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-rw-r--r--utils-test/src/test/java/org/onap/policy/common/utils/test/log/logback/ExtractAppenderTest.java880
1 files changed, 437 insertions, 443 deletions
diff --git a/utils-test/src/test/java/org/onap/policy/common/utils/test/log/logback/ExtractAppenderTest.java b/utils-test/src/test/java/org/onap/policy/common/utils/test/log/logback/ExtractAppenderTest.java
index 6ef36822..eee60c38 100644
--- a/utils-test/src/test/java/org/onap/policy/common/utils/test/log/logback/ExtractAppenderTest.java
+++ b/utils-test/src/test/java/org/onap/policy/common/utils/test/log/logback/ExtractAppenderTest.java
@@ -23,6 +23,10 @@ package org.onap.policy.common.utils.test.log.logback;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
+import ch.qos.logback.classic.Level;
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
@@ -35,450 +39,440 @@ import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.LoggerFactory;
-import ch.qos.logback.classic.Level;
-import ch.qos.logback.classic.Logger;
-import ch.qos.logback.classic.spi.ILoggingEvent;
-
public class ExtractAppenderTest {
- /**
- * Milliseconds to wait for a thread to terminate.
- */
- private static final long THREAD_WAIT_MS = 5000l;
+ /**
+ * Milliseconds to wait for a thread to terminate.
+ */
+ private static final long THREAD_WAIT_MS = 5000L;
+
+ private static Logger logger;
+
+ private List<Thread> threads;
+
+ @BeforeClass
+ public static void setUpBeforeClass() throws Exception {
+ logger = (Logger) LoggerFactory.getLogger(ExtractAppenderTest.class);
+ logger.setLevel(Level.INFO);
+ }
+
+ @Before
+ public void setUp() throws Exception {
+ threads = new LinkedList<>();
+ }
+
+ /**
+ * Tear down all appenders and threads.
+ */
+ @After
+ public void tearDown() throws Exception {
+ logger.detachAndStopAllAppenders();
+
+ for (Thread p : threads) {
+ p.interrupt();
+ p.join(THREAD_WAIT_MS);
+ }
+ }
+
+ @Test
+ public void testExtractAppender() {
+ AtomicInteger count = new AtomicInteger(0);
+
+ ExtractAppender appender = new ExtractAppender() {
+ @Override
+ protected void append(ILoggingEvent event) {
+ count.incrementAndGet();
+ super.append(event);
+ }
+ };
+
+ addAppender(appender);
+
+ logger.info("hello");
+ logger.info("world");
+
+ // "append" should always be called
+ assertEquals(2, count.get());
+
+ // appender with no patterns - everything should match
+ assertEquals(strList("hello", "world"), appender.getExtracted());
+
+ // add a pattern and verify match
+ appender.setPattern("abc[0-9]");
+ logger.info("hello abc1");
+
+ // this should not match
+ logger.info("hello def2");
+
+ assertEquals(4, count.get());
+ assertEquals(strList("hello", "world", "abc1"), appender.getExtracted());
+ }
+
+ @Test
+ public void testExtractAppenderStringArray() {
+ AtomicInteger count = new AtomicInteger(0);
+
+ ExtractAppender appender = new ExtractAppender("abc[0-9]", "def[0-9]") {
+ @Override
+ protected void append(ILoggingEvent event) {
+ count.incrementAndGet();
+ super.append(event);
+ }
+ };
+
+ addAppender(appender);
+
+ logger.info("hello abc1 world");
+ logger.info("world ghi2 world"); // no match
+ logger.info("world def3 world");
+ logger.info("hello abc4");
+ logger.info("abc5 world");
+ logger.info("hello def6");
+ logger.info("ghi7 world"); // no match
+ logger.info("def8 world");
+
+ // "append" should always be called
+ assertEquals(8, count.get());
+
+ assertEquals(strList("abc1", "def3", "abc4", "abc5", "def6", "def8"), appender.getExtracted());
+
