prevent mssqlserver deadlock

Signed-off-by: arnaud.mergey@semarchy.com <arnaud.mergey@semarchy.com>

quartz/build.gradle

@@ -42,6 +42,8 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-params'
     testImplementation 'org.junit.jupiter:junit-jupiter-params'
     testImplementation 'org.mockito:mockito-core:5.14.2'
+    testImplementation 'org.testcontainers:mssqlserver:1.20.3'
+    testImplementation 'com.microsoft.sqlserver:mssql-jdbc:12.8.1.jre11'
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
 }
 

quartz/src/main/java/org/quartz/impl/jdbcjobstore/MSSQLDelegate.java

@@ -18,11 +18,20 @@
 
 package org.quartz.impl.jdbcjobstore;
 
+import static org.quartz.TriggerKey.triggerKey;
+
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.ObjectInputStream;
+import java.math.BigDecimal;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.quartz.TriggerKey;
 
 /**
  * <p>
@@ -80,6 +89,44 @@ protected Object getJobDataFromBlob(ResultSet rs, String colName)
         }
         return getObjectFromBlob(rs, colName);
     }
+
+    @Override
+    public List<TriggerKey> selectTriggerToAcquire(Connection conn, long noLaterThan, long noEarlierThan, int maxCount)
+            throws SQLException {
+        // Set max rows to retrieve
+        if (maxCount < 1)
+            maxCount = 1; // we want at least one trigger back.
+        String selectTriggerToAcquire = "SELECT TOP " + maxCount + " " + SELECT_NEXT_TRIGGER_TO_ACQUIRE.substring(6);
+        PreparedStatement ps = null;
+        ResultSet rs = null;
+        List<TriggerKey> nextTriggers = new LinkedList<>();
+        try {
+            ps = conn.prepareStatement(rtp(selectTriggerToAcquire));
+
+            ps.setMaxRows(maxCount);
+
+            // Try to give jdbc driver a hint to hopefully not pull over more than the few rows we actually need.
+            // Note: in some jdbc drivers, such as MySQL, you must set maxRows before fetchSize, or you get exception!
+            ps.setFetchSize(maxCount);
+
+            ps.setString(1, STATE_WAITING);
+            ps.setBigDecimal(2, new BigDecimal(String.valueOf(noLaterThan)));
+            ps.setBigDecimal(3, new BigDecimal(String.valueOf(noEarlierThan)));
+            rs = ps.executeQuery();
+
+            while (rs.next() && nextTriggers.size() < maxCount) {
+                nextTriggers.add(triggerKey(
+                        rs.getString(COL_TRIGGER_NAME),
+                        rs.getString(COL_TRIGGER_GROUP)));
+            }
+
+            return nextTriggers;
+        } finally {
+            closeResultSet(rs);
+            closeStatement(ps);
+        }      
+    }
+
 }
 
 // EOF

quartz/src/test/java/org/quartz/impl/jdbcjobstore/JdbcQuartzMSSQLUtilities.java

@@ -0,0 +1,82 @@
+/* 
+ * Copyright Super iPaaS Integration LLC, an IBM Company 2024 
+ * 
+ * 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 org.quartz.impl.jdbcjobstore;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+import org.testcontainers.containers.MSSQLServerContainer;
+
+/**
+ * A utility class to create a database for Quartz MSSQL test.
+ *
+ * @author Arnaud Mergey
+ */
+
+public final class JdbcQuartzMSSQLUtilities {
+	private static final List<String> DATABASE_SETUP_STATEMENTS;
+	static {
+		List<String> setup = new ArrayList<String>();
+		String setupScript;
+		try {
+			InputStream setupStream = MSSQLDelegate.class.getClassLoader()
+					.getResourceAsStream("org/quartz/impl/jdbcjobstore/tables_sqlServer.sql");
+			try {
+				BufferedReader r = new BufferedReader(new InputStreamReader(setupStream, "US-ASCII"));
+				StringBuilder sb = new StringBuilder();
+				while (true) {
+					String line = r.readLine();
+					if (line == null) {
+						break;
+					} else if (!line.startsWith("--")) {
+						sb.append(line.replace("GO", ";").replace("[enter_db_name_here]", "[master]")).append("\n");
+					}
+				}
+				setupScript = sb.toString();
+			} finally {
+				setupStream.close();
+			}
+		} catch (IOException e) {
+			throw new AssertionError(e);
+		}
+		for (String command : setupScript.split(";")) {
+			if (!command.matches("\\s*")) {
+				setup.add(command);
+			}
+		}
+		DATABASE_SETUP_STATEMENTS = setup;
+	}
+
+	public static void createDatabase(MSSQLServerContainer<?> container) throws SQLException {
+		Connection conn = container.createConnection("");
+		try {
+			Statement statement = conn.createStatement();
+			for (String command : DATABASE_SETUP_STATEMENTS) {
+				statement.addBatch(command);
+			}
+			statement.executeBatch();
+		} finally {
+			conn.close();
+		}
+	}
+}

quartz/src/test/java/org/quartz/integrations/tests/QuartzMSSQLDatabaseCronTriggerTest.java

