Android support in gradle plugin (fix issue 266)

Previously the `java` plugin was automatically applied when
configuring the task dependencies. This was not compatible with
the `android` plugin. Now this plugin will inspect the build
to determine the right configuration to target.

Added the example provided by @samskiter that demonstrated the
bug and now shows a working sample.

jsonschema2pojo-gradle-plugin/example/android/.gitignore

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+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build

jsonschema2pojo-gradle-plugin/example/android/README.md

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+The Android SDK is required to build this project. After installing the Android
+Studio, add a `local.properties` file with the path to the SDK. For example,
+`sdk.dir=/Users/<user>/Library/Android/sdk/`

jsonschema2pojo-gradle-plugin/example/android/app/.gitignore

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+/build

jsonschema2pojo-gradle-plugin/example/android/app/build.gradle

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+apply plugin: 'com.android.application'
+apply plugin: 'jsonschema2pojo'
+
+buildscript {
+    repositories {
+        jcenter()
+        mavenLocal()
+    }
+    dependencies {
+        classpath 'org.jsonschema2pojo:jsonschema2pojo-gradle-plugin:latest.integration'
+    }
+}
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.1.2"
+
+    defaultConfig {
+        applicationId "jsonschema2pojo.joelittlejohn.github.com.androidexample"
+        minSdkVersion 17
+        targetSdkVersion 21
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile 'com.android.support:appcompat-v7:21.0.3'
+
+}
+
+// Each configuration is set to the default value
+jsonSchema2Pojo {
+    // Whether to generate builder-style methods of the form withXxx(value) (that return this),
+    // alongside the standard, void-return setters.
+    generateBuilders = false
+
+    // Whether to use primitives (long, double, boolean) instead of wrapper types where possible
+    // when generating bean properties (has the side-effect of making those properties non-null).
+    usePrimitives = false
+
+    // Location of the JSON Schema file(s). This may refer to a single file or a directory of files.
+    //source = files("${sourceSets.main.output.resourcesDir}/json")
+    source = files("${project.rootDir}/schema")
+
+    // Target directory for generated Java source files. The plugin will add this directory to the
+    // java source set so the compiler will find and compile the newly generated source files.
+    targetDirectory = file("${project.rootDir}/build/generated-sources/js2p")
+
+    // Package name used for generated Java classes (for types where a fully qualified name has not
+    // been supplied in the schema using the 'javaType' property).
+    targetPackage = 'com.oosocial.clarityn.rest.clarityn.model'
+
+    // The characters that should be considered as word delimiters when creating Java Bean property
+    // names from JSON property names. If blank or not set, JSON properties will be considered to
+    // contain a single word when creating Java Bean property names.
+    propertyWordDelimiters = [] as char[]
+
+    // Whether to use the java type long (or Long) instead of int (or Integer) when representing the
+    // JSON Schema type 'integer'.
+    useLongIntegers = false
+
+    // Whether to use the java type double (or Double) instead of float (or Float) when representing
+    // the JSON Schema type 'number'.
+    useDoubleNumbers = true
+
+    // Whether to include hashCode and equals methods in generated Java types.
+    includeHashcodeAndEquals = true
+
+    // Whether to include a toString method in generated Java types.
+    includeToString = true
+
+    // The style of annotations to use in the generated Java types. Supported values:
+    //  - jackson (alias of jackson2)
+    //  - jackson2 (apply annotations from the Jackson 2.x library)
+    //  - jackson1 (apply annotations from the Jackson 1.x library)
+    //  - gson (apply annotations from the Gson library)
+    //  - none (apply no annotations at all)
+    annotationStyle = 'gson'
+
+    // A fully qualified class name, referring to a custom annotator class that implements
+    // org.jsonschema2pojo.NoopAnnotator and will be used in addition to the one chosen
+    // by annotationStyle. If you want to use the custom annotator alone, set annotationStyle to none.
+    customAnnotator = 'org.jsonschema2pojo.NoopAnnotator'
+
+    // Whether to include JSR-303/349 annotations (for schema rules like minimum, maximum, etc) in
+    // generated Java types. Schema rules and the annotation they produce:
+    //  - maximum = @DecimalMax
+    //  - minimum = @DecimalMin
+    //  - minItems,maxItems = @Size
+    //  - minLength,maxLength = @Size
+    //  - pattern = @Pattern
+    //  - required = @NotNull
+    // Any Java fields which are an object or array of objects will be annotated with @Valid to
+    // support validation of an entire document tree.
+    includeJsr303Annotations = true
+
+    // The type of input documents that will be read. Supported values:
+    //  - jsonschema (schema documents, containing formal rules that describe the structure of json data)
+    //  - json (documents that represent an example of the kind of json data that the generated Java types
+    //          will be mapped to)
+    sourceType = 'jsonschema'
+
+    // Whether to empty the target directory before generation occurs, to clear out all source files
+    // that have been generated previously. <strong>Be warned</strong>, when activated this option
+    // will cause jsonschema2pojo to <strong>indiscriminately delete the entire contents of the target
+    // directory (all files and folders)</strong> before it begins generating sources.
+    boolean removeOldOutput = true
+
+    // The character encoding that should be used when writing the generated Java source files
+    String outputEncoding = 'UTF-8'
+
+    // Whether to use {@link org.joda.time.DateTime} instead of {@link java.util.Date} when adding
+    // date type fields to generated Java types.
+    boolean useJodaDates = false
+
+    // Whether to use commons-lang 3.x imports instead of commons-lang 2.x imports when adding equals,
+    // hashCode and toString methods.
+    boolean useCommonsLang3 = false
+
+    // Whether to initialize Set and List fields as empty collections, or leave them as null.
+    boolean initializeCollections = true
+}