+ appender.setPattern("ghi[0-9]");
+ logger.info("hello abc9");
+ logger.info("hello ghi9");
+
+ // this should not match
+ logger.info("hello xyz");
+
+ assertEquals(11, count.get());
+ assertEquals(strList("abc1", "def3", "abc4", "abc5", "def6", "def8", "abc9", "ghi9"), appender.getExtracted());
+ }
+
+ @Test
+ public void testExtractAppenderQueueStringArray() {
+ // no. of matches allowed in the list
+ int nallowed = 3;
+
+ AtomicInteger count = new AtomicInteger(0);
+
+ LinkedList<String> queue = new LinkedList<String>() {
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public boolean offer(String element) {
+ if (count.incrementAndGet() <= nallowed) {
+ return super.offer(element);
+
+ } else {
+ return false;
+ }
+ }
+ };
+
+ ExtractAppender appender = new ExtractAppender(queue, "abc[0-9]");
+ addAppender(appender);
+
+ // these shouldn't match
+ for (int x = 0; x < 10; ++x) {
+ logger.info("xyz");
+ }
+
+ int nmatches = 10;
+
+ LinkedList<String> expected = new LinkedList<>();
+
+ for (int x = 0; x < nmatches; ++x) {
+ String msg = "abc" + x;
+ logger.info(msg + " world");
+
+ if (x < nallowed) {
+ expected.add(msg);
+ }
+ }
+
+ // "offer" should always be called for a match
+ assertEquals(nmatches, count.get());
+
+ assertEquals(expected, appender.getExtracted());
+ }
+
+ @Test
+ public void testAppendILoggingEvent_NoPatterns() {
+ ExtractAppender appender = makeAppender();
+
+ logger.info("hello");
+ logger.info("world");
+
+ assertEquals(strList("hello", "world"), appender.getExtracted());
+ }
+
+ @Test
+ public void testAppendILoggingEvent_MatchFirstPattern() {
+ ExtractAppender appender = makeAppender("abc[0-9]", "def[0-9]");
+
+ logger.info("hello abc1");
+ logger.info("world xyz2");
+
+ assertEquals(strList("abc1"), appender.getExtracted());
+ }
+
+ @Test
+ public void testAppendILoggingEvent_MatchLastPattern() {
+ ExtractAppender appender = makeAppender("abc[0-9]", "def[0-9]");
+
+ logger.info("hello def1");
+ logger.info("world xyz2");
+
+ assertEquals(strList("def1"), appender.getExtracted());
+ }
+
+ @Test
+ public void testAppendILoggingEvent_Group1() {
+ ExtractAppender appender = makeAppender("hello (abc)|(xyz)", "def[0-9]");
+
+ logger.info("hello abc, world!");
+ logger.info("world abc");
+
+ assertEquals(strList("abc"), appender.getExtracted());
+ }
+
+ @Test
+ public void testAppendILoggingEvent_Group3() {
+ ExtractAppender appender = makeAppender("hello (abc)|(pdq)|(xyz)", "def[0-9]");
+
+ logger.info("say hello xyz, world!");
+ logger.info("world abc");
+
+ assertEquals(strList("xyz"), appender.getExtracted());
+ }
+
+ @Test
+ public void testAppendILoggingEvent_NoGroup() {
+ ExtractAppender appender = makeAppender("hello abc");
+
+ logger.info("say hello abc, world!");
+ logger.info("world abc");
+
+ assertEquals(strList("hello abc"), appender.getExtracted());
+ }
+
+ @Test
+ public void testGetExtracted() {
+ ExtractAppender appender = makeAppender("abc[1-9]");
+
+ logger.info("hello abc1 world");
+ logger.info("world ghi2 world"); // no match
+ logger.info("hello abc3");
+
+ List<String> oldlst = appender.getExtracted();
+ assertEquals(strList("abc1", "abc3"), oldlst);
+ assertEquals(oldlst, appender.getExtracted());
+
+ logger.info("abc9");
+ assertEquals(strList("abc1", "abc3", "abc9"), appender.getExtracted());
+ }
+
+ @Test
+ public void testClearExtractions() {
+ final ExtractAppender appender = makeAppender("abc[1-9]");
+
+ logger.info("hello abc1 world");
+ logger.info("world ghi2 world");
+ logger.info("hello abc3");
+
