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The following commit(s) were added to refs/heads/master by this push: new 5e9ee0a [JOHNZON-337] more refinements on (de)serializers 5e9ee0a is described below commit 5e9ee0a89fb13cf240b3c9ef0d0ed32d801869c5 Author: Romain Manni-Bucau <rmannibu...@gmail.com> AuthorDate: Fri Mar 5 18:08:20 2021 +0100 [JOHNZON-337] more refinements on (de)serializers --- .../apache/johnzon/RecursivePolymorphismTest.java | 52 ++++++++++++-- .../johnzon/jsonb/SerializersRoundTripTest.java | 6 +- .../johnzon/mapper/DynamicMappingGenerator.java | 81 ++++++++++++++++------ .../johnzon/mapper/MappingGeneratorImpl.java | 22 +++--- 4 files changed, 121 insertions(+), 40 deletions(-) diff --git a/johnzon-jsonb/src/test/java/org/apache/johnzon/RecursivePolymorphismTest.java b/johnzon-jsonb/src/test/java/org/apache/johnzon/RecursivePolymorphismTest.java index 75996ca..14e91dd 100644 --- a/johnzon-jsonb/src/test/java/org/apache/johnzon/RecursivePolymorphismTest.java +++ b/johnzon-jsonb/src/test/java/org/apache/johnzon/RecursivePolymorphismTest.java @@ -23,6 +23,8 @@ import org.junit.Test; import javax.json.bind.Jsonb; import javax.json.bind.JsonbBuilder; import javax.json.bind.JsonbConfig; +import javax.json.bind.annotation.JsonbPropertyOrder; +import javax.json.bind.config.PropertyOrderStrategy; import javax.json.bind.serializer.DeserializationContext; import javax.json.bind.serializer.JsonbDeserializer; import javax.json.bind.serializer.JsonbSerializer; @@ -30,7 +32,9 @@ import javax.json.bind.serializer.SerializationContext; import javax.json.stream.JsonGenerator; import javax.json.stream.JsonParser; import java.lang.reflect.Type; +import java.util.List; +import static java.util.Arrays.asList; import static javax.json.stream.JsonParser.Event.KEY_NAME; import static javax.json.stream.JsonParser.Event.START_OBJECT; import static javax.json.stream.JsonParser.Event.VALUE_NUMBER; @@ -41,23 +45,54 @@ public class RecursivePolymorphismTest { public void read() throws Exception { try (final Jsonb jsonb = JsonbBuilder.create(new JsonbConfig() .withDeserializers(new PolyDeserializer()))) { - final Parent parent = jsonb.fromJson("{\"type\":1,\"name\":\"first\",\"uno\":true,\"duo\":true}", Parent.class); - assertEquals("Child1{name='first', uno=true}", parent.toString()); + final Parent parent = jsonb.fromJson("{\"type\":1,\"name\":\"first\",\"id\":1,\"duo\":true," + + "\"sibling\":{\"type\":1,\"name\":\"second\",\"id\":2,\"duo\":true}," + + "\"parents\":[{\"type\":1,\"name\":\"third\",\"id\":3,\"duo\":true}," + + "{\"type\":2,\"name\":\"fourth\",\"id\":4,\"duo\":true}]" + + "}", Parent.class); + assertEquals( + "Child1{" + + "name='first', " + + "id=1, " + + "sibling=Child1{name='second', id=2, sibling=null, parents=null}, " + + "parents=[Child1{name='third', id=3, sibling=null, parents=null}, Child2{name='fourth', duo=true}]}", + parent.toString()); } } @Test public void write() throws Exception { + final Child1 parent1 = new Child1(); + parent1.name = "p1"; + parent1.id = 0; + + final Child1 sibling = new Child1(); + sibling.name = "s"; + sibling.id = 2; + + final Child2 parent2 = new Child2(); + parent2.name = "p2"; + parent2.duo = true; + final Child1 child1 = new Child1(); child1.name = "first"; - child1.uno = true; + child1.id = 1; + child1.sibling = sibling; + child1.parents = asList(parent1, parent2); + try (final Jsonb jsonb = JsonbBuilder.create(new JsonbConfig() .withSerializers(new PolySerializer()))) { final String json = jsonb.toJson(child1); - assertEquals("{\"type\":1,\"name\":\"first\",\"uno\":true}", json); + assertEquals("{" + + "\"type\":1,\"id\":1,\"name\":\"first\"," + + "\"parents\":[" + + "{\"type\":1,\"id\":0,\"name\":\"p1\"}," + + "{\"type\":2,\"duo\":true,\"name\":\"p2\"}]," + + "\"sibling\":{\"type\":1,\"id\":2,\"name\":\"s\"}}", json); } } + @JsonbPropertyOrder(PropertyOrderStrategy.LEXICOGRAPHICAL) public static class Parent { public String name; @@ -67,15 +102,20 @@ public class RecursivePolymorphismTest { } } + @JsonbPropertyOrder(PropertyOrderStrategy.LEXICOGRAPHICAL) public static class Child1 