Moved code from "json" module.
This commit is contained in:
Karsten Silz
123
json-2/src/main/java/com/baeldung/jsonoptimization/Customer.java
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123
json-2/src/main/java/com/baeldung/jsonoptimization/Customer.java
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@@ -0,0 +1,123 @@
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package com.baeldung.jsonoptimization;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Objects;
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import com.fasterxml.jackson.databind.ObjectMapper;
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public class Customer {
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private long id;
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private String firstName;
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private String lastName;
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private String street;
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private String postalCode;
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private String city;
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private String state;
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private String phoneNumber;
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private String email;
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public String getFirstName() {
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return firstName;
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}
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public void setFirstName(String firstName) {
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this.firstName = firstName;
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}
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public String getLastName() {
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return lastName;
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}
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public void setLastName(String lastName) {
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this.lastName = lastName;
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}
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public String getStreet() {
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return street;
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}
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public void setStreet(String street) {
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this.street = street;
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}
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public String getPostalCode() {
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return postalCode;
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}
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public void setPostalCode(String postalCode) {
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this.postalCode = postalCode;
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}
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public String getCity() {
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return city;
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}
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public void setCity(String city) {
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this.city = city;
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}
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public String getState() {
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return state;
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}
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public void setState(String state) {
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this.state = state;
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}
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public String getPhoneNumber() {
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return phoneNumber;
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}
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public void setPhoneNumber(String phoneNumber) {
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this.phoneNumber = phoneNumber;
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}
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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@Override
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public int hashCode() {
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return Objects.hash(city, email, firstName, id, lastName, phoneNumber, postalCode, state, street);
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (!(obj instanceof Customer)) {
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return false;
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}
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Customer other = (Customer) obj;
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return Objects.equals(city, other.city) && Objects.equals(email, other.email) && Objects.equals(firstName, other.firstName) && id == other.id && Objects.equals(lastName, other.lastName) && Objects.equals(phoneNumber, other.phoneNumber)
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&& Objects.equals(postalCode, other.postalCode) && Objects.equals(state, other.state) && Objects.equals(street, other.street);
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}
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@Override
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public String toString() {
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return "Customer [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + ", street=" + street + ", postalCode=" + postalCode + ", city=" + city + ", state=" + state + ", phoneNumber=" + phoneNumber + ", email=" + email + "]";
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}
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public static Customer[] fromMockFile() throws IOException {
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ObjectMapper objectMapper = new ObjectMapper();
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InputStream jsonFile = new FileInputStream("src/test/resources/json_optimization_mock_data.json");
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Customer[] feedback = objectMapper.readValue(jsonFile, Customer[].class);
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return feedback;
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}
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}
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@@ -0,0 +1,49 @@
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package com.baeldung.jsonoptimization;
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import java.io.IOException;
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import com.fasterxml.jackson.core.JsonParser;
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import com.fasterxml.jackson.core.ObjectCodec;
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import com.fasterxml.jackson.databind.DeserializationContext;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
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public class CustomerDeserializer extends StdDeserializer<Customer> {
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private static final long serialVersionUID = 1L;
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public CustomerDeserializer() {
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this(null);
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}
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public CustomerDeserializer(Class<Customer> t) {
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super(t);
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}
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@Override
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public Customer deserialize(JsonParser parser, DeserializationContext deserializer) throws IOException {
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Customer feedback = new Customer();
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ObjectCodec codec = parser.getCodec();
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JsonNode node = codec.readTree(parser);
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feedback.setId(node.get(0)
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.asLong());
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feedback.setFirstName(node.get(1)
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.asText());
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feedback.setLastName(node.get(2)
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.asText());
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feedback.setStreet(node.get(3)
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.asText());
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feedback.setPostalCode(node.get(4)
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.asText());
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feedback.setCity(node.get(5)
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.asText());
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feedback.setState(node.get(6)
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.asText());
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JsonNode phoneNumber = node.get(7);
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feedback.setPhoneNumber(phoneNumber.isNull() ? null : phoneNumber.asText());
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JsonNode email = node.get(8);
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feedback.setEmail(email.isNull() ? null : email.asText());
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return feedback;
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}
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}
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@@ -0,0 +1,34 @@
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package com.baeldung.jsonoptimization;