jsonschema2pojo-gradle-plugin/example/android/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/sduke/Android-SDK/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

jsonschema2pojo-gradle-plugin/example/android/app/src/androidTest/java/jsonschema2pojo/joelittlejohn/github/com/androidexample/ApplicationTest.java

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+package jsonschema2pojo.joelittlejohn.github.com.androidexample;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application>
+{
+    public ApplicationTest()
+    {
+        super(Application.class);
+    }
+}

jsonschema2pojo-gradle-plugin/example/android/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="jsonschema2pojo.joelittlejohn.github.com.androidexample" >
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

jsonschema2pojo-gradle-plugin/example/android/app/src/main/java/jsonschema2pojo/joelittlejohn/github/com/androidexample/MainActivity.java

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+package jsonschema2pojo.joelittlejohn.github.com.androidexample;
+
+import android.support.v7.app.ActionBarActivity;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+
+
+public class MainActivity extends ActionBarActivity
+{
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu)
+    {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        getMenuInflater().inflate(R.menu.menu_main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item)
+    {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        int id = item.getItemId();
+
+        //noinspection SimplifiableIfStatement
+        if (id == R.id.action_settings)
+        {
+            return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+}

jsonschema2pojo-gradle-plugin/example/android/app/src/main/res/layout/activity_main.xml

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+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:paddingLeft="@dimen/activity_horizontal_margin"
+                android:paddingRight="@dimen/activity_horizontal_margin"
+                android:paddingTop="@dimen/activity_vertical_margin"
+                android:paddingBottom="@dimen/activity_vertical_margin"
+                tools:context=".MainActivity">
+
+    <TextView
+        android:text="@string/hello_world"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"/>
+
+</RelativeLayout>

jsonschema2pojo-gradle-plugin/example/android/app/src/main/res/menu/menu_main.xml

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+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto"
+      xmlns:tools="http://schemas.android.com/tools"
+      tools:context=".MainActivity">
+    <item android:id="@+id/action_settings"
+          android:title="@string/action_settings"
+          android:orderInCategory="100"
+          app:showAsAction="never"/>
+</menu>

jsonschema2pojo-gradle-plugin/example/android/app/src/main/res/values-w820dp/dimens.xml

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+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

jsonschema2pojo-gradle-plugin/example/android/app/src/main/res/values/dimens.xml

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+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

jsonschema2pojo-gradle-plugin/example/android/app/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">AndroidExample</string>
+
+    <string name="hello_world">Hello world!</string>
+    <string name="action_settings">Settings</string>
+</resources>

jsonschema2pojo-gradle-plugin/example/android/app/src/main/res/values/styles.xml

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+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+
+</resources>

jsonschema2pojo-gradle-plugin/example/android/build.gradle

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+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.1.0'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}

jsonschema2pojo-gradle-plugin/example/android/gradle.properties

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+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

jsonschema2pojo-gradle-plugin/example/android/gradle/wrapper/gradle-wrapper.properties

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+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip