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[Fix #466] Implement switch
Signed-off-by: Francisco Javier Tirado Sarti <ftirados@redhat.com>
1 parent 11d0050 commit 7f8fe37

21 files changed

+672
-250
lines changed

‎impl/src/main/java/io/serverlessworkflow/impl/TaskContext.java

Lines changed: 18 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -16,6 +16,8 @@
1616
package io.serverlessworkflow.impl;
1717

1818
import com.fasterxml.jackson.databind.JsonNode;
19+
import io.serverlessworkflow.api.types.FlowDirective;
20+
import io.serverlessworkflow.api.types.FlowDirectiveEnum;
1921
import io.serverlessworkflow.api.types.TaskBase;
2022

2123
public class TaskContext<T extends TaskBase> {
@@ -26,11 +28,15 @@ public class TaskContext<T extends TaskBase> {
2628
private JsonNode input;
2729
private JsonNode output;
2830
private JsonNode rawOutput;
31+
private FlowDirective flowDirective;
2932

3033
public TaskContext(JsonNode rawInput, T task) {
3134
this.rawInput = rawInput;
3235
this.input = rawInput;
36+
this.rawOutput = rawInput;
37+
this.output = rawInput;
3338
this.task = task;
39+
this.flowDirective = task.getThen();
3440
}
3541

3642
public void input(JsonNode input) {
@@ -54,6 +60,10 @@ public void rawOutput(JsonNode output) {
5460
this.output = output;
5561
}
5662

63+
public JsonNode rawOutput() {
64+
return rawOutput;
65+
}
66+
5767
public void output(JsonNode output) {
5868
this.output = output;
5969
}
@@ -62,7 +72,13 @@ public JsonNode output() {
6272
return output;
6373
}
6474

65-
public JsonNode rawOutput() {
66-
return rawOutput;
75+
public void flowDirective(FlowDirective flowDirective) {
76+
this.flowDirective = flowDirective;
77+
}
78+
79+
public FlowDirective flowDirective() {
80+
return flowDirective == null
81+
? new FlowDirective().withFlowDirectiveEnum(FlowDirectiveEnum.CONTINUE)
82+
: flowDirective;
6783
}
6884
}

