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-rw-r--r--src/main/java/org/traccar/config/Keys.java16
-rw-r--r--src/main/java/org/traccar/database/DataManager.java36
-rw-r--r--src/main/java/org/traccar/handler/FilterHandler.java79
3 files changed, 107 insertions, 24 deletions
diff --git a/src/main/java/org/traccar/config/Keys.java b/src/main/java/org/traccar/config/Keys.java
index 6d2296fb1..f7d61a993 100644
--- a/src/main/java/org/traccar/config/Keys.java
+++ b/src/main/java/org/traccar/config/Keys.java
@@ -887,8 +887,19 @@ public final class Keys {
Collections.singletonList(KeyType.GLOBAL));
/**
- * Time limit for the filtering in seconds. If the time difference between last position and a new one is more than
- * this limit, the new position will not be filtered out.
+ * If FALSE, then filter compares duplicates, distance or period only with the last received location.
+ * Server expects all locations to come sequentially.
+ *
+ * If TRUE, then filter compares duplicates, distance or period with Position's fixTime strictly before and after.
+ * Server expects locations to come at random order, since tracking device might go offline.
+ */
+ public static final ConfigKey<Boolean> FILTER_RELATIVE = new ConfigKey<>(
+ "filter.relative",
+ Collections.singletonList(KeyType.GLOBAL));
+
+ /**
+ * Time limit for the filtering in seconds. If the time difference between the last position was received by server
+ * and a new position is received by server is more than this limit, the new position will not be filtered out.
*/
public static final ConfigKey<Long> FILTER_SKIP_LIMIT = new ConfigKey<>(
"filter.skipLimit",
@@ -896,6 +907,7 @@ public final class Keys {
/**
* Enable attributes skipping. Attribute skipping can be enabled in the config or device attributes.
+ * If position contains any attribute mentioned in "filter.skipAttributes" config key, position is not filtered out.
*/
public static final ConfigKey<Boolean> FILTER_SKIP_ATTRIBUTES_ENABLE = new ConfigKey<>(
"filter.skipAttributes.enable",
diff --git a/src/main/java/org/traccar/database/DataManager.java b/src/main/java/org/traccar/database/DataManager.java
index 15137ad91..3f702f78a 100644
--- a/src/main/java/org/traccar/database/DataManager.java
+++ b/src/main/java/org/traccar/database/DataManager.java
@@ -328,6 +328,42 @@ public class DataManager {
.executeQuery(Position.class);
}
+ public Position getPositionByTime(long deviceId, Date date) throws SQLException {
+ Collection<Position> positions = QueryBuilder.create(dataSource, getQuery("database.selectPositionByTime"))
+ .setLong("deviceId", deviceId)
+ .setDate("time", date)
+ .executeQuery(Position.class);
+ if (positions.isEmpty()) {
+ return null;
+ } else {
+ return positions.iterator().next();
+ }
+ }
+
+ public Position getPrevPosition(long deviceId, Date date) throws SQLException {
+ Collection<Position> positions = QueryBuilder.create(dataSource, getQuery("database.selectPrevPosition"))
+ .setLong("deviceId", deviceId)
+ .setDate("time", date)
+ .executeQuery(Position.class);
+ if (positions.isEmpty()) {
+ return null;
+ } else {
+ return positions.iterator().next();
+ }
+ }
+
+ public Position getNextPosition(long deviceId, Date date) throws SQLException {
+ Collection<Position> positions = QueryBuilder.create(dataSource, getQuery("database.selectNextPosition"))
+ .setLong("deviceId", deviceId)
+ .setDate("time", date)
+ .executeQuery(Position.class);
+ if (positions.isEmpty()) {
+ return null;
+ } else {
+ return positions.iterator().next();
+ }
+ }
+
public void updateLatestPosition(Position position) throws SQLException {
QueryBuilder.create(dataSource, getQuery("database.updateLatestPosition"))
.setDate("now", new Date())
diff --git a/src/main/java/org/traccar/handler/FilterHandler.java b/src/main/java/org/traccar/handler/FilterHandler.java
index 7cd9153c1..817d6c8ba 100644
--- a/src/main/java/org/traccar/handler/FilterHandler.java
+++ b/src/main/java/org/traccar/handler/FilterHandler.java
@@ -25,6 +25,9 @@ import org.traccar.config.Keys;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
+import java.sql.SQLException;
+import java.util.Date;
+
@ChannelHandler.Sharable
public class FilterHandler extends BaseDataHandler {
