org.apache.wink.common.internal.providers.header.AcceptHeaderDelegate Maven / Gradle / Ivy
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package org.apache.wink.common.internal.providers.header;
import java.util.LinkedList;
import java.util.List;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.RuntimeDelegate.HeaderDelegate;
import org.apache.wink.common.internal.http.Accept;
import org.apache.wink.common.internal.utils.SoftConcurrentMap;
import org.apache.wink.common.internal.utils.StringUtils;
public class AcceptHeaderDelegate implements HeaderDelegate {
private static final SoftConcurrentMap cache = new SoftConcurrentMap();
public Accept fromString(String value) throws IllegalArgumentException {
Accept cached = cache.get(value);
if (cached != null) {
return cached;
}
// if there is no Accept header it means that all media types are
// acceptable
if (value == null) {
value = MediaType.WILDCARD;
}
List list = new LinkedList();
String[] mediaTypes = StringUtils.fastSplit(value, ","); //$NON-NLS-1$
for (String mediaRange : mediaTypes) {
mediaRange = mediaRange.trim();
if (mediaRange.length() == 0) {
continue;
}
list.add(MediaType.valueOf(mediaRange));
}
return cache.put(value, new Accept(list));
}
public String toString(Accept value) {
StringBuilder result = new StringBuilder();
for (MediaType valuedMediaType : value.getMediaTypes()) {
if (result.length() != 0)
result.append(", "); //$NON-NLS-1$
result.append(valuedMediaType.toString());
}
return result.toString();
}
}