@@ -0,0 +1,61 @@
+/* 
+ * Copyright Super iPaaS Integration LLC, an IBM Company 2024 
+ * 
+ * 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 org.quartz.integrations.tests;
+import java.util.Collections;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import org.junit.jupiter.api.Test;
+import org.quartz.*;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.collection.IsCollectionWithSize.hasSize;
+import static org.hamcrest.core.Is.is;
+import static org.hamcrest.number.OrderingComparison.greaterThanOrEqualTo;
+import static org.quartz.integrations.tests.TrackingJob.SCHEDULED_TIMES_KEY;
+/**
+ * A integration test for Quartz MSSQL Database Scheduler with Cron Trigger.
+ * 
+ * @author Arnaud Mergey
+ */
+public class QuartzMSSQLDatabaseCronTriggerTest extends QuartzMSSQLTestSupport {
+	@Test
+    void testCronRepeatCount() throws Exception {
+        CronTrigger trigger = TriggerBuilder.newTrigger()
+                .withIdentity("test")
+                .withSchedule(CronScheduleBuilder.cronSchedule("* * * * * ?"))
+                .build();
+        List<Long> scheduledTimes = Collections.synchronizedList(new LinkedList<Long>());
+        scheduler.getContext().put(SCHEDULED_TIMES_KEY, scheduledTimes);
+        JobDetail jobDetail = JobBuilder.newJob(TrackingJob.class).withIdentity("test").build();
+        scheduler.scheduleJob(jobDetail, trigger);
+
+        for (int i = 0; i < 20 && scheduledTimes.size() < 3; i++) {
+          Thread.sleep(500);
+        }
+        assertThat(scheduledTimes, hasSize(greaterThanOrEqualTo(3)));
+
+        Long[] times = scheduledTimes.toArray(new Long[scheduledTimes.size()]);
+        long baseline = times[0];
+        assertThat(baseline % 1000, is(0L));
+        for (int i = 1; i < times.length; i++) {
+          assertThat(times[i], is(baseline + TimeUnit.SECONDS.toMillis(i)));
+        }
+    }
+}

quartz/src/test/java/org/quartz/integrations/tests/QuartzMSSQLTestSupport.java

@@ -0,0 +1,86 @@
+/* 
+ * Copyright Super iPaaS Integration LLC, an IBM Company 2024 
+ * 
+ * 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 org.quartz.integrations.tests;
+
+import java.sql.SQLException;
+import java.util.Properties;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.quartz.impl.jdbcjobstore.JdbcQuartzMSSQLUtilities;
+import org.quartz.impl.jdbcjobstore.MSSQLDelegate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testcontainers.containers.MSSQLServerContainer;
+import org.testcontainers.utility.DockerImageName;
+
+/**
+ * A base class to support database (MSSQL) scheduler integration testing. Each
+ * test will have a fresh scheduler created and started, and it will auto
+ * shutdown upon each test run. The database will be created with schema before
+ * class and destroy after class test.
+ *
+ * @author Arnaud Mergey
+ */
+public class QuartzMSSQLTestSupport extends QuartzMemoryTestSupport {
+    protected static final Logger LOG = LoggerFactory.getLogger(QuartzMSSQLTestSupport.class);
+    static MSSQLServerContainer<?> mssqlserver = new MSSQLServerContainer(
+            DockerImageName.parse(MSSQLServerContainer.IMAGE).withTag("latest")).acceptLicense();
+
+    @BeforeAll
+    public static void initialize() throws Exception {
+        LOG.info("Starting MSSQL database.");
+        mssqlserver.start();
+        LOG.info("Database started.");
+        try {
+            LOG.info("Creating Database tables for Quartz.");
+            JdbcQuartzMSSQLUtilities.createDatabase(mssqlserver);
+            LOG.info("Database tables created.");
+        } catch (SQLException e) {
+            throw new Exception("Failed to create Quartz tables.", e);
+        }
+    }
+
+    @AfterAll
+    public static void shutdownDb() throws Exception {
+        mssqlserver.stop();
+        LOG.info("Database shutdown.");
+    }
+
+    protected Properties createSchedulerProperties() {
+        Properties properties = new Properties();
+        properties.put("org.quartz.scheduler.instanceName", "TestScheduler");
+        properties.put("org.quartz.scheduler.instanceId", "AUTO");
+        properties.put("org.quartz.scheduler.skipUpdateCheck", "true");
+        properties.put("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool");
+        properties.put("org.quartz.threadPool.threadCount", "12");
+        properties.put("org.quartz.threadPool.threadPriority", "5");
+        properties.put("org.quartz.jobStore.misfireThreshold", "10000");
+        properties.put("org.quartz.jobStore.class", "org.quartz.impl.jdbcjobstore.JobStoreTX");
+        properties.put("org.quartz.jobStore.driverDelegateClass", MSSQLDelegate.class.getName());
+        properties.put("org.quartz.jobStore.useProperties", "true");
+        properties.put("org.quartz.jobStore.dataSource", "myDS");
+        properties.put("org.quartz.jobStore.tablePrefix", "QRTZ_");
+        properties.put("org.quartz.jobStore.isClustered", "false");
+        properties.put("org.quartz.dataSource.myDS.driver", mssqlserver.getDriverClassName());
+        properties.put("org.quartz.dataSource.myDS.URL", mssqlserver.getJdbcUrl());
+        properties.put("org.quartz.dataSource.myDS.user", mssqlserver.getUsername());
+        properties.put("org.quartz.dataSource.myDS.password", mssqlserver.getPassword());
+        properties.put("org.quartz.dataSource.myDS.maxConnections", "5");
+        properties.put("org.quartz.dataSource.myDS.provider", "hikaricp");
+        return properties;
+    }
+}