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Server-side library used by applications created with the JHipster generator, see https://www.jhipster.tech/ for more information on JHipster

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/*
 * Copyright 2016-2020 the original author or authors from the JHipster project.
 *
 * This file is part of the JHipster project, see https://www.jhipster.tech/
 * for more information.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.github.jhipster.config.h2;

import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletRegistration;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.sql.SQLException;

/**
 * Utility class to configure H2 in development.
 * 

* We don't want to include H2 when we are packaging for the "prod" profile and won't * actually need it, so we have to load / invoke things at runtime through reflection. */ public class H2ConfigurationHelper { /** *

createServer.

* * @return a {@link java.lang.Object} object. * @throws java.sql.SQLException if any. */ public static Object createServer() throws SQLException { return createServer("9092"); } /** *

createServer.

* * @param port a {@link java.lang.String} object. * @return a {@link java.lang.Object} object. * @throws java.sql.SQLException if any. */ public static Object createServer(String port) throws SQLException { try { ClassLoader loader = Thread.currentThread().getContextClassLoader(); Class serverClass = Class.forName("org.h2.tools.Server", true, loader); Method createServer = serverClass.getMethod("createTcpServer", String[].class); return createServer.invoke(null, new Object[]{new String[]{"-tcp", "-tcpAllowOthers", "-tcpPort", port}}); } catch (ClassNotFoundException | LinkageError e) { throw new RuntimeException("Failed to load and initialize org.h2.tools.Server", e); } catch (SecurityException | NoSuchMethodException e) { throw new RuntimeException("Failed to get method org.h2.tools.Server.createTcpServer()", e); } catch (IllegalAccessException | IllegalArgumentException e) { throw new RuntimeException("Failed to invoke org.h2.tools.Server.createTcpServer()", e); } catch (InvocationTargetException e) { Throwable t = e.getTargetException(); if (t instanceof SQLException) { throw (SQLException) t; } throw new RuntimeException("Unchecked exception in org.h2.tools.Server.createTcpServer()", t); } } /** *

initH2Console.

* * @param servletContext a {@link javax.servlet.ServletContext} object. */ public static void initH2Console(ServletContext servletContext) { try { // We don't want to include H2 when we are packaging for the "prod" profile and won't // actually need it, so we have to load / invoke things at runtime through reflection. ClassLoader loader = Thread.currentThread().getContextClassLoader(); Class servletClass = Class.forName("org.h2.server.web.WebServlet", true, loader); Servlet servlet = (Servlet) servletClass.getDeclaredConstructor().newInstance(); ServletRegistration.Dynamic h2ConsoleServlet = servletContext.addServlet("H2Console", servlet); h2ConsoleServlet.addMapping("/h2-console/*"); h2ConsoleServlet.setInitParameter("-properties", "src/main/resources/"); h2ConsoleServlet.setLoadOnStartup(1); } catch (ClassNotFoundException | LinkageError | NoSuchMethodException | InvocationTargetException e) { throw new RuntimeException("Failed to load and initialize org.h2.server.web.WebServlet", e); } catch (IllegalAccessException | InstantiationException e) { throw new RuntimeException("Failed to instantiate org.h2.server.web.WebServlet", e); } } }




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