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import java.io.IOException;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import com.fasterxml.jackson.databind.ser.std.StdSerializer;
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public class CustomerSerializer extends StdSerializer<Customer> {
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private static final long serialVersionUID = 1L;
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public CustomerSerializer() {
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this(null);
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}
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public CustomerSerializer(Class<Customer> t) {
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super(t);
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}
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@Override
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public void serialize(Customer customer, JsonGenerator jsonGenerator, SerializerProvider serializer) throws IOException {
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jsonGenerator.writeStartArray();
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jsonGenerator.writeNumber(customer.getId());
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jsonGenerator.writeString(customer.getFirstName());
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jsonGenerator.writeString(customer.getLastName());
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jsonGenerator.writeString(customer.getStreet());
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jsonGenerator.writeString(customer.getPostalCode());
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jsonGenerator.writeString(customer.getCity());
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jsonGenerator.writeString(customer.getState());
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jsonGenerator.writeString(customer.getPhoneNumber());
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jsonGenerator.writeString(customer.getEmail());
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jsonGenerator.writeEndArray();
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}
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}
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@@ -0,0 +1,155 @@
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package com.baeldung.jsonoptimization;
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import java.util.Objects;
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import com.fasterxml.jackson.annotation.JsonProperty;
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public class CustomerShortNames {
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@JsonProperty("i")
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private long id;
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@JsonProperty("f")
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private String firstName;
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@JsonProperty("l")
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private String lastName;
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@JsonProperty("s")
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private String street;
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@JsonProperty("p")
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private String postalCode;
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@JsonProperty("c")
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private String city;
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@JsonProperty("a")
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private String state;
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@JsonProperty("o")
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private String phoneNumber;
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@JsonProperty("e")
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private String email;
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public String getFirstName() {
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return firstName;
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}
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public void setFirstName(String firstName) {
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this.firstName = firstName;
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}
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public String getLastName() {
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return lastName;
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}
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public void setLastName(String lastName) {
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this.lastName = lastName;
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}
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public String getStreet() {
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return street;
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}
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public void setStreet(String street) {
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this.street = street;
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}
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public String getPostalCode() {
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return postalCode;
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}
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public void setPostalCode(String postalCode) {
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this.postalCode = postalCode;
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}
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public String getCity() {
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return city;
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}
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public void setCity(String city) {
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this.city = city;
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}
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public String getState() {
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return state;
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}
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public void setState(String state) {
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this.state = state;
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}
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public String getPhoneNumber() {
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return phoneNumber;
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}
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public void setPhoneNumber(String phoneNumber) {
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this.phoneNumber = phoneNumber;
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}
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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@Override
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public int hashCode() {
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return Objects.hash(city, email, firstName, id, lastName, phoneNumber, postalCode, state, street);
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (!(obj instanceof CustomerShortNames)) {
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return false;
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}
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CustomerShortNames other = (CustomerShortNames) obj;
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return Objects.equals(city, other.city) && Objects.equals(email, other.email) && Objects.equals(firstName, other.firstName) && id == other.id && Objects.equals(lastName, other.lastName) && Objects.equals(phoneNumber, other.phoneNumber)
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&& Objects.equals(postalCode, other.postalCode) && Objects.equals(state, other.state) && Objects.equals(street, other.street);
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}
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@Override
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public String toString() {
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return "CustomerWithShorterAttributes [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + ", street=" + street + ", postalCode=" + postalCode + ", city=" + city + ", state=" + state + ", phoneNumber=" + phoneNumber + ", email=" + email
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+ "]";
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}
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public static CustomerShortNames[] fromCustomers(Customer[] customers) {
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CustomerShortNames[] feedback = new CustomerShortNames[customers.length];
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for (int i = 0; i < customers.length; i++) {
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Customer aCustomer = customers[i];
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CustomerShortNames newOne = new CustomerShortNames();
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newOne.setId(aCustomer.getId());
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newOne.setFirstName(aCustomer.getFirstName());
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newOne.setLastName(aCustomer.getLastName());
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newOne.setStreet(aCustomer.getStreet());
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newOne.setCity(aCustomer.getCity());
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newOne.setPostalCode(aCustomer.getPostalCode());
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newOne.setState(aCustomer.getState());
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newOne.setPhoneNumber(aCustomer.getPhoneNumber());
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newOne.setEmail(aCustomer.getEmail());
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feedback[i] = newOne;
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}
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return feedback;
