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io.vrap.codegen.languages.javalang.client.builder.requests.JavaStringHttpRequestRenderer.kt Maven / Gradle / Ivy
package io.vrap.codegen.languages.javalang.client.builder.requests
import com.google.common.collect.Lists
import com.google.common.net.MediaType
import io.vrap.codegen.languages.extensions.*
import io.vrap.codegen.languages.java.base.JavaSubTemplates
import io.vrap.codegen.languages.java.base.extensions.*
import io.vrap.rmf.codegen.firstUpperCase
import io.vrap.rmf.codegen.firstLowerCase
import io.vrap.rmf.codegen.io.TemplateFile
import io.vrap.rmf.codegen.rendering.MethodRenderer
import io.vrap.rmf.codegen.rendering.utils.escapeAll
import io.vrap.rmf.codegen.rendering.utils.keepIndentation
import io.vrap.rmf.codegen.types.VrapObjectType
import io.vrap.rmf.codegen.types.VrapScalarType
import io.vrap.rmf.codegen.types.VrapTypeProvider
import io.vrap.rmf.raml.model.resources.Method
import io.vrap.rmf.raml.model.resources.Resource
import io.vrap.rmf.raml.model.resources.Trait
import io.vrap.rmf.raml.model.types.*
import io.vrap.rmf.raml.model.types.Annotation
import io.vrap.rmf.raml.model.util.StringCaseFormat
import org.eclipse.emf.ecore.EObject
/**
* Query parameters with this annotation should be ignored by JVM sdk.
*/
class JavaStringHttpRequestRenderer constructor(override val vrapTypeProvider: VrapTypeProvider) : MethodRenderer, JavaObjectTypeExtensions, JavaEObjectTypeExtensions {
override fun render(type: Method): TemplateFile {
val vrapType = vrapTypeProvider.doSwitch(type as EObject) as VrapObjectType
val implements = Lists.newArrayList()
.plus(
when (val ex = type.getAnnotation("java-implements") ) {
is Annotation -> {
(ex.value as StringInstance).value.escapeAll()
}
else -> null
}
)
.plus(
type.`is`.distinctBy { it.trait.name }.map { "${it.trait.className()}<${type.toStringRequestName()}>".escapeAll() }
)
.filterNotNull()
if (type.bodies == null || type.bodies.isEmpty() || type.bodies[0].type.toVrapType() !is VrapObjectType) {
return TemplateFile("", "ignore")
}
val content = """
|package ${vrapType.`package`.toJavaPackage()};
|
|import io.vrap.rmf.base.client.utils.Utils;
|
|import java.io.InputStream;
|import java.io.IOException;
|
|import java.net.URI;
|import java.net.URLConnection;
|import java.nio.charset.StandardCharsets;
|import java.nio.file.Files;
|
|import java.time.Duration;
|import java.util.ArrayList;
|import java.util.Collection;
|import java.util.List;
|import java.util.Map;
|import java.util.HashMap;
|import java.util.Optional;
|import java.util.function.Function;
|import java.util.function.Supplier;
|import java.util.stream.Collectors;
|import java.util.concurrent.CompletableFuture;
|import io.vrap.rmf.base.client.utils.Generated;
|import com.fasterxml.jackson.core.type.TypeReference;
|
|import javax.annotation.Nullable;
|
|import java.io.UnsupportedEncodingException;
|import java.net.URLEncoder;
|import io.vrap.rmf.base.client.*;
|${type.imports()}
|import org.apache.commons.lang3.builder.EqualsBuilder;
|import org.apache.commons.lang3.builder.HashCodeBuilder;
|
|import static io.vrap.rmf.base.client.utils.ClientUtils.blockingWait;
|
|/**
|${type.toComment(" *").escapeAll()}
| *
| * \
| <${type.builderComment().escapeAll()}>
| */
|<${JavaSubTemplates.generatedAnnotation}>${if (type.markDeprecated() ) """
|@Deprecated""" else ""}
|public class ${type.toStringRequestName()} extends StringBodyApiMethod\<${type.toStringRequestName()}, ${type.javaReturnType(vrapTypeProvider)}\>${if (implements.isNotEmpty()) " implements ${implements.joinToString(", ")}" else ""} {
|
| @Override