‎impl/src/main/java/io/serverlessworkflow/impl/WorkflowApplication.java

Lines changed: 148 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,148 @@
1+
/*
2+
* Copyright 2020-Present The Serverless Workflow Specification Authors
3+
*
4+
* Licensed under the Apache License, Version 2.0 (the "License");
5+
* you may not use this file except in compliance with the License.
6+
* You may obtain a copy of the License at
7+
*
8+
* http://www.apache.org/licenses/LICENSE-2.0
9+
*
10+
* Unless required by applicable law or agreed to in writing, software
11+
* distributed under the License is distributed on an "AS IS" BASIS,
12+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13+
* See the License for the specific language governing permissions and
14+
* limitations under the License.
15+
*/
16+
package io.serverlessworkflow.impl;
17+
18+
import io.serverlessworkflow.api.types.Document;
19+
import io.serverlessworkflow.api.types.Workflow;
20+
import io.serverlessworkflow.impl.executors.DefaultTaskExecutorFactory;
21+
import io.serverlessworkflow.impl.executors.TaskExecutorFactory;
22+
import io.serverlessworkflow.impl.expressions.ExpressionFactory;
23+
import io.serverlessworkflow.impl.expressions.JQExpressionFactory;
24+
import io.serverlessworkflow.impl.jsonschema.DefaultSchemaValidatorFactory;
25+
import io.serverlessworkflow.impl.jsonschema.SchemaValidatorFactory;
26+
import io.serverlessworkflow.resources.DefaultResourceLoaderFactory;
27+
import io.serverlessworkflow.resources.ResourceLoaderFactory;
28+
import java.util.Collection;
29+
import java.util.Collections;
30+
import java.util.HashSet;
31+
import java.util.Map;
32+
import java.util.concurrent.ConcurrentHashMap;
33+
34+
public class WorkflowApplication implements AutoCloseable {
35+
36+
private final TaskExecutorFactory taskFactory;
37+
private final ExpressionFactory exprFactory;
38+
private final ResourceLoaderFactory resourceLoaderFactory;
39+
private final SchemaValidatorFactory schemaValidatorFactory;
40+
private final Collection<WorkflowExecutionListener> listeners;
41+
private final Map<WorkflowId, WorkflowDefinition> definitions;
42+
43+
public WorkflowApplication(
44+
TaskExecutorFactory taskFactory,
45+
ExpressionFactory exprFactory,
46+
ResourceLoaderFactory resourceLoaderFactory,
47+
SchemaValidatorFactory schemaValidatorFactory,
48+
Collection<WorkflowExecutionListener> listeners) {
49+
this.taskFactory = taskFactory;
50+
this.exprFactory = exprFactory;
51+
this.resourceLoaderFactory = resourceLoaderFactory;
52+
this.schemaValidatorFactory = schemaValidatorFactory;
53+
this.listeners = listeners;
54+
this.definitions = new ConcurrentHashMap<>();
55+
}
56+
57+
public TaskExecutorFactory taskFactory() {
58+
return taskFactory;
59+
}
60+
61+
public static Builder builder() {
62+
return new Builder();
63+
}
64+
65+
public ExpressionFactory expressionFactory() {
66+
return exprFactory;
67+
}
68+
69+
public SchemaValidatorFactory validatorFactory() {
70+
return schemaValidatorFactory;
71+
}
72+
73+
public ResourceLoaderFactory resourceLoaderFactory() {
74+
return resourceLoaderFactory;
75+
}
76+
77+
public Collection<WorkflowExecutionListener> listeners() {
78+
return listeners;
79+
}
80+
81+
public static class Builder {
82+
private TaskExecutorFactory taskFactory = DefaultTaskExecutorFactory.get();
83+
private ExpressionFactory exprFactory = JQExpressionFactory.get();
84+
private Collection<WorkflowExecutionListener> listeners;
85+
private ResourceLoaderFactory resourceLoaderFactory = DefaultResourceLoaderFactory.get();
86+
private SchemaValidatorFactory schemaValidatorFactory = DefaultSchemaValidatorFactory.get();
87+
88+
private Builder() {}
89+
90+
public Builder withListener(WorkflowExecutionListener listener) {
91+
if (listeners == null) {
92+
listeners = new HashSet<>();
93+
}
94+
listeners.add(listener);
95+
return this;
96+
}
97+
98+
public Builder withTaskExecutorFactory(TaskExecutorFactory factory) {
99+
this.taskFactory = factory;
100+
return this;
101+
}
102+
103+
public Builder withExpressionFactory(ExpressionFactory factory) {
104+
this.exprFactory = factory;
105+
return this;
106+
}
107+
108+
public Builder withResourceLoaderFactory(ResourceLoaderFactory resourceLoader) {
109+
this.resourceLoaderFactory = resourceLoader;
110+
return this;
111+
}
112+
113+
public Builder withSchemaValidatorFactory(SchemaValidatorFactory factory) {
114+
this.schemaValidatorFactory = factory;
115+
return this;
116+
}
117+
118+
public WorkflowApplication build() {
119+
return new WorkflowApplication(
120+
taskFactory,
121+
exprFactory,
122+
resourceLoaderFactory,
123+
schemaValidatorFactory,
124+
listeners == null
125+
? Collections.emptySet()
126+
: Collections.unmodifiableCollection(listeners));
127+
}
128+
}
129+
130+
private static record WorkflowId(String namespace, String name, String version) {
131+
static WorkflowId of(Document document) {
132+
return new WorkflowId(document.getNamespace(), document.getName(), document.getVersion());
133+
}
134+
}
135+
136+
public WorkflowDefinition workflowDefinition(Workflow workflow) {
137+
return definitions.computeIfAbsent(
138+
WorkflowId.of(workflow.getDocument()), k -> WorkflowDefinition.of(this, workflow));
139+
}
140+
141+
@Override
142+
public void close() throws Exception {
143+
for (WorkflowDefinition definition : definitions.values()) {
144+
definition.close();
145+
}
146+
definitions.clear();
147+
}
148+
}

‎impl/src/main/java/io/serverlessworkflow/impl/WorkflowContext.java

Lines changed: 25 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -20,24 +20,31 @@
2020

2121
public class WorkflowContext {
2222
private final WorkflowPosition position;
23-
private JsonNode context;
23+
private final WorkflowDefinition definition;
2424
private final JsonNode input;
25+
private JsonNode current;
26+
private JsonNode context;
2527

26-
private WorkflowContext(WorkflowPosition position, JsonNode input) {
28+
private WorkflowContext(
29+
WorkflowPosition position, WorkflowDefinition definition, JsonNode input) {
2730
this.position = position;
31+
this.definition = definition;
2832
this.input = input;
33+
this.current = input.deepCopy();
2934
this.context = JsonUtils.mapper().createObjectNode();
3035
}
3136

32-
public static Builder builder(JsonNode input) {
33-
return new Builder(input);
37+
public static Builder builder(WorkflowDefinition definition, JsonNode input) {
38+
return new Builder(definition, input);
3439
}
3540

3641
public static class Builder {
3742
private WorkflowPosition position = new DefaultWorkflowPosition();
43+
private WorkflowDefinition definition;
3844
private JsonNode input;
3945

40-
private Builder(JsonNode input) {
46+
private Builder(WorkflowDefinition definition, JsonNode input) {
47+
this.definition = definition;
4148
this.input = input;
4249
}
4350

@@ -47,7 +54,7 @@ public Builder position(WorkflowPosition position) {
4754
}
4855

4956
public WorkflowContext build() {
50-
return new WorkflowContext(position, input);
57+
return new WorkflowContext(position, definition, input);
5158
}
5259
}
5360

@@ -66,4 +73,16 @@ public void context(JsonNode context) {
6673
public JsonNode rawInput() {
6774
return input;
6875
}
76+
77+
public void current(JsonNode output) {
78+
this.current = output;
79+
}
80+
81+
public JsonNode current() {
82+
return current;
83+
}
84+
85+
public WorkflowDefinition definition() {
86+
return definition;
87+
}
6988
}

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