dbproxy
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insanity
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e09757ce17
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.gitignore
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.gitignore
vendored
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@ -0,0 +1,85 @@
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# Created by .ignore support plugin (hsz.mobi)
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### JetBrains template
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# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
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# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
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### Maven template
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*.iml
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108
pom.xml
108
pom.xml
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@ -16,6 +16,114 @@
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<version>1.0.0-SNAPSHOT</version>
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<name>com.loafle.overflow_proxy_db</name>
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<properties>
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<grpc.version>1.2.0</grpc.version>
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<hibernate.version>4.3.10.Final</hibernate.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-netty</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-protobuf</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-stub</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-core</artifactId>
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<version>1.9.5</version>
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<scope>test</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager -->
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-entitymanager</artifactId>
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<version>5.2.10.Final</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
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<dependency>
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<groupId>org.postgresql</groupId>
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<artifactId>postgresql</artifactId>
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<version>9.4-1200-jdbc41</version>
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</dependency>
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<!--<!– https://mvnrepository.com/artifact/junit/junit –>-->
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<!--<dependency>-->
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<!--<groupId>junit</groupId>-->
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<!--<artifactId>junit</artifactId>-->
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<!--<version>4.4</version>-->
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<!--</dependency>-->
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<dependency>
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<groupId>org.codehaus.jackson</groupId>
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<artifactId>jackson-mapper-asl</artifactId>
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<version>1.9.13</version>
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</dependency>
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<dependency>
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<groupId>com.loafle</groupId>
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<artifactId>overflow_jpa_member_dao</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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</dependency>
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</dependencies>
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<build>
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<resources>
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<resource>
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<directory>src/main/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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<testResources>
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<testResource>
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<directory>src/test/resources</directory>
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<filtering>true</filtering>
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</testResource>
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</testResources>
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<extensions>
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<extension>
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<groupId>kr.motd.maven</groupId>
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<artifactId>os-maven-plugin</artifactId>
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<version>1.4.1.Final</version>
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</extension>
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</extensions>
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<plugins>
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<plugin>
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<groupId>org.xolstice.maven.plugins</groupId>
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<artifactId>protobuf-maven-plugin</artifactId>
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<version>0.5.0</version>
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<configuration>
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<protocArtifact>com.google.protobuf:protoc:3.2.0:exe:${os.detected.classifier}</protocArtifact>
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<pluginId>grpc-java</pluginId>
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<pluginArtifact>io.grpc:protoc-gen-grpc-java:${grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
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</configuration>
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<executions>
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<execution>
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<goals>
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<goal>compile</goal>
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<goal>compile-custom</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>
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@ -1,7 +0,0 @@
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package com.loafle;
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public class App {
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public static void main(String[] args) {
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System.out.println("Hello World!");
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}
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}
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152
src/main/java/com/loafle/overflow/proxy/db/DBProxy.java
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152
src/main/java/com/loafle/overflow/proxy/db/DBProxy.java
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@ -0,0 +1,152 @@
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package com.loafle.overflow.proxy.db;
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import com.loafle.overflow.db.api.DBGrpc;
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import com.loafle.overflow.db.api.DBInput;
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import com.loafle.overflow.db.api.DBOutput;
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import com.loafle.overflow.commons.dao.JPABaseDAO;
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import com.loafle.overflow.member.dao.JPAMemberDAO;
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import io.grpc.ServerBuilder;
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import org.codehaus.jackson.map.ObjectMapper;
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import java.io.IOException;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.logging.Logger;
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/**
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* Created by insanity on 17. 5. 23.
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*/
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public class DBProxy {
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private static final Logger logger = Logger.getLogger(DBProxy.class.getName());
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private io.grpc.Server server;
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private static Map<String, JPABaseDAO> daoMap = null;
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public DBProxy() {
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daoMap = new ConcurrentHashMap();
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JPAMemberDAO memberDao = new JPAMemberDAO();
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daoMap.put("member", memberDao);
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}
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public void start(int port) throws IOException {
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server = ServerBuilder.forPort(port)
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.addService(new ServiceImpl())
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.build()
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.start();
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logger.info("Server started, listening on " + port);
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Runtime.getRuntime().addShutdownHook(new Thread() {
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@Override
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public void run() {
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// Use stderr here since the logger may have been reset by its JVM shutdown hook.
