SyncErrorType.java

package org.activityinfo.ui.client.local.sync;

import com.bedatadriven.rebar.appcache.client.AppCacheException;
import com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException;
import com.google.gwt.user.client.rpc.InvocationException;

public enum SyncErrorType {

    CONNECTION_PROBLEM,

    NEW_VERSION,

    INVALID_AUTH,

    APPCACHE_TIMEOUT,

    UNEXPECTED_EXCEPTION;

    public static SyncErrorType fromException(Throwable caught) {
        if (caught instanceof SyncException) {
            return ((SyncException) caught).getType();
        }
        if (caught instanceof IncompatibleRemoteServiceException) {
            return SyncErrorType.NEW_VERSION;
        } else if (caught instanceof InvocationException) {
            return SyncErrorType.CONNECTION_PROBLEM;
        } else if (caught instanceof AppCacheException) {
            AppCacheException ace = (AppCacheException) caught;
            switch (ace.getErrorType()) {
                case CONNECTION:
                    return SyncErrorType.CONNECTION_PROBLEM;
                case OBSOLETE:
                    // the cache gets marked as obsolete if the user's auth expires
                    return SyncErrorType.INVALID_AUTH;
                case TIMEOUT:
                    return SyncErrorType.APPCACHE_TIMEOUT;
            }
        }
        return SyncErrorType.UNEXPECTED_EXCEPTION;
    }

}