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Jun 1, 2023
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,13 @@ public interface Context {
*/
Map<String, Component> getOutputs();

/**
* getStates returns the states of function.
*
* @return states
*/
Map<String, Component> getStates();

/**
* getDaprClient return a dapr client, so that use user
* can call the dapr API directly.
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17 changes: 0 additions & 17 deletions functions-framework-invoker/pom.xml
Original file line number Diff line number Diff line change
Expand Up @@ -72,23 +72,6 @@
<artifactId>cloudevents-core</artifactId>
<version>${cloudevents.sdk.version}</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.10.1</version>
</dependency>
<dependency>
<groupId>com.ryanharter.auto.value</groupId>
<artifactId>auto-value-gson</artifactId>
<version>1.3.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.ryanharter.auto.value</groupId>
<artifactId>auto-value-gson-annotations</artifactId>
<version>0.8.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.auto.value</groupId>
<artifactId>auto-value</artifactId>
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Original file line number Diff line number Diff line change
Expand Up @@ -167,6 +167,11 @@ public Map<String, Component> getOutputs() {
return runtimeContext.getOutputs();
}

@Override
public Map<String, Component> getStates() {
return runtimeContext.getStates();
}

@Override
public DaprClient getDaprClient() {
return daprClient;
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Original file line number Diff line number Diff line change
Expand Up @@ -16,12 +16,13 @@

package dev.openfunction.invoker.runtime;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import io.cloudevents.CloudEvent;
import io.cloudevents.CloudEventData;
import io.cloudevents.SpecVersion;
import io.cloudevents.core.data.BytesCloudEventData;
import io.cloudevents.core.format.EventDeserializationException;
import io.cloudevents.core.format.EventFormat;
Expand All @@ -32,94 +33,146 @@
import org.jetbrains.annotations.NotNull;

import java.net.URI;
import java.nio.charset.StandardCharsets;
import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Objects;

public class JsonEventFormat implements EventFormat {

public static final String CONTENT_TYPE = "application/cloudevents+json";

private static final Gson GSON = new GsonBuilder().serializeNulls().create();
public final static String ID = "id";
public final static String SOURCE = "source";
public final static String SPECVERSION = "specversion";
public final static String TYPE = "type";
public final static String TIME = "time";
public final static String SCHEMAURL = "schemaurl";
public final static String DATACONTENTTYPE = "datacontenttype";
public final static String DATASCHEMA = "dataschema";
public final static String SUBJECT = "subject";
public final static String DATA = "data";
public final static String EXTENSIONS = "extensions";
public final static String TRACEPARENT = "traceparent";
public final static String TRACEID = "traceid";

@Override
public byte[] serialize(@NotNull CloudEvent event) throws EventSerializationException {
JsonObject root = GSON.toJsonTree(event).getAsJsonObject();
ObjectMapper objectMapper = new ObjectMapper();
ObjectNode root = objectMapper.createObjectNode();
root.set(SPECVERSION, objectMapper.valueToTree(event.getSpecVersion().toString()));
root.set(ID, objectMapper.valueToTree(event.getId()));
root.set(TYPE, objectMapper.valueToTree(event.getType()));
root.set(SOURCE, objectMapper.valueToTree(event.getSource()));
root.set(SCHEMAURL, objectMapper.valueToTree(event.getDataSchema()));
root.set(DATACONTENTTYPE, objectMapper.valueToTree(event.getDataContentType()));
root.set(SUBJECT, objectMapper.valueToTree(event.getSubject()));
root.set(DATASCHEMA, objectMapper.valueToTree(event.getDataSchema()));

if (event.getTime() != null) {
root.set(TIME, objectMapper.valueToTree(event.getTime().format(DateTimeFormatter.ISO_DATE_TIME)));
}

if (event.getData() != null) {
root.set(DATA, objectMapper.valueToTree(new String(event.getData().toBytes())));
}

