net.hasor.web.upload.FileItemBase Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 net.hasor.web.upload;
import net.hasor.utils.io.IOUtils;
import net.hasor.web.FileItem;
import net.hasor.web.FileItemHeaders;
import net.hasor.web.FileItemStream;
import net.hasor.web.upload.util.Streams;
import java.io.*;
/**
* This class represents a file or form item that was received within a
* multipart/form-data POST request.
*
* @version $Id: FileItem.java 1454690 2013-03-09 12:08:48Z simonetripodi $
* @since 1.3 additionally implements FileItemHeadersSupport
*/
public abstract class FileItemBase implements FileItem {
/** The headers, if any. */
private final FileItemHeaders headers;
/** The file items content type. */
private final String contentType;
/** The file items file name. */
private final String name;
/** The file items field name. */
private final String fieldName;
/** Whether the file item is a form field. */
private final boolean formField;
//
public FileItemBase(FileItemStream stream) {
this.headers = stream.getHeaders();
this.contentType = stream.getContentType();
this.name = stream.getName();
this.fieldName = stream.getFieldName();
this.formField = stream.isFormField();
}
//
@Override
public FileItemHeaders getHeaders() {
return this.headers;
}
@Override
public String getContentType() {
return this.contentType;
}
@Override
public String getName() {
return this.name;
}
@Override
public String getFieldName() {
return this.fieldName;
}
@Override
public boolean isFormField() {
return this.formField;
}
//
@Override
public byte[] get() throws IOException {
InputStream inStream = this.openStream();
if (inStream == null) {
throw new IOException("openStream result is null.");
}
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
IOUtils.copy(inStream, outStream);
IOUtils.closeQuietly(inStream);
return outStream.toByteArray();
}
@Override
public String getString(String encoding) throws IOException {
InputStream inStream = this.openStream();
if (inStream == null) {
throw new IOException("openStream result is null.");
}
String asString = Streams.asString(inStream, encoding);
IOUtils.closeQuietly(inStream);
return asString;
}
@Override
public String getString() throws IOException {
InputStream inStream = this.openStream();
if (inStream == null) {
throw new IOException("openStream result is null.");
}
String asString = Streams.asString(inStream);
IOUtils.closeQuietly(inStream);
return asString;
}
@Override
public void writeTo(File outputFile) throws IOException {
InputStream inStream = this.openStream();
if (inStream == null) {
throw new IOException("openStream result is null.");
}
BufferedInputStream in = null;
BufferedOutputStream out = null;
try {
File parentFile = outputFile.getParentFile();
if (!parentFile.exists()) {
parentFile.mkdirs();
}
in = new BufferedInputStream(inStream);
out = new BufferedOutputStream(new FileOutputStream(outputFile));
IOUtils.copy(in, out);
} finally {
IOUtils.closeQuietly(in);
IOUtils.closeQuietly(out);
}
}
@Override
public void writeTo(OutputStream outStream) throws IOException {
InputStream inStream = this.openStream();
if (inStream == null) {
throw new IOException("openStream result is null.");
}
IOUtils.copy(inStream, outStream);
IOUtils.closeQuietly(inStream);
}
}