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package com.sun.jersey.core.header;
import com.sun.jersey.core.header.reader.HttpHeaderReader;
import java.text.ParseException;
import javax.ws.rs.core.MediaType;
import java.util.Map;
/**
* An quality source media type.
*
* @author Paul.Sandoz@Sun.Com
*/
public class QualitySourceMediaType extends MediaType {
public static final String QUALITY_SOURCE_FACTOR = "qs";
public static final int DEFAULT_QUALITY_SOURCE_FACTOR = 1000;
private final int qs;
public QualitySourceMediaType(String p, String s) {
super(p, s);
qs = DEFAULT_QUALITY_SOURCE_FACTOR;
}
public QualitySourceMediaType(String p, String s, int qs, Map<String, String> parameters) {
super(p, s, parameters);
this.qs = qs;
}
public QualitySourceMediaType(MediaType mt) {
this(mt.getType(), mt.getSubtype(), getQs(mt), mt.getParameters());
}
public int getQualitySource() {
return qs;
}
public static QualitySourceMediaType valueOf(HttpHeaderReader reader) throws ParseException {
// Skip any white space
reader.hasNext();
// Get the type
String type = reader.nextToken();
reader.nextSeparator('/');
// Get the subtype
String subType = reader.nextToken();
int qs = DEFAULT_QUALITY_SOURCE_FACTOR;
Map<String, String> parameters = null;
if (reader.hasNext()) {
parameters = HttpHeaderReader.readParameters(reader);
if (parameters != null) {
qs = getQs(parameters.get(QUALITY_SOURCE_FACTOR));
}
}
return new QualitySourceMediaType(type, subType, qs, parameters);
}
public static int getQualitySource(MediaType mt) {
if (mt instanceof QualitySourceMediaType) {
QualitySourceMediaType qsmt = (QualitySourceMediaType)mt;
return qsmt.getQualitySource();
} else {
return getQs(mt);
}
}
private static int getQs(MediaType mt) {
try {
return getQs(mt.getParameters().get(QUALITY_SOURCE_FACTOR));
} catch (ParseException ex) {
throw new IllegalArgumentException(ex);
}
}
private static int getQs(String v) throws ParseException {
if (v == null)
return DEFAULT_QUALITY_SOURCE_FACTOR;
try {
final int qs = (int)(Float.valueOf(v) * 1000.0);
if (qs < 0)
throw new ParseException("The quality source (qs) value, " + v + ", must be non-negative number", 0);
return qs;
} catch (NumberFormatException ex) {
ParseException pe = new ParseException("The quality source (qs) value, " + v + ", is not a valid value", 0);
pe.initCause(ex);
throw pe;
}
}
}