| public TypeReference\<${type.javaReturnType(vrapTypeProvider)}\> resultType() {
| return new TypeReference\<${type.javaReturnType(vrapTypeProvider)}\>() {
| };
| }
|
| <${type.fields()}>
|
| <${type.constructor()}>
|
| <${type.copyConstructor()}>
|
| <${type.buildRequestMethod()}>
|
| <${type.executeBlockingMethod()}>
|
| <${type.executeMethod()}>
|
| <${type.pathArgumentsGetters()}>
|
| <${type.queryParamsGetters()}>
|
| <${type.pathArgumentsSetters()}>
|
| <${type.queryParamsSetters()}>
|
| <${type.queryParamsTemplateSetters()}>
|
| <${type.bodyMethods()}>
|
| <${type.equalsMethod()}>
|
| @Override
| protected ${type.toStringRequestName()} copy() {
| return new ${type.toStringRequestName()}(this);
| }
|}
""".trimMargin()
.keepIndentation()
return TemplateFile(
relativePath = "${vrapType.`package`}.${type.toStringRequestName()}".replace(".", "/") + ".java",
content = content
)
}
fun Method.builderComment(): String {
val resource = this.eContainer() as Resource
return """
|\
|\
\{@code
| CompletableFuture\\> result = apiRoot
| <${builderComment(resource, this)}>
|}\\
|\
""".trimMargin().keepIndentation().split("\n").joinToString("\n", transform = { "* $it"})
}
private fun builderComment(resource: Resource, method: Method) : String {
return resource.resourcePathList().map { r -> ".${r.getMethodName()}(${if (r.relativeUri.paramValues().isNotEmpty()) "\"${r.relativeUri.paramValues().joinToString("\", \"") { p -> "{$p}"} }\"" else ""})" }
.plus(".${method.method}(\"\")")
.plus(method.queryParameters.filter { it.required }.map { ".with${it.fieldName().firstUpperCase()}(${it.fieldName()})" })
.plus(".execute()")
.joinToString("\n")
}
private fun Method.equalsMethod() : String {
val methodBodyVrapType = this.bodies[0].type.toVrapType() as VrapObjectType
val body: String = methodBodyVrapType.simpleClassName.firstLowerCase()
val fields = this.pathArguments().plus(body).filterNot { s -> s.isEmpty() }
return """
|@Override
|public boolean equals(Object o) {
| if (this == o) return true;
|
| if (o == null || getClass() != o.getClass()) return false;
|
| ${this.toStringRequestName()} that = (${this.toStringRequestName()}) o;
|
| return new EqualsBuilder()
| <${fields.joinToString("\n") { ".append(${it}, that.${it})" }}>
| .isEquals();
|}
|
|@Override
|public int hashCode() {
| return new HashCodeBuilder(17, 37)
| <${fields.joinToString("\n") { ".append(${it})" }}>
| .toHashCode();
|}
""".trimMargin().keepIndentation()
}
private fun Trait.className(): String {
val vrapType = vrapTypeProvider.doSwitch(this as EObject) as VrapObjectType
return "${vrapType.`package`.toJavaPackage()}.${vrapType.simpleClassName}"
}
private fun Method.constructor(): String {
val constructorArguments = mutableListOf("final ApiHttpClient apiHttpClient")
val constructorAssignments = mutableListOf("super(apiHttpClient);")
this.pathArguments().map { "String $it" }.forEach { constructorArguments.add(it) }
this.pathArguments().map { "this.$it = $it;" }.forEach { constructorAssignments.add(it) }
val methodBodyVrapType = this.bodies[0].type.toVrapType() as VrapObjectType
val methodBodyArgument =
"String ${methodBodyVrapType.simpleClassName.firstLowerCase()}"
constructorArguments.add(methodBodyArgument)
val methodBodyAssignment =
"this.${methodBodyVrapType.simpleClassName.firstLowerCase()} = ${methodBodyVrapType.simpleClassName.firstLowerCase()};"
constructorAssignments.add(methodBodyAssignment)
return """
|public ${this.toStringRequestName()}(${constructorArguments.joinToString(separator = ", ")}) {
| <${constructorAssignments.joinToString(separator = "\n")}>
|}
""".trimMargin().keepIndentation().escapeAll()
}
private fun Method.copyConstructor(): String {