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System.err.println("*** shutting down gRPC server since JVM is shutting down");
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DBProxy.this.stop();
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System.err.println("*** server shut down");
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}
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});
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}
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public void stop() {
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if (server != null) {
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server.shutdown();
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}
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}
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static class ServiceImpl extends DBGrpc.DBImplBase {
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@Override
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public void exec(DBInput request,
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io.grpc.stub.StreamObserver<com.loafle.overflow.db.api.DBOutput> responseObserver) {
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String targetDAO = request.getTargetDao();
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JPABaseDAO dao = daoMap.get(targetDAO);
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if(dao != null) {
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try {
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String jsonResult = doQuery(request, dao);
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DBOutput reply = DBOutput.newBuilder()
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.setResult(jsonResult)
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.build();
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responseObserver.onNext(reply);
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responseObserver.onCompleted();
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}catch(Exception e) {
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e.printStackTrace();
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responseObserver.onError(e);
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}
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}else {
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responseObserver.onError(new Exception("Not assigned DAO :" + targetDAO));
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}
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}
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private String doQuery(DBInput request, JPABaseDAO dao) throws Exception {
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String methodName = request.getMethod();
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Map<String, String> params = request.getParamsMap();
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ObjectMapper mapper = new ObjectMapper();
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List<Class> paramTypes = new ArrayList<Class>();
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List<Object> valueList = new ArrayList<Object>();
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for( String className : params.keySet() ){
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//className - model name(with package) , value - model JsonString
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Class<?> cls = Class.forName(className);
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Object obj = mapper.readValue((String)params.get(className), cls);
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valueList.add(obj);
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paramTypes.add(cls);
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}
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Object retObj = null;
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Method method = null;
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try {
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//Check if it belongs to the JPABaseDAO.
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method = dao.getClass().getSuperclass().getMethod(methodName, Object.class);
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if(method != null) {
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retObj = method.invoke(dao, valueList.toArray(new Object[valueList.size()]));
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}
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}catch(NoSuchMethodException e) {
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if(params.size() > 0) {
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method = dao.getClass().getMethod(methodName, paramTypes.toArray(new Class[paramTypes.size()]));
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retObj = method.invoke(dao, valueList.toArray(new Object[valueList.size()]));
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}else {
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method = dao.getClass().getMethod(methodName);
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retObj = method.invoke(dao);
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}
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}catch(InvocationTargetException e) {
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e.printStackTrace();
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}
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return mapper.writeValueAsString(retObj);
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}
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}
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private void blockUntilShutdown() throws InterruptedException {
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if (server != null) {
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server.awaitTermination();
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}
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}
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public static void main(String[] args) throws IOException, InterruptedException {
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if(args.length <= 0) {
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System.out.println("Port args");
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System.out.println("first parameter is Port Number");
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return;
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}
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int port = Integer.valueOf(args[0]);
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final DBProxy server = new DBProxy();
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server.start(port);
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server.blockUntilShutdown();
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}
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}
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17
src/main/resources/META-INF/persistence.xml
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17
src/main/resources/META-INF/persistence.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
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<persistence-unit name="overflow">
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<properties>
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<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://192.168.1.106:5432/postgres" />
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<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver" />
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<property name="javax.persistence.jdbc.user" value="vertx" />
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<property name="javax.persistence.jdbc.password" value="qwe123" />
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<!--<property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" />-->
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<property name="hibernate.hbm2ddl.auto" value="create"/>
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<property name="hibernate.show_sql" value="true" />
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</properties>
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</persistence-unit>
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</persistence>
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@ -1,11 +0,0 @@
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package com.loafle;
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import static org.junit.Assert.*;
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import org.junit.Test;
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public class AppTest {
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@Test
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public void testSum() {
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fail("Not yet implemented");
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}
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}
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85
src/test/java/com/loafle/TestClient.java
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85
src/test/java/com/loafle/TestClient.java
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package com.loafle;
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import com.loafle.overflow.db.api.DBGrpc;
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import com.loafle.overflow.db.api.DBInput;
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import com.loafle.overflow.db.api.DBOutput;
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import com.loafle.overflow.member.model.Member;
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import io.grpc.ManagedChannel;
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import io.grpc.ManagedChannelBuilder;
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import io.grpc.StatusRuntimeException;
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import org.codehaus.jackson.map.ObjectMapper;
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import org.junit.Ignore;
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import org.junit.Test;
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import java.util.concurrent.TimeUnit;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class TestClient {
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private static final Logger logger = Logger.getLogger(TestClient.class.getName());
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private final ManagedChannel channel;
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private final DBGrpc.DBBlockingStub dbStub;
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public TestClient() {
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channel = ManagedChannelBuilder.forAddress("127.0.0.1", 50006).usePlaintext(true).build();
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dbStub = DBGrpc.newBlockingStub(channel);
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}
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public void shutdown() throws InterruptedException {
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channel.shutdown().awaitTermination(5, TimeUnit.SECONDS);
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}
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public void execute() {
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try {
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Member m = new Member();
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m.setName("insanity2222");
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m.setCompany("loafle");
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m.setDigest("bbbbbbbbb");
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m.setPwSalt("salktttt");
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m.setEmail("insanity@loafle.com");
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m.setRegistDate(111110);
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ObjectMapper mapper = new ObjectMapper();
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DBInput request = DBInput.newBuilder()
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.setTargetDao("member")
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.setMethod("create")
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.putParams("com.loafle.overflow.member.model.Member", mapper.writeValueAsString(m))
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//.putParams("com.loafle.overflow.member.Member2", mapper.writeValueAsString(m2))
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.build();
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DBOutput response;
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try {
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response = dbStub.exec(request);
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} catch (StatusRuntimeException e) {
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logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus());
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return;
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}
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logger.log(Level.INFO, response.getResult());
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}catch(Exception e) {
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e.printStackTrace();
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}
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}
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@Test
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public void testRPCServer() {
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TestClient client = new TestClient();
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try {
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client.execute();
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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client.shutdown();
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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||||
}
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||||
}
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||||
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