Discover the power of Drools 6 and Business Rules for developing complex scenarios in your applications About This Book Implement and model different rules using the DRL full syntax Model complex business decisions and domain models in order to automate and improve your operational decisions with the Drools framework A practical, fast-paced, hands-on guide to help you use the different components provided by the Drools Rule Engine Who This Book Is For This book is for Java developers and architects who need to have a deep understanding of how to create or integrate your applications with the Drools Rules Framework. The book assumes that you know the Java language well and also have experience with some widely used frameworks, such as Spring. You should also know the basics of Maven-based applications. What You Will Learn Automate your application’s decisions, such as promotion applying, discount policies, fraud detection, and more. Quickly get started with writing your first rules using the DRL full syntax. Discover the power of the new syntax components of the rule language. Define inferences in your business rules to simplify complex decisions. Write decision tables, templates,domain-specific languages, and scorecards, and learn how to map them to the Drools framework. Harness the full operational power of Drools through all of its configuration points. Use Drools configurations and architectures for different environments and scenarios. In Detail Mastering JBoss Drools 6 will provide you with the knowledge to develop applications involving complex scenarios. You will learn how to use KIE modules to create and execute Business Rules, and how the PHREAK algorithm internally works to drive the Rule Engine decisions. This book will also cover the relationship between Drools and jBPM, which allows you to enrich your applications by using Business Processes. You will be briefly introduced to the concept of complex event processing (Drools CEP) where you will learn how to aggregate and correlate your data based on temporal conditions. You will also learn how to define rules using domain-specific languages, such as spreadsheets, database entries, PMML, and more. Towards the end, this book will take you through the integration of Drools with the Spring and Camel frameworks for more complex applications. Style and approach Approached from a developer’s perspective, the book teaches you all the advanced concepts of Business Rules applicable examples with helpful screenshots, diagrams, tutorials, and examples.

Master the skills required to steer cross-platform applications from drawing board to app store(s) using Xamarin About This Book Develop your Xamarin development skills with this comprehensive guide on various patterns and features so you can create elegant and high-quality applications Create adaptive user interfaces on separate platforms without compromising the user experience and platform identity Implement application lifecycle management concepts to manage and finalize cross-platform projects and efficiently collaborate with others Who This Book Is For This book is ideal for those who want to take their entry–level Xamarin mobile development skills to the next level to become the go-to person within their organization. To fully understand the patterns and concepts described, you should possess a reasonable level of knowledge about the core elements of Xamarin and cross-platform application development with it. What You Will Learn Configure your environment for cross-platform projects with Xamarin Gain memory management skills to avoid memory leaks and premature code cycles while decreasing the memory print of your applications Employ asynchronous and parallel patterns to execute non-interactive and non-blocking processes Create and use SQLite databases for offline scenarios Integrate network resources with cross-platform applications Design and implement eye-catching and reusable UI components without compromising nativity in mobile applications Manage the application lifecycle of cross-platform development projects Distribute Xamarin applications through public or private channels In Detail The main goal of this book is to equip you with the required know-how to successfully analyze, develop, and manage Xamarin cross-platform projects using the most efficient, robust, and scalable implementation patterns. This book starts with general topics such as memory management, asynchronous programming, local storage, and networking, and later moves onto platform-specific features. During this transition, you will learn about key tools to leverage the patterns described, as well as advanced implementation strategies and features. The book also presents User Interface design and implementation concepts on Android and iOS platforms from a Xamarin and cross-platform perspective, with the goal to create a consistent but native UI experience. Finally, we show you the toolset for application lifecycle management to help you prepare the development pipeline to manage and see cross-platform projects through to public or private release. Style and approach This is a comprehensive guide on various Xamarin features and patterns. Each topic is explained and demonstrated with code samples, which are revised in each section in an iterative manner and analyzed with available diagnostic tools to demonstrate the benefits of different patterns.

