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    • org.springframework.mock.web.HeaderValueHolder Maven / Gradle / Ivy

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    /*
 * Copyright 2002-2012 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.ArrayList;
import java.util.Collection;
import java.util.Collections;
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 List getStringValues() {
		List stringList = new ArrayList(this.values.size());
		for (Object value : this.values) {
			stringList.add(value.toString());
		}
		return Collections.unmodifiableList(stringList);
	}

	public Object getValue() {
		return (!this.values.isEmpty() ? this.values.get(0) : null);
	}

	public String getStringValue() {
		return (!this.values.isEmpty() ? this.values.get(0).toString() : 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 {@code null} if none found
	 */
	public static HeaderValueHolder getByName(Map headers, String name) {
		Assert.notNull(name, "Header name must not be null");
		for (String headerName : headers.keySet()) {
			if (headerName.equalsIgnoreCase(name)) {
				return headers.get(headerName);
			}
		}
		return null;
	}

}
    
    
    
    

    




    
    
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