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Examples for the first version of the article

This commit is contained in:
mdhtr 2020-06-22 16:26:42 +02:00
parent e381aac6e8
commit 57dcc48b92
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60
json-2/pom.xml
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@ -49,6 +49,66 @@
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>com.io-informatics.oss</groupId>
<artifactId>jackson-jsonld</artifactId>
<version>0.1.1</version>
<exclusions>
<exclusion>
<artifactId>jackson-databind</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
<exclusion>
<artifactId>jackson-annotations</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
<exclusion>
<artifactId>jackson-core</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
<exclusion>
<artifactId>jsonld-java</artifactId>
<groupId>com.github.jsonld-java</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>de.escalon.hypermedia</groupId>
<artifactId>hydra-jsonld</artifactId>
<version>0.4.2</version>
<exclusions>
<exclusion>
<artifactId>jackson-databind</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.github.jsonld-java</groupId>
<artifactId>jsonld-java</artifactId>
<version>0.13.0</version>
<exclusions>
<exclusion>
<artifactId>jackson-core</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
<exclusion>
<artifactId>jackson-databind</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<properties>
<jsoniter.version>0.9.23</jsoniter.version>

40
json-2/src/main/java/com/baeldung/jsonld/deserialization/jsonldjava/jackson/JacksonDeserializationExample.java Normal file
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@ -0,0 +1,40 @@
package com.baeldung.jsonld.deserialization.jsonldjava.jackson;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.jsonldjava.core.JsonLdOptions;
import com.github.jsonldjava.core.JsonLdProcessor;
import com.github.jsonldjava.utils.JsonUtils;
public class JacksonDeserializationExample {
public static void main(String[] args) throws IOException {
String exampleJsonld ="{" +
" \"@context\": {" +
" \"@vocab\": \"http://schema.org/\"," +
" \"knows\": {" +
" \"@type\": \"@id\"" +
" }" +
" }," +
" \"@type\": \"Person\"," +
" \"@id\": \"http://example.com/person/1234\"," +
" \"name\": \"Example Name\"," +
" \"knows\": \"http://example.com/person/2345\"" +
"}";
Object jsonObject = JsonUtils.fromString(exampleJsonld);
Object compact = JsonLdProcessor.compact(jsonObject, new HashMap(), new JsonLdOptions());
String compactContent = JsonUtils.toString(compact);
System.out.println(JsonUtils.toPrettyString(compact));
ObjectMapper objectMapper = new ObjectMapper();
JacksonExamplePerson person = objectMapper.readValue(compactContent, JacksonExamplePerson.class);
System.out.println(person.id);
System.out.println(person.name);
System.out.println(person.knows.id);
}
}

19
json-2/src/main/java/com/baeldung/jsonld/deserialization/jsonldjava/jackson/JacksonExamplePerson.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.jsonld.deserialization.jsonldjava.jackson;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;
@JsonIgnoreProperties(ignoreUnknown = true)
public class JacksonExamplePerson {
@JsonProperty("@id")
public String id;
@JsonProperty("http://schema.org/name")
public String name;
@JsonProperty("http://schema.org/knows")
public Link knows;
public class Link {
@JsonProperty("@id")
public String id;
}
}

15
json-2/src/main/java/com/baeldung/jsonld/serialization/hydrajsonld/HydraJsonldExamplePerson.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.jsonld.serialization.hydrajsonld;
import com.fasterxml.jackson.annotation.JsonProperty;
import de.escalon.hypermedia.hydra.mapping.Expose;
import de.escalon.hypermedia.hydra.mapping.Vocab;
@Vocab("http://example.com/vocab/")
@Expose("person")
public class HydraJsonldExamplePerson {
@JsonProperty("@id")
public String id;
@Expose("fullName")
public String name;
}

52
json-2/src/main/java/com/baeldung/jsonld/serialization/hydrajsonld/HydraJsonldSerializationExample.java Normal file
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@ -0,0 +1,52 @@
package com.baeldung.jsonld.serialization.hydrajsonld;
import java.io.IOException;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.BeanDescription;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationConfig;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
import com.fasterxml.jackson.databind.ser.std.BeanSerializerBase;
import de.escalon.hypermedia.hydra.serialize.JacksonHydraSerializer;
public class HydraJsonldSerializationExample {
public static void main(String[] args) throws IOException {
ObjectMapper mapper = new ObjectMapper();
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
mapper.registerModule(getJacksonHydraSerializerModule());
HydraJsonldExamplePerson person = new HydraJsonldExamplePerson();
person.id = "http://example.com/person/1234";
person.name = "Example Name";
System.out.println(mapper.writerWithDefaultPrettyPrinter()
.writeValueAsString(person));
}
public static SimpleModule getJacksonHydraSerializerModule() {
return new SimpleModule() {
@Override
public void setupModule(SetupContext context) {
super.setupModule(context);
context.addBeanSerializerModifier(new BeanSerializerModifier() {
@Override
public JsonSerializer<?> modifySerializer(SerializationConfig config, BeanDescription beanDesc, JsonSerializer<?> serializer) {
if (serializer instanceof BeanSerializerBase) {
return new JacksonHydraSerializer((BeanSerializerBase) serializer);
} else {
return serializer;
}
}
});
}
};
}
}

25
json-2/src/main/java/com/baeldung/jsonld/serialization/jacksonjsonld/JacksonJsonLdSerializationExample.java Normal file
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@ -0,0 +1,25 @@
package com.baeldung.jsonld.serialization.jacksonjsonld;
import java.io.IOException;
import com.fasterxml.jackson.databind.ObjectMapper;
import ioinformarics.oss.jackson.module.jsonld.HydraCollection;
import ioinformarics.oss.jackson.module.jsonld.JsonldGraph;
import ioinformarics.oss.jackson.module.jsonld.JsonldModule;
import ioinformarics.oss.jackson.module.jsonld.JsonldResource;
public class JacksonJsonLdSerializationExample {
public static void main(String[] args) throws IOException {
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.registerModule(new JsonldModule());
JacksonJsonldExamplePerson person = new JacksonJsonldExamplePerson();
JsonldResource jsonldResource = JsonldResource.Builder.create()
.build(person);
System.out.println(objectMapper.writerWithDefaultPrettyPrinter()
.writeValueAsString(jsonldResource));
}
}

17
json-2/src/main/java/com/baeldung/jsonld/serialization/jacksonjsonld/JacksonJsonldExamplePerson.java Normal file
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@ -0,0 +1,17 @@
package com.baeldung.jsonld.serialization.jacksonjsonld;
import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldId;
import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldLink;
import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldNamespace;
import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldProperty;
import ioinformarics.oss.jackson.module.jsonld.annotation.JsonldType;
@JsonldNamespace(name = "s", uri = "http://schema.org/")
@JsonldLink(rel = "s:knows", name = "knows", href = "http://example.com/person/2345")
@JsonldType("s:Person")
class JacksonJsonldExamplePerson {
@JsonldId
public String id = "http://example.com/person/1234";
@JsonldProperty("s:name")
public String name = "Example Name";
}