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}
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}
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@@ -0,0 +1,73 @@
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package com.baeldung.jsonoptimization;
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import java.util.Objects;
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public class CustomerSlim {
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private long id;
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private String name;
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private String address;
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getAddress() {
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return address;
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}
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public void setAddress(String address) {
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this.address = address;
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}
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@Override
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public int hashCode() {
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return Objects.hash(address, id, name);
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (!(obj instanceof CustomerSlim)) {
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return false;
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}
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CustomerSlim other = (CustomerSlim) obj;
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return Objects.equals(address, other.address) && id == other.id && Objects.equals(name, other.name);
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}
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@Override
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public String toString() {
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return "CustomerSlim [id=" + id + ", name=" + name + ", address=" + address + "]";
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}
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public static CustomerSlim[] fromCustomers(Customer[] customers) {
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CustomerSlim[] feedback = new CustomerSlim[customers.length];
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for (int i = 0; i < customers.length; i++) {
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Customer aCustomer = customers[i];
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CustomerSlim newOne = new CustomerSlim();
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newOne.setId(aCustomer.getId());
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newOne.setName(aCustomer.getFirstName() + " " + aCustomer.getLastName());
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newOne.setAddress(aCustomer.getStreet() + ", " + aCustomer.getCity() + " " + aCustomer.getState() + " " + aCustomer.getPostalCode());
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feedback[i] = newOne;
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}
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return feedback;
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}
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}
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@@ -0,0 +1,37 @@
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package com.baeldung.jsonoptimization;
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import java.io.IOException;
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||||
|
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import com.fasterxml.jackson.core.JsonParser;
|
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import com.fasterxml.jackson.core.ObjectCodec;
|
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import com.fasterxml.jackson.databind.DeserializationContext;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
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public class CustomerSlimDeserializer extends StdDeserializer<CustomerSlim> {
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private static final long serialVersionUID = 1L;
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public CustomerSlimDeserializer() {
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this(null);
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}
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public CustomerSlimDeserializer(Class<CustomerSlim> t) {
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super(t);
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}
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@Override
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public CustomerSlim deserialize(JsonParser parser, DeserializationContext deserializer) throws IOException {
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CustomerSlim feedback = new CustomerSlim();
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ObjectCodec codec = parser.getCodec();
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JsonNode node = codec.readTree(parser);
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feedback.setId(node.get(0)
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.asLong());
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feedback.setName(node.get(1)
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.asText());
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feedback.setAddress(node.get(2)
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||||
.asText());
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return feedback;
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}
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}
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@@ -0,0 +1,28 @@
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||||
package com.baeldung.jsonoptimization;
|
||||
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||||
import java.io.IOException;
|
||||
|
||||
import com.fasterxml.jackson.core.JsonGenerator;
|
||||
import com.fasterxml.jackson.databind.SerializerProvider;
|
||||
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
|
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|
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public class CustomerSlimSerializer extends StdSerializer<CustomerSlim> {
|
||||
private static final long serialVersionUID = 1L;
|
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|
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public CustomerSlimSerializer() {
|
||||
this(null);
|
||||
}
|
||||
|
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public CustomerSlimSerializer(Class<CustomerSlim> t) {
|
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super(t);
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}
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@Override
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public void serialize(CustomerSlim customer, JsonGenerator jsonGenerator, SerializerProvider serializer) throws IOException {
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jsonGenerator.writeStartArray();
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jsonGenerator.writeNumber(customer.getId());
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jsonGenerator.writeString(customer.getName());
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jsonGenerator.writeString(customer.getAddress());
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jsonGenerator.writeEndArray();
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||||
}
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}
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||||
@@ -0,0 +1,81 @@
|
||||
package com.baeldung.jsonoptimization;
|
||||
|
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import java.util.Objects;
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||||
|
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import com.fasterxml.jackson.annotation.JsonProperty;
|
||||
|
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public class CustomerSlimShortNames {
|
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|
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@JsonProperty("i")
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private long id;
|
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|
||||
@JsonProperty("n")
|
||||
private String name;
|
||||
|
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@JsonProperty("a")
|
||||
private String address;
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||||
|
||||
public long getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(long id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public String getAddress() {
|
||||
return address;
|
||||
}
|
||||
|
||||
public void setAddress(String address) {
|
||||
this.address = address;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
return Objects.hash(address, id, name);
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj) {
|
||||
return true;
|
||||
}
|
||||
if (!(obj instanceof CustomerSlimShortNames)) {
|
||||
return false;
|
||||
}
|
||||
CustomerSlimShortNames other = (CustomerSlimShortNames) obj;
|
||||
return Objects.equals(address, other.address) && id == other.id && Objects.equals(name, other.name);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return "CustomerSlim [id=" + id + ", name=" + name + ", address=" + address + "]";
|
||||
}
|
||||
|
||||
public static CustomerSlimShortNames[] fromCustomers(Customer[] customers) {
|
||||
CustomerSlimShortNames[] feedback = new CustomerSlimShortNames[customers.length];
|
||||
|
||||
for (int i = 0; i < customers.length; i++) {
|
||||
Customer aCustomer = customers[i];
|
||||
CustomerSlimShortNames newOne = new CustomerSlimShortNames();
|
||||
|
||||
newOne.setId(aCustomer.getId());
|
||||
newOne.setName(aCustomer.getFirstName() + " " + aCustomer.getLastName());
|
||||
newOne.setAddress(aCustomer.getStreet() + ", " + aCustomer.getCity() + " " + aCustomer.getState() + " " + aCustomer.getPostalCode());
|
||||
|
||||
feedback[i] = newOne;
|
||||
}
|
||||
|
||||
return feedback;
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user