Incorporated Checkstyle, findbugs, pmd and lint

build.gradle

@@ -15,6 +15,9 @@ buildscript {
 }
 
 apply plugin: 'com.android.application'
+apply plugin: 'checkstyle'
+apply plugin: 'pmd'
+apply plugin: 'findbugs'
 
 ext {
     supportLibraryVersion = '23.4.0'
@@ -41,12 +44,10 @@ dependencies {
     compile "com.android.support:cardview-v7:${supportLibraryVersion}"
     compile 'com.getbase:floatingactionbutton:1.10.1'
 
-
     /// dependencies for local unit tests
     testCompile 'junit:junit:4.12'
     testCompile 'org.mockito:mockito-core:1.10.19'
 
-
     /// dependencies for instrumented tests
     // JUnit4 Rules
     androidTestCompile 'com.android.support.test:rules:0.5'
@@ -73,6 +74,12 @@ tasks.withType(Test) {
 }
 
 android {
+    lintOptions {
+        abortOnError true
+        lintConfig file("${project.rootDir}/lint.xml")
+        htmlReport true
+        htmlOutput file("$project.buildDir/reports/lint/lint.html")
+    }
     compileSdkVersion 23
     buildToolsVersion "23.0.3"
 
@@ -100,14 +107,12 @@ android {
             assets.srcDirs = ['assets']
         }
 
-
         // move whole local unit tests structure as a whole from src/test/* to test/*
         test.setRoot('test')
 
         // move whole instrumented tests structure as a whole from src/androidTest/* to androidTest/*
         androidTest.setRoot('androidTest')
 
-
         // Move the build types to build-types/<type>
         // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
         // This moves them out of them default location under src/<type>/... which would
@@ -131,4 +136,55 @@ android {
         exclude 'META-INF/LICENSE.txt'
     }
 
+    task checkstyle(type: Checkstyle) {
+        configFile = file("${rootProject.projectDir}/checkstyle.xml")
+        configProperties.checkstyleSuppressionsPath = file("${project.rootDir}/config/quality/checkstyle/suppressions.xml").absolutePath
+        source 'src'
+        include '**/*.java'
+        exclude '**/gen/**'
+        classpath = files()
+    }
+
+    task pmd(type: Pmd) {
+        ruleSetFiles = files("${project.rootDir}/pmd-ruleset.xml")
+        ignoreFailures = false
+        ruleSets = []
+
+        source 'src'
+        include '**/*.java'
+        exclude '**/gen/**'
+
+        reports {
+            xml.enabled = false
+            html.enabled = true
+            xml {
+                destination "$project.buildDir/reports/pmd/pmd.xml"
+            }
+            html {
+                destination "$project.buildDir/reports/pmd/pmd.html"
+            }
+        }
+    }
+
+    task findbugs(type: FindBugs) {
+        ignoreFailures = false
+        effort = "max"
+        reportLevel = "high"
+        classes = files("$project.buildDir/intermediates/classes")
+        excludeFilter = new File("${project.rootDir}/findbugs-filter.xml")
+        source 'src'
+        include '**/*.java'
+        exclude '**/gen/**'
+
+        reports {
+            xml.enabled = false
+            html.enabled = true
+            html {
+                destination "$project.buildDir/reports/findbugs/findbugs.html"
+            }
+        }
+        classpath = files()
+    }
+    check.dependsOn 'checkstyle', 'findbugs', 'pmd', 'lint'
+
 }

checkstyle.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE module PUBLIC
+    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+</module>

findbugs-filter.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+
+<FindBugsFilter>
+    <Match>
+        <Class name="~.*\.Manifest\$.*"/>
+    </Match>
+</FindBugsFilter>

pmd-ruleset.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="Android"
+    xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
+    xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd"
+    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
+    <description>
+        The ruleset file checks code using rules defined below, new rules can always be added.The
+        pmd.html file contains the report which includes perceived coding issues
+    </description>
+    <exclude-pattern>.*/R.java</exclude-pattern>
+    <exclude-pattern>.*/gen/.*</exclude-pattern>
+
+    <rule ref="rulesets/java/logging-java.xml" />
+    <rule ref="rulesets/java/braces.xml" />
+    <rule ref="rulesets/java/strings.xml" />
+    <rule ref="rulesets/java/basic.xml" />
+    <rule ref="rulesets/java/naming.xml">
+        <exclude name="AbstractNaming" />
+        <exclude name="LongVariable" />
+        <exclude name="ShortMethodName" />
+        <exclude name="ShortVariable" />
+        <exclude name="VariableNamingConventions" />
+    </rule>
+</ruleset>

suppressions.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<suppressions>
+
+</suppressions>