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DDevelopment & Design

Spring Security by example: securing methods

This is a part of a simple Spring Security tutorial:

1. Set up and form authentication
2. User in the backend (getting logged user, authentication, testing)
3. Securing web resources
4. Securing methods
5. OpenID (login via gmail)
6. OAuth2 (login via Facebook)
7. Writing on Facebook wall with Spring Social

Securing web resources is all nice and cool, but in a well designed application it's more natural to secure methods (for example on backend facade or even domain objects). While we may get away with role-based authorization in many intranet business applications, nobody will ever handle assigning roles to users in a public, free to use Internet service. We need authorization based on rules described in our domain.

For example: there is a service AlterStory, that allows cooperative writing of stories, where one user is a director (like a movie director), deciding which chapter proposed by other authors should make it to the final story.

The method for accepting chapters, looks like this:

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DDevelopment & Design

Hibernate hbm2ddl won’t create schema before creating tables

Situation I have a local H2 in memory database for integration tests and an Oracle db for production. I do not control the Oracle DB model. The in memory H2 database is created automatically by adding <prop key="hibernate.hbm2ddl.auto">update&l...Situation I have a local H2 in memory database for integration tests and an Oracle db for production. I do not control the Oracle DB model. The in memory H2 database is created automatically by adding <prop key="hibernate.hbm2ddl.auto">update&l...
DDevelopment & Design

Turing completeness II

Well, as I wrote in the previous post, sed is a Turing complete language. We can use it to implement some simple algorithms, or even a dc interpreter. But what does it really mean? How complex tasks may we achieve using plain sed?What about writin...Well, as I wrote in the previous post, sed is a Turing complete language. We can use it to implement some simple algorithms, or even a dc interpreter. But what does it really mean? How complex tasks may we achieve using plain sed?What about writin...