Analyze data network like a professional by mastering Wireshark - From 0 to 1337 About This Book Master Wireshark and train it as your network sniffer Impress your peers and get yourself pronounced as a network doctor Understand Wireshark and its numerous features with the aid of this fast-paced book packed with numerous screenshots, and become a pro at resolving network anomalies Who This Book Is For Are you curious to know what’s going on in a networkDo you get frustrated when you are unable to detect the cause of problems in your networksThis is where the book comes into play. Mastering Wireshark is for developers or network enthusiasts who are interested in understanding the internal workings of networks and have prior knowledge of using Wireshark, but are not aware about all of its functionalities. What You Will Learn Install Wireshark and understand its GUI and all the functionalities of it Create and use different filters Analyze different layers of network protocols and know the amount of packets that flow through the network Decrypt encrypted wireless traffic Use Wireshark as a diagnostic tool and also for network security analysis to keep track of malware Troubleshoot all the network anomalies with help of Wireshark Resolve latencies and bottleneck issues in the network In Detail Wireshark is a popular and powerful tool used to analyze the amount of bits and bytes that are flowing through a network. Wireshark deals with the second to seventh layer of network protocols, and the analysis made is presented in a human readable form. Mastering Wireshark will help you raise your knowledge to an expert level. At the start of the book, you will be taught how to install Wireshark, and will be introduced to its interface so you understand all its functionalities. Moving forward, you will discover different ways to create and use capture and display filters. Halfway through the book, you’ll be mastering the features of Wireshark, analyzing different layers of the network protocol, looking for any anomalies. As you reach to the end of the book, you will be taught how to use Wireshark for network security analysis and configure it for troubleshooting purposes. Style and approach Every chapter in this book is explained to you in an easy way accompanied by real-life examples and screenshots of the interface, making it easy for you to become an expert at using Wireshark.

Build your own cloud based Database as a Service using OpenStack Trove About This Book Familiarize yourself with the concept of Database as a Service and make your existing system scalable and efficient with OpenStack Trove Minimize the administrative tasks and complexities of managing your cloud infrastructure This is a fast-paced guide to datastore management on the OpenStack platform using OpenStack Trove Who This Book Is For If you are a DBA / system administrator / architect, or a student who wants to build a Database as a Service based on OpenStack, this book is for you. You should have a basic knowledge of OpenStack components, RDBMS/NoSQL, IaaS, and cloud computing. What You Will Learn Get to grips with the basics of OpenStack and the prerequisites to install Trove Understand the expectations of DBaaS and how Trove can help you achieve them Set up a basic installation of DevStack (Development Stack) in a virtual box Install Trove and utilize its configuration groups to manage and tune databases Use Image builder to create guest images for Trove Utilize Trove to provision your first database instance Back up and restore your databases with the help of Trove In Detail OpenStack has become an extremely popular solution to build public and private clouds with. Database as a Service (DBaaS) enables the delivery of more agile database services at lower costs. Some other benefits of DBaaS are secure database deployments and compliance to standards and best practices. Trove is a DBaaS built on OpenStack and is becoming more popular by the day. Since Trove is one of the most recent projects of OpenStack, DBAs and system administrators can find it difficult to set up and run a DBaaS using OpenStack Trove. This book helps DBAs make that step. We start by introducing you to the concepts of DBaaS and how is it implemented using OpenStack Trove. Following this, we look at implementing OpenStack and deploying Trove. Moving on, you will learn to create guest images to be used with Trove. We then look at how to provision databases in self-service mode, and how to perform administration tasks such as backup and recovery, and fine-tuning databases. At the end of the book, we will examine some advanced features of Trove such as replication. Style and approach This fast-paced, step-by-step guide introduces you to DBaaS, OpenStack Trove, and its components, leading you through building your own Cloud-based DBaaS. Using the DevStack deployment method, you will spend less time on installing OpenStack so you can devote more time to learning how to provision and manage databases in a DBaaS environment.

Unleash the full potential of the Flask web framework by creating simple yet powerful web applications About This Book The most up-to-date book on Flask on the market Create your own world-class applications and master the art of Flask by unravelling its enigma through this journey This step-by-step tutorial is packed with examples on blending different technologies with Flask to get you up and running Who This Book Is For Have you looked at PHP and hated the clunky bloated syntaxOr looked at .Net and wished it was more open and flexibleMaybe you’ve tried your hand at GUI libraries in Python and found them hard to useIf your answer to any one of these questions is a yes, then this is just the book for you. It is also intended for people who know the basics of Python and want to learn how to use it to build powerful solutions with a web front-end. What You Will Learn Build three web applications from the ground up using the powerful Python micro framework, Flask. Dynamically display data to your viewers, based on their requests Store user and static data in SQL and NoSQL databases and use this data to power your web applications Create a good user experience by combining HTML, CSS, and JavaScript Harness the convenience of freely available APIs, including OpenWeatherMap, Open Exchange Rates, and bitly Extend your applications to build advanced functionality, such as a user account control system using Flask-Login Learn about web application security and defend against common attacks, such as SQL injection and XSS In Detail This book will take you on a journey from learning about web development using Flask to building fully functional web applications. In the first major project, we develop a dynamic Headlines application that displays the latest news headlines along with up-to-date currency and weather information. In project two, we build a Crime Map application that is backed by a MySQL database, allowing users to submit information on and the location of crimes in order to plot danger zones and other crime trends within an area. In the final project, we combine Flask with more modern technologies, such as Twitter's Bootstrap and the NoSQL database MongoDB, to create a Waiter Caller application that allows restaurant patrons to easily call a waiter to their table. This pragmatic tutorial will keep you engaged as you learn the crux of Flask by working on challenging real-world applications. Style and approach This book will provide you with rich, practical experience of Flask. Every technology, that is employed along with Flask is comprehensively introduced, while the book focusses on developing web applications. Pointers to educational material are always given if you want to gain in-depth knowledge of the various technologies used.