+ assertEquals(strList("abc1", "abc3"), appender.getExtracted());
+
+ appender.clearExtractions();
+
+ // list should be empty now
+ assertEquals(strList(), appender.getExtracted());
+
+ logger.info("hello abc4 world");
+ logger.info("world ghi5 world");
+ logger.info("hello abc6");
+
+ // list should only contain the new items
+ assertEquals(strList("abc4", "abc6"), appender.getExtracted());
+ }
+
+ @Test
+ public void testSetPattern() {
+ final ExtractAppender appender = makeAppender("abc[1-9]");
+
+ logger.info("hello abc1 world");
+ logger.info("world ghi2 world"); // no match
+ logger.info("hello abc3");
+
+ assertEquals(strList("abc1", "abc3"), appender.getExtracted());
- private static Logger logger;
-
- private List<Thread> threads;
-
- @BeforeClass
- public static void setUpBeforeClass() throws Exception {
- logger = (Logger) LoggerFactory.getLogger(ExtractAppenderTest.class);
- logger.setLevel(Level.INFO);
- }
-
- @Before
- public void setUp() throws Exception {
- threads = new LinkedList<>();
- }
-
- @After
- public void tearDown() throws Exception {
- logger.detachAndStopAllAppenders();
-
- for (Thread p : threads) {
- p.interrupt();
- p.join(THREAD_WAIT_MS);
- }
- }
-
- @Test
- public void testExtractAppender() {
- AtomicInteger count = new AtomicInteger(0);
-
- ExtractAppender p = new ExtractAppender() {
- @Override
- protected void append(ILoggingEvent event) {
- count.incrementAndGet();
- super.append(event);
- }
- };
-
- addAppender(p);
-
- logger.info("hello");
- logger.info("world");
-
- // "append" should always be called
- assertEquals(2, count.get());
-
- // appender with no patterns - everything should match
- assertEquals(strList("hello", "world"), p.getExtracted());
-
- // add a pattern and verify match
- p.setPattern("abc[0-9]");
- logger.info("hello abc1");
-
- // this should not match
- logger.info("hello def2");
-
- assertEquals(4, count.get());
- assertEquals(strList("hello", "world", "abc1"), p.getExtracted());
- }
-
- @Test
- public void testExtractAppenderStringArray() {
- AtomicInteger count = new AtomicInteger(0);
-
- ExtractAppender p = new ExtractAppender("abc[0-9]", "def[0-9]") {
- @Override
- protected void append(ILoggingEvent event) {
- count.incrementAndGet();
- super.append(event);
- }
- };
-
- addAppender(p);
-
- logger.info("hello abc1 world");
- logger.info("world ghi2 world"); // no match
- logger.info("world def3 world");
- logger.info("hello abc4");
- logger.info("abc5 world");
- logger.info("hello def6");
- logger.info("ghi7 world"); // no match
- logger.info("def8 world");
-
- // "append" should always be called
- assertEquals(8, count.get());
-
- assertEquals(strList("abc1", "def3", "abc4", "abc5", "def6", "def8"), p.getExtracted());
-
- p.setPattern("ghi[0-9]");
- logger.info("hello abc9");
- logger.info("hello ghi9");
-
- // this should not match
- logger.info("hello xyz");
-
- assertEquals(11, count.get());
- assertEquals(strList("abc1", "def3", "abc4", "abc5", "def6", "def8", "abc9", "ghi9"), p.getExtracted());
- }
-
- @Test
- public void testExtractAppenderQueueStringArray() {
- // no. of matches allowed in the list
- int nallowed = 3;
-
- AtomicInteger count = new AtomicInteger(0);
-
- LinkedList<String> queue = new LinkedList<String>() {
- private static final long serialVersionUID = 1L;
-
- @Override
- public boolean offer(String e) {
- if(count.incrementAndGet() <= nallowed) {
- return super.offer(e);
-
- } else {
- return false;
- }
- }
- };
-
- ExtractAppender p = new ExtractAppender(queue, "abc[0-9]");
- addAppender(p);
-
