Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.xfinity.blueprint_compiler.CodeGenerator Maven / Gradle / Ivy
/*
* Copyright 2017 Comcast Cable Communications Management, LLC
* 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.xfinity.blueprint_compiler;
import com.squareup.javapoet.ArrayTypeName;
import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.FieldSpec;
import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.ParameterSpec;
import com.squareup.javapoet.ParameterizedTypeName;
import com.squareup.javapoet.TypeName;
import com.squareup.javapoet.TypeSpec;
import com.sun.tools.javac.util.Pair;
import javax.lang.model.element.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import static com.squareup.javapoet.TypeName.INT;
import static com.squareup.javapoet.TypeName.VOID;
import static com.squareup.javapoet.TypeSpec.classBuilder;
import static javax.lang.model.element.Modifier.PUBLIC;
final class CodeGenerator {
private final List componentViewInfoList;
private final Map>> defaultPresenterContructorMap;
CodeGenerator(List componentViewInfoList,
Map>> defaultPresenterContructorMap) {
this.componentViewInfoList = componentViewInfoList;
this.defaultPresenterContructorMap = defaultPresenterContructorMap;
}
TypeSpec generateComponentRegistry() {
List fields = new ArrayList<>();
List componentViewSwitchStatements = new ArrayList<>();
List defaultPresenterSwitchStatements = new ArrayList<>();
componentViewSwitchStatements.add("switch(viewType) {\n");
defaultPresenterSwitchStatements.add("switch(viewType) {\n");
TypeName objectVarArgsType = ArrayTypeName.get(Object[].class);
ParameterSpec parameterSpec = ParameterSpec.builder(objectVarArgsType, "args").build();
MethodSpec.Builder getDefaultPresenterMethodbuilder1 =
MethodSpec.methodBuilder("getDefaultPresenter")
.addModifiers(PUBLIC)
.addParameter(ClassName.get("com.xfinity.blueprint.view", "ComponentView"), "componentView")
.addParameter(parameterSpec)
.returns(ClassName.get("com.xfinity.blueprint.presenter", "ComponentPresenter"));
MethodSpec.Builder getDefaultPresenterMethodbuilder2 =
MethodSpec.methodBuilder("getDefaultPresenter")
.addModifiers(PUBLIC)
.addParameter(INT, "viewType")
.addParameter(parameterSpec)
.returns(ClassName.get("com.xfinity.blueprint.presenter", "ComponentPresenter"));
List> contructorArgs = new ArrayList<>();
for (BlueprintProcessor.ComponentViewInfo componentViewInfo : componentViewInfoList) {
String viewTypeFieldName = componentViewInfo.viewTypeName + "_VIEW_TYPE";
FieldSpec fieldSpec = FieldSpec.builder(INT, viewTypeFieldName, Modifier.PUBLIC, Modifier.STATIC,
Modifier.FINAL).initializer(String.valueOf(componentViewInfo.viewType)).build();
fields.add(fieldSpec);
componentViewSwitchStatements.add("case " + viewTypeFieldName + ":\n");
componentViewSwitchStatements.add("return new " + componentViewInfo.componentView + "();\n");
if (componentViewInfo.defaultPresenter != null) {
getDefaultPresenterMethodbuilder1.addCode("if (componentView instanceof "
+ componentViewInfo.componentView + ") {\n");
String returnStatement;
List> defaultPresenterContructorArgs =
defaultPresenterContructorMap.get(componentViewInfo.defaultPresenter);
if (defaultPresenterContructorArgs == null) {
returnStatement = "return new " + componentViewInfo.defaultPresenter + "()";
} else {
StringBuilder statementBuilder = new StringBuilder("return new " + componentViewInfo.defaultPresenter + "(");
for (int j = 0; j < defaultPresenterContructorArgs.size(); j++) {