“一鼓作氣”出自《左傳》。

In this Mean Girls meets The Perks of Being a Wallflower tale, narrator Anika Dragomir is the third most popular girl at Pound High School. But inside, she knows she's a freak; she can't stop thinking about former loner Logan McDonough, who showed up on the first day of tenth grade hotter, bolder, and more mysterious than ever. Logan is fascinating, troubled and off-limits. The Pound High queen bee will make Anika's life hell if she's seen with him. So Anika must choose ignore her feelings and keep her social statusOr follow her heart and risk becoming a pariah. Which will she pickAnd what will she think of her choice when an unimaginable tragedy strikes, changing her foreverAn absolutely original new voice in YA in a story that will start important conversations and tear at your heart.

Narrowly surviving assassination and capture, Octavia Leander, a powerful magical healer, is on the run with handsome Alonzo Garrett, the Clockwork Dagger who forfeited his career with the Queens secret society of spies and killers and possibly his life to save her. Now, they are on a dangerous quest to fnd safety and answers: Why is Octavia so powerfulWhy does she seem to be undergoing a transformation unlike any witnessed for hundreds of years?The truth may rest with the source of her mysterious healing power the Lady's Tree. But the tree lies somewhere in an inhospitable territory known as the Waste. Eons ago, this land was made barren by an evil spell, until a few hardy souls dared to return over the last century. For years, the Waste has waged a bloody battle against the royal court to win its independence and they need Octavia's powers to succeed.Joined by unlikely allies, including a menagerie of gremlin companions, she must evade killers on a dangerous journey through a world on the brink of deadly civil war.

Nixy Bauer, Home in an Hour Nixy Bauer is used to her classmates being very, very unhappy to see her. After all, she's working with the enemy she's on their parents payrolls.Nixy is a bounty hunter in a virtual-reality gaming world. Kids in the MEEP, as they call it, play entirely with their minds, while their bodies languish in a sleeplike state on the couch. Irritated parents, looking to wrench their kids back to reality, hire Nixy to jump into the game and retrieve them. Luckily for Nixy and her wallet, she's the best leveller out there.But when the game's billionaire developer and Nixy's parents boss loses track of his own son in the MEEP, Nixy is in for the biggest challenge of her bounty-hunting career. Wyn Salvador isn't some lazy kid looking to escape his homework, and this is no ordinary levelling job: Wyn does not want to be found. And he's left behind a suicide note.Nixy takes the job but quickly discovers that Wyns not hiding he's being held inside the game against his will. But who is holding him captive, and why?Nixy and Wyn attempt to fight their way out of a mind game unlike any they've encountered. And the battle brings them closer than either could have imagined. But when the whole world is virtual, how can Nixy possibly know what's real?

Carey Baldwin, author of the thrilling novel Confession, returns with a new story featuring two of her most beloved characters. Fans of Tess Gerritsen and Lisa Gardner will devour this riveting story of rivals caught in a killer's twisted web.When a coed falls prey to a sadistic murderer, forensic psychiatrist Dr. Caitlin "Caity" Cassidy and Special Agent Atticus Spenser are called in to testify—one for the defense, one for the prosecution. With warring approaches to justice, these two rivals have been butting heads for years—both inside the courtroom and out. And at first, this case appears to be no different.But when a brutal attack leaves the accused man dead and Caity in critical condition, petty differences take a backseat to saving lives. As the lone survivor, Caity knows too much, and the killer—a madman calling himself the Man in the Maze—is coming back for round two. Now Caity and Spense must join forces to uncover the killer's identity before Caity's time—and luck—runs out.

Winner of the Pulitzer Prize and widely considered to be Edna Ferber's greatest achievement, So Big is a classic novel of turn-of-the-century Chicago. It is the unforgettable story of Selina Peake DeJong, a gambler's daughter, and her struggles to stay afloat and maintain her dignity and her sanity in the face of marriage, widowhood, and single parenthood. A brilliant literary masterwork from one of the twentieth century's most accomplished and admired writers, the remarkable So Big still resonates with its unflinching view of poverty, sexism, and the drive for success.