ObjectNode extensions = objectMapper.createObjectNode();
for (String key : event.getExtensionNames()) {
root.add(key, GSON.toJsonTree(event.getExtension(key)));
root.set(key, objectMapper.valueToTree(event.getExtension(key)));
extensions.set(key, objectMapper.valueToTree(event.getExtension(key)));
}
root.set(EXTENSIONS, extensions);

if (root.get("traceparent") != null) {
String traceparent = root.get("traceparent").getAsString();
if (root.get(TRACEPARENT) != null) {
String traceparent = root.get(TRACEPARENT).asText();
if (!Objects.equals(traceparent, "")) {
root.add("traceid", GSON.toJsonTree(traceparent));
root.set(TRACEID, objectMapper.valueToTree(traceparent));
}
}

return root.toString().getBytes();
try {
return objectMapper.writeValueAsBytes(root);
} catch (JsonProcessingException e) {
throw new EventSerializationException(e);
}
}

@Override
public CloudEvent deserialize(@NotNull byte[] bytes, @NotNull CloudEventDataMapper<? extends CloudEventData> mapper) throws EventDeserializationException {

try {
JsonObject jsonObject = GSON.fromJson(new String(bytes, StandardCharsets.UTF_8), JsonObject.class);

String specversion = null;
String id = null;
URI source = null;
String type = null;
String datacontenttype = null;
URI schemaurl = null;
URI dataschema = null;
String subject = null;
OffsetDateTime time = null;
BytesCloudEventData data = null;
Map<String, Object> extensions = new HashMap<>();
for (String key : jsonObject.keySet()) {
JsonElement element = jsonObject.get(key);
if (element.isJsonNull()) {

JsonNode root = new ObjectMapper().readTree(bytes);
Iterator<String> fields = root.fieldNames();
while (fields.hasNext()) {
String field = fields.next();
JsonNode node = root.get(field);
if (node.isNull()) {
continue;
}

switch (key) {
case CloudEventV03.ID:
id = element.getAsString();
switch (field) {
case SPECVERSION:
specversion = node.asText();
break;
case CloudEventV03.SOURCE:
source = new URI(element.getAsString());
case ID:
id = node.asText();
break;
case CloudEventV03.TYPE:
type = element.getAsString();
case SOURCE:
source = new URI(node.asText());
break;
case CloudEventV03.DATACONTENTTYPE:
datacontenttype = element.getAsString();
case TYPE:
type = node.asText();
break;
case CloudEventV03.SCHEMAURL:
schemaurl = new URI(element.getAsString());
case DATACONTENTTYPE:
datacontenttype = node.asText();
break;
case CloudEventV1.SUBJECT:
subject = element.getAsString();
case SCHEMAURL:
schemaurl = new URI(node.asText());
break;
case CloudEventV1.TIME:
time = OffsetDateTime.parse(element.getAsString());
case SUBJECT:
subject = node.asText();
break;
case "data":
data = BytesCloudEventData.wrap(element.getAsString().getBytes());
case TIME:
time = OffsetDateTime.parse(node.asText());
break;
case "extensions":
JsonObject extensionsObject= element.getAsJsonObject();
for (String extensionKey : extensionsObject.keySet()) {
extensions.put(extensionKey, extensionsObject.get(extensionKey).getAsString());
case DATASCHEMA:
dataschema = new URI(node.asText());
break;
case DATA:
data = BytesCloudEventData.wrap(node.asText().getBytes());
break;
case EXTENSIONS:
Iterator<String> it = node.fieldNames();
while ( it.hasNext() ) {
String name = it.next();
extensions.put(name, node.get(name));
}
break;
default:
extensions.put(key, element.getAsString());
extensions.put(field, node);
break;
}
}

return new CloudEventV03(id, source, type, time, schemaurl, datacontenttype, subject, data, extensions);
if (Objects.equals(specversion, SpecVersion.V1.toString())) {
return new CloudEventV1(id, source, type, datacontenttype, dataschema, subject,time, data, extensions);
} else {
return new CloudEventV03(id, source, type, time, schemaurl, datacontenttype, subject, data, extensions);
}
} catch (Exception e) {
throw new EventDeserializationException(e);
}
Expand Down
5 changes: 0 additions & 5 deletions samples/pom.xml
Original file line number Diff line number Diff line change
Expand Up @@ -33,11 +33,6 @@
<artifactId>functions-framework-api</artifactId>
<version>1.1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.10.1</version>
</dependency>
</dependencies>

</project>