import java.util.Comparator;
import java.util.Date;
import java.util.List;
import java.util.Properties;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
-
import org.onap.policy.common.ia.jpa.IntegrityAuditEntity;
import org.onap.policy.common.logging.eelf.MessageCodes;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
@@ -108,18 +105,6 @@ public class AuditThread extends Thread {
private IntegrityAudit integrityAudit;
/**
- * A latch is taken from this queue before starting an audit. May be {@code null}. Used by JUnit
- * tests.
- */
- private BlockingQueue<CountDownLatch> auditLatchQueue;
-
- /**
- * Latch to be decremented when the next audit completes. May be {@code null}. Used by JUnit
- * tests to wait for an audit to complete.
- */
- private CountDownLatch auditCompletionLatch = null;
-
- /**
* AuditThread constructor.
*
* @param resourceName the resource name
@@ -133,7 +118,7 @@ public class AuditThread extends Thread {
int integrityAuditPeriodSeconds, IntegrityAudit integrityAudit) throws IntegrityAuditException {
this(resourceName, persistenceUnit, properties, TimeUnit.SECONDS.toMillis(integrityAuditPeriodSeconds),
- integrityAudit, null);
+ integrityAudit);
}
/**
@@ -148,13 +133,12 @@ public class AuditThread extends Thread {
* @throws IntegrityAuditException if an error occurs
*/
public AuditThread(String resourceName, String persistenceUnit, Properties properties, long integrityAuditMillis,
- IntegrityAudit integrityAudit, BlockingQueue<CountDownLatch> queue) throws IntegrityAuditException {
+ IntegrityAudit integrityAudit) throws IntegrityAuditException {
this.resourceName = resourceName;
this.persistenceUnit = persistenceUnit;
this.properties = properties;
this.integrityAuditPeriodMillis = integrityAuditMillis;
this.integrityAudit = integrityAudit;
- this.auditLatchQueue = queue;
/*
* The DbDAO Constructor registers this node in the IntegrityAuditEntity table. Each
@@ -174,14 +158,8 @@ public class AuditThread extends Thread {
logger.info("AuditThread.run: Entering");
try {
- /*
- * For JUnit testing: wait for the first latch, decrement it to indicate that the thread
- * has started, and then wait for the next latch, before we actually start doing
- * anything. These simply return if there is no latch queue defined.
- */
- getNextLatch();
- decrementLatch();
- getNextLatch();
+ // for junit testing
+ runStarted();
/*
* Triggers change in designation, unless no other viable candidate.
@@ -284,11 +262,8 @@ public class AuditThread extends Thread {
* property, otherwise just sleep the normal interval.
*/
if (auditCompleted) {
- // indicate that an audit has completed
- decrementLatch();
-
- // don't start the next audit cycle until a latch has been provided
- getNextLatch();
+ // for junit testing: indicate that an audit has completed
+ auditCompleted();
if (logger.isDebugEnabled()) {
logger.debug("AuditThread.run: Audit completed; resourceName=" + this.resourceName
@@ -342,29 +317,6 @@ public class AuditThread extends Thread {
}
/**
- * Gets the next audit-completion latch from the queue. Blocks, if the queue is empty.
- *
- * @throws InterruptedException if interrupted while waiting
- */
- private void getNextLatch() throws InterruptedException {
- BlockingQueue<CountDownLatch> queue = this.auditLatchQueue;
- if (queue != null) {
- this.auditCompletionLatch = queue.take();
- }
- }
-
- /**
- * Decrements the current audit-completion latch, if any.
- */
- private void decrementLatch() {
- CountDownLatch latch = this.auditCompletionLatch;
- if (latch != null) {
- this.auditCompletionLatch = null;
- latch.countDown();
- }
- }
-
- /**
* Determines if an exception is an InterruptedException or was caused by an
* InterruptedException.
*
@@ -788,6 +740,26 @@ public class AuditThread extends Thread {
}
/**
+ * Indicates that the {@link #run()} method has started. This method simply returns,
+ * and may overridden by junit tests.
+ *
+ * @throws InterruptedException
+ */
+ public void runStarted() throws InterruptedException {
+ // does nothing
+ }
+
+ /**
+ * Indicates that an audit has completed. This method simply returns, and may
+ * overridden by junit tests.
+ *
+ * @throws InterruptedException
+ */
+ public void auditCompleted() throws InterruptedException {
+ // does nothing
+ }
+
+ /**
* Adjusts the thread-sleep-interval to be used when an audit has <i>not</i> been completed.
* Used by JUnit tests.
*
diff --git a/integrity-audit/src/main/java/org/onap/policy/common/ia/IntegrityAudit.java b/integrity-audit/src/main/java/org/onap/policy/common/ia/IntegrityAudit.java
index 9abdbe52..b3330faf 100644
--- a/integrity-audit/src/main/java/org/onap/policy/common/ia/IntegrityAudit.java
+++ b/integrity-audit/src/main/java/org/onap/policy/common/ia/IntegrityAudit.java
@@ -21,9 +21,6 @@
package org.onap.policy.common.ia;
import java.util.Properties;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.CountDownLatch;
-
import org.onap.policy.common.ia.IntegrityAuditProperties.NodeTypeEnum;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
@@ -217,37 +214,20 @@ public class IntegrityAudit {
* @throws IntegrityAuditException if an error occurs
*/
public void startAuditThread() throws IntegrityAuditException {
- startAuditThread(null);
- }
-
- /**
- * Starts the audit thread.
- *
- * @param queue the queue
- * @return {@code true} if the thread was started, {@code false} otherwise
- * @throws IntegrityAuditException if an error occurs
- */
- protected boolean startAuditThread(BlockingQueue<CountDownLatch> queue) throws IntegrityAuditException {
-
logger.info("startAuditThread: Entering");
- boolean success = false;
-
if (integrityAuditPeriodMillis >= 0) {
- this.auditThread = new AuditThread(this.resourceName, this.persistenceUnit, this.properties,
- integrityAuditPeriodMillis, this, queue);
+ this.auditThread = makeAuditThread(this.resourceName, this.persistenceUnit, this.properties, integrityAuditPeriodMillis);
logger.info("startAuditThread: Audit started and will run every " + integrityAuditPeriodMillis / 1000
+ " seconds");
this.auditThread.start();
- success = true;
+
} else {
logger.info("startAuditThread: Suppressing integrity audit, integrityAuditPeriodSeconds="
+ integrityAuditPeriodMillis / 1000);
}
logger.info("startAuditThread: Exiting");
-
- return success;
}
/**
@@ -299,4 +279,29 @@ public class IntegrityAudit {
return !this.auditThread.isAlive();
}
}
+
+ /**
+ *
+ * @return {@code true} if an audit thread exists, {@code false} otherwise
+ */
+ protected boolean haveAuditThread() {
+ return (this.auditThread != null);
+ }
+
+ /**
+ * Creates an audit thread. May be overridden by junit tests.
+ *
+ * @param resourceName2
+ * @param persistenceUnit2
+ * @param properties2
+ * @param integrityAuditPeriodMillis2
+ *
+ * @return a new audit thread
+ * @throws IntegrityAuditException
+ */
+ protected AuditThread makeAuditThread(String resourceName2, String persistenceUnit2, Properties properties2,
+ long integrityAuditPeriodMillis2) throws IntegrityAuditException {
+
+ return new AuditThread(resourceName2, persistenceUnit2, properties2, integrityAuditPeriodMillis2, this);
+ }
}