Before America Singer met Prince Maxon . . .Before she entered the Selection . . .She was in love with a boy named Aspen Leger.Don't miss this digital original novella set in the captivating world of Kiera Cass's #1 New York Times bestselling Selection series. This brand new 64-page story begins just after the group of Selected girls is narrowed down to the Elite and is told from Aspen's point of view. The Guard also features a teaser to The One, the thrilling third novel in the Selection series.Epic Reads Impulse is a digital imprint with new releases each month.

An epic fantasy filled with adventure, intrigue, and romance from Incarnate series author Jodi Meadows. This duology is perfect for fans of Graceling by Kristin Cashore, The Girl of Fire and Thorns by Rae Carson, and Shadow and Bone by Leigh Bardugo.When Princess Wilhelmina was a child, the Indigo Kingdom invaded her homeland. Ten years later, Wil and the other noble children who escaped are ready to fight back and reclaim Wil’s throne. To do so, Wil and her best friend, Melanie, infiltrate the Indigo Kingdom palace with hopes of gathering information that will help them succeed.But Wil has a secret—one that could change everything. Although magic has been illegal for a century, she knows her ability could help her save her kingdom. But magic creates wraith, and the deadly stuff is moving closer and destroying the land. And if the vigilante Black Knife catches her using magic, she may disappear like all the others. . . .

Being one half of a BFF heart necklace is serious business—and in the Picture Perfect series, each story tackles a tough friendship challenge. Through the ups and downs of life in middle school, through braces and boy bands, family feuds and fashion disasters, your best bud is there. But what happens when friendship suddenly gets complicatedTween readers will adore these sweet, accessible stories about the power of friendship.Alice Kinney shouldn't be nervous about starting middle school. She's got her best friend, Cassidy, by her side, so it can't be that bad, rightExcept, Cass isn't at her side. For the first time since kindergarten, Alice and Cassidy aren't in any of the same classes, and Alice is stuck with a brand-new crew in honors class! The girls try to stay in touch from across the hallway with the help of a shared notebook—but when Alice accidentally befriends not-so-nice Nikki from Cassidy's dance class, she keeps it to herself. Cass will never understand.Alice juggles both friendships, waiting for the right moment to tell everyone the truth. But then, disaster strikes: Cass's play and Nikki's math competition are fall on the same night. Neither girl will ever forgive Alice if she misses their big day. What is Alice supposed to do when her two best friends are total enemies?

From New York Times bestselling author Cynthia Hand comes a gorgeous, heart-wrenching novel of love and loss, which ALA Booklist called "both shatteringly painful and bright with life and hope" in a starred review.Since her brother, Tyler, committed suicide, Lex has been trying to keep her grief locked away, and to forget about what happened that night. But as she starts putting her life, her family, and her friendships back together, Lex is haunted by a secret she hasn't told anyone—a text Tyler sent, that could have changed everything.In the tradition of Jay Asher's Thirteen Reasons Why, Gayle Forman's If I Stay, and Lauren Oliver's Before I Fall, The Last Time We Say Goodbye is a thoughtful and deeply affecting novel that will change the way you look at life and death.

In this intricate novel of psychological suspense, a chilling discovery near the high school ignites a witch hunt in a southeast texas refinery town, unearthing communal and family secrets that threaten the lives of the town's girls.In Port Sabine, the air is thick with oil, superstition reigns, and dreams hang on making a winning play. All eyes are on Mercy Louis, the star of the championship girls' basketball team. Mercy seems destined for greatness, but the road out of town is riddled with obstacles. There is her grandmother Evelia, a strict evangelical who has visions of an imminent Rapture and sees herself as the keeper of Mercy's virtue. And then there are the cryptic letters from Charmaine, the mother who abandoned Mercy at birth.At the periphery of Mercy's world floats team manager Illa Stark, a lonely wallflower. Like the rest of the town, Illa is spellbound by Mercy's beauty and talent, but a note discovered in a gym locker reveals that Mercy's life may not be as perfect as it appears.The last day of school brings the disturbing find, and as summer unfolds and the police investigate, every girl becomes a suspect. At the opening game of the season, Mercy collapses—and Evelia prophesies that she is only the first to fall. Soon other girls are afflicted by the same mysterious condition, sending the town into a tailspin and bringing Illa and Mercy together in an unexpected way.Evocative and unsettling, The Unraveling of Mercy Louis charts the downfall of one town's golden girl while exploring the brutality and anxieties of girlhood in America.

