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Java DSL for easy testing of REST services
/*
* Copyright 2019 the original author or authors.
*
* Licensed 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 io.restassured.http;
import io.restassured.internal.MultiValueEntity;
import java.util.*;
import static io.restassured.internal.common.assertion.AssertParameter.notNull;
/**
* Represents collection of headers
*/
public class Headers implements Iterable {
private final MultiValueEntity headers;
public Headers(Header... headers) {
this(Arrays.asList(headers));
}
public Headers(List headers) {
notNull(headers, "Headers");
this.headers = new MultiValueEntity<>(headers);
}
/**
* @return The size of the headers
*/
public int size() {
return headers.size();
}
/**
* @return true if one or more headers are defined, false otherwise.
*/
public boolean exist() {
return headers.exist();
}
/**
* See if a header with the given name exists
*
* @param headerName The name of the header to check
* @return true if the header exists
*/
public boolean hasHeaderWithName(String headerName) {
return headers.hasEntityWithName(headerName);
}
/**
* @return All headers as a list.
*/
protected List list() {
return headers.list();
}
/**
* Get a single header with the supplied name. If there are several headers match the headerName then
* the last one is returned.
*
* @param headerName The name of the header to find
* @return The found header or null if no header was found.
*/
public Header get(String headerName) {
notNull(headerName, "Header name");
return headers.get(headerName);
}
/**
* Get a single header with the supplied name. If there are several headers match the headerName then
* the last one is returned.
*
* @param headerName The name of the header to find
* @return The found header value or null if no header was found.
*/
public String getValue(String headerName) {
return headers.getValue(headerName);
}
/**
* Get all header values of the header with supplied name. If there's only one header matching the headerName then
* a list with only that header value is returned.
*
* @param headerName The name of the header to find
* @return The found header values or empty list if no header was found.
*/
public List getValues(String headerName) {
return headers.getValues(headerName);
}
/**
* Get all headers with the supplied name. If there's only one header matching the headerName then
* a list with only that header is returned.
*
* @param headerName The name of the header to find
* @return The found headers or empty list if no header was found.
*/
public List getList(String headerName) {
return headers.getList(headerName);
}
/**
* @return Headers iterator
*/
public Iterator iterator() {
return headers.iterator();
}
/**
* @return All headers as a list
*/
public List asList() {
return headers.asList();
}
/**
* An alternative way to create a Headers object from the constructor.
*
* @param header The header to be included
* @param additionalHeaders Additional headers to be included (optional)
* @return A new headers object containing the specified headers
*/
public static Headers headers(Header header, Header... additionalHeaders) {
notNull(header, "Header");
final List headerList = new LinkedList();
headerList.add(header);
if (additionalHeaders != null) {
Collections.addAll(headerList, additionalHeaders);
}
return new Headers(headerList);
}
@Override
public String toString() {
return headers.toString();
}
}