michael-o commented on a change in pull request #209: URL: https://github.com/apache/httpcomponents-core/pull/209#discussion_r464383194
########## File path: httpcore5/src/main/java/org/apache/hc/core5/http/io/entity/NullEntity.java ########## @@ -0,0 +1,115 @@ +/* + * ==================================================================== + * 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 org.apache.hc.core5.http.io.entity; + +import org.apache.hc.core5.annotation.Contract; +import org.apache.hc.core5.annotation.ThreadingBehavior; +import org.apache.hc.core5.function.Supplier; +import org.apache.hc.core5.http.Header; +import org.apache.hc.core5.http.HttpEntity; + +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.util.Collections; +import java.util.List; +import java.util.Set; + +/** + * An empty entity with no content-type. This type may be used for convenience + * in place of an empty {@link ByteArrayEntity}. + * + * @since 5.1 + */ +@Contract(threading = ThreadingBehavior.IMMUTABLE) +public final class NullEntity implements HttpEntity { + + public static final NullEntity INSTANCE = new NullEntity(); + + private NullEntity() {} + + @Override + public boolean isRepeatable() { + return true; + } + + @Override + public InputStream getContent() throws IOException, UnsupportedOperationException { + return EmptyInputStream.INSTANCE; + } + + @Override + public void writeTo(final OutputStream outStream) throws IOException {} + + @Override + public boolean isStreaming() { + return false; + } + + @Override + public Supplier<List<? extends Header>> getTrailers() { + return null; + } + + @Override + public void close() throws IOException {} + + @Override + public long getContentLength() { + return 0; + } + + @Override + public String getContentType() { + return null; + } + + @Override + public String getContentEncoding() { + return null; + } + + @Override + public boolean isChunked() { + return false; + } + + @Override + public Set<String> getTrailerNames() { + return Collections.emptySet(); + } + + private static final class EmptyInputStream extends InputStream { Review comment: I think since this is a `NullEntity` it should have a `NullInputStream` for consistence. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
