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add arthas-grpc-services, support ObjectService #2698

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145 changes: 145 additions & 0 deletions arthas-grpc-services/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>arthas-all</artifactId>
<groupId>com.taobao.arthas</groupId>
<version>${revision}</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>arthas-grpc-services</artifactId>
<name>arthas-grpc-services</name>
<url>https://github.com/alibaba/arthas</url>
<properties>
<java.version>1.8</java.version>
<grpc.version>1.46.0</grpc.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-bom</artifactId>
<version>${grpc.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>


<dependencies>
<dependency>
<groupId>com.taobao.arthas</groupId>
<artifactId>arthas-common</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.taobao.arthas</groupId>
<artifactId>arthas-vmtool</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-codec-http</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.arthas</groupId>
<artifactId>arthas-repackage-logger</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-services</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
<scope>provided</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>4.5.2</version>
<scope>test</scope>
</dependency>
</dependencies>

<profiles>
<profile>
<id>mac</id>
<activation>
<os>
<family>mac</family>
</os>
</activation>
<properties>
<os.detected.classifier>osx-x86_64</os.detected.classifier>
</properties>
</profile>
</profiles>
<build>
<finalName>${project.artifactId}</finalName>
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>1.6.2</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>0.6.1</version>
<configuration>
<protoSourceRoot>${basedir}/src/main/proto</protoSourceRoot>
<protocArtifact>com.google.protobuf:protoc:3.11.0:exe:${os.detected.classifier}</protocArtifact>
<pluginId>grpc-java</pluginId>
<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.28.0:exe:${os.detected.classifier}</pluginArtifact>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>compile-custom</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>


</project>
198 changes: 198 additions & 0 deletions arthas-grpc-services/src/main/java/io/arthas/services/JavaObjectConverter.java
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package io.arthas.services;


import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import io.arthas.api.ArthasServices.ArrayElement;
import io.arthas.api.ArthasServices.ArrayValue;
import io.arthas.api.ArthasServices.BasicValue;
import io.arthas.api.ArthasServices.CollectionValue;
import io.arthas.api.ArthasServices.CollectionValue.Builder;
import io.arthas.api.ArthasServices.JavaField;
import io.arthas.api.ArthasServices.JavaFields;
import io.arthas.api.ArthasServices.JavaObject;
import io.arthas.api.ArthasServices.MapEntry;
import io.arthas.api.ArthasServices.MapValue;
import io.arthas.api.ArthasServices.NullValue;
import io.arthas.api.ArthasServices.UnexpandedObject;



public class JavaObjectConverter {
private static final int MAX_DEPTH = 5;

public static JavaObject toJavaObject(Object obj) {
return toJavaObject(obj, 0);
}

public static JavaObject toJavaObject(Object obj, int depth) {
if (depth >= MAX_DEPTH) {
return null;
}

if (obj == null) {
return JavaObject.newBuilder().setNullValue(NullValue.getDefaultInstance()).build();
}

JavaObject.Builder objectBuilder = JavaObject.newBuilder();
Class<? extends Object> objClazz = obj.getClass();
objectBuilder.setClassName(objClazz.getName());

// 基础类型
if (isBasicType(objClazz)) {
return objectBuilder.setBasicValue(createBasicValue(obj)).build();
} else if (obj instanceof Collection) { // 集合
return objectBuilder.setCollection(createCollectionValue((Collection<?>) obj, depth)).build();
} else if (obj instanceof Map) { // map
return objectBuilder.setMap(createMapValue((Map<?, ?>) obj, depth)).build();
} else if (objClazz.isArray()) {
return objectBuilder.setArrayValue(toArrayValue(obj, depth)).build();
}

Field[] fields = objClazz.getDeclaredFields();
List<JavaField> javaFields = new ArrayList<>();

for (Field field : fields) {
field.setAccessible(true);
JavaField.Builder fieldBuilder = JavaField.newBuilder();
fieldBuilder.setName(field.getName());

try {
Object fieldValue = field.get(obj);
Class<?> fieldType = field.getType();

