iceqiw/gadtry

Gadtry

Welcome to gadtry !

Gadtry A collection of java tool libraries. Contains: ioc. aop. mock. exec. graph ...

Use

• maven

<dependency>
    <groupId>com.github.harbby</groupId>
    <artifactId>gadtry</artifactId>
    <version>1.9.9</version>
</dependency>

Ioc

Create Factory:

IocFactory iocFactory = IocFactory.create(binder -> {
    binder.bind(Set.class).by(HashSet.class).withSingle();
    binder.bind(HashSet.class).withSingle();
    binder.bind(List.class).byCreator(ArrayList::new);  //No Single object
    binder.bind(Map.class).byCreator(HashMap::new).withSingle();  //Single object
    binder.bind(TestInject.class).noScope();
});

Set a1 = iocFactory.getInstance(Set.class);
Set a2 = iocFactory.getInstance(Set.class);
Assert.assertEquals(true, a1 == a2); // Single object

Class Inject

public class TestInject
{
    @Autowired
    private TestInject test;

    @Autowired
    public TestInject(HashMap set){
        System.out.println(set);
    }
}

Aop

support concentric ring model

List<String> actions = new ArrayList<>();
Set set = AopGo.proxy(Set.class)
        .byInstance(new HashSet<>())
        .aop(binder -> {
            binder.doBefore(before -> {
                actions.add("before1");
            }).when().size();
            binder.doAround(cut -> {
                actions.add("before2");
                int value = (int) cut.proceed() + 1;
                actions.add("before3");
                return value;
            }).whereMethod(method -> method.getName().startsWith("size"));
            binder.doBefore(before -> {
                actions.add("before4");
            }).when().size();
        })
        .build();
Assert.assertEquals(set.size(), 1);
Assert.assertEquals(MutableList.of("before1", "before2", "before4", "before3"), actions);

can also be combined with ioc container

IocFactory iocFactory = GadTry.create(binder -> {
    binder.bind(Map.class).byCreator(HashMap::new).withSingle();
    binder.bind(HashSet.class).by(HashSet.class).withSingle();
}).aop(binder -> {
    binder.bind(HashSet.class).aop(binder1 -> {
        binder1.doAfter(methodInfo -> {
            System.out.println("after2");
        }).whereMethod(methodInfo -> methodInfo.getName().startsWith("add"));
        binder1.doBefore((info) -> {
            Assert.assertEquals("add", info.getName());
            System.out.println("before1");
        }).methodName("add");
    });
}).setConfigurationProperties(MutableMap.of())
        .initialize();

Set set = iocFactory.getInstance(HashSet.class);

Multiprocessing Exec Fork New Jvm

Throw the task to the child process,

JVMLauncher<Integer> launcher = JVMLaunchers.<Integer>newJvm()
    .setCallable(() -> {
        // this is child process
        System.out.println("************ runing your task ***************");
        return 1;
    })
    .setName("set this jvm jps name")   //set fork jvm jps name
    .setEnvironment("TestEnv", envValue)  //set Fork Jvm Env
    .addUserjars(Collections.emptyList())
    .setXms("16m")
    .setXmx("16m")
    .setConsole((msg) -> System.out.println(msg))
    .build();

Integer out = launcher.startAndGet();
Assert.assertEquals(out.intValue(), 1);

Graph

• Create ImmutableGraph

Graph graph = ImmutableGraph.builder()
                .addNode("Throwable")
                .addNode("Exception")
                .addNode("IOException")
                .addNode("FileNotFoundException")

                .addNode("RuntimeException")
                .addNode("UnsupportedOperationException")
                .addNode("IllegalArgumentException")

                .addNode("Error")
                .addNode("OutOfMemoryError")
                .addNode("NoClassDefFoundError")

                .addEdge("Throwable", "Exception")
                .addEdge("Throwable", "Error")

                .addEdge("Exception", "IOException")
                .addEdge("Exception", "FileNotFoundException")
                .addEdge("Exception", "RuntimeException")
                .addEdge("RuntimeException", "UnsupportedOperationException")
                .addEdge("RuntimeException", "IllegalArgumentException")

                .addEdge("Error", "OutOfMemoryError")
                .addEdge("Error", "NoClassDefFoundError")
                .create();

• Print Graph:

graph.printShow("Throwable").forEach(System.out::println);

/
└────Throwable
     ├────Error
     │    ├────NoClassDefFoundError
     │    └────OutOfMemoryError
     └────Exception
          ├────RuntimeException
          │    ├────IllegalArgumentException
          │    └────UnsupportedOperationException
          ├────FileNotFoundException
          └────IOException

• Search Graph:
  Demo: Search for routes with A to C distances less than 30:

        Graph<Void,EdgeData> graph = ...create...
        List<Route<Void, EdgeData>> routes = graph.searchRuleRoute("A", "C", route -> {
            long distances = getRouteDistance(route);
            return distances < 30;
        });

Useful mailing lists

• yezhixinghai@gmail.com - For discussions about code, design and features