io.sentry.marshaller.json.JsonMarshaller Maven / Gradle / Ivy
package io.sentry.marshaller.json;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import io.sentry.event.Breadcrumb;
import io.sentry.event.Event;
import io.sentry.event.Sdk;
import io.sentry.event.interfaces.SentryInterface;
import io.sentry.marshaller.Marshaller;
import io.sentry.util.Util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.OutputStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.zip.GZIPOutputStream;
/**
* Event marshaller using JSON to send the data.
*
* The content can also be compressed with {@link GZIPOutputStream}.
*/
public class JsonMarshaller implements Marshaller {
/**
* Hexadecimal string representing a uuid4 value.
*/
public static final String EVENT_ID = "event_id";
/**
* User-readable representation of this event.
*/
public static final String MESSAGE = "message";
/**
* Indicates when the logging record was created.
*/
public static final String TIMESTAMP = "timestamp";
/**
* The record severity.
*/
public static final String LEVEL = "level";
/**
* The name of the logger which created the record.
*/
public static final String LOGGER = "logger";
/**
* A string representing the platform the client is submitting from.
*/
public static final String PLATFORM = "platform";
/**
* Function call which was the primary perpetrator of this event.
*/
public static final String CULPRIT = "culprit";
/**
* An object representing the SDK name and version.
*/
public static final String SDK = "sdk";
/**
* A map or list of tags for this event.
*/
public static final String TAGS = "tags";
/**
* List of breadcrumbs for this event.
*/
public static final String BREADCRUMBS = "breadcrumbs";
/**
* Map of map of contexts for this event.
*/
public static final String CONTEXTS = "contexts";
/**
* Identifies the host client from which the event was recorded.
*/
public static final String SERVER_NAME = "server_name";
/**
* Identifies the the version of the application.
*/
public static final String RELEASE = "release";
/**
* Identifies the the distribution of the application.
*/
public static final String DIST = "dist";
/**
* Identifies the environment the application is running in.
*/
public static final String ENVIRONMENT = "environment";
/**
* Event fingerprint, a list of strings used to dictate the deduplicating for this event.
*/
public static final String FINGERPRINT = "fingerprint";
/**
* A list of relevant modules and their versions.
*/
public static final String MODULES = "modules";
/**
* An arbitrary mapping of additional metadata to store with the event.
*/
public static final String EXTRA = "extra";
/**
* Checksum for the event, allowing to group events with a similar checksum.
*/
public static final String CHECKSUM = "checksum";
/**
* Default maximum length for a message.
*/
public static final int DEFAULT_MAX_MESSAGE_LENGTH = 1000;
/**
* Date format for ISO 8601.
*/
private static final ThreadLocal ISO_FORMAT = new ThreadLocal() {
@Override
protected DateFormat initialValue() {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
return dateFormat;
}
};
private static final Logger logger = LoggerFactory.getLogger(JsonMarshaller.class);
private final JsonFactory jsonFactory = new JsonFactory();
private final Map, InterfaceBinding> interfaceBindings = new HashMap<>();
/**
* Enables disables the compression of JSON.
*/
private boolean compression = true;
/**
* Maximum length for a message.
*/
private final int maxMessageLength;
/**
* Create instance of JsonMarshaller with default message length.
*/
public JsonMarshaller() {
maxMessageLength = DEFAULT_MAX_MESSAGE_LENGTH;
}
/**
* Create instance of JsonMarshaller with provided the maximum length of the messages.