if (fieldValue == null) {
fieldBuilder.setNullValue(NullValue.newBuilder().setClassName(fieldType.getName()).build());
} else if (fieldType.isArray()) {
ArrayValue arrayValue = toArrayValue(fieldValue, depth + 1);
if (arrayValue != null) {
fieldBuilder.setArrayValue(arrayValue);
} else {
fieldBuilder.setUnexpandedObject(
UnexpandedObject.newBuilder().setClassName(fieldType.getName()).build());
}
} else if (fieldType.isPrimitive() || isBasicType(fieldType)) {
BasicValue basicValue = createBasicValue(fieldValue);
fieldBuilder.setBasicValue(basicValue);
} else if (fieldValue instanceof Collection) { // 集合
fieldBuilder.setCollection(createCollectionValue((Collection<?>) fieldValue, depth));
} else if (fieldValue instanceof Map) { // map
fieldBuilder.setMap(createMapValue((Map<?, ?>) fieldValue, depth));
} else {
JavaObject nestedObject = toJavaObject(fieldValue, depth + 1);
if (nestedObject != null) {
fieldBuilder.setObjectValue(nestedObject);
} else {
fieldBuilder.setUnexpandedObject(
UnexpandedObject.newBuilder().setClassName(fieldType.getName()).build());
}
}
} catch (IllegalAccessException e) {
// TODO ignore ?
}
javaFields.add(fieldBuilder.build());
}

objectBuilder.setFields(JavaFields.newBuilder().addAllFields(javaFields).build());
return objectBuilder.build();
}

private static ArrayValue toArrayValue(Object array, int depth) {
if (array == null || depth >= MAX_DEPTH) {
return null;
}

ArrayValue.Builder arrayBuilder = ArrayValue.newBuilder();
Class<?> componentType = array.getClass().getComponentType();

arrayBuilder.setClassName(componentType.getName());

int length = Array.getLength(array);
for (int i = 0; i < length; i++) {
Object element = Array.get(array, i);

if (element != null) {
if (componentType.isArray()) {
ArrayValue nestedArrayValue = toArrayValue(element, depth + 1);
if (nestedArrayValue == null) {
arrayBuilder.addElements(ArrayElement.newBuilder().setArrayValue(nestedArrayValue));
} else {
arrayBuilder.addElements(ArrayElement.newBuilder().setUnexpandedObject(
UnexpandedObject.newBuilder().setClassName(element.getClass().getName()).build()));
}

} else if (componentType.isPrimitive() || isBasicType(componentType)) {
BasicValue basicValue = createBasicValue(element);
arrayBuilder.addElements(ArrayElement.newBuilder().setBasicValue(basicValue));
} else {
JavaObject nestedObject = toJavaObject(element, depth + 1);
if (nestedObject != null) {
arrayBuilder.addElements(ArrayElement.newBuilder().setObjectValue(nestedObject));
} else {
arrayBuilder.addElements(ArrayElement.newBuilder().setUnexpandedObject(
UnexpandedObject.newBuilder().setClassName(element.getClass().getName()).build()));
}

}
} else {
arrayBuilder.addElements(ArrayElement.newBuilder()
.setNullValue(NullValue.newBuilder().setClassName(componentType.getName()).build()));
}
}

return arrayBuilder.build();
}

private static MapValue createMapValue(Map<?, ?> map, int depth) {
MapValue.Builder builder = MapValue.newBuilder();

for (Entry<?, ?> entry : map.entrySet()) {
MapEntry mapEntry = MapEntry.newBuilder().setKey(toJavaObject(entry.getKey(), depth))
.setValue(toJavaObject(entry.getValue(), depth)).build();
builder.addEntries(mapEntry);
}
return builder.build();
}

private static CollectionValue createCollectionValue(Collection<?> collection, int depth) {
Builder builder = CollectionValue.newBuilder();
for (Object o : collection) {
builder.addElements(toJavaObject(o, depth));
}
return builder.build();
}

private static BasicValue createBasicValue(Object value) {
BasicValue.Builder builder = BasicValue.newBuilder();

if (value instanceof Integer) {
builder.setInt((int) value);
} else if (value instanceof Long) {
builder.setLong((long) value);
} else if (value instanceof Float) {
builder.setFloat((float) value);
} else if (value instanceof Double) {
builder.setDouble((double) value);
} else if (value instanceof Boolean) {
builder.setBoolean((boolean) value);
} else if (value instanceof String) {
builder.setString((String) value);
}

return builder.build();
}

private static boolean isBasicType(Class<?> clazz) {
if (String.class.equals(clazz) || Integer.class.equals(clazz) || Long.class.equals(clazz)
|| Float.class.equals(clazz) || Double.class.equals(clazz) || Boolean.class.equals(clazz)) {
return true;
}
return false;
}
}
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