val constructorAssignments = mutableListOf("super(t);")
this.pathArguments().map { "this.$it = t.$it;" }.forEach { constructorAssignments.add(it) }
val methodBodyVrapType = this.bodies[0].type.toVrapType() as VrapObjectType
val methodBodyAssignment = "this.${methodBodyVrapType.simpleClassName.firstLowerCase()} = t.${methodBodyVrapType.simpleClassName.firstLowerCase()};"
constructorAssignments.add(methodBodyAssignment)
return """
|public ${this.toStringRequestName()}(${this.toStringRequestName()} t) {
| <${constructorAssignments.joinToString(separator = "\n")}>
|}
""".trimMargin().keepIndentation().escapeAll()
}
private fun Method.fields(): String {
val pathArgs = this.pathArguments().map { "private String $it;" }.joinToString(separator = "\n")
val methodBodyVrapType = this.bodies[0].type.toVrapType() as VrapObjectType
val body = "private String ${methodBodyVrapType.simpleClassName.firstLowerCase()};"
return """|
|<$pathArgs>
|
|<$body>
""".trimMargin()
}
private fun QueryParameter.fieldName(): String {
return StringCaseFormat.LOWER_CAMEL_CASE.apply(this.name.replace(".", "-"))
}
private fun Method.pathArguments() : List
{
return this.resource().fullUri.variables.toList()
}
private fun Method.buildRequestMethod() : String {
val pathArguments = this.pathArguments().map { "{$it}" }
var stringFormat = this.resource().fullUri.template
pathArguments.forEach { stringFormat = stringFormat.replace(it, "%s") }
val stringFormatArgs = pathArguments
.map { it.replace("{", "").replace("}", "") }
.map { "this.$it" }
.joinToString(separator = ", ")
stringFormat = stringFormat.trimStart('/')
val methodBodyVrapType = this.bodies[0].type.toVrapType() as VrapObjectType
val bodyName : String = methodBodyVrapType.simpleClassName.firstLowerCase()
val requestPathGeneration : String = """
|List params = new ArrayList<>(getQueryParamUriStrings());
|String httpRequestPath = String.format("$stringFormat", $stringFormatArgs);
|if (!params.isEmpty()) {
| httpRequestPath += "?" + String.join("&", params);
|}
""".trimMargin().escapeAll()
val bodySetter: String = """
|return new ApiHttpRequest(ApiHttpMethod.${this.method.name}, URI.create(httpRequestPath), getHeaders(), $bodyName.getBytes(StandardCharsets.UTF_8));
|""".trimMargin()
return """
|@Override
|protected ApiHttpRequest buildHttpRequest() {
| <$requestPathGeneration>
| $bodySetter
|}
""".trimMargin()
}
private fun Method.executeBlockingMethod() : String {
return """
|@Override
|public ApiHttpResponse\<${this.javaReturnType(vrapTypeProvider)}\> executeBlocking(final ApiHttpClient client, final Duration timeout) {
| return executeBlocking(client, timeout, ${this.javaReturnType(vrapTypeProvider)}.class);
|}
""".trimMargin()
}
private fun Method.executeMethod() : String {
return """
|@Override
|public CompletableFuture\\> execute(final ApiHttpClient client) {
| return execute(client, ${this.javaReturnType(vrapTypeProvider)}.class);
|}
""".trimMargin()
}
private fun Method.pathArgumentsGetters() : String = this.pathArguments()
.map { """
|public String get${it.firstUpperCase()}() {
| return this.$it;
|}""".trimMargin() }
.joinToString(separator = "\n")
private fun Method.pathArgumentsSetters() : String = this.pathArguments()
.map { """
|public void set${it.firstUpperCase()}(final String $it) {
| this.$it = $it;
|}""".trimMargin() }
.joinToString(separator = "\n\n")
private fun Method.queryParamsGetters() : String = this.queryParameters
.filter { it.getAnnotation(PLACEHOLDER_PARAM_ANNOTATION, true) == null }
.map { """
|public List get${it.fieldName().firstUpperCase()}() {
| return this.getQueryParam("${it.name}");
|}
""".trimMargin().escapeAll() }
