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整理server端远程配置, 统一扩展接口

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This commit is contained in:
mcy
2019-01-25 17:50:50 +08:00
parent 197ca67c8b
commit a7467539c7
8 changed files with 274 additions and 167 deletions
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31
deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalLauncher.java
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@@ -7,7 +7,9 @@ import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.otter.canal.deployer.monitor.ManagerRemoteConfigMonitor;
import com.alibaba.otter.canal.deployer.monitor.remote.RemoteConfigLoader;
import com.alibaba.otter.canal.deployer.monitor.remote.RemoteConfigLoaderFactory;
import com.alibaba.otter.canal.deployer.monitor.remote.RemoteCanalConfigMonitor;
/**
* canal独立版本启动的入口类
@@ -30,7 +32,7 @@ public class CanalLauncher {
logger.info("## load canal configurations");
String conf = System.getProperty("canal.conf", "classpath:canal.properties");
Properties properties = new Properties();
ManagerRemoteConfigMonitor managerDbConfigMonitor = null;
RemoteConfigLoader remoteConfigLoader = null;
if (conf.startsWith(CLASSPATH_URL_PREFIX)) {
conf = StringUtils.substringAfter(conf, CLASSPATH_URL_PREFIX);
properties.load(CanalLauncher.class.getClassLoader().getResourceAsStream(conf));
@@ -38,31 +40,24 @@ public class CanalLauncher {
properties.load(new FileInputStream(conf));
}
String jdbcUrl = properties.getProperty("canal.manager.jdbc.url");
if (!StringUtils.isEmpty(jdbcUrl)) {
logger.info("## load remote canal configurations");
// load remote config
String jdbcUsername = properties.getProperty("canal.manager.jdbc.username");
String jdbcPassword = properties.getProperty("canal.manager.jdbc.password");
managerDbConfigMonitor = new ManagerRemoteConfigMonitor(jdbcUrl, jdbcUsername, jdbcPassword);
remoteConfigLoader = RemoteConfigLoaderFactory.getRemoteConfigLoader(properties);
if (remoteConfigLoader != null) {
// 加载远程canal.properties
Properties remoteConfig = managerDbConfigMonitor.loadRemoteConfig();
Properties remoteConfig = remoteConfigLoader.loadRemoteConfig();
// 加载remote instance配置
managerDbConfigMonitor.loadRemoteInstanceConfigs();
remoteConfigLoader.loadRemoteInstanceConfigs();
if (remoteConfig != null) {
properties = remoteConfig;
} else {
managerDbConfigMonitor = null;
remoteConfigLoader = null;
}
} else {
logger.info("## load canal configurations");
}
final CanalStater canalStater = new CanalStater();
canalStater.start(properties);
if (managerDbConfigMonitor != null) {
managerDbConfigMonitor.start(new ManagerRemoteConfigMonitor.Listener<Properties>() {
if (remoteConfigLoader != null) {
remoteConfigLoader.startMonitor(new RemoteCanalConfigMonitor() {
@Override
public void onChange(Properties properties) {
@@ -81,8 +76,8 @@ public class CanalLauncher {
Thread.sleep(1000);
}
if (managerDbConfigMonitor != null) {
managerDbConfigMonitor.destroy();
if (remoteConfigLoader != null) {
remoteConfigLoader.destroy();
}
} catch (Throwable e) {
logger.error("## Something goes wrong when starting up the canal Server:", e);

47
deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/remote/ConfigItem.java Normal file
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@@ -0,0 +1,47 @@
package com.alibaba.otter.canal.deployer.monitor.remote;
/**
* 配置对应对象
*
* @author rewerma 2019-01-25 下午05:20:16
* @version 1.0.0
*/
public class ConfigItem {
private Long id;
private String name;
private String content;
private long modifiedTime;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public long getModifiedTime() {
return modifiedTime;
}
public void setModifiedTime(long modifiedTime) {
this.modifiedTime = modifiedTime;
}
}

242
deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/ManagerRemoteConfigMonitor.java → deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/remote/DbRemoteConfigLoader.java
View File

