Java Method Call invokeServiceClass(JsonReader jsonReader, Object service, Method operation, Class[] paramClasses, int paramCount)

Description

invoke Service Class

License

Apache License

Declaration

public static Object invokeServiceClass(JsonReader jsonReader, Object service, Method operation,
            Class[] paramClasses, int paramCount)
            throws InvocationTargetException, IllegalAccessException, IOException 

Method Source Code

//package com.java2s;
/*//from w ww.  j  a  va2s  .  com
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import com.google.gson.Gson;
import com.google.gson.stream.JsonReader;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static Object invokeServiceClass(JsonReader jsonReader, Object service, Method operation,
            Class[] paramClasses, int paramCount)
            throws InvocationTargetException, IllegalAccessException, IOException {

        Object[] methodParam = new Object[paramCount];
        Gson gson = new Gson();
        String[] argNames = new String[paramCount];

        if (!jsonReader.isLenient()) {
            jsonReader.setLenient(true);
        }
        jsonReader.beginObject();
        jsonReader.nextName(); // get message name from input json stream
        jsonReader.beginArray();

        int i = 0;
        for (Class paramType : paramClasses) {
            jsonReader.beginObject();
            argNames[i] = jsonReader.nextName();
            methodParam[i] = gson.fromJson(jsonReader, paramType); // gson handle all types well and return an object from it
            jsonReader.endObject();
            i++;
        }

        jsonReader.endArray();
        jsonReader.endObject();

        return operation.invoke(service, methodParam);

    }
}

Related

1. invokeQuietly(Object target, Method method, Object[] params)
2. invokeReadResolveOn(Object object, Class clz)
3. invokeReal(Object real, Method m, Object[] args)
4. invokeRemoteMBeanOperation(String remoteURL, String jmxName, Class klass, Function function)
5. invokeRestrictedMethod(Object obj, Class theClass, String methodName)
6. invokeSet(Object o, String fieldName, Object value)
7. invokeSetFieldValue(Object bean, Field field, Object value)
8. invokeSilent(Object obj, String methodName, Class[] parameterTypes, Object[] args)
9. invokeSimple(Object target, String name)