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package com.fr.design; |
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import com.fr.design.dialog.FineJOptionPane; |
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import com.fr.design.i18n.Toolkit; |
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import com.fr.design.mainframe.DesignerContext; |
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import com.fr.design.ui.util.UIUtil; |
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import com.fr.event.Event; |
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import com.fr.event.EventDispatcher; |
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import com.fr.event.Listener; |
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import com.fr.log.FineLoggerFactory; |
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import com.fr.stable.StableUtils; |
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import com.fr.third.org.apache.http.client.config.RequestConfig; |
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import com.fr.third.org.apache.http.client.methods.CloseableHttpResponse; |
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import com.fr.third.org.apache.http.client.methods.HttpGet; |
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import com.fr.third.org.apache.http.impl.client.CloseableHttpClient; |
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import com.fr.third.org.apache.http.impl.client.HttpClients; |
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import com.fr.workspace.WorkContext; |
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import com.fr.workspace.Workspace; |
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import com.fr.workspace.WorkspaceEvent; |
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import com.fr.workspace.base.WorkspaceConstants; |
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import com.fr.workspace.connect.WorkspaceConnectionInfo; |
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import com.fr.workspace.engine.channel.WorkspaceChannelFactory; |
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import com.fr.workspace.engine.exception.WorkspaceConnectionException; |
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import javax.swing.*; |
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/** |
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* RPC连接处理中心 |
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* |
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* @author Roger |
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* @since 11.0 |
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* Created on 2023/12/13 |
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*/ |
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public class RPCConnectHandlerCenter { |
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private static volatile boolean alerting = false; |
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private static final int TIMEOUT = 5000; |
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private static Listener<Workspace> listener = new Listener<Workspace>() { |
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@Override |
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public void on(Event event, Workspace workspace) { |
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//暂时先不做重连处理，3次RPC连接失败后提示切换工作目录
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showRPCDisconnectDialog(); |
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} |
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}; |
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/** |
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* 开启事件监听 |
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*/ |
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public static void startListener() { |
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if (!WorkContext.getCurrent().isLocal()) { |
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EventDispatcher.listen(WorkspaceEvent.LostConnect, listener); |
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} |
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} |
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/** |
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* 弹窗提示连接断开 |
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*/ |
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public static void showRPCDisconnectDialog() { |
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UIUtil.invokeLaterIfNeeded(RPCConnectHandlerCenter::showDialog); |
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} |
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/** |
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* RPC连接测试 |
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* |
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* @param info 连接信息 |
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* @return 是否连接成功 |
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*/ |
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public static boolean checkRPCConnect(WorkspaceConnectionInfo info) { |
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try { |
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return WorkspaceChannelFactory.testConnection(info); |
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} catch (Exception e) { |
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FineLoggerFactory.getLogger().error(e, e.getMessage()); |
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return false; |
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} |
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} |
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/** |
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* http连接检测，从DesignerSocketIO中移过来的，先保留着 |
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* |
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* @param info 连接信息 |
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* @return 是否连接成功 |
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*/ |
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public static boolean checkHttpConnect(WorkspaceConnectionInfo info) { |
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CloseableHttpClient httpclient = HttpClients.createDefault(); |
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HttpGet httpGet = new HttpGet(StableUtils.pathJoin(info.getUrl(), WorkspaceConstants.CONTROLLER_PREFIX, WorkspaceConstants.VT)); |
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RequestConfig requestConfig = RequestConfig |
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.custom() |
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.setConnectTimeout(TIMEOUT) |
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.setConnectionRequestTimeout(TIMEOUT) |
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.build(); |
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httpGet.setConfig(requestConfig); |
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try { |
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CloseableHttpResponse response = httpclient.execute(httpGet); |
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if (isErrorStatus(response.getStatusLine().getStatusCode())) { |
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//这边nginx做负载，服务器被kill掉，返回的是502，不会抛错，导致checkRPCConnect通过
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//针对500-600的错误码加个判断，其他类型的状态码暂不考虑，如果有遇到再处理，不然怕影响范围大
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throw new WorkspaceConnectionException("Response " + response.getStatusLine().toString()); |
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} |
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} catch (Exception e) { |
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FineLoggerFactory.getLogger().error(e, e.getMessage()); |
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return false; |
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} |
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return true; |
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} |
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/** |
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* 提示连接已经断开，如果已经在提示中了就直接返回 |
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*/ |
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private static void showDialog() { |
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if (alerting) { |
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return; |
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} |
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synchronized (RPCConnectHandlerCenter.class) { |
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if (alerting) { |
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return; |
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} |
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alerting = true; |
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try { |
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FineJOptionPane.showMessageDialog( |
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DesignerContext.getDesignerFrame(), |
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Toolkit.i18nText("Fine-Design_Basic_Remote_Disconnected"), |
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UIManager.getString("OptionPane.messageDialogTitle"), |
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JOptionPane.ERROR_MESSAGE, |
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UIManager.getIcon("OptionPane.errorIcon")); |
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EnvChangeEntrance.getInstance().chooseEnv(); |
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} finally { |
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alerting = false; |
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} |
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} |
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} |
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/** |
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* 错误状态码 |
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* 5xx(服务器错误)这些状态代码表示服务器在尝试处理请求时发生内部错误。 这些错误可能是服务器本身的错误，而不是请求出错。代码 说明 |
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* 500 (服务器内部错误) 服务器遇到错误，无法完成请求。 |
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* 501 (尚未实施) 服务器不具备完成请求的功能。 例如，服务器无法识别请求方法时可能会返回此代码。 |
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* 502 (错误网关) 服务器作为网关或代理，从上游服务器收到无效响应。 |
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* 503 (服务不可用) 服务器目前无法使用(由于超载或停机维护)。 通常，这只是暂时状态。 |
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* 504 (网关超时) 服务器作为网关或代理，但是没有及时从上游服务器收到请求。 |
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* 505 (HTTP 版本不受支持) 服务器不支持请求中所用的 HTTP 协议版本。 |
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* |
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* @param status 错误状态码 |
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* @return 是否是错误状态码 |
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*/ |
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private static boolean isErrorStatus(int status) { |
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return status >= 500 && status <= 600; |
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} |
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/** |
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* 停止事件监听 |
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*/ |
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public static void stopListener() { |
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if (!WorkContext.getCurrent().isLocal()) { |
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EventDispatcher.stopListen(listener); |
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} |
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} |
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} |
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