@@ -1,39 +1,41 @@
package com.alibaba.otter.canal.deployer.monitor;
package com.alibaba.otter.canal.deployer.monitor.remote;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileWriter;
import java.nio.charset.StandardCharsets;
import java.sql.*;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.*;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.otter.canal.common.utils.NamedThreadFactory;
import com.alibaba.otter.canal.deployer.CanalConstants;
import com.google.common.base.Joiner;
import com.google.common.collect.MapMaker;
/**
* 远程配置装载监控
* 基于数据库的远程配置装载器
*
* @author rewerma 2018-12-30 下午05:12:16
* @version 1.0.1
* @author rewerma 2019-01-25 下午05:20:16
* @version 1.0.0
*/
public class ManagerRemoteConfigMonitor {
public class DbRemoteConfigLoader implements RemoteConfigLoader {
private static final Logger logger = LoggerFactory.getLogger(ManagerRemoteConfigMonitor.class);
private static final Logger logger = LoggerFactory.getLogger(DbRemoteConfigLoader.class);
private Map<String, ConfigItem> remoteInstanceConfigs = new MapMaker().makeMap();
private Connection conn;
private String jdbcUrl;
private String jdbcUsername;
private String jdbcPassword;
private DruidDataSource dataSource;
private long currentConfigTimestamp = 0;
@@ -41,29 +43,36 @@ public class ManagerRemoteConfigMonitor {
private ScheduledExecutorService executor = Executors.newScheduledThreadPool(2,
new NamedThreadFactory("remote-canal-config-scan"));
public ManagerRemoteConfigMonitor(String jdbcUrl, String jdbcUsername, String jdbcPassword){
this.jdbcUrl = jdbcUrl;
this.jdbcUsername = jdbcUsername;
this.jdbcPassword = jdbcPassword;
}
private RemoteInstanceMonitor remoteInstanceMonitor = new RemoteInstanceMonitorImpl();
public void setScanIntervalInSecond(long scanIntervalInSecond) {
this.scanIntervalInSecond = scanIntervalInSecond;
}
private Connection getConn() throws Exception {
if (conn == null || conn.isClosed()) {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection(jdbcUrl, jdbcUsername, jdbcPassword);
public DbRemoteConfigLoader(String driverName, String jdbcUrl, String jdbcUsername, String jdbcPassword){
dataSource = new DruidDataSource();
if (StringUtils.isEmpty(driverName)) {
driverName = "com.mysql.jdbc.Driver";
}
dataSource.setDriverClassName(driverName);
dataSource.setUrl(jdbcUrl);
dataSource.setUsername(jdbcUsername);
dataSource.setPassword(jdbcPassword);
dataSource.setInitialSize(1);
dataSource.setMinIdle(1);
dataSource.setMaxActive(1);
dataSource.setMaxWait(60000);
dataSource.setTimeBetweenEvictionRunsMillis(60000);
dataSource.setMinEvictableIdleTimeMillis(300000);
try {
dataSource.init();
} catch (SQLException e) {
throw new RuntimeException(e.getMessage(), e);
}
return conn;
}
/**
* 加载远程 canal.properties文件 覆盖本地
* 加载远程 canal.properties文件
*
* @return 远程配置的properties
*/
@Override
public Properties loadRemoteConfig() {
Properties properties = null;
try {
@@ -87,15 +96,14 @@ public class ManagerRemoteConfigMonitor {
}
/**
* 加载远程的instance配置 覆盖本地
* 覆盖本地 canal.properties
*
* @param content 远程配置内容文本
*/
public void loadRemoteInstanceConfigs() {
try {
// 加载远程instance配置
Map<String, ConfigItem>[] modifiedConfigs = getModifiedInstanceConfigs();
if (modifiedConfigs != null) {
overrideLocalInstanceConfigs(modifiedConfigs);
}
private void overrideLocalCanalConfig(String content) {
try (FileWriter writer = new FileWriter(getConfPath() + "canal.properties")) {
writer.write(content);
writer.flush();
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
@@ -108,7 +116,9 @@ public class ManagerRemoteConfigMonitor {
*/
private ConfigItem getRemoteCanalConfig() {
String sql = "select name, content, modified_time from canal_config where id=1";
try (Statement stmt = getConn().createStatement(); ResultSet rs = stmt.executeQuery(sql)) {
try (Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql)) {
if (rs.next()) {
ConfigItem configItem = new ConfigItem();
configItem.setId(1L);
@@ -124,30 +134,27 @@ public class ManagerRemoteConfigMonitor {
}
/**
* 覆盖本地 canal.properties
*
* @param content 远程配置内容文本
* 加载远程的instance配置
*/
private void overrideLocalCanalConfig(String content) {
try (FileWriter writer = new FileWriter(getConfPath() + "canal.properties")) {
writer.write(content);
writer.flush();
@Override
public void loadRemoteInstanceConfigs() {
try {
// 加载远程instance配置
loadModifiedInstanceConfigs();
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
/**
* 获取远程instance新增、修改、删除配置
*
* @return Map[0]：新增或修改的instance配置; Map[1]：删除的instance配置
* 加载远程instance新增、修改、删除配置
*/
@SuppressWarnings("unchecked")
private Map<String, ConfigItem>[] getModifiedInstanceConfigs() {
Map<String, ConfigItem>[] res = new Map[2];
private void loadModifiedInstanceConfigs() {
Map<String, ConfigItem> remoteConfigStatus = new HashMap<>();
String sql = "select id, name, modified_time from canal_instance_config";
try (Statement stmt = getConn().createStatement(); ResultSet rs = stmt.executeQuery(sql)) {
try (Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql)) {
while (rs.next()) {
ConfigItem configItem = new ConfigItem();
configItem.setId(rs.getLong("id"));
@@ -157,7 +164,6 @@ public class ManagerRemoteConfigMonitor {
}
} catch (Exception e) {
logger.error(e.getMessage(), e);
return null;
}
if (!remoteConfigStatus.isEmpty()) {
@@ -176,10 +182,11 @@ public class ManagerRemoteConfigMonitor {
