AbstractRequestContext.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.
*/
package org.apache.commons.fileupload2.core;
import java.util.Objects;
import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.regex.Pattern;
/**
* Abstracts a RequestContext for implementations.
*
* @param <T> The request type.
*/
public abstract class AbstractRequestContext<T> implements RequestContext {
/**
* The Content-Type Pattern for multipart/related Requests.
*/
private static final Pattern MULTIPART_RELATED =
Pattern.compile("^\\s*multipart/related.*", Pattern.CASE_INSENSITIVE);
/**
* Supplies the content length default.
*/
private final LongSupplier contentLengthDefault;
/**
* Supplies the content length string.
*/
private final Function<String, String> contentLengthString;
/**
* The request.
*/
private final T request;
/**
* Constructs a new instance.
*
* @param contentLengthString How to get the content length string.
* @param contentLengthDefault How to get the content length default.
* @param request The request.
*/
protected AbstractRequestContext(final Function<String, String> contentLengthString, final LongSupplier contentLengthDefault, final T request) {
this.contentLengthString = Objects.requireNonNull(contentLengthString, "contentLengthString");
this.contentLengthDefault = Objects.requireNonNull(contentLengthDefault, "contentLengthDefault");
this.request = Objects.requireNonNull(request, "request");
}
/**
* Gets the content length of the request.
*
* @return The content length of the request.
*/
@Override
public long getContentLength() {
try {
return Long.parseLong(contentLengthString.apply(AbstractFileUpload.CONTENT_LENGTH));
} catch (final NumberFormatException e) {
return contentLengthDefault.getAsLong();
}
}
/**
* Gets the request.
*
* @return the request.
*/
public T getRequest() {
return request;
}
/**
* Tests whether the Request of type {@code multipart/related}?
*
* @return whether the Request is of type {@code multipart/related}
* @since 2.0.0
*/
@Override
public boolean isMultipartRelated() {
return MULTIPART_RELATED.matcher(getContentType()).matches();
}
/**
* Returns a string representation of this object.
*
* @return a string representation of this object.
*/
@Override
public String toString() {
return String.format("%s [ContentLength=%s, ContentType=%s]", getClass().getSimpleName(), getContentLength(), getContentType());
}
}