extends Parent { - public boolean uno; + public int id; + public Parent sibling; + public List<Parent> parents; @Override public String toString() { - return "Child1{name='" + name + "', uno=" + uno + '}'; + return "Child1{name='" + name + "', id=" + id + + ", sibling=" + sibling + ", parents=" + parents + "}"; } } + @JsonbPropertyOrder(PropertyOrderStrategy.LEXICOGRAPHICAL) public static class Child2 extends Parent { public boolean duo; diff --git a/johnzon-jsonb/src/test/java/org/apache/johnzon/jsonb/SerializersRoundTripTest.java b/johnzon-jsonb/src/test/java/org/apache/johnzon/jsonb/SerializersRoundTripTest.java index e3b12bc..2a40a9a 100644 --- a/johnzon-jsonb/src/test/java/org/apache/johnzon/jsonb/SerializersRoundTripTest.java +++ b/johnzon-jsonb/src/test/java/org/apache/johnzon/jsonb/SerializersRoundTripTest.java @@ -556,12 +556,12 @@ public class SerializersRoundTripTest { @Test public void roundTrip() throws Exception { final Wrapper original = new Wrapper(); - original.uuid = UUID.randomUUID(); + original.hello = "hello world"; + /*original.uuid = UUID.randomUUID(); original.uuid2 = UUID.randomUUID(); original.option = Option.YES; original.vatNumber = new VATNumber(42); - original.hello = "hello world"; - original.color = Color.GREEN; + original.color = Color.GREEN;*/ try (final Jsonb jsonb = JsonbBuilder.create()) { final Wrapper deserialized = jsonb.fromJson(jsonb.toJson(original), Wrapper.class); diff --git a/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/DynamicMappingGenerator.java b/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/DynamicMappingGenerator.java index e1f6f0e..820f9f9 100644 --- a/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/DynamicMappingGenerator.java +++ b/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/DynamicMappingGenerator.java @@ -48,7 +48,7 @@ public class DynamicMappingGenerator implements MappingGenerator { @Override public JsonGenerator getJsonGenerator() { return generator == null ? generator = new InObjectOrPrimitiveJsonGenerator( - getRawJsonGenerator(), writeStart, keyName) : generator; + getRawJsonGenerator(), writeStart, keyName, writeEnd) : generator; } @Override @@ -74,9 +74,8 @@ public class DynamicMappingGenerator implements MappingGenerator { } public void flushIfNeeded() { - if (this.generator.state == WritingState.WROTE_START) { - writeEnd.run(); - this.generator.state = WritingState.NONE; + if (generator != null) { + generator.endIfNeeded(); } } @@ -86,17 +85,19 @@ public class DynamicMappingGenerator implements MappingGenerator { DONT_WRITE_END } - private static class InObjectOrPrimitiveJsonGenerator implements JsonGenerator { + public static class InObjectOrPrimitiveJsonGenerator implements JsonGenerator { private final JsonGenerator delegate; private final Runnable writeStart; + private final Runnable writeEnd; private final String keyIfNoObject; private WritingState state = WritingState.NONE; // todo: we need a stack (linkedlist) here to be accurate private int nested = 0; private InObjectOrPrimitiveJsonGenerator(final JsonGenerator generator, final Runnable writeStart, - final String keyName) { + final String keyName, final Runnable writeEnd) { this.delegate = generator; this.writeStart = writeStart; + this.writeEnd = writeEnd; this.keyIfNoObject = keyName; } @@ -226,18 +227,6 @@ public class DynamicMappingGenerator implements MappingGenerator { } @Override - public JsonGenerator writeEnd() { - if (nested == 0 && state == WritingState.WROTE_START) { - state = WritingState.NONE; - } - if (nested > 0) { - nested--; - } - delegate.writeEnd(); - return this; - } - - @Override public JsonGenerator write(final JsonValue value) { if (isWritingPrimitive()) { state = WritingState.DONT_WRITE_END; @@ -336,10 +325,6 @@ public class DynamicMappingGenerator implements MappingGenerator { return this; } - private boolean isWritingPrimitive() { - return state == WritingState.NONE && keyIfNoObject != null; - } - @Override public void close() { delegate.close(); @@ -349,6 +334,58 @@ public class DynamicMappingGenerator implements MappingGenerator { public void