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Venice, a Lisp implemented in Java
There is a newer version: 1.12.35
/*   __    __         _
 *   \ \  / /__ _ __ (_) ___ ___
 *    \ \/ / _ \ '_ \| |/ __/ _ \
 *     \  /  __/ | | | | (_|  __/
 *      \/ \___|_| |_|_|\___\___|
 *
 *
 * Copyright 2017-2024 Venice
 *
 * Licensed 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.
 */
package com.github.jlangch.venice.javainterop;

import com.github.jlangch.venice.SecurityException;
import com.github.jlangch.venice.impl.util.StringUtil;
import com.github.jlangch.venice.impl.util.io.ClassPathResource;


public abstract class Interceptor implements IInterceptor {

    public Interceptor(final ILoadPaths loadPaths) {
        this.loadPaths = loadPaths == null
                            ? LoadPathsFactory.rejectAll()
                            : loadPaths;
    }

    @Override
    public ReturnValue onInvokeInstanceMethod(
            final IInvoker invoker,
            final Object receiver,
            final Class receiverFormalType,
            final String method,
            final Object... args
    ) throws SecurityException {
        return invoker.callInstanceMethod(receiver, receiverFormalType, method, args);
    }

    @Override
    public ReturnValue onInvokeStaticMethod(
            final IInvoker invoker,
            final Class receiver,
            final String method,
            final Object... args
    ) throws SecurityException {
        return invoker.callStaticMethod(receiver, method, args);
    }

    @Override
    public ReturnValue onInvokeConstructor(
            final IInvoker invoker,
            final Class receiver,
            final Object... args
    ) throws SecurityException {
        return invoker.callConstructor(receiver, args);
    }

    @Override
    public ReturnValue onGetBeanProperty(
            final IInvoker invoker,
            final Object receiver,
            final String property
    ) throws SecurityException {
        return invoker.getBeanProperty(receiver, property);
    }

    @Override
    public void onSetBeanProperty(
            final IInvoker invoker,
            final Object receiver,
            final String property,
            final Object value
    ) throws SecurityException {
        invoker.setBeanProperty(receiver, property, value);
    }

    @Override
    public ReturnValue onGetStaticField(
            final IInvoker invoker,
            final Class receiver,
            final String fieldName
    ) throws SecurityException {
        return invoker.getStaticField(receiver, fieldName);
    }

    @Override
    public ReturnValue onGetInstanceField(
            final IInvoker invoker,
            final Object receiver,
            final Class receiverFormalType,
            final String fieldName
    ) throws SecurityException {
        return invoker.getInstanceField(receiver, receiverFormalType, fieldName);
    }

    @Override
    public byte[] onLoadClassPathResource(
            final String resourceName
    ) throws SecurityException {
        return StringUtil.isBlank(resourceName)
                    ? null
                    : new ClassPathResource(resourceName).getResourceAsBinary();
    }

    @Override
    public String onReadSystemProperty(
            final String propertyName
    ) throws SecurityException {
        return StringUtil.isBlank(propertyName)
                ? null
                : System.getProperty(propertyName);
    }

    @Override
    public String onReadSystemEnv(
            final String name
    ) throws SecurityException {
        return StringUtil.isBlank(name)
                ? null
                : System.getenv(name);
    }

    @Override
    public IInterceptor validateVeniceFunction(
            final String funcName
    ) throws SecurityException {
        // ok, no black listed Venice functions
    	return this;
    }


    @Override
    public IInterceptor validateLoadModule(
            final String moduleName
    ) throws SecurityException {
        // ok, no black listed Venice module
    	return this;
    }

    @Override
    public IInterceptor validateMaxExecutionTime() throws SecurityException {
    	//ok
    	return this;
    }

    @Override
    public Integer getMaxExecutionTimeSeconds() {
        return null;
    }

    @Override
    public Integer getMaxFutureThreadPoolSize() {
        return null;
    }

    @Override
    public ILoadPaths getLoadPaths() {
        return loadPaths;
    }


    private final ILoadPaths loadPaths;
}