*
* @param maxMessageLength the maximum message length
*/
public JsonMarshaller(int maxMessageLength) {
this.maxMessageLength = maxMessageLength;
}
@Override
public void marshall(Event event, OutputStream destination) throws IOException {
// Prevent the stream from being closed automatically
destination = new UncloseableOutputStream(destination);
if (compression) {
destination = new GZIPOutputStream(destination);
}
try (JsonGenerator generator = jsonFactory.createGenerator(destination)) {
writeContent(generator, event);
} catch (IOException e) {
logger.error("An exception occurred while serialising the event.", e);
} finally {
try {
destination.close();
} catch (IOException e) {
logger.error("An exception occurred while serialising the event.", e);
}
}
}
@Override
public String getContentType() {
return "application/json";
}
@Override
public String getContentEncoding() {
if (isCompressed()) {
return "gzip";
}
return null;
}
private void writeContent(JsonGenerator generator, Event event) throws IOException {
generator.writeStartObject();
generator.writeStringField(EVENT_ID, formatId(event.getId()));
generator.writeStringField(MESSAGE, Util.trimString(event.getMessage(), maxMessageLength));
generator.writeStringField(TIMESTAMP, ISO_FORMAT.get().format(event.getTimestamp()));
generator.writeStringField(LEVEL, formatLevel(event.getLevel()));
generator.writeStringField(LOGGER, event.getLogger());
generator.writeStringField(PLATFORM, event.getPlatform());
generator.writeStringField(CULPRIT, event.getCulprit());
writeSdk(generator, event.getSdk());
writeTags(generator, event.getTags());
writeBreadcumbs(generator, event.getBreadcrumbs());
writeContexts(generator, event.getContexts());
generator.writeStringField(SERVER_NAME, event.getServerName());
generator.writeStringField(RELEASE, event.getRelease());
generator.writeStringField(DIST, event.getDist());
generator.writeStringField(ENVIRONMENT, event.getEnvironment());
writeExtras(generator, event.getExtra());
writeCollection(generator, FINGERPRINT, event.getFingerprint());
generator.writeStringField(CHECKSUM, event.getChecksum());
writeInterfaces(generator, event.getSentryInterfaces());
generator.writeEndObject();
}
private void writeInterfaces(JsonGenerator generator, Map sentryInterfaces)
throws IOException {
for (Map.Entry interfaceEntry : sentryInterfaces.entrySet()) {
SentryInterface sentryInterface = interfaceEntry.getValue();
if (interfaceBindings.containsKey(sentryInterface.getClass())) {
generator.writeFieldName(interfaceEntry.getKey());
getInterfaceBinding(sentryInterface).writeInterface(generator, interfaceEntry.getValue());
} else {
logger.error("Couldn't parse the content of '{}' provided in {}.",
interfaceEntry.getKey(), sentryInterface);
}
}
}
@SuppressWarnings("unchecked")
private InterfaceBinding getInterfaceBinding(T sentryInterface) {
// Reduces the @SuppressWarnings to a oneliner
return (InterfaceBinding) interfaceBindings.get(sentryInterface.getClass());
}
private void writeExtras(JsonGenerator generator, Map extras) throws IOException {
generator.writeObjectFieldStart(EXTRA);
for (Map.Entry extra : extras.entrySet()) {
generator.writeFieldName(extra.getKey());
safelyWriteObject(generator, extra.getValue());
}
generator.writeEndObject();
}
private void writeCollection(JsonGenerator generator, String name, Collection value) throws IOException {
if (value != null && !value.isEmpty()) {
generator.writeArrayFieldStart(name);
for (String element: value) {
generator.writeString(element);
}
generator.writeEndArray();
}
}
private void safelyWriteObject(JsonGenerator generator, Object value) throws IOException {
if (value != null && value.getClass().isArray()) {
value = Arrays.asList((Object[]) value);
}
if (value instanceof Iterable) {
generator.writeStartArray();
for (Object subValue : (Iterable) value) {
safelyWriteObject(generator, subValue);
}
generator.writeEndArray();
} else if (value instanceof Map) {
generator.writeStartObject();
for (Map.Entry entry : ((Map) value).entrySet()) {
if (entry.getKey() == null) {
generator.writeFieldName("null");
} else {
generator.writeFieldName(entry.getKey().toString());
}
safelyWriteObject(generator, entry.getValue());
}
generator.writeEndObject();
} else if (value == null) {
generator.writeNull();
} else {
try {
/** @see com.fasterxml.jackson.core.JsonGenerator#_writeSimpleObject(Object) */
