Java tutorial
/** * Copyright 2010-2013 Nokia * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.googlecode.jsonschema2pojo.integration; import static com.googlecode.jsonschema2pojo.integration.util.CodeGenerationHelper.*; import static org.hamcrest.Matchers.*; import static org.junit.Assert.*; import java.beans.IntrospectionException; import java.beans.PropertyDescriptor; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import org.junit.Test; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.ObjectMapper; public class PropertiesIT { private final ObjectMapper mapper = new ObjectMapper(); @Test @SuppressWarnings("rawtypes") public void propertiesWithNullValuesAreOmittedWhenSerialized() throws ClassNotFoundException, IntrospectionException, InstantiationException, IllegalAccessException, InvocationTargetException { ClassLoader resultsClassLoader = generateAndCompile("/schema/properties/nullProperties.json", "com.example"); Class generatedType = resultsClassLoader.loadClass("com.example.NullProperties"); Object instance = generatedType.newInstance(); Method setter = new PropertyDescriptor("property", generatedType).getWriteMethod(); setter.invoke(instance, "value"); assertThat(mapper.valueToTree(instance).toString(), containsString("property")); setter.invoke(instance, (Object) null); assertThat(mapper.valueToTree(instance).toString(), not(containsString("property"))); } @Test @SuppressWarnings("rawtypes") public void propertiesAreSerializedInCorrectOrder() throws ClassNotFoundException, IntrospectionException, InstantiationException, IllegalAccessException, InvocationTargetException { ClassLoader resultsClassLoader = generateAndCompile("/schema/properties/orderedProperties.json", "com.example"); Class generatedType = resultsClassLoader.loadClass("com.example.OrderedProperties"); Object instance = generatedType.newInstance(); new PropertyDescriptor("type", generatedType).getWriteMethod().invoke(instance, "1"); new PropertyDescriptor("id", generatedType).getWriteMethod().invoke(instance, "2"); new PropertyDescriptor("name", generatedType).getWriteMethod().invoke(instance, "3"); new PropertyDescriptor("hastickets", generatedType).getWriteMethod().invoke(instance, true); new PropertyDescriptor("starttime", generatedType).getWriteMethod().invoke(instance, "4"); String serialized = mapper.valueToTree(instance).toString(); assertThat("Properties are not in expected order", serialized.indexOf("type"), is(lessThan(serialized.indexOf("id")))); assertThat("Properties are not in expected order", serialized.indexOf("id"), is(lessThan(serialized.indexOf("name")))); assertThat("Properties are not in expected order", serialized.indexOf("name"), is(lessThan(serialized.indexOf("hastickets")))); assertThat("Properties are not in expected order", serialized.indexOf("hastickets"), is(lessThan(serialized.indexOf("starttime")))); } @Test @SuppressWarnings("rawtypes") public void usePrimitivesArgumentCausesPrimitiveTypes() throws ClassNotFoundException, IntrospectionException, InstantiationException, IllegalAccessException, InvocationTargetException { ClassLoader resultsClassLoader = generateAndCompile("/schema/properties/primitiveProperties.json", "com.example", config("usePrimitives", true)); Class generatedType = resultsClassLoader.loadClass("com.example.PrimitiveProperties"); assertThat(new PropertyDescriptor("a", generatedType).getReadMethod().getReturnType().getName(), is("int")); assertThat(new PropertyDescriptor("b", generatedType).getReadMethod().getReturnType().getName(), is("double")); assertThat(new PropertyDescriptor("c", generatedType).getReadMethod().getReturnType().getName(), is("boolean")); } @Test @SuppressWarnings("rawtypes") public void wordDelimitersCausesCamelCase() throws ClassNotFoundException, IntrospectionException, InstantiationException, IllegalAccessException, InvocationTargetException { ClassLoader resultsClassLoader = generateAndCompile("/schema/properties/propertiesWithWordDelimiters.json", "com.example", config("usePrimitives", true, "propertyWordDelimiters", "_ -")); Class generatedType = resultsClassLoader.loadClass("com.example.WordDelimit"); Object instance = generatedType.newInstance(); new PropertyDescriptor("propertyWithUnderscores", generatedType).getWriteMethod().invoke(instance, "a_b_c"); new PropertyDescriptor("propertyWithHyphens", generatedType).getWriteMethod().invoke(instance, "a-b-c"); new PropertyDescriptor("propertyWithMixedDelimiters", generatedType).getWriteMethod().invoke(instance, "a b_c-d"); JsonNode jsonified = mapper.valueToTree(instance); assertThat(jsonified.has("property_with_underscores"), is(true)); assertThat(jsonified.has("property-with-hyphens"), is(true)); assertThat(jsonified.has("property_with mixed-delimiters"), is(true)); } @Test public void propertyNamesThatAreJavaKeywordsCanBeSerialized() throws ClassNotFoundException, InstantiationException, IllegalAccessException, IOException { ClassLoader resultsClassLoader = generateAndCompile("/schema/properties/propertiesThatAreJavaKeywords.json", "com.example"); Class<?> generatedType = resultsClassLoader.loadClass("com.example.PropertiesThatAreJavaKeywords"); String valuesAsJsonString = "{\"public\":\"a\",\"void\":\"b\",\"enum\":\"c\",\"abstract\":\"d\"}"; Object valuesAsObject = mapper.readValue(valuesAsJsonString, generatedType); JsonNode valueAsJsonNode = mapper.valueToTree(valuesAsObject); assertThat(valueAsJsonNode.path("public").asText(), is("a")); assertThat(valueAsJsonNode.path("void").asText(), is("b")); assertThat(valueAsJsonNode.path("enum").asText(), is("c")); assertThat(valueAsJsonNode.path("abstract").asText(), is("d")); } @Test public void propertyCalledClassCanBeSerialized() throws ClassNotFoundException, InstantiationException, IllegalAccessException, IOException { ClassLoader resultsClassLoader = generateAndCompile("/schema/properties/propertyCalledClass.json", "com.example"); Class<?> generatedType = resultsClassLoader.loadClass("com.example.PropertyCalledClass"); String valuesAsJsonString = "{\"class\":\"a\"}"; Object valuesAsObject = mapper.readValue(valuesAsJsonString, generatedType); JsonNode valueAsJsonNode = mapper.valueToTree(valuesAsObject); assertThat(valueAsJsonNode.path("class").asText(), is("a")); } }