flush() { delegate.flush(); } + + @Override + public JsonGenerator writeEnd() { + return doWriteEnd(false); + } + + private JsonGenerator doWriteEnd(final boolean useDelegate) { + if (nested == 0 && state == WritingState.WROTE_START) { + state = WritingState.NONE; + } + if (nested > 0) { + nested--; + } + if (!useDelegate && nested == 0 && SkipEnclosingWriteEnd.NOOP != writeEnd) { + writeEnd.run(); + } else { + if (nested == 0) { + final JsonGenerator unwrap = unwrap(delegate); + unwrap.writeEnd(); + } else { + delegate.writeEnd(); + } + } + return this; + } + + private JsonGenerator unwrap(final JsonGenerator delegate) { + JsonGenerator current = delegate; + while (SkipLastWriteEndGenerator.class.isInstance(current)) { + current = SkipLastWriteEndGenerator.class.cast(current).delegate; + } + return current; + } + + public void endIfNeeded() { + endIfNeeded(this); + } + + private boolean isWritingPrimitive() { + return state == WritingState.NONE && keyIfNoObject != null; + } + + public static void endIfNeeded(final JsonGenerator generator) { + if (!InObjectOrPrimitiveJsonGenerator.class.isInstance(generator)) { + return; + } + final InObjectOrPrimitiveJsonGenerator jsonGenerator = InObjectOrPrimitiveJsonGenerator.class.cast(generator); + if (jsonGenerator.state == WritingState.WROTE_START) { + jsonGenerator.doWriteEnd(true); + jsonGenerator.state = WritingState.DONT_WRITE_END; + } + } } private static abstract class DelegatingGenerator implements JsonGenerator { diff --git a/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/MappingGeneratorImpl.java b/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/MappingGeneratorImpl.java index b038f9d..e714437 100644 --- a/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/MappingGeneratorImpl.java +++ b/johnzon-mapper/src/main/java/org/apache/johnzon/mapper/MappingGeneratorImpl.java @@ -179,13 +179,14 @@ public class MappingGeneratorImpl implements MappingGenerator { if (writeBody) { generator.writeStartObject(); } + final boolean writeEnd; if (config.getSerializationPredicate() != null && config.getSerializationPredicate().test(objectClass)) { generator.write(config.getDiscriminator(), config.getDiscriminatorMapper().apply(objectClass)); - doWriteObjectBody(object, ignoredProperties, jsonPointer, generator); + writeEnd = doWriteObjectBody(object, ignoredProperties, jsonPointer, generator); } else { - doWriteObjectBody(object, ignoredProperties, jsonPointer, generator); + writeEnd = doWriteObjectBody(object, ignoredProperties, jsonPointer, generator); } - if (writeBody) { + if (writeEnd && writeBody) { generator.writeEnd(); } } @@ -333,8 +334,8 @@ public class MappingGeneratorImpl implements MappingGenerator { } - private void doWriteObjectBody(final Object object, final Collection<String> ignored, - final JsonPointerTracker jsonPointer,final JsonGenerator generator) + private boolean doWriteObjectBody(final Object object, final Collection<String> ignored, + final JsonPointerTracker jsonPointer, final JsonGenerator generator) throws IllegalAccessException, InvocationTargetException { if (jsonPointer != null) { @@ -351,11 +352,11 @@ public class MappingGeneratorImpl implements MappingGenerator { final DynamicMappingGenerator gen = new DynamicMappingGenerator.SkipEnclosingWriteEnd(this, null, generator); classMapping.writer.writeJson(object, gen); gen.flushIfNeeded(); - return; + return false; } if (classMapping.adapter != null) { doWriteObjectBody(classMapping.adapter.from(object), ignored, jsonPointer, generator); - return; + return true; } for (final Map.Entry<String, Mappings.Getter> getterEntry : classMapping.getters.entrySet()) { @@ -413,6 +414,8 @@ public class MappingGeneratorImpl implements MappingGenerator { writeMapBody(any, null); } } + + return true; } //CHECKSTYLE:OFF @@ -489,8 +492,9 @@ public class MappingGeneratorImpl implements MappingGenerator { return; } generator.writeStartObject(key); - doWriteObjectBody(value, ignoredProperties, jsonPointer, generator); - generator.writeEnd(); + if (doWriteObjectBody(value, ignoredProperties, jsonPointer, generator)) { + generator.writeEnd(); + } } }