/*
* ====================================================================
* 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
* .
*
*/
package org.apache.hc.core5.http.message;
import java.util.Iterator;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HeaderElement;
import org.apache.hc.core5.util.Args;
/**
* {@link java.util.Iterator} of {@link org.apache.hc.core5.http.HeaderElement}s.
*
* @since 4.0
*/
public class BasicHeaderElementIterator extends AbstractHeaderElementIterator {
private final HeaderValueParser parser;
/**
* Creates a new instance of BasicHeaderElementIterator
*/
public BasicHeaderElementIterator(
final Iterator headerIterator,
final HeaderValueParser parser) {
super(headerIterator);
this.parser = Args.notNull(parser, "Parser");
}
public BasicHeaderElementIterator(final Iterator headerIterator) {
this(headerIterator, BasicHeaderValueParser.INSTANCE);
}
@Override
HeaderElement parseHeaderElement(final CharSequence buf, final ParserCursor cursor) {
final HeaderElement e = this.parser.parseHeaderElement(buf, cursor);
if (!(e.getName().length() == 0 && e.getValue() == null)) {
return e;
}
return null;
}
}