.joinToString(separator = "\n\n")
private fun QueryParameter.witherType() : String {
val type = this.type
return when (type) {
is ArrayType -> type.items.toVrapType().simpleName().toScalarType()
else -> type.toVrapType().simpleName().toScalarType()
}
}
private fun QueryParameter.witherBoxedType() : String {
val type = this.type
return when (type) {
is ArrayType -> type.items.toVrapType().simpleName()
else -> type.toVrapType().simpleName()
}
}
private fun Method.queryParamsTemplateSetters() : String = this.queryParameters
.filter { it.getAnnotation(PLACEHOLDER_PARAM_ANNOTATION, true) != null }
.map {
val anno = it.getAnnotation("placeholderParam", true)
val o = anno.value as ObjectInstance
val paramName = o.value.stream().filter { propertyValue -> propertyValue.name == "paramName" }.findFirst().orElse(null).value as StringInstance
val placeholder = o.value.stream().filter { propertyValue -> propertyValue.name == "placeholder" }.findFirst().orElse(null).value as StringInstance
val template = o.value.stream().filter { propertyValue -> propertyValue.name == "template" }.findFirst().orElse(null).value as StringInstance
val value = "String.format(\"" + template.value.replace("<" + placeholder.value + ">", "%s") + "\", " + placeholder.value + ")"
val placeholderValue = StringCaseFormat.LOWER_CAMEL_CASE.apply(placeholder.value)
val methodName = StringCaseFormat.UPPER_CAMEL_CASE.apply(paramName.value)
val parameters = "final String $placeholderValue, final TValue ${paramName.value}"
val listParameters = "final String $placeholderValue, final Collection ${paramName.value}"
return """
|/**
| * set ${paramName.value} with the specificied value
| * @param value type
| * @param $placeholderValue parameter name
| * @param ${paramName.value} parameter value
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} with$methodName($parameters) {
| return copy().withQueryParam($value, ${paramName.value});
|}
|
|/**
| * add additional ${paramName.value} query parameter
| * @param value type
| * @param $placeholderValue parameter name
| * @param ${paramName.value} parameter value
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} add$methodName($parameters) {
| return copy().addQueryParam($value, ${paramName.value});
|}
|
|/**
| * set ${paramName.value} with the specificied values
| * @param value type
| * @param $placeholderValue parameter name
| * @param ${paramName.value} parameter values
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} with$methodName($listParameters) {
| final String placeholderName = String.format("var.%s", ${StringCaseFormat.LOWER_CAMEL_CASE.apply(placeholder.value)});
| return copy().withoutQueryParam(placeholderName).addQueryParams(${paramName.value}.stream().map(s -> new ParamEntry<>(placeholderName, s.toString())).collect(Collectors.toList()));
|}
|
|/**
| * add additional ${paramName.value} query parameters
| * @param value type
| * @param $placeholderValue parameter name
| * @param ${paramName.value} parameter values
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} add$methodName($listParameters) {
| final String placeholderName = String.format("var.%s", ${StringCaseFormat.LOWER_CAMEL_CASE.apply(placeholder.value)});
| return copy().addQueryParams(${paramName.value}.stream().map(s -> new ParamEntry<>(placeholderName, s.toString())).collect(Collectors.toList()));
|}
""".trimMargin().escapeAll()
}
.joinToString(separator = "\n\n")
private fun Method.queryParamsSetters() : String = this.queryParameters
.filter { it.getAnnotation(PLACEHOLDER_PARAM_ANNOTATION, true) == null }
.map { """
|/**
| * set ${it.fieldName()} with the specified value
| * @param value type