Pair argPair = defaultPresenterContructorArgs.get(j);
String argName = argPair.snd; //arg name
statementBuilder.append(argName);
if (j < defaultPresenterContructorArgs.size() - 1) {
statementBuilder.append(", ");
} else {
statementBuilder.append(")");
}
//check if an arg with this name and type was already added to the ComponentRegistry's ctor, if
// not, add it
if (!contructorArgs.contains(argPair)) {
contructorArgs.add(argPair);
}
}
returnStatement = statementBuilder.toString();
}
getDefaultPresenterMethodbuilder1.addStatement(returnStatement);
getDefaultPresenterMethodbuilder1.addCode("}\n");
defaultPresenterSwitchStatements.add("case " + viewTypeFieldName + ":\n");
defaultPresenterSwitchStatements.add(returnStatement + ";\n");
}
}
MethodSpec.Builder getComponentViewMethodbuilder = MethodSpec.methodBuilder("getComponentView")
.addModifiers(PUBLIC)
.addParameter(INT, "viewType")
.returns(ClassName.get("com.xfinity.blueprint.view", "ComponentView"));
for (String statement : componentViewSwitchStatements) {
getComponentViewMethodbuilder.addCode(statement);
}
getComponentViewMethodbuilder.addCode("}\n");
getComponentViewMethodbuilder.addStatement("return null");
getDefaultPresenterMethodbuilder1.addStatement("return null");
for (String statement : defaultPresenterSwitchStatements) {
getDefaultPresenterMethodbuilder2.addCode(statement);
}
getDefaultPresenterMethodbuilder2.addCode("}\n");
getDefaultPresenterMethodbuilder2.addStatement("return null");
MethodSpec.Builder componentRegistryConstructorBuilder = MethodSpec.constructorBuilder()
.addModifiers(PUBLIC);
contructorArgs.sort((o1, o2) -> (o1.fst.toString().compareToIgnoreCase(o2.fst.toString())));
for (Pair argPair : contructorArgs) {
fields.add(FieldSpec.builder(argPair.fst, argPair.snd).addModifiers(Modifier.PRIVATE)
.addModifiers(Modifier.FINAL).build());
componentRegistryConstructorBuilder.addParameter(ParameterSpec.builder(argPair.fst, argPair.snd).build());
componentRegistryConstructorBuilder.addStatement("this." + argPair.snd + " = " + argPair.snd);
}
TypeSpec.Builder classBuilder = classBuilder("AppComponentRegistry")
.addModifiers(PUBLIC)
.addSuperinterface(ClassName.get("com.xfinity.blueprint", "ComponentRegistry"))
.addFields(fields)
.addMethod(componentRegistryConstructorBuilder.build())
.addMethod(getComponentViewMethodbuilder.build())
.addMethod(getDefaultPresenterMethodbuilder1.build())
.addMethod(getDefaultPresenterMethodbuilder2.build());
return classBuilder.build();
}
List> generateViewBaseClasses() {
List> viewDelegatePairs = new ArrayList<>();
for (BlueprintProcessor.ComponentViewInfo componentViewInfo : componentViewInfoList) {
String componentViewPackageName =
componentViewInfo.componentView.substring(0, componentViewInfo.componentView.lastIndexOf("."));
String viewHolderPackageName =
componentViewInfo.viewHolder.substring(0, componentViewInfo.viewHolder.lastIndexOf("."));
String viewHolderName = componentViewInfo.viewHolder.substring(componentViewInfo.viewHolder.lastIndexOf(".") + 1,
componentViewInfo.viewHolder.length());
TypeName viewHolderTypeName = ClassName.get(viewHolderPackageName, viewHolderName);
TypeName viewBinderTypeName;
if (componentViewInfo.viewBinder != null && componentViewInfo.viewBinder.equals(BlueprintProcessor.DEFAULT_VIEW_BINDER)) {
viewBinderTypeName = ClassName.get("com.xfinity.blueprint.view", "ComponentViewBinder");
} else {
viewBinderTypeName = ParameterizedTypeName.get(ClassName.get("com.xfinity.blueprint.view", "ComponentViewBinder"),
