org.springframework.web.servlet.mvc.condition.AbstractMediaTypeExpression Maven / Gradle / Ivy
/*
* Copyright 2002-2016 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.web.servlet.mvc.condition;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestMapping;
/**
* Supports media type expressions as described in:
* {@link RequestMapping#consumes()} and {@link RequestMapping#produces()}.
*
* @author Arjen Poutsma
* @author Rossen Stoyanchev
* @since 3.1
*/
abstract class AbstractMediaTypeExpression implements MediaTypeExpression, Comparable {
protected final Log logger = LogFactory.getLog(getClass());
private final MediaType mediaType;
private final boolean isNegated;
AbstractMediaTypeExpression(String expression) {
if (expression.startsWith("!")) {
this.isNegated = true;
expression = expression.substring(1);
}
else {
this.isNegated = false;
}
this.mediaType = MediaType.parseMediaType(expression);
}
AbstractMediaTypeExpression(MediaType mediaType, boolean negated) {
this.mediaType = mediaType;
this.isNegated = negated;
}
@Override
public MediaType getMediaType() {
return this.mediaType;
}
@Override
public boolean isNegated() {
return this.isNegated;
}
@Override
public int compareTo(AbstractMediaTypeExpression other) {
return MediaType.SPECIFICITY_COMPARATOR.compare(this.getMediaType(), other.getMediaType());
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj != null && getClass() == obj.getClass()) {
AbstractMediaTypeExpression other = (AbstractMediaTypeExpression) obj;
return (this.mediaType.equals(other.mediaType) && this.isNegated == other.isNegated);
}
return false;
}
@Override
public int hashCode() {
return this.mediaType.hashCode();
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
if (this.isNegated) {
builder.append('!');
}
builder.append(this.mediaType.toString());
return builder.toString();
}
}