}
}
if (!changedIds.isEmpty()) {
Map<String, ConfigItem> changedInstanceConfig = new HashMap<>();
String contentsSql = "select id, name, content, modified_time from canal_instance_config where id in ("
+ Joiner.on(",").join(changedIds) + ")";
try (Statement stmt = getConn().createStatement(); ResultSet rs = stmt.executeQuery(contentsSql)) {
try (Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(contentsSql)) {
while (rs.next()) {
ConfigItem configItemNew = new ConfigItem();
configItemNew.setId(rs.getLong("id"));
@@ -188,64 +195,20 @@ public class ManagerRemoteConfigMonitor {
configItemNew.setModifiedTime(rs.getTimestamp("modified_time").getTime());
remoteInstanceConfigs.put(configItemNew.getName(), configItemNew);
changedInstanceConfig.put(configItemNew.getName(), configItemNew);
remoteInstanceMonitor.onModify(configItemNew);
}
res[0] = changedInstanceConfig.isEmpty() ? null : changedInstanceConfig;
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
}
Map<String, ConfigItem> removedInstanceConfig = new HashMap<>();
for (String name : remoteInstanceConfigs.keySet()) {
if (!remoteConfigStatus.containsKey(name)) {
// 删除
remoteInstanceConfigs.remove(name);
removedInstanceConfig.put(name, null);
}
}
res[1] = removedInstanceConfig.isEmpty() ? null : removedInstanceConfig;
if (res[0] == null && res[1] == null) {
return null;
} else {
return res;
}
}
/**
* 覆盖本地instance配置
*
* @param modifiedInstanceConfigs 有变更的配置项
*/
private void overrideLocalInstanceConfigs(Map<String, ConfigItem>[] modifiedInstanceConfigs) {
Map<String, ConfigItem> changedInstanceConfigs = modifiedInstanceConfigs[0];
if (changedInstanceConfigs != null) {
for (ConfigItem configItem : changedInstanceConfigs.values()) {
File instanceDir = new File(getConfPath() + configItem.getName());
if (!instanceDir.exists()) {
instanceDir.mkdirs();
}
try (FileWriter writer = new FileWriter(
getConfPath() + configItem.getName() + "/instance.properties")) {
writer.write(configItem.getContent());
writer.flush();
logger.info("## Loaded remote instance config: {}/instance.properties ", configItem.getName());
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
}
Map<String, ConfigItem> removedInstanceConfigs = modifiedInstanceConfigs[1];
if (removedInstanceConfigs != null) {
for (String name : removedInstanceConfigs.keySet()) {
File file = new File(getConfPath() + name + "/");
if (file.exists()) {
deleteDir(file);
logger.info("## Deleted and loaded remote instance config: {} ", name);
}
remoteInstanceMonitor.onDelete(name);
}
}
}
@@ -273,9 +236,9 @@ public class ManagerRemoteConfigMonitor {
/**
* 监听 canal 主配置和 instance 配置变化
*
* @param listener 监听回调方法
* @param remoteCanalConfigMonitor 监听回调方法
*/
public void start(final Listener<Properties> listener) {
public void startMonitor(final RemoteCanalConfigMonitor remoteCanalConfigMonitor) {
// 监听canal.properties变化
executor.scheduleWithFixedDelay(new Runnable() {
@@ -283,10 +246,10 @@ public class ManagerRemoteConfigMonitor {
try {
Properties properties = loadRemoteConfig();
if (properties != null) {
listener.onChange(properties);
remoteCanalConfigMonitor.onChange(properties);
}
} catch (Throwable e) {
logger.error("scan failed", e);
logger.error("Scan remote canal config failed", e);
}
}
@@ -299,7 +262,7 @@ public class ManagerRemoteConfigMonitor {
try {
loadRemoteInstanceConfigs();
} catch (Throwable e) {
logger.error("scan failed", e);
logger.error("Scan remote instance config failed", e);
}
}
@@ -311,12 +274,10 @@ public class ManagerRemoteConfigMonitor {
*/
public void destroy() {
executor.shutdownNow();
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
logger.error(e.getMessage(), e);
}
try {
dataSource.close();
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
@@ -336,50 +297,37 @@ public class ManagerRemoteConfigMonitor {
}
/**
* 配置对应对象
* 远程xxx/instance.properties配置监听器实现
*/
public static class ConfigItem {
private class RemoteInstanceMonitorImpl implements RemoteInstanceMonitor {
private Long id;
private String name;
private String content;
private long modifiedTime;
public Long getId() {
return id;
@Override
public void onAdd(ConfigItem configItem) {
this.onModify(configItem);
}
public void setId(Long id) {
this.id = id;
@Override
public void onModify(ConfigItem configItem) {
File instanceDir = new File(getConfPath() + configItem.getName());
if (!instanceDir.exists()) {
instanceDir.mkdirs();
}
try (FileWriter writer = new FileWriter(getConfPath() + configItem.getName() + "/instance.properties")) {
writer.write(configItem.getContent());
writer.flush();
logger.info("## Loaded remote instance config: {}/instance.properties ", configItem.getName());
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
public String getName() {
return name;
@Override
public void onDelete(String instanceName) {
File file = new File(getConfPath() + instanceName + "/");
if (file.exists()) {
deleteDir(file);
logger.info("## Deleted and loaded remote instance config: {} ", instanceName);
}
}
public void setName(String name) {
this.name = name;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public long getModifiedTime() {
return modifiedTime;
}
public void setModifiedTime(long modifiedTime) {
this.modifiedTime = modifiedTime;
}
}
public interface Listener<T> {
void onChange(T properties);
}
}