- // these shouldn't match
- for(int x = 0; x < 10; ++x) {
- logger.info("xyz");
- }
-
- int nmatches = 10;
-
- LinkedList<String> expected = new LinkedList<>();
-
- for(int x = 0; x < nmatches; ++x) {
- String msg = "abc" + x;
- logger.info(msg + " world");
-
- if(x < nallowed) {
- expected.add(msg);
- }
- }
-
- // "offer" should always be called for a match
- assertEquals(nmatches, count.get());
-
- assertEquals(expected, p.getExtracted());
- }
-
- @Test
- public void testAppendILoggingEvent_NoPatterns() {
- ExtractAppender p = makeAppender();
-
- logger.info("hello");
- logger.info("world");
-
- assertEquals(strList("hello", "world"), p.getExtracted());
- }
-
- @Test
- public void testAppendILoggingEvent_MatchFirstPattern() {
- ExtractAppender p = makeAppender("abc[0-9]", "def[0-9]");
-
- logger.info("hello abc1");
- logger.info("world xyz2");
-
- assertEquals(strList("abc1"), p.getExtracted());
- }
-
- @Test
- public void testAppendILoggingEvent_MatchLastPattern() {
- ExtractAppender p = makeAppender("abc[0-9]", "def[0-9]");
-
- logger.info("hello def1");
- logger.info("world xyz2");
-
- assertEquals(strList("def1"), p.getExtracted());
- }
-
- @Test
- public void testAppendILoggingEvent_Group1() {
- ExtractAppender p = makeAppender("hello (abc)|(xyz)", "def[0-9]");
-
- logger.info("hello abc, world!");
- logger.info("world abc");
-
- assertEquals(strList("abc"), p.getExtracted());
- }
-
- @Test
- public void testAppendILoggingEvent_Group3() {
- ExtractAppender p = makeAppender("hello (abc)|(pdq)|(xyz)", "def[0-9]");
-
- logger.info("say hello xyz, world!");
- logger.info("world abc");
-
- assertEquals(strList("xyz"), p.getExtracted());
- }
-
- @Test
- public void testAppendILoggingEvent_NoGroup() {
- ExtractAppender p = makeAppender("hello abc");
-
- logger.info("say hello abc, world!");
- logger.info("world abc");
-
- assertEquals(strList("hello abc"), p.getExtracted());
- }
-
- @Test
- public void testGetExtracted() {
- ExtractAppender p = makeAppender("abc[1-9]");
-
- logger.info("hello abc1 world");
- logger.info("world ghi2 world"); // no match
- logger.info("hello abc3");
-
- List<String> oldlst = p.getExtracted();
- assertEquals(strList("abc1", "abc3"), oldlst);
- assertEquals(oldlst, p.getExtracted());
-
- logger.info("abc9");
- assertEquals(strList("abc1", "abc3", "abc9"), p.getExtracted());
- }
-
- @Test
- public void testClearExtractions() {
- ExtractAppender p = makeAppender("abc[1-9]");
-
- logger.info("hello abc1 world");
- logger.info("world ghi2 world");
- logger.info("hello abc3");
-
- assertEquals(strList("abc1", "abc3"), p.getExtracted());
-
- p.clearExtractions();
-
- // list should be empty now
- assertEquals(strList(), p.getExtracted());
-
- logger.info("hello abc4 world");
- logger.info("world ghi5 world");
- logger.info("hello abc6");
-
- // list should only contain the new items
- assertEquals(strList("abc4", "abc6"), p.getExtracted());
- }
-
- @Test
- public void testSetPattern() {
- ExtractAppender p = makeAppender("abc[1-9]");
-
- logger.info("hello abc1 world");
- logger.info("world ghi2 world"); // no match
- logger.info("hello abc3");
-
- assertEquals(strList("abc1", "abc3"), p.getExtracted());
-
- p.setPattern("ghi[0-9]");
-
- logger.info("world ghi4 world"); // this should match now
- logger.info("hello abc5"); // this should still match
- logger.info("hello xyz5"); // no match
-
- assertEquals(strList("abc1", "abc3", "ghi4", "abc5"), p.getExtracted());
- }
-
- /**
- * Launches threads doing everything in parallel to ensure nothing crashes.
