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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017 Amdocs
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.openecomp.sparky.dal.servlet;
import com.google.common.primitives.Bytes;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
/**
* The Class ResettableStreamHttpServletRequest.
*/
public class ResettableStreamHttpServletRequest extends HttpServletRequestWrapper {
private byte[] requestBody = new byte[0];
private boolean bufferFilled = false;
/**
* Constructs a request object wrapping the given request.
*
* @param request The request to wrap
* @throws IllegalArgumentException if the request is null
*/
public ResettableStreamHttpServletRequest(HttpServletRequest request) {
super(request);
}
/**
* Get request body.
*
* @return Bytes with the request body contents.
* @throws IOException In case stream reqding fails.
*/
public byte[] getRequestBody() throws IOException {
if (bufferFilled) {
return Arrays.copyOf(requestBody, requestBody.length);
}
InputStream inputStream = super.getInputStream();
byte[] buffer = new byte[102400];
int bytesRead;
while ((bytesRead = inputStream.read(buffer)) != -1) {
requestBody = Bytes.concat(this.requestBody, Arrays.copyOfRange(buffer, 0, bytesRead));
}
bufferFilled = true;
return requestBody;
}
@Override
public ServletInputStream getInputStream() throws IOException {
return new CustomServletInputStream(getRequestBody());
}
/**
* The Class CustomServletInputStream.
*/
private static class CustomServletInputStream extends ServletInputStream {
private ByteArrayInputStream buffer;
/**
* Instantiates a new custom servlet input stream.
*
* @param contents the contents
*/
public CustomServletInputStream(byte[] contents) {
this.buffer = new ByteArrayInputStream(contents);
}
/* (non-Javadoc)
* @see java.io.InputStream#read()
*/
@Override
public int read() throws IOException {
return buffer.read();
}
@Override
public boolean isFinished() {
return buffer.available() == 0;
}
@Override
public boolean isReady() {
return true;
}
@Override
public void setReadListener(ReadListener arg0) {
throw new RuntimeException("Not implemented");
}
}
}
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