13
deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/remote/RemoteCanalConfigMonitor.java Normal file
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@@ -0,0 +1,13 @@
package com.alibaba.otter.canal.deployer.monitor.remote;
import java.util.Properties;
/**
* 远程canal.properties配置监听器接口
*
* @author rewerma 2019-01-25 下午05:20:16
* @version 1.0.0
*/
public interface RemoteCanalConfigMonitor {
void onChange(Properties properties);
}

36
deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/remote/RemoteConfigLoader.java Normal file
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@@ -0,0 +1,36 @@
package com.alibaba.otter.canal.deployer.monitor.remote;
import java.util.Properties;
/**
* 远程配置装载器接口
*
* @author rewerma 2019-01-25 下午05:20:16
* @version 1.0.0
*/
public interface RemoteConfigLoader {
/**
* 加载远程 canal.properties文件
*
* @return 远程配置的properties
*/
Properties loadRemoteConfig();
/**
* 加载远程的instance配置
*/
void loadRemoteInstanceConfigs();
/**
* 启动监听 canal 主配置和 instance 配置变化
*
* @param remoteCanalConfigMonitor 监听回调方法
*/
void startMonitor(final RemoteCanalConfigMonitor remoteCanalConfigMonitor);
/**
* 销毁
*/
void destroy();
}

35
deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/remote/RemoteConfigLoaderFactory.java Normal file
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@@ -0,0 +1,35 @@
package com.alibaba.otter.canal.deployer.monitor.remote;
import java.util.Properties;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 远程配置装载器工厂类
*
* @author rewerma 2019-01-25 下午05:20:16
* @version 1.0.0
*/
public class RemoteConfigLoaderFactory {
private static final Logger logger = LoggerFactory.getLogger(RemoteConfigLoaderFactory.class);
public static RemoteConfigLoader getRemoteConfigLoader(Properties localProperties) {
String jdbcUrl = localProperties.getProperty("canal.manager.jdbc.url");
if (!StringUtils.isEmpty(jdbcUrl)) {
logger.info("## load remote canal configurations");
// load remote config
String driverName = localProperties.getProperty("canal.manager.jdbc.driverName");
String jdbcUsername = localProperties.getProperty("canal.manager.jdbc.username");
String jdbcPassword = localProperties.getProperty("canal.manager.jdbc.password");
return new DbRemoteConfigLoader(driverName, jdbcUrl, jdbcUsername, jdbcPassword);
}
// 可扩展其它远程配置加载器
logger.info("## load local canal configurations");
return null;
}
}

31
deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor/remote/RemoteInstanceMonitor.java Normal file
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@@ -0,0 +1,31 @@
package com.alibaba.otter.canal.deployer.monitor.remote;
/**
* 远程xxx/instance.properties配置监听器接口
*
* @author rewerma 2019-01-25 下午05:20:16
* @version 1.0.0
*/
public interface RemoteInstanceMonitor {
/**
* 新增配置事件
*
* @param configItem 配置项
*/
void onAdd(ConfigItem configItem);
/**
* 修改配置事件
*
* @param configItem 配置项
*/
void onModify(ConfigItem configItem);
/**
* 删除配置事件
*
* @param instanceName 实例名
*/
void onDelete(String instanceName);
}