org.springframework.mock.web.HeaderValueHolder Maven / Gradle / Ivy
/*
* Copyright 2002-2007 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 org.springframework.mock.web;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
/**
* Internal helper class that serves as value holder for request headers.
*
* @author Juergen Hoeller
* @author Rick Evans
* @since 2.0.1
*/
class HeaderValueHolder {
private final List values = new LinkedList();
public void setValue(Object value) {
this.values.clear();
this.values.add(value);
}
public void addValue(Object value) {
this.values.add(value);
}
public void addValues(Collection values) {
this.values.addAll(values);
}
public void addValueArray(Object values) {
CollectionUtils.mergeArrayIntoCollection(values, this.values);
}
public List getValues() {
return Collections.unmodifiableList(this.values);
}
public Object getValue() {
return (!this.values.isEmpty() ? this.values.get(0) : null);
}
/**
* Find a HeaderValueHolder by name, ignoring casing.
* @param headers the Map of header names to HeaderValueHolders
* @param name the name of the desired header
* @return the corresponding HeaderValueHolder,
* or null if none found
*/
public static HeaderValueHolder getByName(Map headers, String name) {
Assert.notNull(name, "Header name must not be null");
for (Iterator it = headers.keySet().iterator(); it.hasNext();) {
String headerName = (String) it.next();
if (headerName.equalsIgnoreCase(name)) {
return (HeaderValueHolder) headers.get(headerName);
}
}
return null;
}
}