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implement basic omni instance construction

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金戟 2021-03-17 16:24:20 +08:00
parent 7857782125
commit fe7420c99a
4 changed files with 61 additions and 14 deletions
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5
testable-agent/src/main/java/com/alibaba/testable/agent/transformer/TestableClassTransformer.java
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@ -41,10 +41,9 @@ public class TestableClassTransformer implements ClassFileTransformer {
private static final String CLASS_NAME_MOCK = "Mock";
/**
* Just avoid spend time to scan those surely non-user classes Should keep these lists as tiny as possible
* Just avoid spend time to scan those surely non-user classes, should keep these lists as tiny as possible
*/
private final String[] BLACKLIST_PREFIXES = new String[] {"jdk/", "java/", "javax/", "sun/", "com/sun/",
"org/groovy", "org/apache/maven/", "com/alibaba/testable/", "junit/", "org/junit/", "org/testng/"};
private final String[] BLACKLIST_PREFIXES = new String[] { "sun/", "com/sun/" };
public MockClassParser mockClassParser = new MockClassParser();

11
testable-core/src/main/java/com/alibaba/testable/core/tool/OmniAccessor.java
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@ -96,7 +96,7 @@ public class OmniAccessor {
}
private static List<String> generateMemberIndex(String basePath, Class<?> clazz) {
List<Field> fields = getAllFields(clazz);
List<Field> fields = TypeUtil.getAllFields(clazz);
List<String> paths = new ArrayList<String>();
for (Field f : fields) {
if (!f.getName().startsWith(THIS_REF_PREFIX)) {
@ -108,15 +108,6 @@ public class OmniAccessor {
return paths;
}
private static List<Field> getAllFields(Class<?> clazz) {
Class<?> rawClass = clazz.isArray() ? clazz.getComponentType() : clazz;
List<Field> fields = new ArrayList<Field>(Arrays.asList(rawClass.getDeclaredFields()));
if (rawClass.getSuperclass() != null) {
fields.addAll(getAllFields(rawClass.getSuperclass()));
}
return fields;
}
private static String toPath(Field field) {
return field.getName() + BRACE_START + field.getType().getSimpleName() + BRACE_END;
}

42
testable-core/src/main/java/com/alibaba/testable/core/tool/OmniConstructor.java
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@ -1,12 +1,19 @@
package com.alibaba.testable.core.tool;
import com.alibaba.testable.core.model.Null;
import com.alibaba.testable.core.util.TypeUtil;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
/**
* @author flin
*/
public class OmniConstructor {
public static <T> T newInstance(Class<T> clazz) {
return null;
return newInstance(clazz, isJavaAgentEnabled(clazz));
}
public static <T> void appendInstance(Object target, Class<T> clazz) {
@ -17,4 +24,37 @@ public class OmniConstructor {
return;
}
private static boolean isJavaAgentEnabled(Class<?> clazz) {
try {
clazz.getDeclaredConstructor(Null.class);
} catch (NoSuchMethodException e) {
return false;
}
return true;
}
private static <T> T newInstance(Class<T> clazz, boolean withJavaAgent) {
try {
Constructor<?> constructor = withJavaAgent ?
clazz.getDeclaredConstructor(Null.class) : clazz.getDeclaredConstructor();
constructor.setAccessible(true);
Object ins = withJavaAgent ? constructor.newInstance(new Null()) : constructor.newInstance();
for (Field f : TypeUtil.getAllFields(clazz)) {
f.setAccessible(true);
if (!f.getType().isPrimitive()) {
f.set(ins, newInstance(f.getType(), withJavaAgent));
}
}
return (T)ins;
} catch (NoSuchMethodException e) {
return null;
} catch (IllegalAccessException e) {
return null;
} catch (InstantiationException e) {
return null;
} catch (InvocationTargetException e) {
return null;
}
}
}

17
testable-core/src/main/java/com/alibaba/testable/core/util/TypeUtil.java
View File

@ -3,6 +3,9 @@ package com.alibaba.testable.core.util;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* @author flin
@ -41,6 +44,20 @@ public class TypeUtil {
}
}
/**
* get all field from class and its parents
* @param clazz class contains fields
* @return all fields available
*/
public static List<Field> getAllFields(Class<?> clazz) {
Class<?> rawClass = clazz.isArray() ? clazz.getComponentType() : clazz;
List<Field> fields = new ArrayList<Field>(Arrays.asList(rawClass.getDeclaredFields()));
if (rawClass.getSuperclass() != null) {
fields.addAll(getAllFields(rawClass.getSuperclass()));
}
return fields;
}
/**
* get constructor by parameter matching
* @param clazz class to construct