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Java example source code file (MemoryFileUpload.java)

This example Java source code file (MemoryFileUpload.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

abstractmemoryhttpdata, attribute, bytebuf, cannot, channelexception, charset, classcastexception, completed, fileupload, httpdatatype, memoryfileupload, nullpointerexception, override, string

The MemoryFileUpload.java Java example source code

/*
 * 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:
 *
 *   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.netty.handler.codec.http.multipart;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelException;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.HttpHeaderValues;

import java.io.IOException;
import java.nio.charset.Charset;

/**
 * Default FileUpload implementation that stores file into memory.<br>
* * Warning: be aware of the memory limitation. */ public class MemoryFileUpload extends AbstractMemoryHttpData implements FileUpload { private String filename; private String contentType; private String contentTransferEncoding; public MemoryFileUpload(String name, String filename, String contentType, String contentTransferEncoding, Charset charset, long size) { super(name, charset, size); setFilename(filename); setContentType(contentType); setContentTransferEncoding(contentTransferEncoding); } @Override public HttpDataType getHttpDataType() { return HttpDataType.FileUpload; } @Override public String getFilename() { return filename; } @Override public void setFilename(String filename) { if (filename == null) { throw new NullPointerException("filename"); } this.filename = filename; } @Override public int hashCode() { return getName().hashCode(); } @Override public boolean equals(Object o) { if (!(o instanceof Attribute)) { return false; } Attribute attribute = (Attribute) o; return getName().equalsIgnoreCase(attribute.getName()); } @Override public int compareTo(InterfaceHttpData o) { if (!(o instanceof FileUpload)) { throw new ClassCastException("Cannot compare " + getHttpDataType() + " with " + o.getHttpDataType()); } return compareTo((FileUpload) o); } public int compareTo(FileUpload o) { int v; v = getName().compareToIgnoreCase(o.getName()); if (v != 0) { return v; } // TODO should we compare size for instance ? return v; } @Override public void setContentType(String contentType) { if (contentType == null) { throw new NullPointerException("contentType"); } this.contentType = contentType; } @Override public String getContentType() { return contentType; } @Override public String getContentTransferEncoding() { return contentTransferEncoding; } @Override public void setContentTransferEncoding(String contentTransferEncoding) { this.contentTransferEncoding = contentTransferEncoding; } @Override public String toString() { return HttpHeaderNames.CONTENT_DISPOSITION + ": " + HttpHeaderValues.FORM_DATA + "; " + HttpHeaderValues.NAME + "=\"" + getName() + "\"; " + HttpHeaderValues.FILENAME + "=\"" + filename + "\"\r\n" + HttpHeaderNames.CONTENT_TYPE + ": " + contentType + (getCharset() != null? "; " + HttpHeaderValues.CHARSET + '=' + getCharset().name() + "\r\n" : "\r\n") + HttpHeaderNames.CONTENT_LENGTH + ": " + length() + "\r\n" + "Completed: " + isCompleted() + "\r\nIsInMemory: " + isInMemory(); } @Override public FileUpload copy() { final ByteBuf content = content(); return replace(content != null ? content.copy() : content); } @Override public FileUpload duplicate() { final ByteBuf content = content(); return replace(content != null ? content.duplicate() : content); } @Override public FileUpload retainedDuplicate() { ByteBuf content = content(); if (content != null) { content = content.retainedDuplicate(); boolean success = false; try { FileUpload duplicate = replace(content); success = true; return duplicate; } finally { if (!success) { content.release(); } } } else { return replace(null); } } @Override public FileUpload replace(ByteBuf content) { MemoryFileUpload upload = new MemoryFileUpload( getName(), getFilename(), getContentType(), getContentTransferEncoding(), getCharset(), size); if (content != null) { try { upload.setContent(content); return upload; } catch (IOException e) { throw new ChannelException(e); } } return upload; } @Override public FileUpload retain() { super.retain(); return this; } @Override public FileUpload retain(int increment) { super.retain(increment); return this; } @Override public FileUpload touch() { super.touch(); return this; } @Override public FileUpload touch(Object hint) { super.touch(hint); return this; } }

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