/*
* 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.AbstractReferenceCounted;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelException;
import io.netty.handler.codec.http.HttpConstants;
import java.io.IOException;
import java.nio.charset.Charset;
/**
* Abstract HttpData implementation
*/
public abstract class AbstractHttpData extends AbstractReferenceCounted implements HttpData {
protected final String name;
protected long definedSize;
protected long size;
protected Charset charset = HttpConstants.DEFAULT_CHARSET;
protected boolean completed;
protected AbstractHttpData(String name, Charset charset, long size) {
if (name == null) {
throw new NullPointerException("name");
}
name = name.trim();
if (name.isEmpty()) {
throw new IllegalArgumentException("empty name");
}
for (int i = 0; i < name.length(); i ++) {
char c = name.charAt(i);
if (c > 127) {
throw new IllegalArgumentException(
"name contains non-ascii character: " + name);
}
// Check prohibited characters.
switch (c) {
case '=':
case ',':
case ';':
case ' ':
case '\t':
case '\r':
case '\n':
case '\f':
case 0x0b: // Vertical tab
throw new IllegalArgumentException(
"name contains one of the following prohibited characters: " +
"=,; \\t\\r\\n\\v\\f: " + name);
}
}
this.name = name;
if (charset != null) {
setCharset(charset);
}
definedSize = size;
}
@Override
public String getName() {
return name;
}
@Override
public boolean isCompleted() {
return completed;
}
@Override
public Charset getCharset() {
return charset;
}
@Override
public void setCharset(Charset charset) {
if (charset == null) {
throw new NullPointerException("charset");
}
this.charset = charset;
}
@Override
public long length() {
return size;
}
@Override
public ByteBuf data() {
try {
return getByteBuf();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
protected void deallocate() {
delete();
}
@Override
public HttpData retain() {
super.retain();
return this;
}
@Override
public HttpData retain(int increment) {
super.retain(increment);
return this;
}
}