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An important characteristic of wires is that their details are hidden from the client implementation In our example, LoanComponent does not have knowledge of the wire communication protocol or the address of CreditService This approach will be familiar to Spring developers SCA is based on Inversion of Control (IoC), also known as dependency injection, popularized by the Spring framework Instead of requiring a component to nd its dependent services through a service locator API and invoke them using transportspeci c APIs, the runtime provides service references when an instance is created In this case, CreditService is injected as a constructor parameter when LoanComponent is instantiated There are a number of advantages to IoC Because the endpoint address of CreditService is not present in application code, it is possible for a system administrator or runtime to make the decision at deployment whether to co-locate the components (possibly for performance reasons) or host them in separate processes Further, it is possible to rewire LoanComponent to another implementation of CreditService without having to change the LoanComponent code itself And, because the client does not make use of any protocolspeci c APIs, the actual selection of a communication protocol can be deferred until deployment or changed at a later time Injection Styles In the current version of LoanComponent, we elected to de ne the reference to CreditService as a constructor parameter This is commonly referred to as constructor-based injection Some developers prefer to inject dependencies through setter methods or

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Building secure systems takes effort, especially for organizations that aren t used to paying much attention to security Code review should be part of the software security process When used as part of code review, static analysis tools can help codify best practices, catch common mistakes, and generally make the security process more ef cient and consistent But to achieve these bene ts, an organization must have a well-de ned code review process At a high level, the process consists of four steps: de ning goals, running tools, reviewing the code, and making fixes One symptom of an ineffective process is a frequent descent into a debate about exploitability

:skip last comma Set this option to true to return a, b and c instead of a, b,

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As covered in 15, XML and Active Resource, the to_xml method on Array can be used to create an XML collection by iteratively calling to_xml on its members, and wrapping the entire thing in an enclosing element All of the array elements must respond to to_xml

To incorporate static analysis into the existing development process, an organization needs a tool adoption plan The plan should lay out who will run the tool, when they ll run it, and what will happen to the results Static analysis tools are process agnostic, but the path to tool adoption is not Take style and culture into account as you develop an adoption plan By tracking and measuring the security activities adopted in the development process, an organization can begin to sharpen its software security focus The data produced by source code analysis tools can be useful for this purpose, giving insight into the kinds of problems present in the code, whether code review is taking place, and whether the results of the review are being acted upon in a timely fashion

The following example yields the Builder object to an optional block so that arbitrary markup can be inserted at the bottom of the generated XML, as the last child of the enclosing element

outputs the following XML:

agent optimization, or WebLogic Server s last logging resource optimization) that circumvent part of the 2PC process Given the capability of modern transaction managers to perform these optimizations, managed global transactions are generally the best choice In cases where an optimization cannot be performed and where atomicity is not a strict requirement, local managed transactions may result in performance improvements However, as with all performance tuning, it is best to quantify performance requirements upfront and tune based on actual measurements

his chapter is about what makes static analysis tools tick We look at the internal workings of advanced static analysis tools, including data structures, analysis techniques, rules, and approaches to reporting results Our aim is to explain enough about what goes into a static analysis tool that you can derive maximum bene t from the tools you use For readers interested in creating their own tools, we hope to lay enough groundwork to provide a reasonable starting point Regardless of the analysis techniques used, all static analysis tools that target security function in roughly the same way, as shown in Figure 41 They all accept code, build a model that represents the program, analyze that model in combination with a body of security knowledge, and nish by presenting their results back to the user This chapter walks through the process and takes a closer look at each step

The options for to_xml are:

true)

:indent Indent level to use for generated XML (defaults to two spaces) :root The tag name to use for the enclosing element If no :root is supplied and all

if ( fgets ( buf , sizeof(buf) stdin) == buf ) { strcpy ( othr , buf ); system ( othr );

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