# DefaultStreamInterceptor.java

    /*
     * Copyright (c) 2021, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
     *
     * WSO2 Inc. 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.
     */

    package org.apache.synapse.transport.passthru;

    import org.apache.axis2.context.MessageContext;

    import java.nio.ByteBuffer;
    import java.util.Map;
    import java.util.Properties;

    /**
     * Default class implementing the methods of {@link StreamInterceptor}. A stream interceptor can be written by
     * extending and overding the necessary methods of this class.
     * For an example see{@link LoggingStreamInterceptor}
     */
    public abstract class DefaultStreamInterceptor implements StreamInterceptor {

        private Properties properties = new Properties();

        public boolean interceptSourceRequest(MessageContext axisCtx) {
            return false;
        }

        public boolean sourceRequest(ByteBuffer buffer, MessageContext axisCtx) {
            return true;
        }

        public boolean interceptTargetRequest(MessageContext axisCtx) {
            return false;
        }

        public void targetRequest(ByteBuffer buffer, MessageContext axisCtx) {

        }

        public boolean interceptTargetResponse(MessageContext axisCtx) {
            return false;
        }

        public boolean targetResponse(ByteBuffer buffer, MessageContext axisCtx) {
            return true;
        }

        public boolean interceptSourceResponse(MessageContext axisCtx) {
            return false;
        }

        public void sourceResponse(ByteBuffer buffer, MessageContext axisCtx) {

        }

        public void addProperty(String name, Object value) {
            properties.put(name, value);
        }

        public Map getProperties() {
            return properties;
        }

    }