io.logspace.agent.api.json.EventJsonDeserializer Maven / Gradle / Ivy
/**
* Logspace
* Copyright (c) 2015 Indoqa Software Design und Beratung GmbH. All rights reserved.
* This program and the accompanying materials are made available under the terms of
* the Eclipse Public License Version 1.0, which accompanies this distribution and
* is available at http://www.eclipse.org/legal/epl-v10.html.
*/
package io.logspace.agent.api.json;
import static io.logspace.agent.shaded.jackson.core.JsonToken.*;
import static io.logspace.agent.api.event.Event.*;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.List;
import io.logspace.agent.shaded.jackson.core.JsonParser;
import io.logspace.agent.api.event.*;
public final class EventJsonDeserializer extends AbstractJsonDeserializer {
private EventJsonDeserializer(byte[] data) throws IOException {
super();
this.setData(data);
}
private EventJsonDeserializer(InputStream inputStream) throws IOException {
super();
this.setInputStream(inputStream);
}
private EventJsonDeserializer(JsonParser parser) {
super();
this.setJsonParser(parser);
}
public static Event eventFromJson(byte[] data) throws IOException {
return new EventJsonDeserializer(data).deserializeSingleEvent();
}
public static List fromJson(byte[] data) throws IOException {
return new EventJsonDeserializer(data).deserialize(true);
}
public static List fromJson(InputStream inputStream) throws IOException {
return new EventJsonDeserializer(inputStream).deserialize(true);
}
public static List fromJson(JsonParser parser) throws IOException {
return new EventJsonDeserializer(parser).deserialize(false);
}
private List deserialize(boolean validateEnd) throws IOException {
List result = new ArrayList();
this.prepareToken();
this.validateTokenType(START_ARRAY);
this.consumeToken();
while (true) {
this.prepareToken();
if (this.hasToken(END_ARRAY)) {
this.consumeToken();
break;
}
result.add(this.deserializeSingleEvent());
}
this.prepareToken();
if (validateEnd) {
this.validateEnd();
}
return result;
}
private Event deserializeSingleEvent() throws IOException {
this.prepareToken();
this.validateTokenType(START_OBJECT);
this.consumeToken();
Event result = this.readEvent();
this.prepareToken();
this.validateTokenType(END_OBJECT);
this.consumeToken();
return result;
}
private Event readEvent() throws IOException {
DeserializedEvent event = new DeserializedEvent();
event.setId(this.readMandatoryField(FIELD_ID));
event.setType(this.readOptionalField(FIELD_TYPE));
event.setSystem(this.readMandatoryField(FIELD_SYSTEM));
event.setAgentId(this.readMandatoryField(FIELD_AGENT_ID));
event.setTimestamp(this.readMandatoryDateField(FIELD_TIMESTAMP));
event.setParentEventId(this.readOptionalField(FIELD_PARENT_EVENT_ID));
event.setGlobalEventId(this.readOptionalField(FIELD_GLOBAL_EVENT_ID));
event.setMarker(this.readOptionalField(FIELD_MARKER));
event.setProperties(this.readProperties());
return event;
}
private EventProperties readProperties() throws IOException {
EventProperties result = new EventProperties();
while (true) {
this.prepareToken();
if (!this.hasToken(FIELD_NAME)) {
return result;
}
String fieldName = this.getCurrentName();
EventPropertyJsonHandler eventPropertyJsonHandler = EventPropertyJsonHandlers.getHandler(fieldName);
this.validateFieldName(FIELD_BOOLEAN_PROPERTIES, FIELD_DATE_PROPERTIES, FIELD_DOUBLE_PROPERTIES, FIELD_FLOAT_PROPERTIES,
FIELD_INTEGER_PROPERTIES, FIELD_LONG_PROPERTIES, FIELD_STRING_PROPERTIES);
this.prepareToken();
this.validateTokenType(START_OBJECT);
this.consumeToken();
while (true) {
this.prepareToken();
this.validateTokenType(FIELD_NAME, END_OBJECT);
if (this.hasToken(END_OBJECT)) {
this.consumeToken();
break;
}
this.validateTokenType(FIELD_NAME);
String propertyName = this.getCurrentName();
this.getJsonParser().nextToken();
this.validateTokenType(START_ARRAY);
this.consumeToken();
eventPropertyJsonHandler.readEventProperties(result, propertyName, this.getJsonParser());
this.prepareToken();
this.validateTokenType(END_ARRAY);
this.consumeToken();
}
}
}
public static class DeserializedEvent implements Event {
private String id;
private String system;
private String agentId;
private Date timestamp;
private String parentEventId;
private String globalEventId;
private String type;
private String marker;
private EventProperties properties = new EventProperties();
@Override
public String getAgentId() {
return this.agentId;
}
@Override
public Collection getBooleanProperties() {
return this.properties.getBooleanProperties();
}
@Override
public Collection getDateProperties() {
return this.properties.getDateProperties();
}
@Override
public Collection getDoubleProperties() {
return this.properties.getDoubleProperties();
}
@Override
public Collection getFloatProperties() {
return this.properties.getFloatProperties();
}
@Override
public String getGlobalEventId() {
return this.globalEventId;
}
@Override
public String getId() {
return this.id;
}
@Override
public Collection getIntegerProperties() {
return this.properties.getIntegerProperties();
}
@Override
public Collection getLongProperties() {
return this.properties.getLongProperties();
}
@Override
public String getMarker() {
return this.marker;
}
@Override
public String getParentEventId() {
return this.parentEventId;
}
@Override
public Collection getStringProperties() {
return this.properties.getStringProperties();
}
@Override
public String getSystem() {
return this.system;
}
@Override
public Date getTimestamp() {
return this.timestamp;
}
@Override
public String getType() {
return this.type;
}
@Override
public boolean hasProperties() {
return this.properties != null && !this.properties.isEmpty();
}
public void setAgentId(String agentId) {
this.agentId = agentId;
}
public void setGlobalEventId(String globalEventId) {
this.globalEventId = globalEventId;
}
public void setId(String id) {
this.id = id;
}
public void setMarker(String marker) {
this.marker = marker;
}
public void setParentEventId(String parentEventId) {
this.parentEventId = parentEventId;
}
public void setProperties(EventProperties properties) {
this.properties = properties;
}
public void setSystem(String system) {
this.system = system;
}
public void setTimestamp(Date timestamp) {
this.timestamp = timestamp;
}
public void setType(String type) {
this.type = type;
}
}
}