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com.therouter.plugin.TheRouterInjects.groovy Maven / Gradle / Ivy
package com.therouter.plugin
import com.google.gson.Gson
import org.apache.commons.io.IOUtils
import org.objectweb.asm.ClassReader
import org.objectweb.asm.ClassWriter
import org.objectweb.asm.tree.ClassNode
import org.objectweb.asm.tree.FieldNode
import java.util.jar.JarEntry
import java.util.jar.JarFile
import java.util.jar.JarOutputStream
import java.util.zip.ZipEntry
/**
* Created by ZhangTao on 18/2/24.
*/
class TheRouterInjects {
private static Map serviceProvideMap = new HashMap<>()
private static Set autowiredSet = new HashSet<>()
private static Set routeSet = new HashSet<>()
private static final Gson gson = new Gson()
private static final PREFIX_SERVICE_PROVIDER = "ServiceProvider__TheRouter__"
private static final PREFIX_ROUTER_MAP = "RouterMap__TheRouter__"
private static final SUFFIX_AUTOWIRED_DOT_CLASS = "__TheRouter__Autowired.class"
private static final FIELD_FLOW_TASK_JSON = "FLOW_TASK_JSON"
private static final FIELD_APT_VERSION = "THEROUTER_APT_VERSION"
private static final FIELD_ROUTER_MAP = "ROUTERMAP"
private static final UNKNOWN_VERSION = "unspecified"
private static final NOT_FOUND_VERSION = "0.0.0"
private static final DOT_CLASS = ".class"
/**
* 标记当前jar中是否有要处理的类，生成类总共三种：RouterMap、ServiceProvider、Autowired
* @param jarFile
* @return
*/
public static JarInfo tagJar(File jarFile) {
JarInfo jarInfo = new JarInfo()
if (jarFile) {
def file = new JarFile(jarFile)
Enumeration enumeration = file.entries()
while (enumeration.hasMoreElements()) {
JarEntry jarEntry = (JarEntry) enumeration.nextElement()
jarInfo.allJarClass.add(jarEntry.name.replaceAll("/", "."))
if (jarEntry.name.contains(PREFIX_SERVICE_PROVIDER)) {
int start = jarEntry.name.indexOf(PREFIX_SERVICE_PROVIDER)
int end = jarEntry.name.length() - DOT_CLASS.length()
String className = jarEntry.name.substring(start, end)
.replace('\\', '.')
.replace('/', '.')
if (className.indexOf('$') <= 0) { // 只处理非内部类
InputStream inputStream = file.getInputStream(jarEntry)
ClassReader reader = new ClassReader(inputStream)
ClassNode cn = new ClassNode()
reader.accept(cn, 0)
List fieldList = cn.fields
String aptVersion = NOT_FOUND_VERSION
for (FieldNode fieldNode : fieldList) {
if (FIELD_FLOW_TASK_JSON == fieldNode.name) {
println("---------TheRouter in jar get flow task json from: ${jarEntry.name}-------------------------------")
Map map = gson.fromJson(fieldNode.value, HashMap.class);
jarInfo.flowTaskMapFromJar.putAll(map)
} else if (FIELD_APT_VERSION == fieldNode.name) {
aptVersion = fieldNode.value
}
}
if (!serviceProvideMap.containsKey(className) || aptVersion != NOT_FOUND_VERSION) {
serviceProvideMap.put(className, aptVersion)
}
}
} else if (jarEntry.name.contains(SUFFIX_AUTOWIRED_DOT_CLASS)) {
String className = jarEntry.name
.replace(DOT_CLASS, "")
.replace('\\', '.')
.replace('/', '.')
autowiredSet.add(className)
} else if (jarEntry.name.contains("TheRouterServiceProvideInjecter")) {
jarInfo.isTheRouterJar = true
} else if (jarEntry.name.contains(PREFIX_ROUTER_MAP)) {
routeSet.add(jarEntry.name)
InputStream inputStream = file.getInputStream(jarEntry)
ClassReader reader = new ClassReader(inputStream)
ClassNode cn = new ClassNode()
reader.accept(cn, 0)
List fieldList = cn.fields
for (FieldNode fieldNode : fieldList) {
if (FIELD_ROUTER_MAP == fieldNode.name) {
println("---------TheRouter in jar get route map from: ${jarEntry.name}-------------------------------")
jarInfo.routeMapStringFromJar.add(fieldNode.value)
}
}
}
}
}
return jarInfo
}
public static SourceInfo tagClass(String path) {
SourceInfo sourceInfo = new SourceInfo();
File dir = new File(path)
if (dir.isDirectory()) {
dir.eachFileRecurse {
sourceInfo.allSourceClass.add(it.absolutePath.replace(File.separator, "."))