- *
- * @throws Exception
- */
- @Test
- public void test_MultiThreaded() throws Exception {
- // when to stop
- long tend = System.currentTimeMillis() + 250;
-
- // maximum number of items allowed in the extraction list
- int maxItems = 10;
-
- // this will be set if one of the threads generates an error
- AtomicBoolean err = new AtomicBoolean(false);
-
- // extracted messages go here - this is a finite-length queue since
- // we don't know how many messages may actually be logged
- LinkedList<String> queue = new LinkedList<String>() {
- private static final long serialVersionUID = 1L;
-
- @Override
- public boolean offer(String e) {
- if (size() < maxItems) {
- return super.offer(e);
- } else {
- return false;
- }
- }
- };
-
- ExtractAppender app = new ExtractAppender(queue, "abc[1-9]");
- addAppender(app);
-
- // create some threads to add another pattern
- addThread(tend, err, xtxt -> {
- app.setPattern("def[0-9]");
- });
-
- // create some threads to log "abc" messages
- addThread(tend, err, xtxt -> {
- logger.info("hello abc" + xtxt + "world!");
- });
-
- // create some threads to log "def" messages
- addThread(tend, err, xtxt -> {
- logger.info("hello def" + xtxt + "world!");
- });
-
- // create some threads to get extractions
- addThread(tend, err, xtxt -> {
- app.getExtracted();
- });
-
- // create some threads to clear extractions
- addThread(tend, err, xtxt -> {
- app.clearExtractions();
-
- // don't want to clear the list too frequently
- // so sleep a bit in between
- try {
- Thread.sleep(10 + Integer.valueOf(xtxt));
-
- } catch (InterruptedException e) {
- Thread.currentThread().interrupt();
- throw e;
- }
- });
-
- /*
- * Finally ready to start.
- */
-
- // start all of the threads
- for (Thread t : threads) {
- t.setDaemon(true);
- t.start();
- }
-
- // wait for each thread to stop
- for (Thread t : threads) {
- t.join(THREAD_WAIT_MS);
- assertFalse(t.isAlive());
- }
-
- // ensure none of the threads threw an exception
- assertFalse(err.get());
- }
-
- /**
- * Adds multiple threads to perform some function repeatedly until the given
- * time is reached.
- *
- * @param tend
- * time, in milliseconds, when the test should terminate
- * @param haderr
- * this will be set to {@code true} if the function throws an
- * exception other than an InterruptedException
- * @param func
- * function to be repeatedly invoked
- */
- private void addThread(long tend, AtomicBoolean haderr, VoidFunction func) {
- // number of threads of each type to create
- int neach = 3;
-
- for (int x = 0; x < neach; ++x) {
- String xtxt = String.valueOf(x);
-
- threads.add(new Thread() {
- @Override
- public void run() {
- try {
- while (System.currentTimeMillis() < tend) {
- func.apply(xtxt);
- }
-
- } catch (InterruptedException ex) {
- Thread.currentThread().interrupt();
-
- } catch (Exception ex) {
- haderr.set(true);
- }
- }
- });
-
- }
- }
-
- /**
- * Makes an appender that recognizes the given set of strings.
- *
- * @param strings
- * regular expressions to be matched
- * @return a new appender
- */
- private ExtractAppender makeAppender(String... strings) {
- ExtractAppender p = new ExtractAppender(strings);
-
- addAppender(p);
-
- return p;
- }
-
- /**
- * Adds an appender to the logger.
- *
- * @param app
- * appender to be added
- */
- private void addAppender(ExtractAppender app) {
- app.setContext(logger.getLoggerContext());
- app.start();
-
- logger.addAppender(app);
- }
-
- /**
- * Converts an array of strings into a list of strings.
- *
- * @param strings
- * array of strings
- * @return a list of the strings
- */
- private List<String> strList(String... strings) {
- return Arrays.asList(strings);
- }
-
- @FunctionalInterface
- public interface VoidFunction {
- public void apply(String text) throws InterruptedException;
- }
+ appender.setPattern("ghi[0-9]");
+
+ logger.info("world ghi4 world"); // this should match now
+ logger.info("hello abc5"); // this should still match
+ logger.info("hello xyz5"); // no match
+
+ assertEquals(strList("abc1", "abc3", "ghi4", "abc5"), appender.getExtracted());
+ }
+
+ /**
+ * Launches threads doing everything in parallel to ensure nothing crashes.
