package jasco.runtime.distribution.aspects;

import jasco.runtime.distribution.*;

class Sharing {
	
	hook Synchronize {
		
		private String aspectname;
		private String fieldname;
		
		Synchronize(method(Object newValue)) {
			execution(method) && !executionhost(joinpointhost);
		}
		
		after() {
			System.out.println("should not happen!");
			getSharedField().setValue(newValue);
		}
		
		public void setSharedFieldInfo(String a, String f) {
			
			this.aspectname=a;
			this.fieldname=f;
		}
		
		public ISharedField getSharedField() {
			return jasco.runtime.distribution.DistributedSharingManager.getInstance().getSharedMasterField(aspectname,fieldname);
		}
	}
	
	hook QueryMaster {
		
		private String aspectname;
		private String fieldname;
		
		QueryMaster(method(..args)) {
			execution(method) && joinpointhost(localhost);
		}
		
		public void setSharedFieldInfo(String a, String f) {
			
			this.aspectname=a;
			this.fieldname=f;
		}
		
		around() {
			
			return getSharedField().getValue();
		}
		
		public ISharedField getSharedField() {
			return jasco.runtime.distribution.DistributedSharingManager.getInstance().getSharedMasterField(aspectname,fieldname);
		}
	}
	
	hook SetMaster {
		
		private String aspectname;
		private String fieldname;
		
		SetMaster(method(Object arg1)) {
			execution(method) && joinpointhost(localhost);
		}
		
		public void setSharedFieldInfo(String a, String f) {
			
			this.aspectname=a;
			this.fieldname=f;
		}
		
		around() {
			
			getSharedField().setValue(arg1);
			return null;
		}
		
		public ISharedField getSharedField() {
			return jasco.runtime.distribution.DistributedSharingManager.getInstance().getSharedMasterField(aspectname,fieldname);
		}
	}
}