org.apache.juneau.http.HeaderRangeArray Maven / Gradle / Ivy
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package org.apache.juneau.http;
import java.util.*;
import org.apache.juneau.internal.*;
/**
* Category of headers that consist of simple comma-delimited lists of strings with q-values.
*
*
*
Example
*
* Accept-Encoding: compress;q=0.5, gzip;q=1.0
*
*
* Additional Information
*
*/
public class HeaderRangeArray {
final StringRange[] typeRanges;
private final List typeRangesList;
/**
* Constructor.
*
* @param value The raw header value.
*/
protected HeaderRangeArray(String value) {
this.typeRanges = StringRange.parse(value);
this.typeRangesList = Collections.unmodifiableList(Arrays.asList(typeRanges));
}
/**
* Given a list of type values, returns the best match for this header.
*
* @param types The types to match against.
* @return The index into the array of the best match, or -1 if no suitable matches could be found.
*/
public int findMatch(String[] types) {
// Type ranges are ordered by 'q'.
// So we only need to search until we've found a match.
for (StringRange mr : typeRanges)
for (int i = 0; i < types.length; i++)
if (mr.matches(types[i]))
return i;
return -1;
}
/**
* Returns the list of the types ranges that make up this header.
*
*
* The types ranges in the list are sorted by their q-value in descending order.
*
* @return An unmodifiable list of type ranges.
*/
public List asSimpleRanges() {
return typeRangesList;
}
@Override /* Object */
public String toString() {
return StringUtils.join(typeRanges, ',');
}
}