io.servicecomb.foundation.vertx.http.StandardHttpServletRequestEx.java Source code

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Here is the source code for io.servicecomb.foundation.vertx.http.StandardHttpServletRequestEx.java

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/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * 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 io.servicecomb.foundation.vertx.http;

import java.io.IOException;

import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

import org.apache.commons.io.IOUtils;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.servicecomb.foundation.vertx.stream.BufferInputStream;
import io.vertx.core.buffer.Buffer;

public class StandardHttpServletRequestEx extends HttpServletRequestWrapper implements HttpServletRequestEx {
    private BodyBufferSupport bodyBuffer = new BodyBufferSupportImpl();

    private boolean cacheRequest;

    private ServletInputStream inputStream;

    public StandardHttpServletRequestEx(HttpServletRequest request) {
        super(request);
    }

    public void setCacheRequest(boolean cacheRequest) {
        this.cacheRequest = cacheRequest;
    }

    @Override
    public ServletInputStream getInputStream() throws IOException {
        if (this.inputStream == null) {
            if (cacheRequest) {
                byte inputBytes[] = IOUtils.toByteArray(getRequest().getInputStream());
                ByteBuf byteBuf = Unpooled.wrappedBuffer(inputBytes);
                this.inputStream = new BufferInputStream(byteBuf);
                setBodyBuffer(Buffer.buffer(Unpooled.wrappedBuffer(byteBuf)));
            } else {
                this.inputStream = getRequest().getInputStream();
            }
        }
        return this.inputStream;
    }

    @Override
    public void setBodyBuffer(Buffer bodyBuffer) {
        this.bodyBuffer.setBodyBuffer(bodyBuffer);
    }

    @Override
    public Buffer getBodyBuffer() {
        return bodyBuffer.getBodyBuffer();
    }

    @Override
    public byte[] getBodyBytes() {
        return bodyBuffer.getBodyBytes();
    }

    @Override
    public int getBodyBytesLength() {
        return bodyBuffer.getBodyBytesLength();
    }
}