Solve the bug that the contract plug-in file cannot be deleted！

source/gateway/src/main/java/com/jd/blockchain/gateway/service/GatewayInterceptServiceHandler.java

@@ -5,15 +5,26 @@ import com.jd.blockchain.gateway.PeerService;
 import com.jd.blockchain.ledger.ContractCodeDeployOperation;
 import com.jd.blockchain.ledger.Operation;
 import com.jd.blockchain.ledger.TransactionRequest;
+import org.apache.commons.io.FileUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.util.ResourceUtils;
+
+import java.io.File;
+import java.net.URL;
 
 @Service
 public class GatewayInterceptServiceHandler implements GatewayInterceptService {
 
+    private static String contractsPath;
+
     @Autowired
     private PeerService peerService;
 
+    static {
+        contractsPath = jarRootDir();
+    }
+
     @Override
     public void intercept(TransactionRequest txRequest) {
         // 当前仅处理合约发布的请求
@@ -29,7 +40,34 @@ public class GatewayInterceptServiceHandler implements GatewayInterceptService {
     }
 
     private void contractCheck(final ContractCodeDeployOperation contractOP) {
+
         // 校验chainCode
         ContractJarUtils.verify(contractOP.getChainCode());
     }
+
+    private static String jarRootDir() {
+
+        try {
+            URL url = GatewayInterceptServiceHandler.class.getProtectionDomain().getCodeSource().getLocation();
+            String currPath = java.net.URLDecoder.decode(url.getPath(), "UTF-8");
+            if (currPath.contains("!/")) {
+                currPath = currPath.substring(5, currPath.indexOf("!/"));
+            }
+            if (currPath.endsWith(".jar")) {
+                currPath = currPath.substring(0, currPath.lastIndexOf("/") + 1);
+            }
+            File file = new File(currPath);
+
+            String homeDir = file.getParent();
+
+            String jarRootPath = homeDir + File.separator + "contracts";
+
+            FileUtils.forceMkdir(new File(jarRootPath));
+
+            return jarRootPath;
+
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
 }

source/ledger/ledger-model/src/main/java/com/jd/blockchain/contract/ContractJarUtils.java

@@ -110,16 +110,16 @@ public class ContractJarUtils {
         return dotClassName;
     }
 
-    public static void verify(byte[] chainCode) {
+    public static void verify(String contractPath, byte[] chainCode) {
         if (chainCode == null || chainCode.length == 0) {
             throw new IllegalStateException("Contract's chaincode is empty !!!");
         }
         // 首先生成合约文件
-        File jarFile = newJarFile();
+        File jarFile = newJarFile(contractPath);
         try {
             FileUtils.writeByteArrayToFile(jarFile, chainCode);
             // 校验合约文件
-            verify(jarFile);
+            verify(contractPath, jarFile);
         } catch (Exception e) {
             throw new IllegalStateException(e);
         } finally {
@@ -132,7 +132,11 @@ public class ContractJarUtils {
         }
     }
 
-    private static void verify(File jarFile) throws Exception {
+    public static void verify(byte[] chainCode) {
+        verify(null, chainCode);
+    }
+
+    private static void verify(String contractPath, File jarFile) throws Exception {
         // 首先判断jarFile中是否含有META-INF/JDCHAIN.TXT，并将其读出
         URL jarUrl = new URL("jar:file:" + jarFile.getPath() + "!/" + CONTRACT_MF);
         InputStream inputStream = jarUrl.openStream();
@@ -152,7 +156,7 @@ public class ContractJarUtils {
         String txt = new String(bytes, StandardCharsets.UTF_8);
 
         // 生成新的Jar包文件，该文件路径与JarFile基本一致
-        File tempJar = newJarFile();
+        File tempJar = newJarFile(contractPath);
 
         // 复制除JDCHAIN.TXT之外的部分
         copy(jarFile, tempJar, null, null, CONTRACT_MF);
@@ -223,7 +227,16 @@ public class ContractJarUtils {
         }
     }
 
-    private static File newJarFile() {
+    private static File newJarFile(String contractPath) {
+
+        if (contractPath != null && contractPath.length() > 0) {
+            return new File(contractPath + File.separator +
+                    "contract-" +
+                    System.currentTimeMillis() + "-" +
+                    System.nanoTime() + "-" +
+                    FILE_RANDOM.nextInt(1024) +
+                    ".jar");
+        }
         return new File("contract-" +
                 System.currentTimeMillis() + "-" +
                 System.nanoTime() + "-" +