MultipartFormEntity.java
/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package com.foxinmy.weixin4j.http.apache.mime;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import com.foxinmy.weixin4j.http.ContentType;
import com.foxinmy.weixin4j.http.entity.HttpEntity;
class MultipartFormEntity implements HttpEntity {
private final AbstractMultipartForm multipart;
private final ContentType contentType;
private final long contentLength;
MultipartFormEntity(final AbstractMultipartForm multipart,
final ContentType contentType, final long contentLength) {
super();
this.multipart = multipart;
this.contentType = contentType;
this.contentLength = contentLength;
}
AbstractMultipartForm getMultipart() {
return this.multipart;
}
public boolean isRepeatable() {
return this.contentLength != -1;
}
public boolean isChunked() {
return !isRepeatable();
}
public boolean isStreaming() {
return !isRepeatable();
}
@Override
public long getContentLength() {
return this.contentLength;
}
public ContentType getContentType() {
return this.contentType;
}
@Override
public InputStream getContent() throws IOException {
if (this.contentLength < 0) {
throw new IllegalArgumentException("Content length is unknown");
} else if (this.contentLength > 5 * 1024 * 1024) {
throw new IllegalArgumentException("Content length is too long: "
+ this.contentLength);
}
final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
writeTo(outstream);
outstream.flush();
return new ByteArrayInputStream(outstream.toByteArray());
}
@Override
public void writeTo(final OutputStream outstream) throws IOException {
this.multipart.writeTo(outstream);
}
}