viewHolderTypeName);
}
FieldSpec viewBinderFieldSpec = null;
if (componentViewInfo.viewBinder != null) {
viewBinderFieldSpec = FieldSpec.builder(viewBinderTypeName, "viewBinder", Modifier.PRIVATE,
Modifier.FINAL)
.initializer("new " + componentViewInfo.viewBinder + "()").build();
}
FieldSpec viewHolderFieldSpec = FieldSpec.builder(viewHolderTypeName, "viewHolder", Modifier.PRIVATE).build();
ClassName notNullAnnotation = ClassName.get("org.jetbrains.annotations", "NotNull");
MethodSpec getViewHolderMethod = MethodSpec.methodBuilder("getViewHolder")
.addModifiers(PUBLIC)
.addAnnotation(notNullAnnotation)
.addAnnotation(Override.class)
.addStatement("return viewHolder")
.returns(viewHolderTypeName)
.build();
ParameterSpec viewHolderParameterSpec = ParameterSpec.builder(viewHolderTypeName, "viewHolder").build();
MethodSpec setViewHolderMethod = MethodSpec.methodBuilder("setViewHolder")
.addModifiers(PUBLIC)
.addAnnotation(notNullAnnotation)
.addAnnotation(Override.class)
.addParameter(viewHolderParameterSpec)
.build();
MethodSpec.Builder getComponentViewBinderMethodBuilder = MethodSpec.methodBuilder("getComponentViewBinder")
.addModifiers(PUBLIC)
.addAnnotation(notNullAnnotation)
.addAnnotation(Override.class)
.returns(viewBinderTypeName);
if (componentViewInfo.viewBinder != null) {
getComponentViewBinderMethodBuilder.addStatement("return viewBinder");
} else {
getComponentViewBinderMethodBuilder.addStatement("return null");
}
MethodSpec getComponentViewBinderMethod = getComponentViewBinderMethodBuilder.build();
ParameterSpec viewGroupParam = ParameterSpec.builder(ClassName.get("android.view", "ViewGroup"), "parent")
.addAnnotation(notNullAnnotation).build();
MethodSpec onCreateViewHolderMethod =
MethodSpec.methodBuilder("onCreateViewHolder")
.addModifiers(PUBLIC)
.addAnnotation(notNullAnnotation)
.addAnnotation(Override.class)
.addParameter(viewGroupParam)
.addStatement("android.view.View view = android.view.LayoutInflater.from(parent.getContext()).inflate(getViewType(), parent, false)")
.addStatement("return new " + componentViewInfo.viewHolder + "(view)")
.returns(viewHolderTypeName)
.build();
ParameterSpec componentPresenterParam =
ParameterSpec.builder(ClassName.get("com.xfinity.blueprint.presenter", "ComponentPresenter"),
"componentPresenter")
.addAnnotation(notNullAnnotation).build();
ParameterSpec viewHolderParam =
ParameterSpec.builder(ClassName.get("android.support.v7.widget", "RecyclerView").nestedClass("ViewHolder"),
"viewHolder")
.addAnnotation(notNullAnnotation).build();
ParameterSpec positionParam = ParameterSpec.builder(INT, "position").addAnnotation(notNullAnnotation).build();
TypeName componentViewTypeName = ParameterizedTypeName.get(ClassName.get("com.xfinity.blueprint.view", "ComponentView"),
viewHolderTypeName);
MethodSpec.Builder onBindViewHolderMethodBuilder =
MethodSpec.methodBuilder("onBindViewHolder")
.addModifiers(PUBLIC)
.addAnnotation(Override.class)
.addParameters(Arrays.asList(componentPresenterParam, viewHolderParam, positionParam))
.addCode("if (viewHolder instanceof " + componentViewInfo.viewHolder + ") {\n")
.addStatement("this.viewHolder = (" + componentViewInfo.viewHolder + ") viewHolder")
.addCode("} else {\n")
.addStatement("throw new IllegalArgumentException(\"You can only attach " + viewHolderName + " to this view object\")")
.addCode("}\n");
if (componentViewInfo.viewBinder != null) {
