diff options
Diffstat (limited to 'same/src/main/java/com')
5 files changed, 31 insertions, 28 deletions
diff --git a/same/src/main/java/com/orbekk/same/Client.java b/same/src/main/java/com/orbekk/same/Client.java index 5b361ec..b18f523 100644 --- a/same/src/main/java/com/orbekk/same/Client.java +++ b/same/src/main/java/com/orbekk/same/Client.java @@ -10,6 +10,7 @@ import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.orbekk.same.State.Component; +import com.orbekk.util.DelayedOperation; import com.orbekk.util.WorkQueue; public class Client implements DiscoveryListener { @@ -32,27 +33,28 @@ public class Client implements DiscoveryListener { return new State(state); } - public void set(String name, String data, long revision) - throws UpdateConflict { + // TODO: Do this asynchronously? Currently this is already achieved + // on Android, which makes the Java and Android versions different. + @Override + public DelayedOperation set(Component component) { + DelayedOperation op = new DelayedOperation(); String masterUrl = state.getDataOf(".masterUrl"); MasterService master = connections.getMaster(masterUrl); try { - boolean success = master.updateStateRequest(name, data, - revision); + boolean success = master.updateStateRequest( + component.getName(), component.getData(), + component.getRevision()); if (!success) { - throw new UpdateConflict("State update conflict when " + - "updating " + name); + op.complete(DelayedOperation.Status + .createConflict("Conflict from master")); } } catch (Exception e) { logger.error("Unable to contact master. Update fails.", e); - throw new UpdateConflict("Unable to contact master. Update fails."); + String e_ = throwableToString(e); + op.complete(DelayedOperation.Status.createError( + "Error contacting master. Update fails: " + e_)); } - } - - @Override - public void set(Component component) throws UpdateConflict { - set(component.getName(), component.getData(), - component.getRevision()); + return op; } @Override diff --git a/same/src/main/java/com/orbekk/same/ClientInterface.java b/same/src/main/java/com/orbekk/same/ClientInterface.java index c534fce..af8edfa 100644 --- a/same/src/main/java/com/orbekk/same/ClientInterface.java +++ b/same/src/main/java/com/orbekk/same/ClientInterface.java @@ -1,8 +1,10 @@ package com.orbekk.same; +import com.orbekk.util.DelayedOperation; + public interface ClientInterface { State getState(); - void set(State.Component component) throws UpdateConflict; + DelayedOperation set(State.Component component); void addStateListener(StateChangedListener listener); void removeStateListener(StateChangedListener listener); }
\ No newline at end of file diff --git a/same/src/main/java/com/orbekk/same/Variable.java b/same/src/main/java/com/orbekk/same/Variable.java index bea8664..4d42909 100644 --- a/same/src/main/java/com/orbekk/same/Variable.java +++ b/same/src/main/java/com/orbekk/same/Variable.java @@ -1,5 +1,7 @@ package com.orbekk.same; +import com.orbekk.util.DelayedOperation; + public interface Variable<T> { public interface OnChangeListener<T> { /** @@ -11,7 +13,7 @@ public interface Variable<T> { } T get(); - void set(T value) throws UpdateConflict; + DelayedOperation set(T value); void update(); void setOnChangeListener(OnChangeListener<T> listener); } diff --git a/same/src/main/java/com/orbekk/same/VariableFactory.java b/same/src/main/java/com/orbekk/same/VariableFactory.java index f1796d6..fa9eeeb 100644 --- a/same/src/main/java/com/orbekk/same/VariableFactory.java +++ b/same/src/main/java/com/orbekk/same/VariableFactory.java @@ -10,6 +10,7 @@ import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.orbekk.same.State.Component; +import com.orbekk.util.DelayedOperation; /** * TODO: Use WeakReference in order to make variables GC-able. @@ -37,12 +38,12 @@ public class VariableFactory { } @Override - public void set(T value) throws UpdateConflict { + public DelayedOperation set(T value) { try { String serializedValue = mapper.writeValueAsString(value); State.Component update = new State.Component(identifier, revision, serializedValue); - client.set(update); + return client.set(update); } catch (JsonGenerationException e) { logger.warn("Failed to convert to JSON: {}", value); logger.warn("Parse exception.", e); diff --git a/same/src/main/java/com/orbekk/same/http/StateServlet.java b/same/src/main/java/com/orbekk/same/http/StateServlet.java index 578bdfc..efc4237 100644 --- a/same/src/main/java/com/orbekk/same/http/StateServlet.java +++ b/same/src/main/java/com/orbekk/same/http/StateServlet.java @@ -37,18 +37,14 @@ public class StateServlet extends HttpServlet { "Usage: action=set&key=DesiredKey&value=DesiredValue"); } - try { - String key = request.getParameter("key"); - String value = request.getParameter("value"); - Variable<String> variable = variableFactory.createString(key); - variable.set(value); + String key = request.getParameter("key"); + String value = request.getParameter("value"); + Variable<String> variable = variableFactory.createString(key); - response.getWriter().println("Updated component: " + - key + "=" + value); - } catch (UpdateConflict e) { - response.getWriter().println("Update conflict: " + - throwableToString(e)); - } + variable.set(value).waitFor(); + + response.getWriter().println("Updated component: " + + key + "=" + value); } @Override |