83 lines
3.0 KiB
Swift
83 lines
3.0 KiB
Swift
//
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// JNIObject_JavaCoder.swift
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// SmartMailCoreBridge
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//
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// Created by Andrew on 11/14/17.
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//
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import Foundation
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import java_swift
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public class JNIObjectWithClass: JNIObject {
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var privateClassName: String!
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public required init(javaObject: jobject?) {
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super.init(javaObject: javaObject)
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privateClassName = JNIObject.getJavaClassname(javaObject: self.javaObject)
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}
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public required init(javaObject: jobject?, className: String) {
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super.init(javaObject: javaObject)
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self.privateClassName = className
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}
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}
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public extension JNIObject {
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static func getJavaClassname(javaObject: jobject?) -> String {
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let cls = JNI.api.GetObjectClass(JNI.env, javaObject)
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let javaClassName = JNI.api.CallObjectMethodA(JNI.env, cls, ClassGetNameMethod, nil)
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return String(javaObject: javaClassName).replacingOccurrences(of: ".", with: "/")
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}
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var className: String {
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if let jniObject = self as? JNIObjectWithClass {
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return jniObject.privateClassName
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}
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return JNIObject.getJavaClassname(javaObject: self.javaObject)
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}
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func callVoidMethod(_ methodID: jmethodID, _ args: JNIArgumentProtocol...) {
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checkArgumentAndWrap(args: args, { argsPtr in
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JNI.api.CallVoidMethodA(JNI.env, javaObject, methodID, argsPtr)
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})
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}
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func callStringMethod(method: String? = nil, functionName: String = #function, _ args: JNIArgumentProtocol...) -> String {
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let methodName = method ?? String(functionName.split(separator: "(")[0])
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return String(javaObject: self.internalcallObjectMethod(method: methodName, returnType: "Ljava/lang/String;", args))
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}
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func callObjectMethod(method: String? = nil, functionName: String = #function, returnType: String, _ args: JNIArgumentProtocol...) -> jobject? {
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let methodName = method ?? String(functionName.split(separator: "(")[0])
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return self.internalcallObjectMethod(method: methodName, returnType: returnType, args)
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}
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private func internalcallObjectMethod(method: String, returnType: String, _ args: [JNIArgumentProtocol]) -> jobject? {
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let sig = "(\(args.map({ $0.sig() }).joined()))\(returnType)"
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let methodID = try! JNI.getJavaMethod(forClass: self.className, method: method, sig: sig)
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return checkArgumentAndWrap(args: args, { argsPtr in
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return JNI.api.CallObjectMethodA(JNI.env, javaObject, methodID, argsPtr)
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})
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}
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private func checkArgumentAndWrap<Result>(args: [JNIArgumentProtocol], _ block: (_ argsPtr: UnsafePointer<jvalue>?) -> Result) -> Result {
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if args.count > 0 {
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var locals = [jobject]()
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var argsValues = args.map({ $0.value(locals: &locals) })
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return withUnsafePointer(to: &argsValues[0]) { argsPtr in
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defer {
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_ = JNI.check(Void.self, &locals)
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}
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return block(argsPtr)
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}
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}
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else {
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return block(nil)
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}
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}
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}
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