onBindViewHolderMethodBuilder.addStatement("viewBinder.bind(componentPresenter, this, this.viewHolder, position)");
}
MethodSpec onBindViewHolderMethod = onBindViewHolderMethodBuilder.build();
MethodSpec getViewTypeMethod =
MethodSpec.methodBuilder("getViewType")
.addModifiers(PUBLIC)
.addAnnotation(Override.class)
.returns(INT)
.addStatement("return " + componentViewInfo.viewType)
.build();
List onBindViewHolderMethodFields = new ArrayList<>();
if (viewBinderFieldSpec != null) {
onBindViewHolderMethodFields.add(viewBinderFieldSpec);
}
List methods = new ArrayList<>(Arrays.asList(getViewHolderMethod,
setViewHolderMethod,
getComponentViewBinderMethod,
onCreateViewHolderMethod,
onBindViewHolderMethod,
getViewTypeMethod));
if (componentViewInfo.children != null) {
for (String child : componentViewInfo.children.keySet()) {
String type = componentViewInfo.children.get(child);
String childCapitalized = child.substring(0, 1).toUpperCase() + child.substring(1);
String childGetter = "get" + childCapitalized + "()";
if (type.equals("android.widget.TextView")) {
methods.add(getSetTextMethodSpec(childCapitalized, childGetter));
}
if (type.equals("android.widget.ImageView")) {
methods.add(getSetImageDrawableMethodSpec(childCapitalized, childGetter));
}
methods.add(getSetVisibilityMethodSpec(childCapitalized, childGetter));
methods.add(getSetBackgroundColorMethodSpec(childCapitalized, childGetter));
}
}
onBindViewHolderMethodFields.add(viewHolderFieldSpec);
TypeSpec.Builder classBuilder = classBuilder(componentViewInfo.viewTypeName + "Base")
.addModifiers(PUBLIC)
.addSuperinterface(componentViewTypeName)
.addFields(onBindViewHolderMethodFields)
.addMethods(methods);
viewDelegatePairs.add(new Pair<>(componentViewPackageName, classBuilder.build()));
}
return viewDelegatePairs;
}
private MethodSpec getSetTextMethodSpec(String childNameCapitalized, String childGetterName) {
ParameterSpec textParam =
ParameterSpec.builder(ClassName.get("java.lang", "CharSequence"),
"text").build();
//Warning: this code assumes that fields all have getters, and that they're named getFieldName()
return MethodSpec.methodBuilder("set" + childNameCapitalized + "Text")
.addModifiers(PUBLIC)
.addParameter(textParam)
.returns(VOID)
.addStatement("viewHolder." + childGetterName + ".setText(text)")
.build();
}
private MethodSpec getSetVisibilityMethodSpec(String childName, String childGetterName) {
ParameterSpec visibilityParam =
ParameterSpec.builder(INT, "visibility").build();
return MethodSpec.methodBuilder("set" + childName + "Visibility")
.addModifiers(PUBLIC)
.addParameter(visibilityParam)
.returns(VOID)
.addStatement("viewHolder." + childGetterName + ".setVisibility(visibility)")
.build();
}
private MethodSpec getSetBackgroundColorMethodSpec(String childName, String childGetterName) {
ParameterSpec colorParam =
ParameterSpec.builder(INT, "color").build();
return MethodSpec.methodBuilder("set" + childName + "BackgroundColor")
.addModifiers(PUBLIC)
.addParameter(colorParam)
.returns(VOID)
.addStatement("viewHolder." + childGetterName + ".setBackgroundColor(color)")
.build();
}
private MethodSpec getSetImageDrawableMethodSpec(String childName, String childGetterName) {
ParameterSpec imageParam =
ParameterSpec.builder(ClassName.get("android.graphics.drawable", "Drawable"),
"drawable").build();
return MethodSpec.methodBuilder("set" + childName + "Image")
.addModifiers(PUBLIC)
.addParameter(imageParam)
.returns(VOID)
.addStatement("viewHolder." + childGetterName + ".setImageDrawable(drawable)")
.build();
}
}