| * @param ${it.fieldName()} value to be set
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} with${it.fieldName().firstUpperCase()}(final TValue ${it.fieldName()}) {
| return copy().withQueryParam("${it.name}", ${it.fieldName()});
|}
|
|/**
| * add additional ${it.fieldName()} query parameter
| * @param value type
| * @param ${it.fieldName()} value to be added
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} add${it.fieldName().firstUpperCase()}(final TValue ${it.fieldName()}) {
| return copy().addQueryParam("${it.name}", ${it.fieldName()});
|}
|
|/**
| * set ${it.fieldName()} with the specified value
| * @param supplier supplier for the value to be set
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} with${it.fieldName().firstUpperCase()}(final Supplier<${it.witherBoxedType()}> supplier) {
| return copy().withQueryParam("${it.name}", supplier.get());
|}
|
|/**
| * add additional ${it.fieldName()} query parameter
| * @param supplier supplier for the value to be added
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} add${it.fieldName().firstUpperCase()}(final Supplier<${it.witherBoxedType()}> supplier) {
| return copy().addQueryParam("${it.name}", supplier.get());
|}
|
|/**
| * set ${it.fieldName()} with the specified value
| * @param op builder for the value to be set
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} with${it.fieldName().firstUpperCase()}(final Function op) {
| return copy().withQueryParam("${it.name}", op.apply(new StringBuilder()));
|}
|
|/**
| * add additional ${it.fieldName()} query parameter
| * @param op builder for the value to be added
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} add${it.fieldName().firstUpperCase()}(final Function op) {
| return copy().addQueryParam("${it.name}", op.apply(new StringBuilder()));
|}
|
|/**
| * set ${it.fieldName()} with the specified values
| * @param value type
| * @param ${it.fieldName()} values to be set
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} with${it.fieldName().firstUpperCase()}(final Collection ${it.fieldName()}) {
| return copy().withoutQueryParam("${it.name}").addQueryParams(${it.fieldName()}.stream().map(s -> new ParamEntry<>("${it.name}", s.toString())).collect(Collectors.toList()));
|}
|
|/**
| * add additional ${it.fieldName()} query parameters
| * @param value type
| * @param ${it.fieldName()} values to be added
| * @return ${this.toStringRequestName()}
| */
|public ${this.toStringRequestName()} add${it.fieldName().firstUpperCase()}(final Collection ${it.fieldName()}) {
| return copy().addQueryParams(${it.fieldName()}.stream().map(s -> new ParamEntry<>("${it.name}", s.toString())).collect(Collectors.toList()));
|}
""".trimMargin().escapeAll() }
.joinToString(separator = "\n\n")
private fun Method.bodyMethods() : String =
if(this.bodies != null && this.bodies.isNotEmpty() && this.bodies[0].type.toVrapType() is VrapObjectType) {
val methodBodyVrapType = this.bodies[0].type.toVrapType() as VrapObjectType
"""
|public String getBody() {
| return ${methodBodyVrapType.simpleClassName.firstLowerCase()};
|}
|
|public ${this.toStringRequestName()} withBody(String ${methodBodyVrapType.simpleClassName.firstLowerCase()}) {
| ${this.toStringRequestName()} t = copy();
| t.${methodBodyVrapType.simpleClassName.firstLowerCase()} = ${methodBodyVrapType.simpleClassName.firstLowerCase()};
| return t;
|}
""".trimMargin()
} else ""
private fun Method.imports(): String {
return this.queryParameters
.map {
it.type.toVrapType()
}
.filter { it !is VrapScalarType }
.map {
getImportsForType(it)
}
.filter { !it.isNullOrBlank() }
.map { "import ${it};" }
.joinToString(separator = "\n")
}
}
