function for handling odata error calls

handleError.js

function(oError) {
		this.setBusy(false);
		// var msg = $(oError.response.body).find('message').first().text();
		try {
			var msg = JSON.parse( oError.response.body).error.message.value;
			msg = msg.split("|")[1];	
		} finally {
			msg = "An error occurred on requesting access.";
		}
		jQuery.sap.require("sap.m.MessageBox");
		sap.m.MessageBox.show(msg,
			sap.m.MessageBox.Icon.ERROR,
			"Error", [sap.m.MessageBox.Action.CLOSE]);
	}