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Session.java
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package io.sentry;
import io.sentry.protocol.User;
import java.util.Date;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicInteger;
import org.jetbrains.annotations.ApiStatus;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
public final class Session {
/** Session state */
public enum State {
Ok,
Exited,
Crashed,
Abnormal // not currently used in this SDK.
}
/** started timestamp */
private final @NotNull Date started;
/** the timestamp */
private @Nullable Date timestamp;
/** the number of errors on the session */
private final @NotNull AtomicInteger errorCount;
/** The distinctId, did */
private final @Nullable String distinctId;
/** the SessionId, sid */
private final @Nullable UUID sessionId;
/** The session init flag */
private @Nullable Boolean init;
/** The session state */
private @NotNull State status;
/** The session sequence */
private @Nullable Long sequence;
/** The session duration (timestamp - started) */
private @Nullable Double duration;
/** the user's ip address */
private final @Nullable String ipAddress;
/** the user Agent */
private @Nullable String userAgent;
/** the environment */
private final @Nullable String environment;
/** the App's release */
private final @NotNull String release;
/** The session lock, ops should be atomic */
private final @NotNull Object sessionLock = new Object();
public Session(
final @NotNull State status,
final @NotNull Date started,
final @Nullable Date timestamp,
final int errorCount,
final @Nullable String distinctId,
final @Nullable UUID sessionId,
final @Nullable Boolean init,
final @Nullable Long sequence,
final @Nullable Double duration,
final @Nullable String ipAddress,
final @Nullable String userAgent,
final @Nullable String environment,
final @NotNull String release) {
this.status = status;
this.started = started;
this.timestamp = timestamp;
this.errorCount = new AtomicInteger(errorCount);
this.distinctId = distinctId;
this.sessionId = sessionId;
this.init = init;
this.sequence = sequence;
this.duration = duration;
this.ipAddress = ipAddress;
this.userAgent = userAgent;
this.environment = environment;
this.release = release;
}
public Session(
@Nullable String distinctId,
final @Nullable User user,
final @Nullable String environment,
final @NotNull String release) {
this(
State.Ok,
DateUtils.getCurrentDateTime(),
DateUtils.getCurrentDateTime(),
0,
distinctId,
UUID.randomUUID(),
true,
null,
null,
(user != null ? user.getIpAddress() : null),
null,
environment,
release);
}
@SuppressWarnings("JdkObsolete")
public @Nullable Date getStarted() {
if (started == null) {
return null;
}
return (Date) started.clone();
}
public @Nullable String getDistinctId() {
return distinctId;
}
public @Nullable UUID getSessionId() {
return sessionId;
}
public @Nullable String getIpAddress() {
return ipAddress;
}
public @Nullable String getUserAgent() {
return userAgent;
}
public @Nullable String getEnvironment() {
return environment;
}
public @NotNull String getRelease() {
return release;
}
public @Nullable Boolean getInit() {
return init;
}
/** Used for migrating the init flag when an session is gonna be deleted. */
@ApiStatus.Internal
public void setInitAsTrue() {
this.init = true;
}
public int errorCount() {
return errorCount.get();
}
public @NotNull State getStatus() {
return status;
}
public @Nullable Long getSequence() {
return sequence;
}
public @Nullable Double getDuration() {
return duration;
}
@SuppressWarnings("JdkObsolete")
public @Nullable Date getTimestamp() {
final Date timestampRef = timestamp;
return timestampRef != null ? (Date) timestampRef.clone() : null;
}
/** Ends a session and update its values */
public void end() {
end(DateUtils.getCurrentDateTime());
}
/**
* Ends a session and update its values
*
* @param timestamp the timestamp or null
*/
public void end(final @Nullable Date timestamp) {
synchronized (sessionLock) {
init = null;
// at this state it might be Crashed already, so we don't check for it.
if (status == State.Ok) {
status = State.Exited;
}
if (timestamp != null) {
this.timestamp = timestamp;
} else {
this.timestamp = DateUtils.getCurrentDateTime();
}
if (this.timestamp != null) {
duration = calculateDurationTime(this.timestamp);
sequence = getSequenceTimestamp(this.timestamp);
}
}
}
/**
* Calculates the duration time in seconds timestamp (last update) - started
*
* @param timestamp the timestamp
* @return duration in seconds
*/
@SuppressWarnings("JdkObsolete")
private double calculateDurationTime(final @NotNull Date timestamp) {
long diff = Math.abs(timestamp.getTime() - started.getTime());
return (double) diff / 1000; // duration in seconds
}
/**
* Updates the current session and set its values
*
* @param status the status
* @param userAgent the userAgent
* @param addErrorsCount true if should increase error count or not
* @return if the session has been updated
*/
public boolean update(
final @Nullable State status, final @Nullable String userAgent, boolean addErrorsCount) {
synchronized (sessionLock) {
boolean sessionHasBeenUpdated = false;
if (status != null) {
this.status = status;
sessionHasBeenUpdated = true;
}
if (userAgent != null) {
this.userAgent = userAgent;
sessionHasBeenUpdated = true;
}
if (addErrorsCount) {
errorCount.addAndGet(1);
sessionHasBeenUpdated = true;
}
if (sessionHasBeenUpdated) {
init = null;
timestamp = DateUtils.getCurrentDateTime();
if (timestamp != null) {
sequence = getSequenceTimestamp(timestamp);
}
}
return sessionHasBeenUpdated;
}
}
/**
* Returns a logical clock.
*
* @param timestamp The timestamp
* @return time stamp in milliseconds UTC
*/
@SuppressWarnings("JdkObsolete")
private long getSequenceTimestamp(final @NotNull Date timestamp) {
long sequence = timestamp.getTime();
// if device has wrong date and time and it is nearly at the beginning of the epoch time.
// when converting GMT to UTC may give a negative value.
if (sequence < 0) {
sequence = Math.abs(sequence);
}
return sequence;
}
/**
* Ctor copy of the Session
*
* @return a copy of the Session
*/
@SuppressWarnings("MissingOverride")
public @NotNull Session clone() {
return new Session(
status,
started,
timestamp,
errorCount.get(),
distinctId,
sessionId,
init,
sequence,
duration,
ipAddress,
userAgent,
environment,
release);
}
}