+ */
+ @Test
+ public void test_MultiThreaded() throws Exception {
+ // when to stop
+ long tend = System.currentTimeMillis() + 250;
+
+ // maximum number of items allowed in the extraction list
+ int maxItems = 10;
+
+ // this will be set if one of the threads generates an error
+ AtomicBoolean err = new AtomicBoolean(false);
+
+ // extracted messages go here - this is a finite-length queue since
+ // we don't know how many messages may actually be logged
+ LinkedList<String> queue = new LinkedList<String>() {
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public boolean offer(String element) {
+ if (size() < maxItems) {
+ return super.offer(element);
+ } else {
+ return false;
+ }
+ }
+ };
+
+ ExtractAppender app = new ExtractAppender(queue, "abc[1-9]");
+ addAppender(app);
+
+ // create some threads to add another pattern
+ addThread(tend, err, xtxt -> {
+ app.setPattern("def[0-9]");
+ });
+
+ // create some threads to log "abc" messages
+ addThread(tend, err, xtxt -> {
+ logger.info("hello abc" + xtxt + "world!");
+ });
+
+ // create some threads to log "def" messages
+ addThread(tend, err, xtxt -> {
+ logger.info("hello def" + xtxt + "world!");
+ });
+
+ // create some threads to get extractions
+ addThread(tend, err, xtxt -> {
+ app.getExtracted();
+ });
+
+ // create some threads to clear extractions
+ addThread(tend, err, xtxt -> {
+ app.clearExtractions();
+
+ // don't want to clear the list too frequently
+ // so sleep a bit in between
+ try {
+ Thread.sleep(10 + Integer.valueOf(xtxt));
+
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ throw e;
+ }
+ });
+
+ /*
+ * Finally ready to start.
+ */
+
+ // start all of the threads
+ for (Thread t : threads) {
+ t.setDaemon(true);
+ t.start();
+ }
+
+ // wait for each thread to stop
+ for (Thread t : threads) {
+ t.join(THREAD_WAIT_MS);
+ assertFalse(t.isAlive());
+ }
+
+ // ensure none of the threads threw an exception
+ assertFalse(err.get());
+ }
+
+ /**
+ * Adds multiple threads to perform some function repeatedly until the given time is reached.
+ *
+ * @param tend time, in milliseconds, when the test should terminate
+ * @param haderr this will be set to {@code true} if the function throws an exception other than
+ * an InterruptedException
+ * @param func function to be repeatedly invoked
+ */
+ private void addThread(long tend, AtomicBoolean haderr, VoidFunction func) {
+ // number of threads of each type to create
+ int neach = 3;
+
+ for (int x = 0; x < neach; ++x) {
+ String xtxt = String.valueOf(x);
+
+ threads.add(new Thread() {
+ @Override
+ public void run() {
+ try {
+ while (System.currentTimeMillis() < tend) {
+ func.apply(xtxt);
+ }
+
+ } catch (InterruptedException ex) {
+ Thread.currentThread().interrupt();
+
+ } catch (Exception ex) {
+ haderr.set(true);
+ }
+ }
+ });
+
+ }
+ }
+
+ /**
+ * Makes an appender that recognizes the given set of strings.
+ *
+ * @param strings regular expressions to be matched
+ * @return a new appender
+ */
+ private ExtractAppender makeAppender(String... strings) {
+ ExtractAppender appender = new ExtractAppender(strings);
+
+ addAppender(appender);
+
+ return appender;
+ }
+
+ /**
+ * Adds an appender to the logger.
+ *
+ * @param app appender to be added
+ */
+ private void addAppender(ExtractAppender app) {
+ app.setContext(logger.getLoggerContext());
+ app.start();
+
+ logger.addAppender(app);
+ }
+
+ /**
+ * Converts an array of strings into a list of strings.
+ *
+ * @param strings array of strings
+ * @return a list of the strings
+ */
+ private List<String> strList(String... strings) {
+ return Arrays.asList(strings);
+ }
+
+ @FunctionalInterface
+ public interface VoidFunction {
+ public void apply(String text) throws InterruptedException;
+ }
}