@@ -40,6 +43,7 @@ public class FilterHandler extends BaseDataHandler {
private int filterDistance;
private int filterMaxSpeed;
private long filterMinPeriod;
+ private boolean filterRelative;
private long skipLimit;
private boolean skipAttributes;
@@ -54,14 +58,15 @@ public class FilterHandler extends BaseDataHandler {
filterDistance = config.getInteger(Keys.FILTER_DISTANCE);
filterMaxSpeed = config.getInteger(Keys.FILTER_MAX_SPEED);
filterMinPeriod = config.getInteger(Keys.FILTER_MIN_PERIOD) * 1000;
+ filterRelative = config.getBoolean(Keys.FILTER_RELATIVE);
skipLimit = config.getLong(Keys.FILTER_SKIP_LIMIT) * 1000;
skipAttributes = config.getBoolean(Keys.FILTER_SKIP_ATTRIBUTES_ENABLE);
}
private boolean filterInvalid(Position position) {
return filterInvalid && (!position.getValid()
- || position.getLatitude() > 90 || position.getLongitude() > 180
- || position.getLatitude() < -90 || position.getLongitude() < -180);
+ || position.getLatitude() > 90 || position.getLongitude() > 180
+ || position.getLatitude() < -90 || position.getLongitude() < -180);
}
private boolean filterZero(Position position) {
@@ -144,20 +149,13 @@ public class FilterHandler extends BaseDataHandler {
StringBuilder filterType = new StringBuilder();
- Position last = null;
- if (Context.getIdentityManager() != null) {
- last = Context.getIdentityManager().getLastPosition(position.getDeviceId());
- }
-
+ // general filtering
if (filterInvalid(position)) {
filterType.append("Invalid ");
}
if (filterZero(position)) {
filterType.append("Zero ");
}
- if (filterDuplicate(position, last) && !skipLimit(position, last) && !skipAttributes(position)) {
- filterType.append("Duplicate ");
- }
if (filterFuture(position)) {
filterType.append("Future ");
}
@@ -167,19 +165,56 @@ public class FilterHandler extends BaseDataHandler {
if (filterApproximate(position)) {
filterType.append("Approximate ");
}
- if (filterStatic(position) && !skipLimit(position, last) && !skipAttributes(position)) {
- filterType.append("Static ");
- }
- if (filterDistance(position, last) && !skipLimit(position, last) && !skipAttributes(position)) {
- filterType.append("Distance ");
- }
- if (filterMaxSpeed(position, last)) {
- filterType.append("MaxSpeed ");
- }
- if (filterMinPeriod(position, last)) {
- filterType.append("MinPeriod ");
- }
+ if (filterRelative) {
+ try {
+ if (filterStatic(position) && !skipAttributes(position)) {
+ filterType.append("Static ");
+ }
+ Date newfixTime = position.getFixTime();
+ Position duplicate = Context.getDataManager().getPositionByTime(position.getDeviceId(), newfixTime);
+ if (filterDuplicate(position, duplicate) && !skipLimit(position, duplicate)
+ && !skipAttributes(position)) {
+ filterType.append("Duplicate ");
+ }
+
+ Position previous = Context.getDataManager().getPrevPosition(position.getDeviceId(), newfixTime);
+ Position next = Context.getDataManager().getNextPosition(position.getDeviceId(), newfixTime);
+ if ((filterDistance(position, previous) || filterDistance(next, position))
+ && !skipAttributes(position)) {
+ filterType.append("Distance ");
+ }
+ if (filterMaxSpeed(position, previous) || filterMaxSpeed(next, position)) {
+ filterType.append("MaxSpeed ");
+ }
+ if (filterMinPeriod(position, previous) || filterMinPeriod(next, position)) {
+ filterType.append("MinPeriod ");
+ }
+ } catch (SQLException e) {
+ LOGGER.warn("Error filtering position", e);
+ }
+ } else {
+ Position last = null;
+ if (Context.getIdentityManager() != null) {
+ last = Context.getIdentityManager().getLastPosition(position.getDeviceId());
+ }
+
+ if (filterDuplicate(position, last) && !skipLimit(position, last) && !skipAttributes(position)) {
+ filterType.append("Duplicate ");
+ }
+ if (filterStatic(position) && !skipLimit(position, last) && !skipAttributes(position)) {
+ filterType.append("Static ");
+ }
+ if (filterDistance(position, last) && !skipLimit(position, last) && !skipAttributes(position)) {
+ filterType.append("Distance ");
+ }
+ if (filterMaxSpeed(position, last)) {
+ filterType.append("MaxSpeed ");
+ }
+ if (filterMinPeriod(position, last)) {
+ filterType.append("MinPeriod ");
+ }
+ }
if (filterType.length() > 0) {
StringBuilder message = new StringBuilder();
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 16:09:19 +0000