generator.writeObject(value);
} catch (IllegalStateException e) {
logger.debug("Couldn't marshal '{}' of type '{}', had to be converted into a String",
value, value.getClass());
generator.writeString(value.toString());
}
}
}
private void writeSdk(JsonGenerator generator, Sdk sdk) throws IOException {
generator.writeObjectFieldStart(SDK);
generator.writeStringField("name", sdk.getName());
generator.writeStringField("version", sdk.getVersion());
if (sdk.getIntegrations() != null && !sdk.getIntegrations().isEmpty()) {
generator.writeArrayFieldStart("integrations");
for (String integration : sdk.getIntegrations()) {
generator.writeString(integration);
}
generator.writeEndArray();
}
generator.writeEndObject();
}
private void writeTags(JsonGenerator generator, Map tags) throws IOException {
generator.writeObjectFieldStart(TAGS);
for (Map.Entry tag : tags.entrySet()) {
generator.writeStringField(tag.getKey(), tag.getValue());
}
generator.writeEndObject();
}
@SuppressWarnings("checkstyle:magicnumber")
private void writeBreadcumbs(JsonGenerator generator, List breadcrumbs) throws IOException {
if (breadcrumbs.isEmpty()) {
return;
}
generator.writeObjectFieldStart(BREADCRUMBS);
generator.writeArrayFieldStart("values");
for (Breadcrumb breadcrumb : breadcrumbs) {
generator.writeStartObject();
// getTime() returns ts in millis, but breadcrumbs expect seconds
generator.writeNumberField("timestamp", breadcrumb.getTimestamp().getTime() / 1000);
if (breadcrumb.getType() != null) {
generator.writeStringField("type", breadcrumb.getType().getValue());
}
if (breadcrumb.getLevel() != null) {
generator.writeStringField("level", breadcrumb.getLevel().getValue());
}
if (breadcrumb.getMessage() != null) {
generator.writeStringField("message", breadcrumb.getMessage());
}
if (breadcrumb.getCategory() != null) {
generator.writeStringField("category", breadcrumb.getCategory());
}
if (breadcrumb.getData() != null && !breadcrumb.getData().isEmpty()) {
generator.writeObjectFieldStart("data");
for (Map.Entry entry : breadcrumb.getData().entrySet()) {
generator.writeStringField(entry.getKey(), entry.getValue());
}
generator.writeEndObject();
}
generator.writeEndObject();
}
generator.writeEndArray();
generator.writeEndObject();
}
private void writeContexts(JsonGenerator generator, Map> contexts) throws IOException {
if (contexts.isEmpty()) {
return;
}
generator.writeObjectFieldStart(CONTEXTS);
for (Map.Entry> contextEntry : contexts.entrySet()) {
generator.writeObjectFieldStart(contextEntry.getKey());
for (Map.Entry innerContextEntry : contextEntry.getValue().entrySet()) {
generator.writeObjectField(innerContextEntry.getKey(), innerContextEntry.getValue());
}
generator.writeEndObject();
}
generator.writeEndObject();
}
/**
* Formats the {@code UUID} to send only the 32 necessary characters.
*
* @param id uuid to format.
* @return a {@code UUID} stripped from the "-" characters.
*/
private String formatId(UUID id) {
return id.toString().replaceAll("-", "");
}
/**
* Formats a log level into one of the accepted string representation of a log level.
*
* @param level log level to format.
* @return log level as a String.
*/
private String formatLevel(Event.Level level) {
if (level == null) {
return null;
}
switch (level) {
case DEBUG:
return "debug";
case FATAL:
return "fatal";
case WARNING:
return "warning";
case INFO:
return "info";
case ERROR:
return "error";
default:
logger.error("The level '{}' isn't supported, this should NEVER happen, contact Sentry developers",
level.name());
return null;
}
}
/**
* Add an interface binding to send a type of {@link SentryInterface} through a JSON stream.
*
* @param sentryInterfaceClass Actual type of SentryInterface supported by the {@link InterfaceBinding}
* @param binding InterfaceBinding converting SentryInterfaces of type {@code sentryInterfaceClass}.
* @param Type of SentryInterface received by the InterfaceBinding.
* @param Type of the interface stored in the event to send to the InterfaceBinding.
*/
public void addInterfaceBinding(Class sentryInterfaceClass,
InterfaceBinding binding) {
this.interfaceBindings.put(sentryInterfaceClass, binding);
}
/**
* Enables the JSON compression with gzip.
*
* @param compression state of the compression.
*/
public void setCompression(boolean compression) {
this.compression = compression;
}
public boolean isCompressed() {
return compression;
}
}