When a group of friends reunite in the idyllic beach town where they grew up, they must reevaluate their loyalty to one another or lose their friendship foreverTwelve years ago, Vanessa "Van" Moran fell in love and lost her virginity—but not to the same boy. She fled Whisper Beach desperate and pregnant, never telling a soul about her secret. Now a professional Manhattan organizer, she must return home for the first time to attend the funeral of her best friend's husband. Van intends to only stay for a weekend, but her plans fall by the wayside as the troubles of this coastal town draw her in.Dorie, the owner of the pier's infamous Blue Crab Restaurant where Van and her friends worked as teenagers, enlists Van's help to save the nearly bankrupt eatery. While Van throws herself into this new task, the man she once loved reenters her life, willing to pick up where they left off.As the restaurant begins to thrive and Van reconnects with old friends, trouble comes from an unexpected source and she realizes she must face the decisions of her past or sacrifice this new life she has so carefully built.For Van, this summer will test the meaning of friendship and trust—and how far love can bend before it breaks.

The fourth fun installment in the Debutante Dropout series finds ex-debutante Andy Kendricks following a cold lead into a hot Dallas strip club.Renegade rich girl Andy Kendricks isn't the belle of any Dallas ball—and that's just the way the debutante dropout likes it! She's got a good life and a great man: her defense attorney boyfriend, Brian Malone. Brian's such a straight arrow that he had to be dragged kicking and screaming to a close friend's bachelor party at a sleazy local "gentlemen's club."So why is the groom-to-be saying that Brian left the bacchanal arm-in-arm with the hottest body in the Lone Star StateAnd what was that hot body doing stone-cold dead in the trunk of Brian's carAnd where is Brian, anywayThe cops are looking for Andy's allegedly unfaithful/possibly homicidal beau, who hasn't been seen since the party. But Andy can't believe her upstanding lover is a murdering fool, and she's determined to prove it—though she may end up with a lot more broken than just her heart.

Andy Kendricks is back in the third sassy and irresistible installment in Susan McBride's Debutante Dropout series … and this time she's teaming up with her high-society mama to catch a killer who's targeting rich, lonely widows. Wealthy Texas widows need loving too … which is why Bebe Kent joined a dating service for "discriminating" seniors soon after relocating to the swanky Belle Meade retirement community. Unfortunately, Bebe didn't even live long enough to meet "Mr. Right." And though doctors declared her death totally natural, extravagant blue-blooded Dallas socialite Cissy Blevins Kendricks believes her old friend's demise was hastened—and she's ready to check herself into Belle Meade incognito to prove it. Cissy's rebellious, sometimes-sleuthing daughter, Andrea, wants no part of her mother's crazy schemes—yet she's anything but pleased that Cissy is going off on her own, playing a highbrow Miss Marple. So she has no choice but to join her mom in search of the truth—especially when more well-heeled widows start turning up dead …

Love Miss MarpleAdore Holmes and WatsonProfessor Morley's guide to Norfolk is a story of bygone England: quaint villages, eccentric locals—and murder …It is 1937, and disillusioned Spanish Civil War veteran Stephen Sefton is broke. So when he sees a mysterious advertisement for a job where "intelligence is essential," he eagerly applies.Thus begins Sefton's association with Professor Swanton Morley, an omnivorous intellect. Morley's latest project is a history of traditional England, with a guide to every county.They start in Norfolk, but when the vicar of Blakeney is found hanging from his church's bell rope, Morley and Sefton find themselves drawn into a rather more fiendish plot. Did the reverend really take his own life, or is there something darker afoot?A must-read for fans of Sir Arthur Conan Doyle, Agatha Christie, and Charles Todd, this novel includes plenty of murder, mystery, and mayhem to confound.

Ferals is the first book in a dark, action-packed trilogy that’s part The Graveyard Book, part Batman, and all high-octane adventure.Blackstone was once a thriving metropolis. But that was before the Dark Summer—a wave of violence and crime that swept through the city eight years ago, orchestrated by the fearsome Spinning Man. Now the Spinning Man is on the move again, and a boy named Caw is about to be caught in his web.Caw has never questioned his ability to communicate with crows. But as the threat of a new Dark Summer looms, Caw discovers the underground world of Blackstone’s ferals—those with the power to control animals. Caw is one of them. And to save his city, he must quickly master abilities he never knew he had . . . and prepare to defeat a darkness he never could have imagined.