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MINOR: Cleanup Event serialization and fix related compiler warnings

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Fixes #7922
This commit is contained in:
Armin 2017-08-06 12:56:18 +02:00 • committed by Armin Braun
parent 1b0158c2d5
commit d45b15a366
2 changed files with 27 additions and 25 deletions
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44
logstash-core/src/main/java/org/logstash/Event.java
View file

@ -1,5 +1,6 @@
package org.logstash;
import com.fasterxml.jackson.core.JsonProcessingException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
@ -175,35 +176,25 @@ public final class Event implements Cloneable, Queueable {
}
}
private Map<String, Map<String, Object>> toSerializableMap() {
HashMap<String, Map<String, Object>> hashMap = new HashMap<>();
hashMap.put(DATA_MAP_KEY, this.data);
hashMap.put(META_MAP_KEY, this.metadata);
return hashMap;
}
private static Event fromSerializableMap(Map<String, Map<String, Object>> representation) throws IOException{
if (!representation.containsKey(DATA_MAP_KEY)) {
private static Event fromSerializableMap(final byte[] source) throws IOException {
final Map<String, Map<String, Object>> representation =
CBOR_MAPPER.readValue(source, ObjectMappers.EVENT_MAP_TYPE);
if (representation == null) {
throw new IOException("incompatible from binary object type only HashMap is supported");
}
final Map<String, Object> dataMap = representation.get(DATA_MAP_KEY);
if (dataMap == null) {
throw new IOException("The deserialized Map must contain the \"DATA\" key");
}
if (!representation.containsKey(META_MAP_KEY)) {
final Map<String, Object> metaMap = representation.get(META_MAP_KEY);
if (metaMap == null) {
throw new IOException("The deserialized Map must contain the \"META\" key");
}
Map<String, Object> dataMap = representation.get(DATA_MAP_KEY);
dataMap.put(METADATA, representation.get(META_MAP_KEY));
dataMap.put(METADATA, metaMap);
return new Event(dataMap);
}
private static Map<String, Map<String, Object>> fromBinaryToMap(byte[] source) throws IOException {
Object o = CBOR_MAPPER.readValue(source, HashMap.class);
if (o == null) {
throw new IOException("incompatible from binary object type only HashMap is supported");
} else {
return (Map<String, Map<String, Object>>) o;
}
}
public String toJson() throws IOException {
public String toJson() throws JsonProcessingException {
return JSON_MAPPER.writeValueAsString(this.data);
}
@ -388,14 +379,17 @@ public final class Event implements Cloneable, Queueable {
}
@Override
public byte[] serialize() throws IOException {
return CBOR_MAPPER.writeValueAsBytes(toSerializableMap());
public byte[] serialize() throws JsonProcessingException {
final Map<String, Map<String, Object>> map = new HashMap<>(2, 1.0F);
map.put(DATA_MAP_KEY, this.data);
map.put(META_MAP_KEY, this.metadata);
return CBOR_MAPPER.writeValueAsBytes(map);
}
public static Event deserialize(byte[] data) throws IOException {
if (data == null || data.length == 0) {
return new Event();
}
return fromSerializableMap(fromBinaryToMap(data));
return fromSerializableMap(data);
}
}

8
logstash-core/src/main/java/org/logstash/ObjectMappers.java
View file

@ -1,6 +1,7 @@
package org.logstash;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
@ -9,6 +10,7 @@ import com.fasterxml.jackson.dataformat.cbor.CBORFactory;
import com.fasterxml.jackson.dataformat.cbor.CBORGenerator;
import com.fasterxml.jackson.module.afterburner.AfterburnerModule;
import java.io.IOException;
import java.util.HashMap;
import org.jruby.RubyFloat;
import org.jruby.RubyString;
@ -26,6 +28,12 @@ public final class ObjectMappers {
new CBORFactory().configure(CBORGenerator.Feature.WRITE_MINIMAL_INTS, false)
).registerModule(new AfterburnerModule()).registerModule(RUBY_SERIALIZERS);
/**
* {@link JavaType} for the {@link HashMap} that {@link Event} is serialized as.
*/
public static final JavaType EVENT_MAP_TYPE =
CBOR_MAPPER.getTypeFactory().constructMapType(HashMap.class, String.class, Object.class);
private ObjectMappers() {
}