if (it.absolutePath.contains(PREFIX_SERVICE_PROVIDER)) {
int start = it.absolutePath.indexOf(PREFIX_SERVICE_PROVIDER)
int end = it.absolutePath.length() - DOT_CLASS.length()
String className = it.absolutePath.substring(start, end)
.replace(File.separator, ".")
if (className.indexOf('$') > 0) {
className = className.substring(0, className.indexOf('$'))
}
FileInputStream inputStream = new FileInputStream(it)
ClassReader reader = new ClassReader(inputStream)
ClassNode cn = new ClassNode()
reader.accept(cn, 0)
List fieldList = cn.fields
String aptVersion = NOT_FOUND_VERSION
for (FieldNode fieldNode : fieldList) {
if (FIELD_FLOW_TASK_JSON == fieldNode.name) {
println("---------TheRouter in source get flow task json from: ${it.name}-------------------------------")
Map map = gson.fromJson(fieldNode.value, HashMap.class);
sourceInfo.flowTaskMapFromSource.putAll(map)
} else if (FIELD_APT_VERSION == fieldNode.name) {
aptVersion = fieldNode.value
}
}
if (!serviceProvideMap.containsKey(className) || aptVersion != NOT_FOUND_VERSION) {
serviceProvideMap.put(className, aptVersion)
}
} else if (it.absolutePath.contains(SUFFIX_AUTOWIRED_DOT_CLASS)) {
String className = it.absolutePath
.replace(path, "")
.replace(DOT_CLASS, "")
.replace(File.separator, ".")
.replace("classes.", "")
if (className.startsWith(".")) {
className = className.substring(1)
}
autowiredSet.add(className)
} else if (it.absolutePath.contains(PREFIX_ROUTER_MAP)) {
int start = it.absolutePath.indexOf(PREFIX_ROUTER_MAP)
int end = it.absolutePath.length() - DOT_CLASS.length()
String className = it.absolutePath.substring(start, end)
.replace(File.separator, ".")
// 因为absolutePath过滤的时候是直接以类名过滤，就把包名去掉了
// 包名一定是a，所以这里补回来
routeSet.add("a/" + className)
FileInputStream inputStream = new FileInputStream(it)
ClassReader reader = new ClassReader(inputStream)
ClassNode cn = new ClassNode();
reader.accept(cn, 0);
List fieldList = cn.fields;
for (FieldNode fieldNode : fieldList) {
if (FIELD_ROUTER_MAP == fieldNode.name) {
println("---------TheRouter in source get route map from: ${it.name}-------------------------------")
sourceInfo.routeMapStringFromSource.add(fieldNode.value)
}
}
}
}
}
return sourceInfo
}
/**
* 开始修改 TheRouterServiceProvideInjecter 类
*/
static void injectClassCode(File inputJarFile, boolean isIncremental) {
long start = System.currentTimeMillis()
def optJarFile = new File(inputJarFile.getParent(), inputJarFile.name + ".opt")
def inputJar = new JarFile(inputJarFile)
Enumeration enumeration = inputJar.entries()
JarOutputStream jarOutputStream = new JarOutputStream(new FileOutputStream(optJarFile))
while (enumeration.hasMoreElements()) {
JarEntry jarEntry = (JarEntry) enumeration.nextElement();
String entryName = jarEntry.getName()
ZipEntry zipEntry = new ZipEntry(entryName)
jarOutputStream.putNextEntry(zipEntry)
InputStream inputStream = inputJar.getInputStream(jarEntry)
byte[] bytes
if (entryName.contains("TheRouterServiceProvideInjecter")) {
ClassReader cr = new ClassReader(inputStream)
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES)
AddCodeVisitor cv = new AddCodeVisitor(cw, serviceProvideMap, autowiredSet, routeSet, isIncremental)
cr.accept(cv, ClassReader.SKIP_DEBUG)
bytes = cw.toByteArray()
} else {
bytes = IOUtils.toByteArray(inputStream)
}
jarOutputStream.write(bytes)
jarOutputStream.closeEntry()
}
jarOutputStream.close()
inputJar.close()
inputJarFile.delete()
optJarFile.renameTo(inputJarFile)
optJarFile.delete()
long time = System.currentTimeMillis() - start
println("---------TheRouter inject TheRouterServiceProvideInjecter.class, spend：${time}ms----------------------")
}
}
