org.apache.hbase.thirdparty.io.netty.handler.codec.http.multipart.HttpData Maven / Gradle / Ivy
/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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:
*
* https://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.hbase.thirdparty.io.netty.handler.codec.http.multipart;
import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;
import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufHolder;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
/**
* Extended interface for InterfaceHttpData
*/
public interface HttpData extends InterfaceHttpData, ByteBufHolder {
/**
* Returns the maxSize for this HttpData.
*/
long getMaxSize();
/**
* Set the maxSize for this HttpData. When limit will be reached, an exception will be raised.
* Setting it to (-1) means no limitation.
*
* By default, to be set from the HttpDataFactory.
*/
void setMaxSize(long maxSize);
/**
* Check if the new size is not reaching the max limit allowed.
* The limit is always computed in terms of bytes.
*/
void checkSize(long newSize) throws IOException;
/**
* Set the content from the ChannelBuffer (erase any previous data)
* {@link ByteBuf#release()} ownership of {@code buffer} is transferred to this {@link HttpData}.
*
* @param buffer
* must be not null
* @throws IOException
*/
void setContent(ByteBuf buffer) throws IOException;
/**
* Add the content from the ChannelBuffer
*
{@link ByteBuf#release()} ownership of {@code buffer} is transferred to this {@link HttpData}.
*
* @param buffer
* must be not null except if last is set to False
* @param last
* True of the buffer is the last one
* @throws IOException
*/
void addContent(ByteBuf buffer, boolean last) throws IOException;
/**
* Set the content from the file (erase any previous data)
*
* @param file
* must be not null
* @throws IOException
*/
void setContent(File file) throws IOException;
/**
* Set the content from the inputStream (erase any previous data)
*
* @param inputStream
* must be not null
* @throws IOException
*/
void setContent(InputStream inputStream) throws IOException;
/**
*
* @return True if the InterfaceHttpData is completed (all data are stored)
*/
boolean isCompleted();
/**
* Returns the size in byte of the InterfaceHttpData
*
* @return the size of the InterfaceHttpData
*/
long length();
/**
* Returns the defined length of the HttpData.
*
* If no Content-Length is provided in the request, the defined length is
* always 0 (whatever during decoding or in final state).
*
* If Content-Length is provided in the request, this is this given defined length.
* This value does not change, whatever during decoding or in the final state.
*
* This method could be used for instance to know the amount of bytes transmitted for
* one particular HttpData, for example one {@link FileUpload} or any known big {@link Attribute}.
*
* @return the defined length of the HttpData
*/
long definedLength();
/**
* Deletes the underlying storage for a file item, including deleting any
* associated temporary disk file.
*/
void delete();
/**
* Returns the contents of the file item as an array of bytes.
* Note: this method will allocate a lot of memory, if the data is currently stored on the file system.
*
* @return the contents of the file item as an array of bytes.
* @throws IOException
*/
byte[] get() throws IOException;
/**
* Returns the content of the file item as a ByteBuf.
* Note: this method will allocate a lot of memory, if the data is currently stored on the file system.
*
* @return the content of the file item as a ByteBuf
* @throws IOException
*/
ByteBuf getByteBuf() throws IOException;
/**
* Returns a ChannelBuffer for the content from the current position with at
* most length read bytes, increasing the current position of the Bytes
* read. Once it arrives at the end, it returns an EMPTY_BUFFER and it
* resets the current position to 0.
*
* @return a ChannelBuffer for the content from the current position or an
* EMPTY_BUFFER if there is no more data to return
*/
ByteBuf getChunk(int length) throws IOException;
/**
* Returns the contents of the file item as a String, using the default
* character encoding.
*
* @return the contents of the file item as a String, using the default
* character encoding.
* @throws IOException
*/
String getString() throws IOException;
/**
* Returns the contents of the file item as a String, using the specified
* charset.
*
* @param encoding
* the charset to use
* @return the contents of the file item as a String, using the specified
* charset.
* @throws IOException
*/
String getString(Charset encoding) throws IOException;
/**
* Set the Charset passed by the browser if defined
*
* @param charset
* Charset to set - must be not null
*/
void setCharset(Charset charset);
/**
* Returns the Charset passed by the browser or null if not defined.
*
* @return the Charset passed by the browser or null if not defined.
*/
Charset getCharset();
/**
* A convenience getMethod to write an uploaded item to disk. If a previous one
* exists, it will be deleted. Once this getMethod is called, if successful,
* the new file will be out of the cleaner of the factory that creates the
* original InterfaceHttpData object.
*
* @param dest
* destination file - must be not null
* @return True if the write is successful
* @throws IOException
*/
boolean renameTo(File dest) throws IOException;
/**
* Provides a hint as to whether or not the file contents will be read from
* memory.
*
* @return True if the file contents is in memory.
*/
boolean isInMemory();
/**
*
* @return the associated File if this data is represented in a file
* @exception IOException
* if this data is not represented by a file
*/
File getFile() throws IOException;
@Override
HttpData copy();
@Override
HttpData duplicate();
@Override
HttpData retainedDuplicate();
@Override
HttpData replace(ByteBuf content);
@Override
HttpData retain();
@Override
HttpData retain(int increment);
@Override
HttpData touch();
@Override
HttpData touch(Object hint);
}