Example usage for org.springframework.remoting RemoteAccessException RemoteAccessException

Introduction

In this page you can find the example usage for org.springframework.remoting RemoteAccessException RemoteAccessException.

Prototype

public RemoteAccessException(String msg) 

Source Link

Document

Constructor for RemoteAccessException.

Usage

From source file:com.zz.cluster4spring.support.invocation.DefaultEndpointSelectionPolicy.java

/**
 * Selects endpoint for invocation from the given list of endpoints. Simply
 * selects the first element from the list.
 *
 * @param aEndpoints// w w w.  j a v a2s .co  m
 *            list of endpoints available for invocation of remote service
 * @return selected endpoints
 * @throws org.springframework.remoting.RemoteAccessException
 *             throw if some error occured during seleting endpoint for
 *             invocation
 */
public E selectServiceEndpoint(List<E> aEndpoints) throws RemoteAccessException {
    if (aEndpoints == null) {
        String message = "Unable to obtain service endpoint - list of endpoints is null";
        if (fLog.isErrorEnabled()) {
            fLog.error(message);
        }
        throw new RemoteAccessException(message);
    }
    E result = null;
    try {
        // we simply always return first item from the list
        result = aEndpoints.iterator().next();
        if (fLog.isTraceEnabled()) {
            SI serviceInfo = result.getServiceInfo();
            String message = format("EndPoint selected. Service URL: [{0}]", serviceInfo);
            fLog.trace(message);
        }
    } catch (Exception e) {
        throw new RemoteLookupFailureException("Unable to obtain service endpoint", e);
    }
    return result;
}

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From source file:com.zz.cluster4spring.support.invocation.ShuffleEndpointSelectionPolicy.java

/**
 * Selects endpoint for invocation from the given list of endpoints. This
 * implementation creates copy of given list, shuffle it and selects
 * firstendpoint from resulting list./*ww w .jav  a 2  s .  c  o m*/
 *
 * @param aEndpoints
 *            list of endpoints available for invocation of remote service
 * @return selected endpoints
 * @throws org.springframework.remoting.RemoteAccessException
 *             throw if some error occured during seleting endpoint for
 *             invocation
 * @see Collections#shuffle(java.util.List)
 */
public E selectServiceEndpoint(List<E> aEndpoints) throws RemoteAccessException {
    if (aEndpoints == null) {
        String message = "Unable to obtain service endpoint - list of endpoints is null";
        if (fLog.isErrorEnabled()) {
            fLog.error(message);
        }
        throw new RemoteAccessException(message);
    }

    // we create copy of originated list, shuffle it and select first item
    // from that list
    List<E> copy = new ArrayList<E>(aEndpoints);
    Collections.shuffle(copy);
    E result = copy.get(0);
    if (fLog.isTraceEnabled()) {
        SI serviceInfo = result.getServiceInfo();
        String message = format("EndPoint selected. Service URL: [{0}]", serviceInfo);
        fLog.trace(message);
    }
    return result;
}

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From source file:com.turbospaces.network.NetworkCommunicationDispatcher.java

/**
 * check each particular response and verify that there are no remote exceptions, otherwise thrown proper combined
 * exception./*  w w  w  .j a  v a  2  s . c om*/
 * 
 * @param result
 *            remote execution result
 * @param messages
 *            remote messages that have been sent to server node
 * @param methodCall
 *            original method call
 * 
 * @return result itself
 */
@VisibleForTesting
static MethodCall[] verifyNoExceptions(final MethodCall[] result, final Message[] messages,
        final MethodCall methodCall) {
    int size = result.length;
    List<String> remoteExceptions = null;
    for (int i = 0; i < size; i++) {
        Message message = messages[i];
        Address destination = message.getDest();
        if (result[i] != null) {
            String exceptionAsString = result[i].getExceptionAsString();
            if (exceptionAsString != null) {
                if (remoteExceptions == null)
                    remoteExceptions = Lists.newArrayList();
                remoteExceptions.add(String.format("failed to execute %s on %s due to: \n %s", methodCall,
                        destination, exceptionAsString));
            }
        }
    }

    if (remoteExceptions != null) {
        StringBuilder builder = new StringBuilder();
        builder.append("unable to call remote method(s) due to single(multiple) failures: ").append("\n");
        for (String e : remoteExceptions) {
            builder.append("\t");
            builder.append(e);
            builder.append("\n");
        }
        String failure = builder.toString();
        LOGGER.error(failure);
        throw new RemoteAccessException(failure);
    }
    return result;
}

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