Clean up and refactor ACR and component register.

[lgpl/argeo-commons.git] / org.argeo.util / src / org / argeo / util / register / StaticRegister.java

diff --git a/org.argeo.util/src/org/argeo/util/register/StaticRegister.java b/org.argeo.util/src/org/argeo/util/register/StaticRegister.java
deleted file mode 100644 (file)
index 0dcba13..0000000
--- a/org.argeo.util/src/org/argeo/util/register/StaticRegister.java
+++ /dev/null
@@ -1,122 +0,0 @@
-package org.argeo.util.register;
-
-import java.util.HashSet;
-import java.util.IdentityHashMap;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.function.Predicate;
-
-/** A minimal component register. */
-public class StaticRegister implements ComponentRegister {
-       private final static StaticRegister instance = new StaticRegister();
-
-       public static ComponentRegister getInstance() {
-               return instance;
-       }
-
-       private final AtomicBoolean started = new AtomicBoolean(false);
-       private final IdentityHashMap<Object, Component<?>> components = new IdentityHashMap<>();
-
-       @Override
-       public void accept(Component<?> component) {
-               registerComponent(component);
-       }
-
-       @SuppressWarnings({ "unchecked" })
-       @Override
-       public synchronized <T> Component<? extends T> find(Class<T> clss, Predicate<Map<String, Object>> filter) {
-               Set<Component<? extends T>> result = new HashSet<>();
-               instances: for (Object instance : components.keySet()) {
-                       if (!clss.isAssignableFrom(instance.getClass()))
-                               continue instances;
-                       Component<? extends T> component = (Component<? extends T>) components.get(instance);
-
-                       // TODO filter
-                       if (component.isPublishedType(clss))
-                               result.add(component);
-               }
-               if (result.isEmpty())
-                       return null;
-               return result.iterator().next();
-
-       }
-
-       synchronized void registerComponent(Component<?> component) {
-               if (started.get()) // TODO make it really dynamic
-                       throw new IllegalStateException("Already activated");
-               if (components.containsKey(component.getInstance()))
-                       throw new IllegalArgumentException("Already registered as component");
-               components.put(component.getInstance(), component);
-       }
-
-       @Override
-       public synchronized Component<?> get(Object instance) {
-               if (!components.containsKey(instance))
-                       throw new IllegalArgumentException("Not registered as component");
-               return components.get(instance);
-       }
-
-       @Override
-       public synchronized void activate() {
-               if (started.get())
-                       throw new IllegalStateException("Already activated");
-               Set<CompletableFuture<?>> constraints = new HashSet<>();
-               for (Component<?> component : components.values()) {
-                       component.startActivating();
-                       constraints.add(component.getActivated());
-               }
-
-               // wait
-               try {
-                       CompletableFuture.allOf(constraints.toArray(new CompletableFuture[0])).thenRun(() -> started.set(true))
-                                       .get();
-               } catch (InterruptedException e) {
-                       throw new RuntimeException("Register activation has been interrupted", e);
-               } catch (ExecutionException e) {
-                       if (RuntimeException.class.isAssignableFrom(e.getCause().getClass())) {
-                               throw (RuntimeException) e.getCause();
-                       } else {
-                               throw new IllegalStateException("Cannot activate register", e.getCause());
-                       }
-               }
-       }
-
-       @Override
-       public synchronized void deactivate() {
-               if (!started.get())
-                       throw new IllegalStateException("Not activated");
-               Set<CompletableFuture<?>> constraints = new HashSet<>();
-               for (Component<?> component : components.values()) {
-                       component.startDeactivating();
-                       constraints.add(component.getDeactivated());
-               }
-
-               // wait
-               try {
-                       CompletableFuture.allOf(constraints.toArray(new CompletableFuture[0])).thenRun(() -> started.set(false))
-                                       .get();
-               } catch (InterruptedException e) {
-                       throw new RuntimeException("Register deactivation has been interrupted", e);
-               } catch (ExecutionException e) {
-                       if (RuntimeException.class.isAssignableFrom(e.getCause().getClass())) {
-                               throw (RuntimeException) e.getCause();
-                       } else {
-                               throw new IllegalStateException("Cannot deactivate register", e.getCause());
-                       }
-               }
-       }
-
-       @Override
-       public synchronized boolean isActive() {
-               return started.get();
-       }
-
-       @Override
-       public synchronized void clear() {
-               components.clear();
-       }
-
-}