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-rw-r--r--vid-app-common/src/main/java/org/onap/vid/utils/Logging.java25
-rw-r--r--vid-app-common/src/test/java/org/onap/vid/utils/LoggingUtilsTest.java37
2 files changed, 59 insertions, 3 deletions
diff --git a/vid-app-common/src/main/java/org/onap/vid/utils/Logging.java b/vid-app-common/src/main/java/org/onap/vid/utils/Logging.java
index f9894d1aa..ce811b41c 100644
--- a/vid-app-common/src/main/java/org/onap/vid/utils/Logging.java
+++ b/vid-app-common/src/main/java/org/onap/vid/utils/Logging.java
@@ -35,6 +35,7 @@ import io.joshworks.restclient.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.Map;
+import java.util.Objects;
import java.util.Optional;
import java.util.UUID;
import java.util.concurrent.Callable;
@@ -122,7 +123,7 @@ public class Logging {
}
try {
response.bufferEntity();
- logger.debug("Received {} {} Status: {} . Body: {}", method.name(), url, response.getStatus(), response.readEntity(entityClass));
+ logger.debug("Received {} {} Status: {} . Body: {}", method.name(), url, response.getStatus(), new Substring(response.readEntity(entityClass)));
}
catch (Exception e) {
logger.debug("Received {} {} Status: {} . Failed to read response as {}", method.name(), url, response.getStatus(), entityClass.getName());
@@ -132,7 +133,7 @@ public class Logging {
public <T> void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final HttpResponse<T> response) {
try {
logger.debug("Received {} {} Status: {} . Body: {}", method.name(),
- url, response.getStatus(), IOUtils.toString(response.getRawBody(), StandardCharsets.UTF_8));
+ url, response.getStatus(), new Substring(IOUtils.toString(response.getRawBody(), StandardCharsets.UTF_8)));
response.getRawBody().reset();
}
catch (Exception e) {
@@ -204,6 +205,26 @@ public class Logging {
}
/**
+ * This class defers the toString() and truncation to the point in time where logger needs it.
+ * This will save some bytes in memory if logger will decide to discard the logging (mostly because logging level
+ * is filtering the message out).
+ */
+ static class Substring {
+ private final Object obj;
+ private final int maxLen = 1_000_000;
+
+ public Substring(Object obj) {
+ this.obj = obj;
+ }
+
+ @Override
+ public String toString() {
+ // null safe truncation
+ return StringUtils.left(Objects.toString(obj), maxLen);
+ }
+ }
+
+ /**
* in order to be able to write the correct data while creating the node on a new thread save a copy of the current
* thread's context map, with keys and values of type String.
*/
diff --git a/vid-app-common/src/test/java/org/onap/vid/utils/LoggingUtilsTest.java b/vid-app-common/src/test/java/org/onap/vid/utils/LoggingUtilsTest.java
index c2a1f2877..8c3aa6471 100644
--- a/vid-app-common/src/test/java/org/onap/vid/utils/LoggingUtilsTest.java
+++ b/vid-app-common/src/test/java/org/onap/vid/utils/LoggingUtilsTest.java
@@ -21,15 +21,20 @@
package org.onap.vid.utils;
import static net.javacrumbs.jsonunit.JsonMatchers.jsonEquals;
+import static org.apache.commons.lang3.StringUtils.repeat;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.hasEntry;
+import static org.hamcrest.Matchers.hasToString;
import static org.hamcrest.Matchers.matchesPattern;
+import static org.hamcrest.Matchers.samePropertyValuesAs;
import static org.mockito.ArgumentMatchers.contains;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
import static org.onap.vid.testUtils.RegExMatcher.matchesRegEx;
import static org.testng.AssertJUnit.assertEquals;
@@ -53,6 +58,7 @@ import org.apache.commons.io.IOUtils;
import org.mockito.ArgumentCaptor;
import org.onap.vid.exceptions.GenericUncheckedException;
import org.onap.vid.testUtils.TestUtils;
+import org.onap.vid.utils.Logging.Substring;
import org.slf4j.MDC;
import org.springframework.http.HttpMethod;
import org.testng.annotations.BeforeMethod;
@@ -116,7 +122,7 @@ public class LoggingUtilsTest {
assertEquals("POST", argumentCaptor.getAllValues().get(0));
assertEquals(url, argumentCaptor.getAllValues().get(1));
assertEquals(200, argumentCaptor.getAllValues().get(2));
- assertEquals(TEST_OBJECT_JSON, argumentCaptor.getAllValues().get(3));
+ assertThat(argumentCaptor.getAllValues().get(3), samePropertyValuesAs(new Substring(TEST_OBJECT_JSON)));
}
@Test
@@ -205,6 +211,35 @@ public class LoggingUtilsTest {
}
@Test
+ public void substringClass_givenNull_thenToStringIsNull() {
+ assertThat(new Substring(null), hasToString(equalTo("null")));
+ }
+
+ @Test
+ public void substringClass_givenAnObject_thenToStringIsEqualAndPassThrough() {
+ Object anyObject = mock(Object.class);
+ when(anyObject.toString()).thenReturn(TEST_OBJECT_JSON);
+
+ assertThat(new Substring(anyObject),
+ hasToString(sameInstance(TEST_OBJECT_JSON)));
+ }
+
+ @Test
+ public void substringClass_givenNotLongString_thenToStringIsNotTruncated() {
+ assertThat(new Substring(repeat(TEST_OBJECT_JSON, 100)),
+ hasToString(equalTo(repeat(TEST_OBJECT_JSON, 100))));
+ }
+
+ @Test
+ public void substringClass_givenLongString_thenToStringIsTruncatedToSize() {
+ int expectedLength = 1_000_000; // this is Substring's internal config
+ String headMarker = "head-";
+
+ assertThat(new Substring(headMarker + repeat("x", 2_000_000)),
+ hasToString(equalTo(headMarker + repeat("x", expectedLength - headMarker.length()))));
+ }
+
+ @Test
public void testWithMDCInternal_whenGivenProvider_functionShouldBeExtractedWithMdc() {
Object myAnything = new Object();