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io.netty.handler.codec.http.multipart.DiskAttribute 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 io.netty.handler.codec.http.multipart;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelException;
import io.netty.handler.codec.http.HttpConstants;
import io.netty.util.internal.ObjectUtil;
import java.io.IOException;
import java.nio.charset.Charset;
import static io.netty.buffer.Unpooled.wrappedBuffer;
/**
* Disk implementation of Attributes
*/
public class DiskAttribute extends AbstractDiskHttpData implements Attribute {
public static String baseDirectory;
public static boolean deleteOnExitTemporaryFile = true;
public static final String prefix = "Attr_";
public static final String postfix = ".att";
private String baseDir;
private boolean deleteOnExit;
/**
* Constructor used for huge Attribute
*/
public DiskAttribute(String name) {
this(name, HttpConstants.DEFAULT_CHARSET);
}
public DiskAttribute(String name, String baseDir, boolean deleteOnExit) {
this(name, HttpConstants.DEFAULT_CHARSET);
this.baseDir = baseDir == null ? baseDirectory : baseDir;
this.deleteOnExit = deleteOnExit;
}
public DiskAttribute(String name, long definedSize) {
this(name, definedSize, HttpConstants.DEFAULT_CHARSET, baseDirectory, deleteOnExitTemporaryFile);
}
public DiskAttribute(String name, long definedSize, String baseDir, boolean deleteOnExit) {
this(name, definedSize, HttpConstants.DEFAULT_CHARSET);
this.baseDir = baseDir == null ? baseDirectory : baseDir;
this.deleteOnExit = deleteOnExit;
}
public DiskAttribute(String name, Charset charset) {
this(name, charset, baseDirectory, deleteOnExitTemporaryFile);
}
public DiskAttribute(String name, Charset charset, String baseDir, boolean deleteOnExit) {
super(name, charset, 0);
this.baseDir = baseDir == null ? baseDirectory : baseDir;
this.deleteOnExit = deleteOnExit;
}
public DiskAttribute(String name, long definedSize, Charset charset) {
this(name, definedSize, charset, baseDirectory, deleteOnExitTemporaryFile);
}
public DiskAttribute(String name, long definedSize, Charset charset, String baseDir, boolean deleteOnExit) {
super(name, charset, definedSize);
this.baseDir = baseDir == null ? baseDirectory : baseDir;
this.deleteOnExit = deleteOnExit;
}
public DiskAttribute(String name, String value) throws IOException {
this(name, value, HttpConstants.DEFAULT_CHARSET);
}
public DiskAttribute(String name, String value, Charset charset) throws IOException {
this(name, value, charset, baseDirectory, deleteOnExitTemporaryFile);
}
public DiskAttribute(String name, String value, Charset charset,
String baseDir, boolean deleteOnExit) throws IOException {
super(name, charset, 0); // Attribute have no default size
setValue(value);
this.baseDir = baseDir == null ? baseDirectory : baseDir;
this.deleteOnExit = deleteOnExit;
}
@Override
public HttpDataType getHttpDataType() {
return HttpDataType.Attribute;
}
@Override
public String getValue() throws IOException {
byte [] bytes = get();
return new String(bytes, getCharset());
}
@Override
public void setValue(String value) throws IOException {
ObjectUtil.checkNotNull(value, "value");
byte [] bytes = value.getBytes(getCharset());
checkSize(bytes.length);
ByteBuf buffer = wrappedBuffer(bytes);
if (definedSize > 0) {
definedSize = buffer.readableBytes();
}
setContent(buffer);
}
@Override
public void addContent(ByteBuf buffer, boolean last) throws IOException {
final long newDefinedSize = size + buffer.readableBytes();
checkSize(newDefinedSize);
if (definedSize > 0 && definedSize < newDefinedSize) {
definedSize = newDefinedSize;
}
super.addContent(buffer, last);
}
@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 Attribute)) {
throw new ClassCastException("Cannot compare " + getHttpDataType() +
" with " + o.getHttpDataType());
}
return compareTo((Attribute) o);
}
public int compareTo(Attribute o) {
return getName().compareToIgnoreCase(o.getName());
}
@Override
public String toString() {
try {
return getName() + '=' + getValue();
} catch (IOException e) {
return getName() + '=' + e;
}
}
@Override
protected boolean deleteOnExit() {
return deleteOnExit;
}
@Override
protected String getBaseDirectory() {
return baseDir;
}
@Override
protected String getDiskFilename() {
return getName() + postfix;
}
@Override
protected String getPostfix() {
return postfix;
}
@Override
protected String getPrefix() {
return prefix;
}
@Override
public Attribute copy() {
final ByteBuf content = content();
return replace(content != null ? content.copy() : null);
}
@Override
public Attribute duplicate() {
final ByteBuf content = content();
return replace(content != null ? content.duplicate() : null);
}
@Override
public Attribute retainedDuplicate() {
ByteBuf content = content();
if (content != null) {
content = content.retainedDuplicate();
boolean success = false;
try {
Attribute duplicate = replace(content);
success = true;
return duplicate;
} finally {
if (!success) {
content.release();
}
}
} else {
return replace(null);
}
}
@Override
public Attribute replace(ByteBuf content) {
DiskAttribute attr = new DiskAttribute(getName(), baseDir, deleteOnExit);
attr.setCharset(getCharset());
if (content != null) {
try {
attr.setContent(content);
} catch (IOException e) {
throw new ChannelException(e);
}
}
return attr;
}
@Override
public Attribute retain(int increment) {
super.retain(increment);
return this;
}
@Override
public Attribute retain() {
super.retain();
return this;
}
@Override
public Attribute touch() {
super.touch();
return this;
}
@Override
public Attribute touch(Object hint) {
super.touch(hint);
return this;
}
}
